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Saudi Aramco Drafting ManualSaudi Aramco Drafting ManualSaudi Aramco Drafting ManualSaudi Aramco Drafting Manual Revision Date: Nov 12, 2001

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TABLE OF CONTENT Introduction 5

1 Definitions 6

1.1 As-Built Drawings 6

1.2 CADD Drawings (Computer Aided Design & Drafting) 6

1.3 Demolition Drawings 6

1.4 Drawing Completion Certificate (DCC) 6

1.5 Drawing Management System (DMS) 6

1.6 Drawing / Sheet Number 7

1.7 Emergency Drawing 7

1.8 Engineering Drawing 7

1.9 Engineering From 7

1.10 Index Letter 8

1.11 Key Drawing 8

1.12 Library Drawing 8

1.13 Responsible Engineering Office (REO) 9

1.14 Standard Drawing 9

1.15 Title Block 9

1.16 Vendor Drawings 10

1.17 Abbreviations 10

2 Drawing Format & Media 12

2.1 Sizes 12

2.2 Media 12

3 Drawing Index / Type 13

3.1 Index 13

3.2 Type 13

4 Drawing Numbers & Related 14

4.1 Drawing Number (Alpha/Numeric) 14

4.2 Sheet Number 15

4.3 Revision Number 18

4.4 Drawing Index Number 19

4.5 Plant Numbers 20

4.6 Job Order / EWO Numbers 21

4.7 Request Drawing Numbers 22

5 Drawing Titles 23

5.1 Line 1, Content of Drawings 23

5.2 Line 2, Subject or Service 23


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5.3 Line 3, Plant Number 23

5.4 Line 4, Geographical Location 23

6 Other Numbers 24

6.1 General 24

6.2 Building Numbers 24

6.3 Cable & Conduit Numbers 25

6.4 Equipment Tag Numbers 26

6.5 Instrument Tag Numbers 29

6.6 Pipeline Numbers 30

6.7 Dummy Incremental Numbers 31

7 Handling of Drawings 32

8 Requesting Drawings 34

9 Preparing & Revising Drawings 38

9.1 Graphic Scales 42

9.2 Canceling Drawings 42

9.3 Preparing Demolition Drawings 43

9.4 Designing Emergency Drawings 44

9.5 As-Built Drawings 44

10 Certifying & Submitting Drawings 46

11 CADD Standards 47

11.1 General CAD Standards 47

11.1.1 File Naming Conversions 47

11.1.2 Working Units 48

11.1.3 Product Seed Files 50

11.1.4 Saudi Aramco Forms 50

11.1.5 Level Structure (LV) 51

11.1.6 Color Table (CO) 51

11.1.7 Line Weights (LW) 51

11.1.8 Line Codes (LC) 52

11.1.9 Fonts 53

11.1.10 Environmental Variables 54

11.1.11 Dos and Donts 54

11.1.12 Electrical File Submittal 56

11.1.13 Title Block Data Entry 56

11.1.14 Title Block Validation 61

11.1.15 Title Block Reporting 62

11.2 Piping & Instrument Diagram (PID) 64


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11.2.2 Symbols 64

11.2.3 Line Styles 64

11.2.4 Seed File & Form 65

11.2.5 File Definitions 66

11.3 Process Flow Diagram (PFD) 66


11.3.2 Symbols 66




11.4 Instrument Loop Diagram (ILD) 67


11.4.2 Symbols 68




11.5 Electrical One Line Diagram (E1L) 69


11.5.2 Symbols 69




11.6 Drawing Engineering Forms (DEF) 71


11.6.2 Symbols 71




11.7 Valve Operating Diagram (VOD) 73


11.7.2 Symbols 74




11.8 Facility Plot Plan (FPP) 75



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11.8.2 Symbols 75



11.8.5 Drawing Initialization 76

11.8.6 Composite Drawings 77


11.9 Communications (COM) 78


11.9.2 Symbols 78




12 Drawing Samples 80

12.1 Piping & Instrument Diagram (PID) 80

12.2 Process Flow Diagram (PFD) 80

12.3 Plot Plan, Site Plan (FPP) 80

12.4 Equipments Layout (EQA) 81

12.5 Plan and Profile (PRF) 81

12.6 Valve Operating Diagram (VOD) 82

12.7 Hydrostatic Test Diagram (HYD) 82

12.8 Piping Plan Layout (PPL) 82

12.9 Electrical One Line Diagram (E1L) 83

12.10 Three Line Diagram (E1L) 83

12.11 Wiring Diagram (EWD) 84

12.12 Schematic Diagram (SCM) 84

12.13 Elementary Diagram (ELM) 84

12.14 Interconnection Diagram (ECD) 85

12.15 ESD Login Diagram (LOG) 85

12.16 Instrument Loop Diagram (ILD) 85

12.17 Area Classification Diagram (HAZ) 86

12.18 Building Floor Plan & Elevation (ARC) 86

12.19 Instruments Points & Lines (IPL) 87

12.20 Isometric Piping Details (ISO) 87


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INTRODUCTION The intent of this manual is to specify the requirements for the development and modification of Saudi

Aramco drawings while maintaining their uniformity and integrity with no compromise. This issue of

the Drafting Manual supersedes the issue of December 31, 1994. Following are the primary changes incorporated in this issue:

I. Drawing media, certification and submittal requirements are covered under SAEP-334,

Certification and Submittal of Saudi Aramco Engineering Drawings.

II. Development and management of Vendor Drawings is covered under SAEP-111, Vendor

Drawings.

III. Document Control portion has been removed as it relates to EDSD internal functions only.

IV. Volume I, Instructions and procedures; Volume II, CADD Standards; Volume IV and Volume

V, Drawing Samples have been combined in this manual.

V. Volumes III, Drawing Management System has been deleted.

It shall be made clear, hereby, that any deviation of the requirements of this manual will not be

acceptable unless agreed upon, beforehand, with the Chief Draftsman, or by a waiver request per

SAEP-302.

Document Responsibility:

N.H. ALAHAIMER Chief Draftsman November 12, 2001

Approved by:

A.A. AL-SAADI Chief Engineer November 12, 2001


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1. DEFINITIONS

1.1 As-Built Drawing

An Engineering Drawing that has been revised to reflect actual field conditions after the completion of construction. Generally, 'As-Built' refers to the initial modification of

drawings after the initial construction phase. Additions or changes to a drawing resulting

from facility modification must also be verified as 'As-Built' and referenced to the

secondary job order/EWO.

1.2 CADD Drawing (Computer Aided Design/Drafting)

The use of any form of computerized equipment for the production of drawings. Specific

to this Manual, CADD refers to the use of the Microstation to produce engineering

drawings.

1.3 Demolition Drawing Any existing drawing which covers a facility within an operating Plant may be selected as

a Demolition Drawing for Plant upgrade and renovation purposes. Demolition Drawings

may be of any type, i.e. Process diagrams, Plant layouts, Equipment arrangement,

Electrical underground layouts, etc.

1.4 Drawing Completion Certificate (DCC)

A document bearing the names and signatures of persons authorized to certify that an engineering drawing meets the applicable Saudi Aramco engineering, drafting and CADD

standards and related procedures. (Refer to SAEP-334 for details).

1.5 Drawing Management System (DMS)

Automated hardware and software system designed for storage of drawings in an optical

disk library for the purpose of viewing and printing of these drawings and to emulate the

administrative forms used for the creation, revision and deletion of drawings.


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1.6 Drawing/Sheet Number

An arrangement of 11 alpha/numeric characters used to provide the unique identity for individual Engineering Drawings. The arrangement takes the format of XX-XXXXXX-XXX.

The basic elements are:

a) Prefix Letter b) Sheet Size c) Identifying Number d) Sheet Number

1.7 Emergency Drawing

Any Engineering Drawing that has been designated by the Manager of a Saudi Aramco plant as being critical to the plants operations during a disaster situation. The words

"Emergency Drawings" must appear on all designated drawings to be officially recognized

as emergency items. These drawings are given top priority in every case.

1.8 Engineering Drawing

Any drawing produced on an approved Saudi Aramco engineering form, by Saudi Aramco (or for Saudi Aramco by approved sources) which bears a Saudi Aramco drawing number

and which was prepared for the purpose of identifying engineering related information to

be used for the construction, operation or maintenance of a Saudi Aramco plant and

facility. Engineering Drawing is the general term used throughout the Saudi Aramco

Drafting Manual.

1.9 Engineering Forms

Forms used for the presentation of engineering information which bear an official Saudi

Aramco form number followed by "ENG" abbreviation for Engineering and the latest date

of form revision. Forms may vary in size depending upon the information being

presented.


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1.10 Index Letter

Single alpha character in the range A to Z (excluding I & O) used as an indicator for

various types of drawings and/or equipment. See Standard Drawing AE-036411 sheet

001 for current listing.

1.11 Key Drawings

An Engineering Drawing which has been designated for continued facility operation and maintenance, that the Proponent Organization and Project Management jointly agree is of

enough significance warranting their review and signature. Typical Key drawings shall

include:

Piping and Instrument Diagrams (PID)

Process Flow Diagrams (PFD)

Plot Plans (FPP)

Equipment Layouts (EQA)

Piping Layouts (PPL)

Underground Installation Plans (PPL)

Electrical One Line (E1L)

Three Line Diagrams (E1L)

ESD Logic Diagrams (LOG)

Instrument Installation Schedules (IIS)

Instrument Loop Diagrams (ILD)

Area Classification Plans (HAZ)

Safety Instruction Sheets (SIS)

Building Floor Plans & Elevations (ARC)

Other engineering drawings may be designated as Key drawings by the Proponent

Organizations or the Project Management Team jointly with the Proponent Organization

as appropriate for their specific projects prior to the start of project detail design.

1.12 Library Drawings

Library Drawings are drawings of designs previously used or developed to be used as

guidelines for new projects in Saudi Aramco facilities. Use of these drawings in future

similar projects shall be considered.


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Library drawings provide pre-designed information that can be used on a repetitive basis. The utilization of Library Drawings can improve the use of stock material and

eliminate the need for individual or unique designs. In addition, the use of Library

Drawings provides savings by directly reducing drafting, design and engineering time in

new projects.

Library Drawings are listed under, and archived on, Plant M88 file and governed by

SAEP-305.

1.13 Responsible Engineering Office (REO)

Any Saudi Aramco "office" that has been entrusted with the production or care of an original Engineering Drawing. Usually an individual within a project team, or operating

engineering unit is designated the responsibility of tracking the whereabouts of the

drawing. Non-Saudi Aramco firms or companies are not allowed to be the designated

REO. EDSD is the REO for all drawings residing in the Saudi Aramco Drawing

Management archives under its custody.

Each REO and certain individuals within the REO shall be authorized to track issued

existing Engineering Drawings and Facility Data.

1.14 Standard Drawing

A specially prepared Engineering Drawing that has been pre-approved by Saudi Aramco Executive Management for Mandatory application in the design of Saudi Aramco facilities

when the information they contain applies during design if appropriate.

The production of a Standard Drawing follows the normal production requirements

presented in this manual and the Saudi Aramco CADD Standards. Refer to SAEP-110 for

details related to approvals and control.

1.15 Title Block

That portion of the drawing reserved for listing information related to the production of the drawing.


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Title blocks comprise the following information:

a. Production, approval/certification information and b. Title information c. Drawing type d. Job Number (Job Order or EWO number) e. Plant Number f. Index letter g. Drawing Number: prefix and identifier h. Sheet Number i. Revision Number j. Revision Block

1.16 Vendor Drawing

Any document developed by a manufacturer that supports the technical requirements of

material or equipment and received as part of a purchase order.

SAEP-111 covers the requirements for the developing, handling and submittal of these

drawings.

1.17 Abbreviations Abbreviations and Letter Symbols shall to be used as an integral part of the Drafting

Standards, and shall to be applied to all engineering drawings and documents wherever

physical space prevents from complete spell-out of a word or sentence, especially in

limited space areas, such as title blocks, in small drawings. Abbreviations shall be made

only when absolutely necessary and never used when the meaning will not be clear.

Adherence to the Abbreviations and Letter Symbols must be observed to build-up

consistency amongst the many engineering documents and projects within the Saudi

Aramco Organization.

The list of Abbreviations and Letter Symbols conforms to the Engineering Societies and Industrial Associations listed below.


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American Association of Engineers AAE

American Boiler Manufacturers ABMA

American Bureau of Shipping ABS

American Chemical Society ACS

American Concrete Institute ACI

American Electrochemical Society AES

American Electroplaters Society AES

American Engineering Council AEC

American Foundry men's Association AFA

American Gas Association AGA

American Gear Manufacturers Association

AGM

American Institute of Architects AIA


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2. DRAWING FORMAT & MEDIA

2.1 Sizes

The following table shows the only acceptable sizes for Saudi Aramco Engineering Drawings:

OVERALL DIMENSIONS

SIZE CODE Mm Inches

A 711 x 1016 28 x 40

B 508 x 711 20 x 28

C 356 x 508 14 x 20

D 279 x 432 11 x 17

E 216 x 279 8 x 11

See Standard Drawing AE-036625 for details concerning the spacing

requirements for Notes, Title Block, Drawing Areas and Borders.

2.2 Media

Engineering drawings shall be prepared and submitted in electronic format on the

prescribed engineering forms using Microstation (the latest EDSD issued SACS version),

MS Word or MS Excel as described in SAEP-334 or any other EDSD approved electronic

media.


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3. DRAWING INDEX & TYPE

3.1 Drawing Index

A single letter alpha character represents the discipline of the drawings. Standard drawing AE-036411 sheet 001 lists the approved drawing indices with descriptions.

3.2 Drawing Type

3.2.1 The Drawing Type is a three alphabetical character code located at the far right end of line 1. This code is utilized to identify specific groups of drawings under a

specific INDEX.

3.2.2 Code description may be used to develop line-1 of drawing title. Title is not required to match the exact wording but must indicate the contents of the

drawing. However, the title selected must match the drawing index and drawing

type code, to the extent possible.

For Drawing Type (MS Excel) refer: http://edsd.aramco.com.sa/dm/IndxType.xls


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4. DRAWING NUMBERS & RELATED

4.1 Drawing Number (alpha/numeric)

The Drawing Number provides one part of the "unique" identification code for each

Engineering Drawing. It comprises a single character Prefix Letter, a single character

Sheet Size Code, and a six (6) character Identifying Number.

4.1.1 Typical Drawing Number

Example: DB-765432

4.1.2 Prefix Letter (alpha)

4.1.2.1 The following Prefix Letters are currently being assigned by EDSD for use as part of the drawing number.

A Standard Drawings only.

D Library Drawings only.

B Southern Area (Eastern Arabia).

H Central Area (Eastern Arabia).

R Northern Area (Eastern Arabia).

V (Central and Western Arabia).

4.1.2.2 The following prefix letters appear on some Engineering Drawings but are no longer used on new drawing production. However new

sheets to the existing drawings may be added.


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A Aramco San Francisco or New York, AOC at Rome or London (except for Standard Drawing).

G SOCAL

K SCECO

L Aramco Overseas Company, Beirut.

N AOC, The Hague assigned drawing number.

X ASC, Houston assigned drawing number. D Dhahran assigned drawing numbers (except for Library

Drawings).

4.1.3 Sheet Size Code (alpha)

The Sheet Size Code is a single alpha character used to identify the drawing size.

It does not make up part of the "unique" drawing identification number since this

code can change depending upon the present size of the drawing.

Note: The Sheet Size Code must always agree with the actual size of the drawing form. It can be changed but requires a formal revision and

should be noted in the description column of the block.

Refer to item 3.1 for proper dimensions.

4.1.4 Identifying Number

The Identifying Number is a six (6) character numeric code. All digits from 0 to 9

can be used. All six characters must be continuous with no comma separation. A

dash will be used to separate the identifying number from the prefix letter and

drawing size (e.g. HA-123456).

4.2 Sheet Number

The Sheet Number is a three (3) digit number ranging from 001 to 999. Most Engineering Drawings of the same Drawing Type are grouped in 'sets' of drawings

using the same Drawing Number with multiple sheets. Example: P&ID, ILD, and One Line

Diagrams. When 'sets' are used then the Sheet Number provides part of the "unique"

identifier for the drawing.


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Restrictions governing the use of Sheet Numbers for 'sets' are as follows:

4.2.1 All drawings that form part of a 'set' within the same Drawing Number must have the same size. If a drawing size changes then it must be either cancelled from

the set and given a new Drawing Number or size of all the other sheets be

changed.

4.2.2 Sheet SETS must be made for a common engineering subject, the subject may be: Design, Process or Service within a specific engineering discipline.

Examples:

DESIGN Plot Plans Structural Details Equipment Layouts Hazardous Area Classifications

PROCESS Process Flow Diagrams Piping and Instrument Diagrams Valve Operating Diagrams

SERVICE Piping Isometrics of Same Product (e.g. Air, Steam, Fuel Gas, etc.) Electrical Drawings (e.g. One Line Diagram, Connection Diagram, Elementary Diagram., Electrical Layout etc.) Instrument Points and Lines

4.2.3 All sheets in one set must be numbered sequentially without number gaps for 'Unused' sheets. If gaps are unavoidable, then a face sheet may be utilized to

indicate "spare" in lieu of the unused sheet number.

4.2.4 A set of pre-numbered sheets pertaining to one piece of equipment (e.g. Instrument Specification Sheets or Equipment Data Sheets etc.), shall make up

one drawing set.


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4.2.5 Drawing and sheet numbers for Instrument Loop Diagrams, Instrument Installation Schedules, Cable & Conduit Schedules and Pipe Line Designation

Tables must be requested from EDSD separately, by using the appropriate

request form in each case.

4.2.6 Face Sheets may be provided for all size drawing sets having the same Drawing Numbers and more than ten sheets. They are mandatory for Instrument

Installation Schedules, Instrument Loop Diagrams, Cable & Conduit schedules,

Line Designation Tables and existing drawing sets that contain sheets with

alpha/numeric sheet numbers. The Face Sheet must list all sheets in the set and

their titles. For Instrument Loop Diagrams, it shall also show the loop numbers

for each sheet.

4.2.6.1 The first Face Sheet is numbered FS1. The subsequent Face sheets will be designated as FS2, FS3,...FS9.

4.2.6.2 When required to be revised, Face Sheets shall only have full numeric revision numbers (i.e. 01, 02, etc.).

4.2.7 Numbering sequences containing alpha characters are unacceptable except Face/Index sheet (FS1 to FS9).

4.2.8 Sets developed for Instrument Installation Schedules should be limited to a particular category of instruments within a plant.

4.2.9 The titles of individual sheets within a set may vary slightly, if so required for clarification and definition of location. However, the Drawing Size, Plant

Numbers, Index and Plant Title must be the same on all sheets.

4.2.10

Drawing sets in Bulk documents such as Scopes of Work and other such

documents constituting a coherent set, shall be assigned one Drawing Number

with multiple sheet numbers. Only sheet 001 in the set shall show the total

number of sheets and is listed in DMS for reference as such.


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4.2.11 All sheets in one drawing must be generated using the same drawing media and format. That is, either all CADD (Microstation) or all MS Excel or all MS Word.

4.2.12 New sheets generated as part of an existing drawing must also be on the same drawing media and format.

Note: Existing drawings bearing alpha/numeric sheet identification should be corrected by the REO before the drawing is resubmitted with

revision information. All reference drawings must be similarly

corrected.

4.2.13 Cover sheets or title sheets of a drawing or project should not be assigned Engineering Drawing number.

4.3 Revision Number

4.3.1 The Revision Number is composed of one to three-character (the first two numeric and the third alpha code), used to identify the latest approved revision

on a drawing. The Revision Number is all numeric (two characters) when all

contents of a drawing reflect a total "As-Built" condition, and numerical/alpha

(three characters) when it is a partial modification or a partial "As-Built".

4.3.2 The first certified and approved issue of a new drawing must bear revision '00'. Full names of signatories must appear in the main title block. If required "ISSUED FOR CONSTRUCTION" description may be added in the

bottom line of the revision block as Revision 00. Names of the signatories of

Revision 00 (IFC) are optional in the revision block.

4.3.3 When a drawing is checked out for revision purposes, the EDSD assigns the appropriate revision number to the REO depending on the type of revision

requested. The REO must use the revision number assigned to the existing

drawings for a particular project (Job Order or EWO) for the same. Revision

numbers to the existing drawing shall not be assigned for Budget Item (BI) or

Project Proposals.


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4.3.4 When the REO wants to immediately add another revision for some other project, the current revision must be submitted to the DMS before modifying the

drawing for the other project, and simultaneously, request the drawings for

revision.

4.3.5 Based on the information supplied by the REO when requesting a drawing for revision or design modification using form SA 8134-ENG, EDSD will determine

the level of revision that would satisfy REO's9 requirements, on the following

basis:

For Normal Modification If a new design, design change or partial "As-Built" being applied to an existing

drawing. A numeric/alpha revision number will be issued. For Full "As-Built" If a new or existing drawing being brought to a 100% field verified As-Built

condition, a whole numeric revision number will be issued.

4.3.6 Releasing drawings for revision requires the concurrence of the Operations Engineering for all the existing facilities. The project management and design

groups engineers must acquire the concurrence of the Operations Engineering

before submitting their drawing requests to EDSD.

Note: Grass-roots LSTK project new drawings may be made as-built (Rev. 01) without submitting initial Revision (00) to the EDSD. Main title

block and Revision description for as built revision must be

completed.

4.3.7 If two or more modifications, for different job numbers, are to be made on a drawing due to: As-Built, Design change, etc., each modification must be

individually recorded and archived with a separate revision number for each job.

4.4 Drawing Index Letters

4.4.1 Drawing Index Letters are single alpha characters in the range of A to Z (except I and O).


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4.4.2 Index Letters are shown on Engineering Drawings in the title block. A Maximum of two index letters are acceptable on a drawing, arranged by order of importance

(not necessarily in alphabetic sequence).

4.4.3 Drawings shall be coded by Index letter to properly identify each drawing type. Drawing types shall not be mixed. Each drawing must contain information related

to only one specific index. These letters can only be changed or their content

modified through revision of the Standard Drawings. Standard Drawing AE-

036411 sheet 001 lists the approved Index Letters.

4.5 Plant Numbers

4.5.1 Plant Numbers are three characters in length. The characters may be either numeric or alpha/numeric.

4.5.2 Only one Plant Number should be assigned to an Engineering Drawing. However, more than one plant number may be allowed under certain circumstances.

Example: When the drawing contains interrelated information for more than one plant: continuation of lines, interface points, jumpers, tie-in points etc and all such

plants fall under the responsibility of the same operating organization. Drawings requiring more than one Plant Number must be approved by the Chief

Draftsman, EDSD.

4.5.3 When an Engineering Drawing is 'typical' for more than one plant, then separate drawing must be produced for each plant.

4.5.4 The issue and control of Saudi Aramco Plant Numbers is the responsibility of the Chief Draftsman. Complete listing of currently assigned plant numbers with

descriptions is available on the Engineering Standards home page

(http://engsvcs.aramco.com.sa/engstds/). Desktop Standards under Tab: Other

information and EDSD home page (http://edsd.aramco.com.sa/).


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4.5.5 To apply for a new Plant Number, a request letter from the Division Head or above of the Operations Engineering organization, must be submitted to the Chief

Draftsman stating the following information:

a. Name of Requesting Operations Organization b. Organization Code, Mailing Address, Phone Number c. Requester's Contact Representative d. Approved BI & JO Numbers e. New Facility Name f. Increment Information (if available) g. Facility Location (include a Site Plant and indicate the nearest existing

Plant) h. Brief Description of the New Facility.

Note: If a PMT is initiating the request, then the operation engineering proponent (Division Head or above) concurrence is required

4.5.6 Any change to the description (title) or status of a plant (abandoned, dismantled, mothballed, renamed, etc.) must be reported to the Chief Draftsman by the

responsible Operating Engineering organizations.

4.5.7 To change the responsibility of a plant to another organization, concurrence of present proponent is required.

4.6 Job Order / EWO Numbers

4.6.1 The Job Number (J.O. or EWO) shall be shown on Engineering Drawings in the box at the left of the title block. For capital project work, the use of this number is

mandatory. For operation and maintenance work, the number is optional.

4.6.2 The initial Job Number for Revision 00 should remain on drawings indefinitely.


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4.7 Requesting Drawing Numbers

4.7.1 EDSD is responsible for assignment and control of all Engineering Drawing Numbers to projects. Operation Engineering organizations having access to

Drawing Management System shall obtain the drawing numbers from DMS.

4.7.2 A REO who requires Engineering Drawing Numbers from EDSD must complete Saudi Aramco Form SA 8132- ENG (Engineering Drawing Numbers Request).

4.7.3 Engineering Drawing numbers should not be used on project proposal drawings.

4.7.4 REO must inform EDSD of all unused drawing numbers. Numbers retained by REO after completion of a project would be counted as drawings generated and

kept by the REO. The REO Management is required to submit these drawings to

EDSD.

4.7.5 Drawing numbers issued shall not be used for Instrument Loop Diagrams (ILD), Instrument Installation Schedules (IIS), Cable & Conduit Schedules (CCS) and

Line Designation Table (LTD) drawings. For these type of drawing, refer to Item:

6.3, 6.5, 6.6.


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5. DRAWING TITLES

5.0 ENGINEERING DRAWING TITLES

Drawing titles are a very important aspect of drawing identification. Proper care should be

taken to ensure that adequate titles are assigned to each drawing prepared. The title is

written on four (4) lines in the standard Title Block.

5.1 Line 1, Content of the Drawing

The general content of the drawing and the Drawing Type shall be entered on

the first line. Use the appropriate approved descriptions as listed in the

reference tables (attached with Item: 3.0). Loop number and line number shall

be entered on first line for ILD and isometric piping details. Similarly equipment

or instrument tag number shall be mentioned on Safety Instruction Sheet

(SIS), Data or specification sheets.

5.2 Line 2, Subject or Service

The main subject being covered by the drawing must be written here. This

could be a process system, substation, service line, equipment number,

building number, circuit or loop, etc. Use as many words as necessary to

clearly explain the subject matter. Drawings concerning electrical substations

shall have the substation number listed.

5.3 Line 3, Plant Name

The name of the plant corresponding with the Plant Number is written on this

line. Use only the approved listing of plant names shown in the plant listing. If

two or more plants are covered, then only the major plant covered by the

drawing should be on line 3.

5.4 Line 4, Geographical Location

The name of the main Saudi Aramco geographical area where the facility is

located must appear on this line. The geographical locations are shown by

each plant in the plant list. Any exception to this list must be approved by the

Chief Draftsman. Abbreviations are not allowed on line 4.


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6. OTHER NUMBERS

6.1 General

6.1.1 All Saudi Aramco mechanical equipment, electrical equipment, process control instruments, industrial buildings, cable & conduit and process pipelines must be

assigned identification/tag numbers.

6.1.2 The assignment and control of all identification/tag numbers shall be the responsibility of the Engineering Drawing Services Division.

6.1.3 Identification/tag numbers shall be assigned and managed by order of numerical sequence within each category or type within a designated plant.

6.1.4 EDSD shall issue the identification or tag numbers only upon receiving a request from an authorized representative of a PMT or Proponent using the

appropriate request forms.

6.1.5 Prior to requesting any identification/tag numbers, the requestor must quantify the total numbers of each category required for the project. New grass-root

projects shall not be excluded from this requirement.

6.1.6 Unused numbers shall not be recorded as spare. All unused numbers must be returned, in writing, to EDSD.

6.1.7 All identification/tag numbers must be indicated on their respective drawings where applicable.

6.2 Building Numbers

6.2.1 EDSD assigns the numbers to the Industrial Buildings located outside the boundaries of process plants. Building numbers within process plant boundaries

are assigned by the Plant Management. Residential Building numbers are

assigned by the respective Community Services organizations.


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6.2.2 To request Industrial Building Numbers, the REO must forward a completed form SA 9602-ENG to EDSD stating basic information about the facility: name

of the building, location, size, associated BI. Each request must be

accompanied by properly prepared Engineering Drawings of the building,

including site plans, and floor plans.

6.2.3 EDSD maintains a listing of Industrial Building Numbers. Network access is through the EDSD home page (http://edsd.aramco.com.sa) on the Saudi

Aramco Intranet.

6.3 Cable and Conduit Numbers (alpha/numeric)

For the purpose of identification, all cables and conduits excluding single and

interconnecting wiring are assigned special codes. Each code is 4 to 6 characters in

length, excluding dashes, and each is unique for a given line. Refer to Saudi Aramco

Engineering Standard SAES-P-104 for complete instructions related to cables and

conduits.

6.3.1 Typical Cable & Conduit Numbers

Example #1: C-736 Example #2: PC-1281

6.3.2 The Letter Designations are 1 to 2 alpha characters signifying the type of service.

C Conduit

CC Control Cable

PC Power Cable

IC Instrument Cable


Page 26 of 87

6.3.3 The Sequence Number is 4 digits long and is a strict numerical sequence starting from 0001, for each particular plant regardless of the size, type or

service.

6.3.4 Cable & Conduit Schedule drawing and sheet numbers are also assigned by EDSD at the time of processing cable & Conduit number requests. EDSD

furnish the electronic files in MS Excel of these schedules. These schedules

must be completed and submitted similar to other project drawings.

6.3.5 Use form SA 9175-ENG to request Cable & Conduit numbers.

6.4 Equipment Tag Numbers

Equipment Tag Numbers are assigned to mechanical and electrical equipment as well as

their associated items as listed on standard drawing AE-036411 Sheet 002 and 003. In

case a piece of equipment is transferred to another plant or substation, a new tag number

is required.

6.4.1 Mechanical Equipment

6.4.1.1 Each mechanical equipment tag number is unique for a specific piece of equipment or an associated item and consists of 8 to 10 characters

in length, excluding dashes as follows:

Example #1: D31-G-0012 (8 characters) Example #2: D31-GM-0012A (10 characters)

6.4.1.2 Mechanical Equipment Tag numbers shall include the Plant Number, equipment marking and numerical sequence numbers.


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6.4.1.3 Auxiliary or secondary equipment shall have the same sequence number as the primary equipment, i.e. for Pump G-0012, Motor GM-

0012, Gear GG-0012. Equipment markings are listed on the Standard

drawing AE-036411 sheet 002. Use form SA 9133-ENG to request

Mechanical Equipment tag numbers.

6.4.1.4 The Suffix Letter is used only to distinguish when 2 pieces of identical equipment, like in the case of two pumps for one tank, i.e. G-0012A

and G-0012B.

6.4.2 Electrical Equipment

6.4.2.1 Each electrical equipment tag number is unique for a specific piece of equipment and consists of 11 to 13 characters in length, excluding

dashes and parenthesis.

6.4.2.2

Example #1: D31 - 012 - GSW (K) - 502 (13 characters) Grounding Switch # 02 from substation #12 for 69 KV voltage and

PDD code K in plant number D31. Example #2: D31 - 012 - BC - 301 (11 characters) Battery Charger # 01 has 13.8 KV voltage from substation #12. No

PDD code.

6.4.2.3 The tag numbers are controlled in numeric sequence for each voltage code per each equipment type (marking) per each power source

(normally Substation) in each plant. Use form SA 9133A-ENG to

request Electrical Equipment tag numbers.


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6.4.2.4 PDD codes are required only when they are different from the Standard Electrical Equipment Markings available in Standard

drawing AE-036411 sheet 003.

6.4.2.5 PDD CODES

Description Standard Marking

PDD CODE

Circuit Switcher CSW S

Circuit Breaker (Power) CB A

Circuit Breaker (Switchgear

Distribution) CB B

Disconnecting Switch DSW D

Fuse FS F

Fuse Disconnect FSD J

Grounding Switch GSW K

Grounding Resistor GR Y

Grounding Transformer GT X

Relay RY P

Switch SW E

Transformer XFR T

6.4.2.6 VOLTAGE CODES

0 600 V & below AC or DC

1 2.4 KV

2 4.16 KV

3 13.8 KV

4 34.5 KV

5 69 KV

6 115 KV

7 230 KV

8 380 KV


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6.5 Instrument Tag Numbers

Each item of instrumentation shall be assigned a specific "tag number". Refer to Saudi

Aramco Engineering Standard SAES-J-004 for complete details related to Instrument

Identification Codes. Use form SA 9178-ENG to request Instrument tag numbers.

6.5.1 Typical Instrument Tag Number

Example #1: PCV-0159 (7 characters) Example #2: LT-0054 (6 characters) Example #3: FrC-1010A (8 characters-rare)

6.5.2 Each instrument tag/loop number is unique for specific category of instruments listed in SAES-J-005 item 6.1.2.

6.5.3 In a given measurement or control loop, all instruments are assigned the same Identification Numbers. To distinguish 2 similar instruments in the same loop an

alpha character will be added at the end of the Identification Number.

6.5.4 Instrument tag numbers are assigned in sequence starting with 0001. Installation schedule drawing and sheet numbers are also assigned by EDSD at

the time of assignment of these tag numbers. EDSD furnished the electronic

files of these schedules in MS Excel format.

6.5.5 EDSD maintains control of Instrument Loop Diagram drawing and sheet numbers assignment. One drawing number with multiple sheets is assigned in

each specific plant. Use form SA 9176-ENG to request Instrument Loop

Diagram drawing and sheet numbers.


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6.6 Pipeline (Line) Numbers (alpha/numeric)

Pipeline Numbers are assigned to all welded or flanged above ground or under ground

pipelines within a plant regardless of their sizes, type of material or service. Each is unique

in a plant. Use form SA 9179-ENG to request Line numbers.

6.6.1 Typical Pipeline (Line) Number

Example: 2-1/2"-CWS-1234-1A1B

6.6.2 The Line Size is indicated by up to five digits followed by the inch symbol. All nominal line sizes are expressed in inches even on metric drawings.

6.6.3 Piping with threaded connections and plumbing do not require line numbers assigned unless seen necessary by the PMT or Proponent for operating or

maintenance reasons.

6.6.4 Pipeline numbers shall be assigned in numerical sequence starting from 0001, for particular plant regardless of the line size, material or service. Line

Designation table drawing and sheet numbers are also assigned by EDSD at

the time of processing the Line Number requests. EDSD furnishes the electronic

files of these Line Designation Table schedules in MS Excel format.

6.6.5 Pipeline numbers must include line designation as outlined per Line Class Designator System, Item 7 of SAES-L-005 and Standard Drawing AD-036204.


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6.7 Dummy Increment Numbers

A four character alpha-numeric (one alpha and three numeric) number to be used as

increment number of a non-procurement purchase/requisition order is called Dummy

Increment Number. It is required for items/material that are not purchased by normal Saudi

Aramco Purchase Order System. EDSD control and assign the dummy increment number in all Saudi Aramco plants. Use Saudi Aramco form SA 9603-ENG to request the number from EDSD.


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7. HANDLING OF DRAWINGS

7.0 Handling Engineering Drawings

Each drawing must be prepared and reviewed in accordance with the Saudi Aramco CADD

Standards, relevant Saudi Aramco Engineering Procedures and the Drafting Manual.

7.1 Responsible Engineering Office (REO) Requirements

7.1.1 Any Saudi Aramco engineering office or Project Management Team (PMT) that has been issued an engineering drawing number will assume the role as the initial

REO. This REO will be held accountable for the proper production and control of

the drawings until which time it relinquishes that control by formally submitting the

drawings to EDSD.

7.1.2 The REO is responsible for ensuring that the Engineering Drawing is produced, controlled, certified and submitted in accordance with this manual and all other

related Saudi Aramco Standards and Procedures.

7.1.3 The initial REO will be responsible for notifying EDSD when an assigned drawing number does not result in an Engineering Drawing (for unused number of voided

drawings).

7.1.4 The REO is responsible for submitting all Engineering Drawings in their custody to EDSD immediately after approval and certification. Refer to SAEP-334.

7.1.5 Engineering Drawings shall be updated to "as-built' condition when required. The REO responsible for the drawing during the construction phase of the facility is

the responsible party for ensuring that the drawing reflects the as-built condition.

7.1.6 Existing Engineering Drawings may be used for project proposal purposes by utilizing electronic copies of these drawings and after removing any information

related to the original drawing.


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7.1.7 Engineering Drawings developed for project proposal purposes shall not be assigned Engineering Drawing Numbers, neither shall they be archived in the

Drawing Management System. The Project Management Teams shall develop

their own temporary numbers throughout the project proposal stage. Engineering

Drawings Numbers shall replace these numbers at the time of the detailed

design.

7.1.8 The Project Management Teams shall assign their own dummy tag number (equipments, instruments, Cable & Conduit and Line numbers) for project

proposal efforts and those must be replaced with the properly assigned tag

numbers in detailed design.

7.1.9 Drawing Control Sheet must be prepared for each Job Order or EWO. All engineering drawings (Revised and new) of the project must be listed in this

Drawing Control Sheet. Use the assigned Drawing Number for Drawing Control Sheet. (Refer to form

8132-ENG)


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8. REQUESTING DRAWINGS

8.1 Drawing Access for Revisions

Project/Design Managers or the Operation Engineering Division Heads shall be the principal

person responsible for all drawings, drawing numbers and other transactions requested

from EDSD by him or his authorized engineers as Project Rep.

8.1.1 Project Management (PMT)

8.1.1.1 Each transaction shall be under a specific Job Number (J.O.)

8.1.1.2 The Saudi Aramco Project Manager may delegate, the responsibility of signing the Drawing Request form (SA-8134) to some of his engineers

working for him under a specific project.

8.1.1.3 Only a Saudi Aramco Engineer or Business Manager can request drawings on behalf of the Saudi Aramco Project Manager.

8.1.1.4 Non-Saudi Aramco individual (e.g. Contractor personnel) may be delegated by the Saudi Aramco Project Manager, the responsibility for

receiving the drawings from EDSD (Refer to SAEP-128).

8.1.1.5 The Saudi Aramco Project Manager shall be responsible for overseeing that the drawings are protected per instructions of SAEP-127 and

SAEP-128.

8.1.1.6 Any Project Rep may be delegated the responsibility for requesting drawings for more than one project as long as these projects are under

the responsibility of his/her Division.

8.1.1.7 In the event that a Project Rep is no longer charged with requesting drawings or if he/she no longer works for an assigned project, then the

Project Manager shall be responsible for informing EDSD, in writing, as

such.


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8.1.2 Design Services Groups (IDO)

8.1.2.1 Each transaction shall be under a specific Engineering Work Order (EWO).

8.1.2.2 The Design Manager may delegate, in writing to EDSD, the responsibility of signing the Drawing Request form (SA-8134-ENG) to

his authorized engineers.

8.1.2.3 The Design Manager shall be responsible for overseeing that the drawings are protected per instructions of SAEP-127 (and SAEP-128 if

GES Contractors are hired to do a job).

8.1.2.4 Only a Saudi Aramco Engineer can request drawings on behalf of the Design Manager.

8.1.2.5 Other Saudi Aramco individual (e.g. Draftsman, Drawing Control Clerk, etc.) may be delegated by the Design Manager, the responsibility for

receiving the drawings from EDSD.

8.1.2.6 Any Project Rep may be delegated the responsibility for requesting drawings for more than one project as long as these projects are under

the responsibility of his/her Division.

8.1.2.7 In the event that a Project Rep is no longer charged with requesting drawings or if he/she no longer works for an assigned project, then the

Design Manager shall be responsible for informing EDSD, in writing, as

such.


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8.1.3 General

Existing Engineering Drawings must be revised.

8.1.3.1 Requesting Engineering Drawings for revision purposes shall be limited to only those who have been granted an authorization to draw such

drawings by request of their management via an approved

Engineering Data Transaction Authorization request form SA-9599-

ENG

8.1.3.2 When determined that an Engineering Drawing requires a modification under an identified job number, it must officially be requested from

EDSD using SA-8134-ENG form.

8.1.3.3 Any Engineering Drawing being requested for revision by anyone other than its Proponent must require concurrence of that Proponent through

signing of the SA-8134-ENG form.

8.1.3.4 Proponent may issue a blanket authorization to a particular user for a specified BI, JO or EWO. Signatory of a blanket authorization should be

the Division Head or above of proponent Engineering Organization

responsible of maintaining and updating their drawings.

For sample of letter refer http://edsd.aramco.com.sa/dm/Waiver 8134.doc

8.1.3.5 Engineering Drawings may be requested for revision purposes interactively via the Drawing Management System (DMS) where a DMS

access is granted for that purpose.

8.1.3.6 Only one revision number shall be issued at one time for each revision under one job (J.O. or EWO). The revision for the same job shall be

issued upon submittal of the previously issued revision for that job into

the Drawing Management System (DMS). Each revision level must be

individually recorded into the Drawing Management System.


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Exception: A separate design revision may be assigned for Demolition purpose in addition to regular Design or As

Built revision.

8.1.3.7 Revision number (numeric or alphanumeric) which has been issued by EDSD or processed through the DMS using form SA-8134-ENG or

process for a particular job shall not be used for any other job to identify

a modification on an Engineering Drawing.

8.1.3.8 In case it is determined that for some reason, a drawing does not need to be revised after a revision number has been issued, then that

revision number must immediately be cancelled by the requestor

through formal correspondence with EDSD along with a copy of SA-

8134 form.


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9. PREPARING & REVISING DRAWINGS

9.0 Preparing & Revising Drawings

9.0.1 Engineering Drawings shall be prepared and revised in accordance with all applicable Saudi Aramco standards, procedures and practices as well as those

applicable international standards and practices approved by Saudi Aramco.

9.0.2 Engineering Drawings must be prepared and revised using the latest version of Saudi Aramco CADD Standards (SACS) or others as approved by the

Engineering Drawings Services Division (EDSD) only.

9.0.3 Engineering drawings must be revised electronically on prescribed Saudi Aramco engineering forms, as provided by the EDSD, using Microstation dgn,

MS Excel or MS Word formats only as defined in SAEP-334.

9.0.4 When some certain standards are not available in SACS, the Chief Draftsman, EDSD must be consulted to obtain approval prior to using any non-Saudi

Aramco Drafting standard.

9.0.5 Engineering drawings common to multiple plants, or identical portion within a plant, must be prepared separately for each installation. Existing drawings must

be segregated at the time of revision.

9.0.6 The final submittal of Engineering Drawings revised using PDS 3D or any other software must be produced using 2D and made compliant to standards and

procedures set forth in Saudi Aramco CADD Standards, related Saudi Aramco

Procedures and this manual prior to submitting them for inclusion into DMS.

9.0.7 Existing drawings must be utilized for any modification of a facility. Creation of new drawings to indicate a change in an existing facility will not be accepted. If,

however, this is not avoidable for some reason such as crowdedness or major

revision changes, then the new drawing must bear the same drawing number of

the existing drawing.


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9.0.8 New drawings that are created as continuation of an existing design are considered as continuation drawings of that design bearing the next sequential

(numeric) sheet number of that drawing set.

9.0.9 When revising an existing drawing, the incorrect Plant name shall be corrected or completed.

9.0.10 Each revision must have description in the revision title block area summarizing the modifications that took place under a specific job number.

9.0.11 Do not show any shading or diamonds in the revision column.

9.0.12 Revision diamonds shall be placed on the drawing in such a way as to make it possible to locate revision areas quickly. Old revision diamonds and related

notes must be removed from the drawings, except the diamonds and related

notes showing the latest revision numbers in the revision column.

9.0.13 If a drawing is completely redrawn then all revision diamonds are removed from the drawing and the words "completely redrawn and incorporated Revisions

(indicate the revision number incorporated)" are put in the revision column on

the first line.

9.0.14 When revising drawings having multiple sheets, only those sheets affected by the revision change are to be requested from EDSD. Exception is made to

drawings that has only one electronic file i.e. Scope of work, etc. (see item:

4.2.10).

9.0.15 When revising some pages of bulk drawings that has single electronic file of the complete set, the revision column of only first sheet shall indicate the changes

and revision number change. Complete set shall be submitted.

9.0.16 Full numeric revision numbers (i.e. 1,2,3,...) are assigned to full 100% as built only and are issued to, or by concurrence of, the proponent Operations

Engineering. All contents of the drawing shall be verified.


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9.0.17 When a drawing is revised as CANCELLED or if a CANCELLED drawing is being reactivated, then a whole numeric revision number shall be assigned to

that revision. User must indicate his intension on the SA-8134 form.

9.0.18 The standard north arrow symbol shall be drawn in a prominent place in the upper region of the drawing for all plan view drawings. It must be drawn pointing

upward, or if unavoidable, pointing left, but shall never point down.

9.0.19 Information covered by Standard Drawings, elaborated details, unnecessary views, and repetitions, which add no value to the drawings, shall be omitted.

9.0.20 The old concept of drafting which permitted artistic drawings with projected views is no longer acceptable. Simplified Drafting (http://edsd.aramco.com.sa/ dm/Attach/S_DRAF/S_DRAF.max) must be applied to reduce time and size of

electronic files; consequently, all non-essentials from design which add nothing

to the accuracy, completeness and clarity shall be eliminated.

9.0.21 Reference drawings and notes shall be placed in the area provided above the title block. Reference drawings listed shall be the necessary minimum

engineering drawings only. Do not include Plant or Index reference of the

referred drawings nor Standard Drawings.

9.0.22 The American Projection method shall be followed when designating views. Sections, elevations and other view shall be identified by letter designations

(e.g. A-A, B-B, etc. The letter I and O are not to be used). Details shall be

identified by numbers only (e.g. DETAIL-1, DETAIL-2, etc.). When the 24

authorized letter have been used, begin again with double letter thus AA-AA.

9.0.23 Drawing shading is not allowed on drawings. Crosshatching may be used as an alternative to shading.


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9.0.24 Revisions on drawings may be encircled or clouded on the prescribed layer for easy identification of the revised portion. Prior to submitting the drawings after

certification and approval, revision encirclement or clouding must be either

removed or the layer turned off.

9.0.25 The letter O and I shall not be used for identification symbols on the drawings, as they are often confused with Zero and One. Exceptions are

instrument symbols as shown in SAES-J-004.

9.0.26 Font on drawings shall all be uppercase.

9.0.27 Review required/not required box in the title block shall be marked to indicate the review of key drawings.

9.0.28 Representation of piping on all 3/8 or smaller scale drawings and metric equivalent scale, shall be a single-line up to 12 nominal pipe size and double

line from 14 and above.

9.0.29 Abbreviations for Drawing Titles shall be made only when absolutely necessary and shall never be used when the meaning will not be clear.

9.0.30 Saudi Aramco Engineering Procedure SAEP-103 describes the permissible metric scales and usage of the metric system applicable to dimensioning of

drawings.

9.0.31 Existing engineering Drawings may be used for Project proposal purposes by utilizing electronic copies of these drawings and removing all the information

(e.g. Plant Number. Drawing Number, etc.) related to the original drawing.

Project proposal drawings shall not be assigned engineering drawing numbers.

9.0.32 Engineering drawings shall not be developed for any purpose in lieu of Standard Drawings and neither they shall be copied from Standard Drawings under any

circumstances without the written consent by the chairman of that Standard

Drawing committee.


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9.0.33 Library drawings shall be utilized at maximum as means for cost saving as well as uniformity in similar designs. For details on Library Drawings refer to SAEP-

305.

9.1 Graphic Scales

A line scale reference shall be included on both new and existing drawing just over the title

block. The line scale shall be divided into units of length as determined by the scale of the

drawing.

Examples:

9.2 Canceling Drawings

9.2.1 Engineering Drawings must be cancelled under the circumstances identified below. These circumstances should also be described in the drawing revision

blocks as the reasons for canceling the drawings.

a. A facility, plant, installation, or a piece of equipment has been abandoned, removed, dismantled or transferred outside Saudi Aramco

control. b. The drawing has been superseded by another drawing.

9.2.2 Drawings being cancelled follow the same procedures and levels of certification and approval of the revised drawings.


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a. Revision numbers must always be full numeric. b. Operations engineering approvals are required for ALL cancelled

drawings

9.2.3 An engineering drawing MUST NOT be cancelled when:

a. Completely redrawn. In this case, a higher revision will be applied to the same drawing number.

b. Only part of the drawing is void. c. It is related to more than one plant or facility. In this case the

Operations Engineering of all the facilities involved must be consulted.

9.3 Preparing Demolition Drawings

When preparing Demolition Design Drawings, the following steps must be taken:

9.3.1 Obtain, from ESSD/Drawing Management Unit, an electronic file of the existing drawing(s) to be used for demolition by submitting SA-8134 ENG.

9.3.2 Indicate in the form SA-8134 ENG that electronic file is required for 'Demolition' purpose.

9.3.3 EDSD shall assign a design revision for this purpose.

9.3.4 Cloud and crosshatch the areas to be removed.

9.3.5 Describe in the revision block against the issued revision.

9.3.6 Submit the drawing to EDSD along with other drawings of the project. Note: For further design, obtain a new revision per procedure.


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9.4 Designating Emergency Drawings

Saudi Aramco Plant Managers are responsible for designating and constantly reviewing

Engineering Drawings related to their plants and/or area of operation as Emergency

Drawings. Ensuring that all drawings are properly stamped for quick identification. Only

those drawings deemed necessary to support operations during a disaster situation should

be designated as EMERGENCY DRAWINGS.

9.5 As-Built Drawing

Any approved and certified "key" drawing and any other drawing designated by the

Operations Engineering and/or the Project Management Team, must be updated to reflect

the 'as-built' condition. In addition Pile Driving records, Foundations, and drawings with

significant changes must be updated to as-built condition. Additions or changes to a

drawing resulting from facility modification must also be verified as 'As-Built' and

referenced to the secondary job order/EWO.

9.5.1 "As-Built"

When a drawing is certified as 100% as-built with no change.

9.5.2 "Revised As-Built"

When a drawing is modified to be brought to a 100% as-built condition.

9.5.3 All as-built' efforts are processed in the same manner as normal drawing revisions.

9.5.4 The engineering organization for the plant or facility is the responsible for overseeing that the "KEY" drawings are kept current and all modifications (as

built) are gathered and incorporated into one engineering drawing to achieve a

"full revision". The full revision must then bear the next sequential revision

designation (issued through DMS), and then, submit to EDSD for archival per

SAEP-334.


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9.5.5 Revisions to non-certified drawings are considered developmental. Once it is determined that the drawing will be issued for construction, REO must be sure

that developmental revision alpha characters (i.e. A, B, C, D, etc) are erased

from the drawing revision block prior to approval and submittal to EDSD.

9.5.6 The drawings can be issued for construction with holds (clouded areas). All IFC drawings must be certified.


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10. CERTIFYING & SUBMITTING DRAWINGS

All engineering drawings developed and/or revised by Saudi Aramco organizations, or by

others for Saudi Aramco by means of approved electronic software and formats must be

certified, reviewed and submitted per SAEP-334


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11. CADD STANDARDS

11.1 GENERAL CADD STANDARDS

Saudi Aramco has developed its CADD standards to provide total design control through

the graphics terminal. These standards utilize Micro-Station's level structure design. All

Saudi Aramco CADD engineering design files have other files associated with them. These

include a cell library, color table, and reference file (form or border). The design files use

logical names to point to these associated files (one of the reasons why you must use

Saudi Aramco seed files) and follow the Saudi Aramco CADD standards (working units,

grid display and locks).

11.1.1

File Naming Convention

A Saudi Aramco drawing is identified by a three part name; the drawing number, sheet

number and revision number. See Saudi Aramco Drafting Manual for a description of these

parts. All CADD files are identified by a two part identity; the file name and file extension. The Saudi Aramco drawing number is in the format of AA-NNNNNN where "A" corresponds

to an alphabetic character and "N" corresponds to numeric character. The file name will be

exactly the same except that the "-" is dropped. The sheet number corresponds directly to the file extension but must be right justified and

packed with zeroes to create a three character sheet number.

11.1.1.1 VECTOR FILES

Vector file is identified by a two part identity which corresponds with the drawing number as the file name and the file extension as the sheet number.

The file name takes the following format.

11.1.1.2 RASTER FILES

Raster File is identified by two parts identity which corresponds with the

drawing number as the file name, and the file extension as the sheet number.

Due to the limitation on number of characters available for PC DOS file name,


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the second alpha character in the drawing number is dropped. This alpha

represents the size of the drawing which can be determined from the

associated vector file or hard copy print of the drawing. Another character in

the filename as 't' for tg4, tif or 'c' for cit is used to identify the raster format

type.

11.1.1.3 DMS DELIVERED FILES

Files extracted from the Saudi Aramco Drawing Management System (DMS)

are delivered with eight (8) character numeric number and extension as dgn for

Vector files and tg4 , cit or tif for Raster files as file name. The DMS generates

a reference report to identify the corresponding drawing number for each file

name.

11.1.2 Working Units

All CADD drawings must be in metric. The following CADD Working Units must be used for

all products unless otherwise stated.

1 METER 100 CM 1000 PU 42,949 X 42,949 SQ METERS WORKING AREA GU = : .1 UR = : .05 GR = 10

11.1.2.1 Definition

Working units are a means of relating the system's internal measurement of

units of resolution (UORs) to measurable working units (meters, centimeters,

etc) to meet the needs of the design file. Working units are the coordinate

units corresponding to the position and definition of a point in the design file.

The working unit dictates the degree of accuracy for placement of elements in

a drawing and determines the scale relationship of elements in the design file.


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11.1.2.2 Format

Working units, usually referred to as MU:SU:PU, take the following format:

MU Master unit of measurement

SU Subunit, a division of a master unit

PU Positional unit, representing the smallest degree of accuracy that

is possible in your design.

The system's UORs has a working area of 4,294,967,296 units of resolution in

both X & Y direction with working units of 1MU:1SU:1PU. To take advantage

of this large area and have detailed high resolution, 1000 PU is used as the

smallest unit of resolution. Since meters have been chosen as the Master

units and centimeters is a division of meters, 100 cm is used as the subunits.

This gives working units of 1M:100CM:1000PU and a working area of 42,949

X 42,949 meters

11.1.2.3 Grid Arrangement

A grid display can be assigned to these working units to be used as a design

aid. This grid display functions much like grid paper does in manual design. A

grid unit is the value for the distance between the grid dots on the screen. The

value of GU=: .1 relates to 1 mm. Hence, dot to dot relates to one millimeter.

The value of the Grid Reference is a quantity of grid dots. How many grid dots

between grid cross. The value of GR=10 gives 10 dots per cross. Hence,

cross to cross relates to one centimeter. A unit round-off value is applied to

the unit lock. It specifies points in the design plane that can be located when

the unit lock is active. The unit lock forces data points to the nearest unit

round-off point. A value of UR=: .05 allows points to lie one-half the distance

between the grid marks.

These CADD Unit configurations were chosen for the following reasons:

a) They are recommended CADD INDUSTRIAL ENGINEERING

PROCEDURES


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b) Grid display is a one to one ratio; dot-to-dot is one MM cross-to-cross is one CM.

c) Key-ins are in simplest form. M:CM.MM

d) All types of pen plotters will be able to plot in detailed high

resolution. Circles will be plotted as circles and not line segments.

11.1.3 Product Seed Files

The Saudi Aramco product seed files have been set up to maximize CADD productivity.

These files contain the title block information using title block program in SACS 2.5.1, have

the required displays, working units, view orientation, and locks. Each product seed file

has the product's cell library, color table, and form (border) already attached. The product

seed files use the following save view names (VI=) for easy design file display.

TB Title block area. This is the lower right hand portion of a drawing.

TD Top left data fields.

*** The entire drawing area with enter data field display set to on, where *** is the

three letter product code.

ALL The entire drawing area, but with enter data fields display set to off.

11.1.4 Saudi Aramco Forms (Borders)

EDSD have made and will continue to make updates to forms (borders) of Saudi Aramco

engineering drawings. Old borders are not available on SACS 2.5.1, thus, updating of "old"

CADD drawings are required. SACS 2.5.1 uses an automate text elements in the title block.

The old borders do not match the text element location on the title block program. In order

to provide this requirement and maintain borders as reference files, unique names will be

used for updated Saudi Aramco CADD borders. see SACS FORMS, SEED FILES AND

BORDERS TABLE (http://edsd.aramco.com.sa/dm/Attach/11.1/CADD_111S.html)

The following naming scheme will be used for reference files:


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***SRR.BOR border (reference file) name

where *** is the three letter product code

S is the size o f the drawing

RR is the CADD revision of the border

11.1.5 Level Structures (LV)

The design area of a CADD design file is composed of 63 identically sized, overlayed

planes. These overlays or levels are used in the Saudi Aramco standards to separate

equipment, types of lines and other drawing details to enable CADD to be a more

productive tool. A level structure table is given for each product Attachment "A"

(http://edsd.aramco.com.sa/dm/Attach/11.1/CADD_111A.html) within the product

standards).

11.1.6 Color Codes (CO)

Saudi Aramco CADD standards use a special color table (SACOLOR.TBL) and not the

default color table provided by MicroStation. In order to specify an active color code, the

CO = N, where 'N' is the color code number, must be used.

11.1.7 Line Weight (WT)

MicroStation provides various weight thickness for lines. Attachment 'B' (http://edsd.aramco.com.sa/dm/Attach/11.1/CADD_111B.max) provides the required line thickness for hard copy plots of Saudi Aramco CADD drawings. Special pen tables

may be required to achieve these requirements. The approximate thickness of these

weights as plotted on a 400 DPI plotter as follows:


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Weight Thickness (mm)

0 0.06

1 0.03

2 0.25

3 0.38

4 0.45

5 0.51

6 0.57

7 0.70

8 0.76

9 0.89

10 1.02

11.1.8 Line Codes (LC)

MicroStation provides eight linear patterns called line codes (See Attachment 'C')

(http://edsd.aramco.com.sa/dm/Attach/11.1/CADD_111C.max). These line codes have been used in the Saudi Aramco CADD Standards. However, some of the patterns

required for the Saudi Aramco CADD Standards are not provided by these line codes

11.1.8.1 Electrical Lines:

This is a solid line with two parallel 45 slash marks ("//") every 20 mm. The

length of the line to the first slash mark is 19 mm. The distance between the

slashes is 1 mm and the length of each slash is 2.828 mm. If the distance of

the required line is less than 40 mm, then a single set of parallel slashes is

placed in the center of the line.


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11.1.8.2 Capillary Tube:

This is a solid line with two 45 crossing slash marks ("X") every 19 mm. The

length of each slash is 2.828 mm. If the distance of the required line is less

than 40 mm, then a single set of crossing slashes is placed in the center of the

line.

11.1.8.3 Match Lines:

This is a combination of a long solid line followed by two short solid lines and

then another long line. The length of the long line is 38 mm. Each short line

has a length of 3 mm. All gaps between the line are also 3 mm. If the distance

of the required line is less than 100 mm, then a single set of two short lines is

placed in the center of the line.

11.1.8.4 Computer Link:

This is a combination of solid lines and circles. The length of each line is 3

mm. The gap between the line and circle is 1 mm. The diameter of the circle

is 1 mm. If the distance of the required line is less than 10 mm, then only a

solid line should be drawn.

11.1.8.5 Computer Cable:

This is a combination of long and short solid lines. The length of the long line

is 3 mm. The gap between the long line and short line is 1 mm. The length of

the shorter line is 1 mm. If the distance of the required line is less than 10 mm,

then only a solid line should be drawn.

11.1.8.6 VOD LINES:

All VOD lines are composed of line segments and text. Attachment "D" (http://edsd.aramco.com.sa/dm/Attach/11.1/CADD_111D.max) shows actual size plot of all those lines.

11.1.9 Fonts

All Saudi Aramco CADD engineering drawing must use FT=61 as the font style when

placing text within the design file. Stacked fractions are provided in this font library


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(FONT61.CEL) for numbers less than a whole number (ex: 21/16 == 1 5/16). The fractions

provided are for halves, quarters, eighths, sixteenths, thirty-seconds and sixty-fourths (i.e.

1/2, 1/4, 3/4, 1/8, 3/8,....,59/64). The Intergraph system does not provide stacked fractions

for thirds, so two of the above fractions have been renamed to provide this data. To get

thirds as a stacked fraction; the fraction 63/64 must be entered to obtain 1/3 and the

fraction 61/64 must be entered to provide the stacked fraction 2/3. All other fractions will

provide the required stacked fraction as entered. Special characters are symbols that do

not exist on the keyboard but are needed in drawings. Certain keys have been

programmed to display these special characters when they are keyed in and placed as text.

The following keys produce these special characters.

11.1.10 Environment Variables (Logical Names)

Saudi Aramco CADD Standard use environment variables for attachment of reference files.

This allows Saudi Aramco files to become platform independent. For that reason the

following environment variable must be defined and used for border attachment.

PID environment variable points to the PID product directory

PFD environment variable points to the PFD product directory

ILD environment variable points to the ILD product directory

E1L environment variable points to the E1L product directory

VOD environment variable points to the VOD product directory

DEF environment variable points to the DEF product directory

FPP environment variable points to the FPP product directory

MS_

FNTLB environment variable points to the font library that includes font 61

MS_

FONTRSC environment variable points to the font resource that includes font 61

11.1.11 DO's and Don'ts

To ensure maximum productivity from the Saudi Aramco CADD systems, the following

CADD drafting parameters must be followed:


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11.1.11.1 All design files must be created from a Saudi Aramco product seed file.

11.1.11.2 Do not override or change the product seed file setups. Do not change the

working units.

11.1.11.3 Saudi Aramco forms (borders) must be referenced only. Do not include forms as part of the design file. A border must remain with the CADD drawing

throughout its continuous life cycle for that particular revision.

11.1.11.4 Do not drop or change Standard Cells. Any required additional cell can be

created in an operator cell library.

11.1.11.5 Do not scale down drawings. Instead, rearrange the drawing or split the

drawing into two drawings. Exception: PIDBH.A and PIDBV.A

11.1.11.6 All elements in schematic type drawings (non-scale) must be placed with

grid/unit lock set to ON position.

11.1.11.7 Use only Saudi Aramco Font 61.

11.1.11.8 The rectangular box provided at the bottom right corner of the border must be

filled out to indicate file type i.e. either VECTOR or RASTER or HYBRID.

11.1.11.9 File design to display the drawing such as that view 1 (maximized) on the RH screen displays bottom RH corner of the drawing showing the title block and

revision column with data fields turned on position. View 5 (maximized) on the

LH screen (or next screen) displays the entire drawing with data fields turned

off position.

11.1.11.10 Always attach the latest border on SACS 2.5.1 whenever, revising or creating

new drawings.


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11.1.12 Electronic File Submittal

11.1.12.1 All electronic files of approved CADD engineering drawings must be submitted

to EDSD. Refer to SAEP-334.

11.1.12.2 The electronic files must be submitted to EDSD via the Drawing Management System (DMS) where applicable, OR through CD media (write speed should

not exceed 4x600kb\sec)

11.1.12.3 Each form 8135 must accompany the corresponding electronic files must be

submitted as per SAEP-334:

11.1.12.4 For all FRAMME-TFIDS submittals generated CADD drawings shall be certified and prepared to meet all Company Standards and then submitted to

EDSD in electronic format as per SAEP-334. The scanned files will be loaded

and made available through DMS for reference purposes (QVP) only.

11.1.13 Title Block Data Entry (SACS 2.5.1 only)

Saudi Aramco Drawing Title Block Automation is a system designed to generate text box

information within Engineering Drawing Files. The same information is also written into the

Design File within an element

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