Cotton Report 14 Jan 2014

REPORT ON Garments Factory Buildings Safety (Structural, Electrical and Fire Safety Assessment

CottonClubBDLtd.8storiedRCmainbuildingandsixothersmallandlowriseadjacentbuildingsatplot925,927,Jarun,

Kashimpur,Gazipur

Shaheedullah & New Associates Ltd 137/B, Jahanara Garden, Green Road, Dhaka-1205

Phone: 88-02-8141952, 8126603, 01817-382783, Fax No: 88-02-8114168, E-mail: [email protected]

EXECUTIVESUMMARY

Structural,ElectricalandFireSafetyAssessmentsFactoryName

CottonclubBDLtd.

Address Jarun,Kashimpur,Gazipur

Thefactoryhassevenbuildings.Thestructuralratingofeightstoried

Building1(mainbuilding)isAthoughsomefootingsandgradebeamsarelightlyoverstressed.Outof79pilefoundationsofmainbuilding53foundationshavebeenfoundlittleoverstressedhavingfactorofsafetyabout2.0.Overallallaresafefor50psfaverageliveloadsor400psfaggregateliveloadforeightfloorsincludingroofonacolumnorfoundation.Gradebeamsareoverstressedagainstseismicloadbutneednotanyremedialworkbecauseadjacentpilecapandcolumnsareveryadequatetoreleaseandtransfertheloadfromthegradebeams.

ThestructuralratingofothersixsmallbuildingsisalsoAexceptthebuilding6(twostoried)whichisinBratingbecauseoflittleinadequacyinitspilefoundations.TheopenspacearoundthebuildingsisalsonotadequateasperBNBC

OverallthestructuralratingofthefactorybuildingsisA.Factorywasassessedon11Septemberandcontinuedtill15September2013forfinding the Electrical Nonconformities with the standards and codes. ThisAssessment isasnapshotof timewhen itwasconducted.Detailson the findingscanbefound indifferentpagesaunderdifferentheaders.Overallgradingofthe

factoryforElectricalSafetywasscoredC=Orange.Factorywasassessedon11Septemberandcontinued till15September2013.Revisittofulfillthegapsonfindingwasagain initiatedon25thDecember2013forfinding the Nonconformities of Fire Safetywith the standards and codes. ThisAssessment isasnapshotof timewhen itwasconducted.Detailson the findingscanbe found indifferentpagesunderdifferentheaders.Over allgradingof the

factoryforFireSafetyandFightingwasscoredB=Yellow.OveralltheratingoftheFactoryisBasperengineeringevaluation

Assessment Report On Cotton Club BD Ltd

Content

Subject Page

Structural 4-50

Electrical 51-102

Fire Safety 103-155

Factory Information Form 156-173

Report of assessment on Cotton Club BD Ltd

RATINGS ON STRUCTURAL MEMBERS OF THE BUILDINGS For Cotton Club BD Ltd

Overall the ratings of main building(Building-1) is A.

Among other six small buildings five nos are in A rating and only one (Building-6) is in B having 1.6 factor of safety on its pile foundations but need no remedial work because of very light live load and not used for any storage . Overall the structural rating of all the factory buildings is A though some grade beams and foundations were found little overstressed.

ReportonCottonClubBDLtd

Detailed Report on Engineering Evaluation 8 storied R.C. Main building and six other small and Low rise adjacent buildings for

Cotton Club (BD) Ltd, at plot 925,927, Jarun, Kashimpur, Gazipur Administration and Enforcement We started our visit to the factory buildings on 11 Sept and made an opening meeting with the Owners administration and their engineering team of the factory. We explained about our mission and asked for the required documents available with them for the assessment (structural, electrical and fire) of the factory buildings. Uttaron technology is our associate consultant for electrical and fire safety assessment.

The drawings and documents which were available from the building owner are

(1) The memorandum of Association of Cotton Club Bd Ltd

(2) License of the Building approved from Paurashava

(3) Architectural Design Drawings of all Buildings

(4) Structural Design Drawings of all Buildings

(5) Geotechnical investigation report and

(6) Electrical layout plan

(7) Single line diagram of electrical distribution.

(8) Fire certificate

(9) Fire approval drawings

(10)Fire as-built drawings

The factory Owner has also filled the checklist forms about some factory information which has been attached in the appendix of this report

The Building Assessment (structural)


General Observations and Requirements

SL No

Item Observation Requirement Remark (if any)

1 Location Plot 925,927, Jarun, Kashimpur, Gazipur free from water logging

Shall not be in any water logged area

Satisfactory

2 Land Zone Industrial Industrial Area Properly classified since materials are fabricated, assembled and processed here

3 Occupancy Type G (G2) because of moderate hazardous zone

4 Approval of the building Paurashava approval for 8 storied Paurashava approval Acceptable

5 Name of Design Engineer Md. Shariful Islam MIEB-30164 Bsc Civil enginner with IEB membership

Acceptable

6 Width of external Road 7 m 10 m Not adequate

7 Total Land area 68000 sft At least 3250 Sft Acceptable

8 Number of Buildings Seven( Building-1 or Main Building and six smaller Buildings 2 to 7

9 Max existing height and Nos of floors of building

85 ft and 8 storied Classed as High Rise

10 Other buildings Max 30ft height Low Rise

11 Basement or car parking floor No basement, No Car parking floor

12 Aggregate floor area of all buildings together

237,000 sft

13 FAR (Floor area ratio) 3.47 (ratio of aggregate floor area of all buildings to land area)

Less or equal to 5 for G2 Adequate

14 Open space all around About 0.0 ft,10ft, 30ft 10 ft Not adequate for all around

15. Plinth height 18 inch from surface level and 24 inch above from road level

18 inch or less from surface level and upper than road level or flood level

Adequate

16 Overhead electric lines 6 m away from building 3.5 m away from building Adequate

17 Boundary walls Solid 20 ft high boundary was observed at road side and Solid 10 ft high boundary was observed at other sides

Max 4.5 ft for solid part and max 9 ft by providing grille / jali

Not Adequate

18 Substation and generator In a separate one storied building

19 Sunshade All were below 2.5 ft horizontally in open space and above 8.25 ft above from FGL

Max 2.5 ft horizontally in open space and at least 8.25 ft above from FGL

Satisfactory

20 Under ground water reservoir, septic tank, inspection pits, sewerage lines

None were found 6 inch above FGL in Open Space

Can be placed in Buildings or in mandatory open area providing the upper level below 6 inch from FGL

Adequate


21 Car parking area 10 Nos 60Nos (1 car parking per 3250 sft floor area)

Not adequate

22 Ceiling height Ground floor is 19.5 ft and other floors are10 ft.

At least 11.5 ft for non air conditioned and 10 ft for air conditioned

Not adequate

23

Stair Case

Total 2 Nos in main building for an average 500 persons per floor and about 26000 sft per floor area

At least 4 nos for more than 1000 person, 3 Nos for 500 to 1000 person and at least 2 nos for below 500 person or 1 stair per 10000 sft floor area; whichever is greater

Not adequate

Width of a flight is 7.25 ft and 5.5 ft for stair and landing

At least 4 ft wide flight (each flight and landing shall have equal width)

Satisfactory

Maximum 10 steps in a flight Maximum 15 step in a flight Satisfactory

5.5 inch riser ,uniform Max 8.5 inch riser height and shall be uniform

Satisfactory

10 ft clear height between flights Min clear height between flight 7 ft Satisfactory

24 Lift core 1 No (8.25 ft X 12.25 ft clear)

25 Entrance of the building The main entrance door area is covered by porch slab

Shall not be in an open into an uncovered exterior

Satisfactory

26 Roof Drainage Proper rain water pipe and proper drainage slope was found (slope is flatter than 1% but adequate)

Roof rain water can be discharged directly to the ground of own property but require a vertical conduit for above two storied. drainage slope on roof shall be adequate

Satisfactory

27 Open space in roof 100% open space in roof At least 30% shall be open in roof Satisfactory

28 Mobile antenna or any type of tower or standing water on the roof

Not found. Two rigid RC water tanks were found with enough bracings and anchorage to resist seismic load.

Satisfactory

29 Parapet 48 inch high (5 brick wall + ms pipe rail ) was found as parapet

All accessible flat roof shall be enclosed by at least 36 inch high

Adequate

30 Dampness and efflorescence Ground floor and plinth walls are damp proof and all concrete ate free from efflorescence

Ground floor, bottom and side of basement, plinth wall shall be damp proof and water proof and concrete shall be free from efflorescence

Satisfactory


31 Ventilation and Lighting Adequate Lighting and ventilation Shall have comfortable lighting and ventilations (natural/artificial/mechanical)

Adequate

32 Any suspended equipment No equipment was detected in any floor more than 20 Kg is not allowed without anchorage

Satisfactory

33 Anchorage of installed pipe

All kinds of conduits pipe for utilities were found with proper clip or anchorage Adequate

34 Water proofing on roof CC pad and neat cement finishing was used as water proofing Satisfactory

35 External wall 5 inch brick wall with adequate plaster and painting was found in most areas and 10 inch thick in lift core and stair case

36 Internal wall 5 inch brick wall with adequate plaster and painting was found in most areas and 10 inch thick in lift core and stair case

37 Foundation Pile foundation in main building and shallow spread footings for other small buildings

Mostly adequate. Detailed report is given in foundation analysis part

38 Column 10 x 20 in Lift core zone,15x15, 20x20 in exterior columns and 20x20, 25x25 in Interior columns

Adequate. Detailed report is given in column analysis part

39 Floor beam 12x24 RC for 21 ft span length (max) in all cases

At least 14 inch depth is required from the criterion of deflection ( L/18.5)

Adequate from criterion of deflection and loadings. Detailed report is given in floor beam analysis part

40 RC Wall No RC walls were used

41 Bracing along peripheral wall All exterior walls have RC bracings along the perimeter which is good for resisting the seismic load.

Adequate

42 Floor Slab 6 inch was found for 20 ft x20ft clear panel

Min 6 inch (Perimeter/180 or (Ln/(36+9))x(0.8+fy/200) for two way slab) where fy=Steel Yield strength (Ksi)

Adequate from criterion of deflection and loadings. Detailed report is given in floor slab analysis part

43 Floor finish 2 to 3 inch floor finish was found Adequate

44 Live load/ storage Live load in all floors was found within a range 40 to 50 psf generally but in some storage L.L. found to be 100 psf

Satisfactory

45 Mezzanine floor Mezzanine floor was found in ground floor

46 Settlement in foundations No significant differential settlement was detected (by measuring plinth level at four corners) and no cracks were found in beam joints with columns which indicates no settlement.

Satisfactory

(Remembering 1 inch settlement is allowed)


47 Crack in Structural member Two minor cracks (less than 0.2 mm crack width) were found in interior 1st floor beams

Max 0.4 mm crack width is allowable

Sizes and reinforcement in beams were found adequate by analysis and calculations

48 Column-beam joint Column beam joints were intact and sound with no cracks

Additional Data Collected from Drawings -Documents and field investigations for structural Analysis:

(1).Architectural Layout plan showing columns, Brick walls, Lift core, stair case, floor slab out line, toilet zone, working area, office area, windows and gates. (2) Elevation of the building showing all floor heights (3) Details of foundation (4) Details of columns, Grade Beams, Floor beams and stair case including sizes and reinforcement for all buildings (5) Details of Lift core, water reservoir of the building. (6). Details of Floor slab for all buildings including thickness and reinforcement. (7) Layout plan of Roof and the storm water drainage system (8) CI sheet as roof covering of small buildings if any (9) Non-destructive field tests have been done in main building to verify concrete strength.

Materials used in Buildings 1. All structural members are built in reinforcement concrete.

2. Stone chips and coarse sand were used as coarse and fine aggregates respectively and a mix ratio of 1:1.5: 3 was used in all concrete in foundations, grade beams and columns. The available strength in columns is 4600 psi by rebound hammer test which comfortably surpasses minimum requirement of 2500 psi. Picked Jhama brick chips and coarse sand were used as coarse and fine aggregates respectively and a mix ratio of 1: 1.5: 3 was used in all concrete in floor slab and beams. The available strength in beams is 3700 psi as found by rebound hammer test which comfortably surpasses minimum requirement of 1700 psi. All RC members have at least 3 hr fire rating.

3. According to General notes in the drawings and from the briefing of Owners engineer, 60 ksi (Yield strength) steel was used in the reinforced concrete which meets the required strength as per analysis and calculations.

4. 5 inch thick brick walls with adequate plaster and mortar found to be used as exterior non load bearing walls, and they have 2 hr fire rating. 10 inch thick brick walls with adequate plaster and mortar were found to be used as fire wall around lift core and fire stair, and they have a 5 hr fire rating. And 5 inch thick brick walls with adequate plaster and mortar were found to be used as interior partition walls and they have a 2 hr fire rating.

5. Wooden doors were found with no fire-proof painting.


Materials Test Reports

SL No Item Observations

1 Concrete strength test from laboratory Not available

2 Concrete strength shown in drawings 4000 psi

3 Concrete strength from rebound hammer test by us 4000 psi

4 Steel strength test from laboratory Not available

5. Rebar (used in RC) strength shown in drawings and by the briefing of Owners engineer

60000 psi

6 Steel (pre-stressed) strength shown in drawings or by their engineers briefing

N/A

7. MS Steel (steel structure) strength shown in drawings or by their engineers briefing

N/A

LoadManagerThe Factory Owner have no civil engineer or supervisor who shall be located onsite full time at the factory, is trained in the structural capacity and operational load characteristics of the specific factory. But they have committed to appoint the personnel. At present they have two persons to follow and check the building loadings and any type of cracks.

1. Abu Md. Arafat Hossain Zoarder Robin (Electrical Eng) Maintenance Manager, Cotton Club (BD) Ltd, Cell--01612661364

2. Sk. Saiful Hossain Asst Manager(HR, Admin & Compliance) Cotton Club (BD) Ltd, Cell-01912831868 Load Plans The average live load for 7 floors shall be equal or below 50 psf and the aggregate live load shall be 350 psf for 7 floors but not greater than 100 psf for an individual floor or panel. The mezzanine floor shall be kept under 30 to 40 psf live load. The roof shall be kept under free from any storage or any additional constructions. Storage or of work materials, installation of machineries and plate capacity Ground floor is can be used for heavy storage of work materials and products or heavy machineries. Storage can be kept in one any floor or panel for a column or foundation. It may be like in 1ft floor for A-3 column, in 2nd floor for B-4


column. If the live load is followed, all columns and beams are able to resist the all combinations of loads ie self weight, live load, seismic load and wind load. Resisting capacity for any point load or heavy intensity of load on a plate depends on the shear and punching capacity of slab materials, quantity of loads, loading area and also on the bending moment capacity. If the bending moment for the point load shall not exceed the bending moment for the 100 psf uniform live load, a 1 ft x1ft RC plate of 6 inch thick (for an example) can resist 20 kip working load considering 3000 psi concrete compressive strength. If the factory Owners wants to provide any point loads on floor slab they will discuss with a structural engineer.

Structural Analysis and Calculations: Loadings of the buildings:

1. Seismic Load: As per BNBC 2.5.6 Base Shear V= ZIC/R where Seismic Zone co-efficient Z = 0.15 for zone 2 for Gazipur, Importance factor I=1.0, C=1.25S/T^(2/3). S=1.5 T=Ct(hn)^(3/4) where Ct.=0. 073 in SI unit for RC moment resisting frame. R=8 for intermediate moment resisting RC frame.

2. Wind Load: As per BNBC 2.44.1 exposure category for this building is Exposure A. Sustain wind pressure,(Kn/m2) qz= CcCiCzVb2 where Ci= importance factor=1.0. Cc= velocity to pressure conversion =47.2x10^(-6). Cz= height and exposure co-efficient. Vb= Basic wind speed= 215 km/hr . Design wind pressure Pz= CgCpqz where Cg= Gust co-efficient taken from table 6.2.11 , Cp=1.5 from table 6.2.15 of BNBC 2006.

3. Live load: 40 to 50 psf in maximum areas and 100 psf in 7th floor as godown was found in main building. Other small buildings have about 40 psf live load. But average 60 psf (after reduction of live load) has been considered for foundation and columns and 100 psf for any individual floor.

a) Building -1:


Introduction: The 8 storied RC Factory Building has about 26000 sft floor area per floor where length is 173-6 (average) ft and width is 155 ft. All Columns are connected with Beams in both directions. Ground floor is 20-8 high and each of other seven floors is 10-6 high. Mezzanine floors at lift core and stair case zone have been found at + 9-10 level from plinth level. Columns and beams sizes are adequate according to deflection and intensity of loadings.

Foundations:Allarepilefoundations.Thereportsonfoundationsaregivenbelow:

Piles SLNo Item Data Remark

1. Lengthanddiameterofpileshownindrawings

55ftlengthand20dia

2. Concretestrengthofpilesaspernotesindrawings

3500psi


3.

Spacingbetweenpiles

Required2.5D(50inchfor20diapile)asperBNBC3.11.1.9

Provided2.5D(50inch)

aspersurveying

Adequate

4. Reinforcementinpiles Required0.4%or612mmaslongbarand

8mm@12c/casstirrup

(MinimumasperBNBC3.11.1.13)

816mmaslongbarand8mm@5c/c

asstirrup

(providedasperdrawings)

Adequateasperbothminimum

requirementsandloadsfrombuildings

5. Pilecapacity Requiredmax230kip.

(D+L)governed

Availablecapacity

is190kipconsidering2.5factorofsafety

**

**Outof79pilefoundations53foundationshavetheratingBandothershavetheratingA.Overallallaresafefor50psfaverageliveloadsonacolumnorfoundationwhereavailablefactorofsafetyis2.1.

Pile Caps:


SLNo Item Data Remark

1. Concretestrengthofpilecapsasperdrawings

3000psi

2. yieldstrengthofsteelinpilecapsasperdrawings

60000psi

3.

Thicknessofpilecaps Required36inch(max)

Againstshearandpunchingload(1.4D+1.7L)

Provided36inch

asperdrawings

Adequate

4. Requiredmaxbottomsteelinpilecaps

Required22mm@250mmc/c

Againstbendingmoment

(1.4D+1.7L)

Provided22mm@210mmc/c

asperdrawings

Adequate

The rating of pile cap is A.

Columns: All are R .C. columns and column-beam joints crack were not detected. The findings are given below:



1. Framingcategory

(bracedornonbraced),

Bldgheight85ft

Bracedframe

Puu/huhs3412M1/M2)

3. Concretestrengthofcolumns

3400psifromconcretestrengthtestbyrebound

hammer

(Mixratiowas1:1.5:3usingstonechipsandcoarsesand

duringconstruction).

Theloweststrengthamong5testsis4600psi.but3400psi

hasbeenconsidered

(ACI5.3.2.2)

4. Steelyieldstrengthofcolumns.

60000psi

Aspernotesindrawings.

60000psisteelisapplicableasconcretestrengthis

satisfactory

5.

Reinforcement(%)incolumnsC1(25x25)

32Nos

Required1.5%(against1100kipaxialloadand230kipft

B.M.(My,minoraxis)

(1.05D+1.275L+1.4025EX)

Provided1.8%asperinvestigation

Adequate

6.

Reinforcement(%)incolumnsC3(25x25)

3Nos


B.M.(My,minoraxis)

(1.05D+1.275L+1.4025Ex)


Adequate

7.

Reinforcement(%)incolumnsC4(20x20)14Nos

Required2%(against670kipaxialloadand160kipftB.M.

(My,minoraxis)

(1.05D+1.275L+1.4025Ez)


Adequate


8.

Reinforcement(%)incolumnsC4a(22dia)

14Nos


(My,minoraxis)

(1.05D+1.275L+1.4025Ex)


Adequate

9. Reinforcement(%)incolumnsC5(20x20)

7Nos


(My,minoraxis)

(1.05D+1.275L+1.4025Ez)


Adequate


1No


B.M.(My,minoraxis)

(1.05D+1.275L+1.4025Ex)


Adequate


1No


B.M.(My,minoraxis)

(1.05D+1.275L+1.4025Ex)


Adequate

12 Reinforcement(%)incolumnsC8(10x20)

2Nos

Required2.5%(against500kipaxialloadand50kipftB.M.(My,minoraxis)

(1.05D+1.275L+1.4025Ex)


Adequate

The rating of column is A.


Grade Beams: Grade beams generally reduce the slenderness of columns, assist to resist lateral loads of wind load and seismic load, bear the load of ground floor brick walls and protect earth inside the building. The findings are given below

SLNo

Item Data Remark

1. Lateralload Windloadataspeedof210km/hrandseismicloadforzone2,Z=0.15

AsperBNBC

BothSeismicandwindloadsare

governedforthisbuilding

2. Concretestrengthinfloorbeams

3000psi


3. SteelYieldstrength 60000psi

aspernotesindrawings

4. CapacityofGradeBeam

GB1(12x18)

Requiredmax(+)B.M.capacityis150kftand()is180kftwith20

kipshear(1.05D+1.275L+1.4025Ex)

Provided(+)capacityis120kftand()is150kftwith55kipshear

asperdrawings

Notadequate

The rating of Grade Beam is B but need not any remedial work because adjacent columns and pile caps are much adequate to distribute the bending moment during earthquake.

Floor Beams and slab:


1. Liveloadonfloorslab 100psf

foranalysisandcalculations

2. concretestrength 26000psi


3. LoadcapacityforSB1

(12x24)floorBeams

Requiredmax()B.M.capacityis280kftand(+)is150kftwith45kipshear(1.05D+1.275L

+1.4025E)

Provided()capacityis292kftand(+)is206kftwith69kip

shearasperdrawings

Adequate


(12x24)floorBeams

Requiredmax()B.M.capacityis215kftand(+)is120kftwith35kipshear

(1.05D+1.275L+1.4025E)


shearasperdrawings

Adequate


(12x24)floorBeams

Requiredmax()B.M.capacityis160kft

and(+)is85kftwith30kipshear(1.05D+1.275L+1.4025E)


shearasperdrawings

Adequate

6. Thicknessoffloorslab Required6.15inchfortwowaybeamslab

Provided6inchfortwowayslab

Adequateiffy=54ksiisconsideredthough60ksihasbeenprovided

ACI9.5.3.3.

7. Capacityoffloorslab

21ftx21ftclearspan

Requiredmax()B.M.capacityis8.0kft&(+)B.M.capacityis5.0

kft

Providedmax()B.M.capacityis8.5kft&(+)B.M.capacityis6

kft

Adequate

The rating of Floor Beam and floor slab is A. The rating of the existing 8 storied factory building for Cotton Club (BD) Ltd, at plot 925, 927, Jarun, Kashimpur, Gazipur is A following the average live load 50 psf per floor and max 100 psf in a individual floor.


Analysis and Calculations for other six Building:

Building-2: The two storied RC Building titled building-2 is used as workers room in ground floor and admin office room

for 1st floor. Foundation is (5x5) spread type at 6 ft below EGL. Required soil bearing capacity is 1.6 ksf where safe soil bearing capacity is 2.0 as per soil report. Reinforcement of footing is adequate. Foundations ate therefore safe.

Column size 10x10 RC is adequate to bear 60 kip factored load with 20 kip-ft bending moment for earthquake.

The rating of Building -2 is A. Building-3: The three storied RC Building plus one basement is mainly used for light storage. Which have mat foundation. Available thickness of mat is 18 where required thickness is 15.

All column are RC of 12x12 size which are adequate to resist 200 kip factored load with 30 kip-ft bending moment for earthquake. The rating of Building -3 is A.


Building-4: The one storied tin Shed building with 10x10 RC column is used as washing plant.

The CI sheet is supported on steel angle. The rating of Building -4 is A.

Building-5: The three storied RC building is mainly used for light storage.

Columns are mainly 10x10 RC where one is 15x15 in middle which are safe against all combinations of loadings.

The rating of Building -5 is A.


Building-6: The two storied RC is used as work shop in ground floor and as dining in 1st floor. Which has pile foundation.

The safe capacity of 12 dia pile is about 25 kip. Where load on pile is about 40 kip. Therefore the has factor of safety about 1.6.

Columns are 12x12 RC which are adequate to resist 60 kip factored load with 15 kip-ft bending moment for earthquake. The rating of Building -6 is B but does not require any strengthening work. Building-7

The one storied RC is used as guard room which has 5x5 spread footing and 10x10 Rc columns. Maximum load on columns is only 20 kip.

The rating of Building -7 is A. Out of seven buildings of Cotton Club BD Ltd at Jarun, Kashimpur, Gazipur six are safe and are in A rating against all combinations of loads according to BNBC and ACI code.

Only one building titled Building-6 (two storied) is in B rating because of inadequate factor of safety in foundations but does not require any strengthening work.

Non Destructive Test of Concrete by Rebound Hammer In

COTTON CLUB (BD) LTD. At Plot No. 927- 927, Kasimpur, Gazipur,Bangladesh.

Date: 23-Sep-2013 Monday

Submitted By

Shaheedullah and New Associates Ltd.

Table of Contents

1. Concrete Rebound Hammer Test

2. Field Data and Strength Calculation

3. Appendices

Rebound Hammer Test:

The Schmidt rebound hammer is principally a surface hardness tester. It works on the principle that the rebound of an elastic mass depends on the hardness of the surface against which the mass impinges. There is little apparent theoretical relationship between the strength of concrete and the rebound number of the hammer. However, within limits, empirical correlations have been established between strength properties and the rebound number.

Further, Kolek has attempted to establish a correlation between the hammer rebound number and the hardness as measured by the Brinell method.

The Schmidt rebound hammer weighs about 1.8 kg and is suitable for use both in a laboratory and in the field. The main components include the outer body, the plunger, the hammer mass, and the main spring. Other features include a latching mechanism that locks the hammer mass to the plunger rod and a sliding rider to measure the rebound of the hammer mass. The rebound distance is measured on an arbitrary scale marked from 10 to 100. The rebound distance is recorded as a "rebound number" corresponding to the position of the rider on the scale.

With the hammer pushed hard against the concrete, the body is allowed to move away from the concrete until the latch connects the hammer mass to the plunger. The plunger is then held perpendicular to the concrete surface and the body pushed towards the concrete. This movement extends the spring holding the mass to the body. When the maximum extension of the spring is reached, the latch releases and the mass is pulled towards the surface by the spring. The mass hits the shoulder of the plunger rod and rebounds because the rod is pushed hard against the concrete. During rebound the slide indicator travels with the hammer mass and stops at the maximum distance the mass reaches after rebounding. A button on the side of the body is pushed to lock the plunger into the retracted position and the rebound number is read from a scale on the body.

Field Data and Strength Calculation:

In our investigation, we have used WTC-H model Rebound hammer manufactured by YOUBANG of Beijing, PRC to determine the compressive strength of concrete columns and beams of some area. Data obtained in this test have been verified with designed structure for comparative study and comments.

A direct Carbonation Depth was not measured in specific test points. But it was necessary to know the carbonation depth of concrete to get the real assessment done. A theoretical depth estimated to assume the extent of carbonation.

The estimate was carried out as per the "GUIDEBOOK ON NON-DESTRUCTIVE TESTING OF CONCRETE STRUCTURES" published by IAEA, VIENNA, 2002. IAEA-TCS-17, ISSN 1018-5518.

The procedure utilizes the age of the building, the water-to-cement ratio and a constant, which varies depending on the surface coating on the concrete.

y = 7.2/R2(4.6x-1.76) C2

Where - y is age of building in years, x is water-to-cement ratio, C is carbonation depth in mm, R is a constant (R= ).

R varies depending on the surface coating on the concrete () and whether the concrete has been in external or internal service (). This formula is contained in the Japanese Construction Ministry publication "Engineering for improving the durability of reinforced concrete structures." () is 1.7 for indoor concrete and 1.0 for outdoor concrete. Values for ()are shown in Table below.

Finished condition Indoor Outdoor No layer 1.7 1.0 Plaster 0.79

Mortar + plaster 0.41 Mortar 0.29 0.28

Mortar + paint 0.15 Tiles 0.21 0.07 Paint 0.57 0.8

Therefore, the Carbonation depth,

C = (y)0.5*R(4.6*x - 1.76) / (7.2)0.5

Age of the building, y = 06 yearsWater Cement ratio, X = 0.50 (assumed)

R=DE = 1.7 * 0.79 = 1.343

Therefore, C = (6)0.5*1.343 (4.6*0.50 -1.76) / (7.2) 0.5C = 0.662 mmSay, 1.0 mm as minimum

Therefore, a minimum of 1.0 mm Carbonation is estimated from the calculation. However, the actual carbonation depth may vary and is subjected to further carbonation depth check by

phenolphthalein test

The reference of Table-III mentioned in the data tables are furnished in the Rebound hammer manual. The same also mentioned in the appendices of this report for reference

Here, Compressive strength obtained by rebound hammer is cube strength

Common Data related to Rebound Hammer test: Furnished as per ASTM C 80S/805M 08

Date of Testing: 22-Sep-2013Time: 3:30 PM to 6:30 PMAir Temperature: 32 C Age of Concrete: 06 years

Hammer Serial Number: 4320

Date of last Hammer verification: 02-Aug-2013

Concrete Surface Moisture Condition: Dry Concrete Grade of test members: Not KnownAverage Carbonation Depth Considered: 1 mm

All the Test Columns are located at Ground Floor in same Building. And Test Slabs are at 1st

Floor level and tested from bottom

RO

AD

Two

stor

ied

bui

ldin

g-2

Tin shed

washing

building-4

Temporary tin shed

Eight storied building-1

E.T.P

Tin shed

SITE LAYOUT PLAN.

Tin shed

Three storiedbuilding-3

Two storied building-6

One storied building-7 Guard room

Three storied

building-5

0ne storied Generator room

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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137 B, GREEN ROAD, JAHANARA GARDEN, DHAKA -1205.

SHAHEEDULLAH AND NEW ASSOCIATES LTD.ARCHITECTS AND ENGINEERS

Phone : 8141952, 8126603.

Mobile : 01911 350416, 01681 482557E - Mail :- [email protected]

Fax :- 88 - 02 - 8114168

241,'%6 '+)*65614+'&(#%614;$7+.&+0)%16610%.7$$&.6>.16015#,#4705176*-#5*+/274)#

GROUND FLOOR PLAN (BUILDING-1).

22'-0" 22'-0" 22'-0" 22'-0" 22'-0" 22'-0" 22'-0"176'-0"

1 2 3 5 6 7 8 910'-10"

10

154'-0"

UP DN

UPDNGATE GATE

Lift core

GATE

11'-2"

4

8'-9

"13

'-3"

22'-0

"22

'-0"

22'-0

"22

'-0"

22'-0

"9'

-81 2

"7'

-01 2

"5'

-3"

176'

-0"

A

B

C

D

E

F

G

H

I

J

K

L

M

8'-9

"13

'-3"

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

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8'-9

"13

'-3"

22'-0

"22

'-0"

22'-0

"22

'-0"

22'-0

"9'

-81 2

"7'

-01 2

"5'

-3"

176'

-0"

A

B

C

D

E

F

G

H

I

J

K

154'-0"

MEZZANINE FLOOR (+9'-10")

UP DN

UPDN

22'-0" 22'-0" 22'-0" 22'-0" 22'-0" 22'-0" 22'-0"176'-0"

1 2 3 5 6 7 8 910'-10"

1011'-2"

4

L

M

8'-9

"13

'-3"

MEZZANINE FLOOR +9'-10" LEVEL (BUILDING-1).

MEZZANINE FLOOR (+9'-10")

UP

DN

Lift core

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

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12'-1

114"

11'-6

"9'

-10"

9'-8

1 4"

10'-1

0"10

'-8"

9'-1

1"7'

-01 2

"10

'-9"

GROUND FLOOR PLAN(BUILDING-2).

16'-614"

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

241,'%6 '+)*65614+'&(#%614;$7+.&+0)%16610%.7$$&.6>.16015#,#4705176*-#5*+/274)#

7'-7"16'-10"

18'-3"17'-11"

8'-5"8'-5"

17'-0"

11'-0"11'-0"

GROUND FLOOR PLAN(BUILDING-3).

UP

DN

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

241,'%6 '+)*65614+'&(#%614;$7+.&+0)%16610%.7$$&.6>.16015#,#4705176*-#5*+/274)#

4'-5"

9'-4"

9'-6"

4'-111

2 "

9'-2"

9'-2"

4'-5"

4'-412"9'-1012"

9'-10"4'-412"


24'-612"

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

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9'-63 4" 9'-63 4" 9'-63 4" 9'-63 4" 9'-63 4" 9'-63 4"

57'-4"

17'-4

"16

'-3"

15'-1

1"15

'-9"

15'-1

0"8'

-7"

89'-8

"

10'-4" 18'-0" 14'-7" 14'-6"

UP

DN

CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

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9'-1

0"9'

-10"

9'-3

"8'

-4"

11'-10"


CONSULTANT :%*'%-'垒'&5/5*#*''&7..#*

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Phone : 8141952, 8126603.


Fax :- 88 - 02 - 8114168

241,'%6 '+)*65614+'&(#%614;$7+.&+0)%16610%.7$$&.6>.16015#,#4705176*-#5*+/274)#

Electrical Safety Assessment of Cotton Club (BD) Ltd. Project Summary Page 1 of 106

Electrical Safety Assessment Administration and Enforcement The report is as detailed as possible, made illustrated so that this can be used as a checklist. The criteria used can be found in Nonconformities and Code Descriptions in Electrical Measurement part. A summary sheet of the findings and measurement are attached with this report. Project Description

Name of the Facility Cotton Club (BD) Ltd. Location of the Facility Jarun (South), Kashimpur, Gazipur, Dhaka, Bangladesh Nature of Facility 100% Export oriented Readymade Garments Factory Area of Floor 1,89,000 Sft (Approximately) Electrical Safety Rating (Overall) Orange (C) Time to Complete the Deficiencies D=30, C =90, B=180 Days

Electrical Safety Assessment: Overall Rating for Cotton Club (BD) Ltd. is:

D C B

The details of the score are shown in different chapters of this report and brief with the summary

Classification of Findings Symbol Negative Points of each Findings No. of Findings Red D 10 86

Orange C 8 255 Yellow B 3 167

Total Number of NCs (Non Compliances)= 508


Following criteria were used for this assessment: 1. Alliance Standard draft v0.4, October 15, 2013 and v0.5, November 26, 2013 2. Bangladesh National Building Code (BNBC) 2006 Electrical Part. 3. Bangladesh Electricity Rules 1937 Appropriate Sections. 4. Appropriate parts of the NFPA 70 (NEC-2011) Edition 2011.

For this, the following chapters of NFPA 70 were taken into consideration:

a. Chapter 1 General (Appropriate Sections) b. Chapter 2 Wiring and protection (Appropriate Sections) c. Chapter 4 Equipment for general use (Appropriate Sections) d. Chapter 6 Special Equipment (section 605, 670 and 695 only) e. Chapter 7 Special Conditions (section 705 and 760)

The methodologies of the inspection are: 1. ON Load Measurement of Voltage, Current in different Distribution Boxes: These values were evaluated in

order to ascertain any possible adverse condition that may lead to further deterioration and incident/accident.

2. Thermography: Abnormalities of temperature variation was captured from the live distribution boxes, buses and protective devices by thermal imager to analyze the causes of problems

3. OFF Load Measurement: Earth and Insulation Resistance were measured and evaluated with the standards and recommendations.

4. Inspection of the whole Electrical System Network: The Electrical System Network was checked section by section, floor by floor, from the Electric source to the final electric outlet and/or load points. Any differences or deviations against the criteria were noted. Components/areas having lapses were photographed.

5. A thorough analysis of all the findings was made and report prepared in following manner: A set of descriptive Non-Conformity Reports (NCRs) were made, where the deficiencies are described and associated references are cited in next pages.

Interpretation of the Report In order to use the reports effectively, following points need to be noted:

1. Please go through the summary documents at the beginning of the report and note the overall rating of the facility.

2. At the facility level, management to assign appropriate persons to study the reports, and make a detailed action plan immediately, based on the report and recommendations at various points, share this with us, and execute the improvements. For your safety and liability purposes, we recommend that licensed contractors evaluate and repair any major concerns and defects.

3. For any clarification of the reports, we can arrange a meeting, where any item which is not readily understood can be explained.

Facility Description Name of the Facility: Cotton Club (BD) Ltd. Jarun (South), Kashimpur, Gazipur, Dhaka, Bangladesh Nature of the Facility: 100% Export oriented Readymade Garments Factory Contact Person: Abu Md. Arafat Hossain Joarder (Manager, Maintenance). Contact no. 01712-661364 No of Floors: 7 Total Floor Area: 1,89,000 Sft. (Approximately)


Summary of Electrical System Description Quantity

Transformer 01 Generator (DG) 03 LT Switch 02 DB/MDB 20 SDB 03 Technician 06

Numbers of Findings on Non Compliances (NCs) Descriptive NC Photographic NC Thermal NC Visual & Measure Time to Rectify

Deficiency- Red 0 16 9 61 30 Days Deficiency- Orange 0 8 18 229 90 Days Deficiency- Yellow 13 0 14 140 180 Days

Calculation of Deficiency Rating

Color of Findings Symbol Negative Points of each Findings No. of Findings Total Negative Point Red D 10 86 860

Orange C 8 255 2040 Yellow B 3 167 501

Total Negative Points in 1,89,000 Sft= 3401 Negative Point per 1,000 Sft= 17.99

Final Result: Rating of the Factory

Name of the Facility According to Negative Points Scored (Rating) According to Negative Points and

Consideration Factors (Final Rating) Cotton Club (BD) Ltd. Orange C

Factory/Premises Rating Table Based on NC and Consideration Factors

Status A: Compliant B: Yellow C: Orange D: Red Grade Consideration 0 0.1 to 15 15.1 to 25 25.1 and above

Rating Criteria at a Glance

1. If ordinary wooden Enclosure used in Electrical System then the factory may be rated as D. 2. If any single floor or part of a building is rated D, then the entire building will be rated as D. 3. If a lot of looping connections, connection without lug and no space and no spare MCB/MCCB is available in

LT/MDB/DB/SDB then the factory/installation/facility will be rated as C.


4. If numbers of Circuits having no protection with MCCB/MCB/Fuse then the factory/installation/facility will be rated as C.

5. If numbers of Circuits having unknown load then the factory/installation/facility will be rated as C. 6. If the Sub-Station/Boiler room is or in the factory building but layout of these are not as per BNBC code, then

the factory will be rated as C.

Electrical Safety Assessment of Cotton Club (BD) Ltd. Finding Summary Page 5 of 106

Cotton Club (BD) Ltd. Jarun (South), Kashimpur, Gazipur, Dhaka, Bangladesh. Electrical Safety Assessment Summary from Descriptive NC, Visual Inspection and Enclosure Data Sheets

SL. Observation NC Picture Reference Identification Total Finding(s) Consequences Time to

Complete (Days)

Source of Findings

1

Absence of Planned Periodical inspection/testing

and maintenance of all electrical equipment

NC-1.1, 1.4

N/A= Not Applicable N/A 2 Major Shutdown may occur 180 Collected Information

2 Absence of Periodical

insulation resistance test (IR test)

NC-1.2 N/A N/A 1

Failing of adequate resistivity of the cables may leads short circuit

180 Collected Information

3 Absence of Load

measurement (Voltage and Current) on all feeders

NC-1.3 N/A N/A 1

Causes the failure/loss of equipment 180 Collected Information

4 Higher rated MCCB/MCB is used to protect the lower

rated cable

NC-1.5 N/A

LT-1/SS/GF, LT-2/SS/GF, COS-01(Knitting Section, COS-02, COS-03, COS-04, COS-05, COS-06, COS-07,

COS-08, COS-09, COS-10, COS-11, MDB-Cooling ,MDB-Washing, MDB-Dyeing, MDB-1/7th floor,

SDB-1/7th floor, SDB-2/GF, MDB-Dying-2/GF, MDB-Dying-1/GF, MDB-Dying-3/FS, MDB-1/1st Floor,

MDB-2/1st Floor, DB-1/1st Floor, DB-1/2nd Floor, DB-2/2nd Floor, MDB-2/6th floor, MDB-2/5th

Floor,MDB-1/5th Floor, MDB-1/4th floor, MDB-2/4th floor, MDB-1/3rd floor, MDB-2/3rd floor

34 Circuit Protection is in Risk 30 From Measurement Data

Sheet

5 Unknown load is connected to different DBs NC-1.6 N/A Load Data Sheet was not provided in time 1

Overload may interrupt the system 30

From Measurement Data Sheet

6

List and diagram of the circuits that the distribution

boards (SDB/DB/MDB) control, are not available.

NC-1.7 N/A N/A 1

Emergency Response and Maintenance will

be hampered 180 Visual Inspection

7 Clear identification/marking is not available at LT, MDB

and DB MCB/MCCB

NC-1.8 N/A N/A 1

Emergency Response and Maintenance will

be hampered 180 Visual Inspection

8

There is no means to know for how many over current

devices the panel board (MDB, SDB, LT etc.) was designed and rated for.

NC-1.9 N/A

LT-1/SS/GF, COS-01(Knitting Section), COS-02, COS-03, COS-04, COS-05, COS-06, COS-07, COS-08, COS-

09, COS-10, MDB-Cooling , MDB-Dyeing, SDB-2/GF,MDB-2/4th Floor, MDB-2/4th Floor, MDB-

Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-office/2nd Floor, DB-2/2nd Floor, MDB-2/6th Floor,

MDB-2/5th Floor

23 Circuit Protection is in Risk 180 From Checklist



Complete (Days)

Source of Findings

9 Cables connected without lugs/Splicing joints NC-1.10

A-1,2,3,4,5,6,7,8,10,16,17 11 Cause of loose

connection may lead heat and fire.

30 From Hazard Pictures

10 Means for identification not available for the final circuits

in the following DBs.

NC-1.13 N/A

COS-09, COS-11, MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, SDB-2/GF, MDB-2/4th Floor, MDB-2/4th Floor, SDB-1/GF, MDB-

Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st floor,DB-1/2nd floor, DB-office/2nd Floor, MDB-1/6th floor, MDB-2/6th Floor, MDB-2/5th Floor, MDB-1/5th Floor, MDB-1/4th Floor, MDB-2/4th Floor, MDB-1/3rd Floor, MDB-2/3rd Floor,

MDB-1/3rd floor, MDB-2/3rd Floor

26 Circuit Protection is in Risk 30 From Checklist

11

Cable Overloaded, Cable Lugs not fixed properly.

Probable Deficiency - Immediate correction

required

NC-1.17

IR005167, IR005174, IR005175, IR005179, IR005183, IR005185, IR005192, IR005200, IR005207 9

Will burn the cable and contactor 30 From Thermography

12 Safety guard for the cables is absent NC-1.18

A-13,15,21 3 Insulation of cables may be damaged 30 From Hazard Pictures



Complete (Days)

Source of Findings

13 Combustible materials kept near to the Electrical system NC-1.19

A-19,20 2

May be the cause of fire by ensuring the probability of communicating

fire


14

Neutral and Grounding should not be shorted but

both are shorted in the mentioned MDB/DB/SDBs

NC-1.21 N/A

LT-1/SS/GF, LT-2/SS/GF, COS-03, COS-04, COS-11, MDB-Dyeing, MDB-1/7th Floor, SDB-2/GF, MDB-2/4th Floor, MDB-2/4th Floor, SDB-1/GF, MDB-Dying-3/GF, MDB-

1/1st Floor, MDB-2/1st Floor,DB-1/1st floor, DB-1/2nd floor, DB-office/2nd Floor, MDB-1/6th floor, MDB-2/6th Floor, MDB-2/5th Floor, MDB-1/5th Floor, MDB-1/4th Floor, MDB-2/4th Floor, MDB-1/3rd Floor/GF, MDB-2/3rd Floor/GF, MDB-1/3rd floor, MDB-2/3rd Floor

27

Over Current may flow through

grounding and could be the cause

of failure of the system

180 From Checklist

15

Cable Lug not Fixed Properly, Cable Overloaded.

Probable Deficiency - Monitor until Corrective

Measures can be accomplished

NC-1.22

IR005168, IR005169, IR005173, IR005176, IR005177, IR005180, IR005184, IR005186, IR005187, IR005191, IR005198, IR005199, IR005203, IR005204, IR005210,

IR005212, IR005214, IR005221

18 May burn the

cable and breakers

90 From Thermography

16

No. of outgoing circuit Neutral and Earth

conductors is not equal to the no. of outgoing circuits

NC-1.23 N/A

LT-1/SS/GF, LT-2/SS/GF, COS-01(Knitting Section), COS-02, COS-03, COS-04, COS-05, COS-06, COS-07, COS-08, COS-09, COS-10, COS-11, MDB-Cooling ,MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, SDB-

2/GF, SDB-1/GF, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st floor, DB-1/2nd floor, DB-office/2nd Floor, DB-2/2nd Floor, MDB-1/6th floor,

MDB-2/6th Floor,MDB-2/5th Floor, MDB-1/5th Floor, MDB-1/4th Floor, MDB-1/3rd Floor/GF, MDB-2/3rd

Floor/GF, MDB-1/3rd floor, MDB-2/3rd Floor

36

May cause of Electrical shocking

hazard and overload

90 From Checklist



Complete (Days)

Source of Findings

17

Means for identification not available for Circuit-Neutral and Earth conductors in the

following MDB/DBs

NC-1.24 N/A





36 May cause of

Electrical shocking hazard

90 From Checklist

18

Phase, Neutral and earth bus-bars not used and

connected properly in the following panel boxes.

NC-1.25 N/A

LT-1/SS/GF, COS-01(Knitting Section), COS-02, COS-03, COS-04, COS-05, COS-06, COS-07, COS-08, COS-09, COS-10, COS-11, MDB-Cooling , MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, SDB-1/GF, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st floor, DB-1/2nd floor, DB-2/2nd Floor, MDB-1/6th floor, MDB-2/6th Floor, MDB-2/5th Floor, MDB-1/4th Floor, MDB-1/3rd Floor/GF,MDB-2/3rd Floor/GF, MDB-1/3rd floor, MDB-2/3rd Floor

32

Difficult to expand add or reduce specific load

circuit

90 From Checklist

19 Identification of

Neutral/Earth Conductor is not permanent

NC-1.26 N/A N/A 1

Risk of electrical shocks during working in the

boxes

90 From Checklist

20 Some of the distribution

boards (MDB/DB/SB) have inadequate ECC

NC-1.28 N/A

LT-1/SS/GF, COS-01(Knitting Section, COS-02, COS-03, COS-04, COS-05, COS-06, COS-07, COS-08, COS-09, COS-10, COS-11, MDB-Cooling , MDB-Washing, MDB-Dyeing,

MDB-1/7th floor, SDB-1/7th floor, MDB-Dying-2/GF, MDB-Dying-1/GF, MDB-Dying-3/FS, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st Floor, DB-1/2nd Floor, DB-2/2nd Floor, MDB-1/6th floor, MDB-2/6th floor, MDB-2/5th Floor, MDB-1/5th Floor,MDB-1/4th floor, MDB-

2/4th floor, MDB-1/3rd floor, MDB-2/3rd floor

33

Hampering the safety of the

equipment and lives

90 From Measurement Data Sheet



Complete (Days)

Source of Findings

21 Panel board cabinets and

panel board frames are not grounded

NC-1.29 N/A


2/GF, SDB-1/GF, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, SDB-



floor, MDB-2/3rd Floor

35


boxes

90 From Checklist

22

Load current must be measurable in all circuits but cables are not well dressed in the following MDB/DBs

NC-1.30

B-9 1

Cause of loose connection may

lead heat and fire. Measuring

Volt/Amps is difficult to

understand the circuit conditions


23 Periodical Earth Resistance Test not carried out for all

earthing systems

NC-1.31 N/A N/A 1

Higher earth resistance may be

the cause destroying or

malfunctioning of equipment


24 Adequate illumination is absent in front of Enclosures NC-1.32 N/A

COS-11, MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, MDB-2/4th Floor, SDB-1/GF, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/2nd floor, MDB-1/6th floor, MDB-2/5th Floor, MDB-1/5th Floor,MDB-1/4th Floor, MDB-2/4th Floor, MDB-2/3rd Floor/GF, MDB-1/3rd floor, MDB-2/3rd Floor

19


boxes

90 From Checklist

25 Multiple cables entered in one point either on busbar

or MCB, MCCBs

NC-1.33 N/A B-2,5,8,10,12,13,15 7

Cause of loose connection may

lead heat and fire. 90 From Hazard Pictures



Complete (Days)

Source of Findings

26

Proper bushings (gland) are not used at cable entering

point of Boards and panels. Moisture, dust and vermin

may enter in to boxes

NC-1.38 N/A

LT-1/SS/GF, LT-2/SS/GF, COS-01(Knitting Section), COS-02, COS-03, COS-04, COS-05, COS-06, COS-07, COS-08, COS-09, COS-10, COS-11, MDB-Cooling ,MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, MDB-

2/4th Floor, MDB-2/4th Floor, SDB-1/GF, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st

floor, DB-1/2nd floor, DB-2/2nd Floor, MDB-1/6th floor, MDB-2/6th Floor,MDB-2/5th Floor, MDB-1/5th Floor,

MDB-1/4th Floor, MDB-2/4th Floor, MDB-1/3rd Floor/GF, MDB-2/3rd Floor/GF, MDB-1/3rd floor, MDB-

2/3rd Floor

37

Vermin, dust and moistures may enter in to the

boxes and could be cause of

electrical short circuit

90 From Checklist

27 V/A meters' calibration was never done after installation NC-1.40 N/A N/A 1

Error in reading of meter could be

the cause of lose of lives and machines


28

Indicator lamps for some of the MDB/DB are not present

or connected without any protective device

NC-1.41 N/A

COS-01(Knitting Section), COS-02, COS-05, COS-06, COS-07, COS-08, COS-10, COS-11, MDB-Cooling , MDB-

Washing, MDB-2/4th Floor, SDB-2/GF, SDB-1/GF, MDB-1/1st Floor,MDB-2/1st Floor, DB-1/1st floor, DB-

office/2nd Floor, DB-2/2nd Floor, MDB-1/6th floor, MDB-1/3rd Floor/GF, MDB-2/3rd Floor/GF, MDB-1/3rd

floor, MDB-2/3rd Floor

23

Absence of indicators will

mislead the persons and could

be the cause of lose of lives and

machines

180 From Checklist

29 Many Ampere meter and Volt meter are out of order NC-1.42 N/A

COS-11, MDB-Washing, MDB-Dyeing, MDB-1/7th Floor, MDB-2/4th Floor, MDB-Dying-3/GF, MDB-1/1st Floor, MDB-2/1st Floor, DB-1/1st floor, DB-office/2nd Floor, DB-2/2nd Floor, MDB-1/6th floor, MDB-2/6th Floor, MDB-2/5th Floor,MDB-1/5th Floor, MDB-1/4th Floor, MDB-1/3rd Floor/GF, MDB-2/3rd Floor/GF, MDB-1/3rd floor, MDB-2/3rd Floor

20

Understanding of system health instantly is not

possible without meters.

180 From Checklist

30

In front of few MDB/DB/SDBs there is no

electrical graded rubber mat and in front of few other

MDB/DB/SDBs non-graded and inadequate sized rubber

mats used.

NC-1.43 N/A

COS-08, COS-09, COS-11, MDB-Washing, MDB-2/4th Floor, SDB-2/GF, SDB-1/GF, DB-1/1st floor, DB-

office/2nd Floor, MDB-2/6th Floor 10


boxes

180 From Checklist



Complete (Days)

Source of Findings

31

There is no instruction board found for restoration of persons suffering from

electrical shock at any place in the factory.

NC-1.44 N/A N/A 1

Presence of such instruction will

help the victim in need


32

There was no instruction board found in the factory

for artificial respiration in case of electric shock.

NC-1.45 N/A N/A 1

Presence of such instruction will

help the victim in need


33 All Phase conductors,

Neutral and Earth should follow the color code.

NC-1.47 N/A





36

May cause of burning of

equipment or machines

180 From Checklist

34

Cable Lug not Adequate, Contact Loose, Breaker

Overloaded, Dry & Loose contacts. Probable

Deficiency - Repair as Time Permits

NC-1.48

IR005157, IR005159, IR005160, IR005161, IR005162, IR005166, IR005171, IR005178, IR005196, IR005201,

IR005202, IR005206, IR005211, IR005213, 14

May burn the cable and breakers

180 From Thermography

35 Hand held tools used by the electricians are not double

insulated

NC-1.49 N/A N/A 1

Can be the cause of electrical shock and losing workers

lives

180 Visual Inspection

36 There is no adequate lightning protection

arrangement of the building.

NC-1.50 N/A N/A 1

Proper arrangement

should be in place for the safety of workers and the machines as well




Complete (Days)

Source of Findings

37

Phase and Neutral should be same size but in the

following MDB/DBs have deficiencies

NC-1.51 N/A MDB-1/1st Floor 1

Could be the cause of

unbalancing loads and destroying the

equipment

180 From Measurement Data Sheet

38

Indicator lamps for most of the LT-PANEL/MDB/DB/SDB

connected without any protective device

(Fuse/MCB)

NC-1.52 N/A N/A 1

Error in reading of meter could be

the cause of loss of lives and machines


Corrective Actions on Deficiencies

D (Red)= Need to check immediately the following and correcting accordingly a. Breaker Sizes b. Multiple cables in one points c. Proper size of cable lugs and crimping with proper tools d. Loose connections

C (Orange)= Monitor the followings until corrective measures can be accomplished and correct after completing the above issues a. Dressing of cable in correct order b. Closing of cable entrance c. Illumination in front distribution boxes d. ECC for distribution boxes

B (Yellow)= Check the following and correct in next schedule of maintenance a. Instruction Boards b. Rubber mat in front t of distribution boxes c. Periodical Earth and Insulation Resistance program d. Indicator lamps for the distribution boxes e. Volt and Ammeters for the distribution boxes

Electrical Safety Assessment of Cotton Club (BD) Ltd. NCs by Description Page 13 of 106

Nonconformities (NCs) by Description

Cotton Club (BD) Ltd. has some deficiencies in the electrical system network, which is listed below for appropriate correction and corrective actions. All the deficiencies will be presented later in this document through pictures, data sheets on enclosures, overall visual inspection reports. All the pictures, data are the part of this report.

1. General Requirements:

NC 1.1: (B): Planned Periodical inspection/testing and maintenance of all electrical equipment shall be carried out in order to ensure proper operability of the installation and record of the same should be maintained. No such program schedule or record is evident here for inspection and maintenance of the electrical equipment. This is a violation of Section 2.11.1 of BNBC-2006.

NC 1.2: (B): Periodical insulation resistance test (IR test) shall have to be carried out for all electrical equipment

with Meggar 0.5 KV or 1 KV (according to the voltage rating of equipment). No such program schedule or record of Periodical insulation resistance test is evident here. This is a violation of Section 2.11.2.1 of BNBC-2006.

NC 1.3: (B): Load measurement (Voltage and Current) is needed on all feeders in every year to monitor the condition and tendency of the equipment. No such program schedule or record of load measurement is evident. This is a violation section 2.11.4 of BNBC- 2006.

NC 1.4: (B): Notice for periodical inspection and testing at least once in every 2-year should be displayed at the factory LT room. No such notice was found. This is a violation of Bangladesh Electricity Rules 1937, Clause 49 (5).

NC 1.5: (D): Higher rated MCCB/MCB is used to protect the lower rated cable in MDB/SDBs is a violation of section: 2.7.6.3 and 2.7.6.4 of BNBC-2006.

NC 1.6: (D): Unknown load is connected to DBs is a violation of section: 2.7.5.6(d) of BNBC-2006. Data on

Connecting Load was not provided during inspection. NC 1.7: (B):List and diagram of the circuits that the distribution boards (SDB/DB/MDB) control, are not available.

This is a violation of section: 2.7.5.6(d) of BNBC-2006 which requires Each (Distribution Board) shall be provided with a circuit list giving diagram of each circuit which it controls and the current rating for the circuit and size of fuse element.

NC 1.8: (B): Clear identification/marking was not available at LT, MDB and DB MCB/MCCB. This is a violation of section: 2.11.5.4 (point-9) of BNBC-2006. As per BNBC-2006, clear and permanent identification marks are required to be painted in all distribution boards, switchboards, sub main boards and switches as necessary.

NC 1.9: (D): There is no means to know for how many over current devices the panel board (MDB, SDB, LT etc.) was designed and rated for. Also, means of prevention of installing exceeding the designed number of devices is not available. This is a violation of section 408.54, NFPA70-2011. As per NFPA70-2011, a panel board shall be provided with physical means to prevent the installation of more over current devices than that number for which the panel board was designed, rated, and listed. For the purposes of this section, a 2-pole circuit breaker or fusible switch shall be considered for two over current devices; a 3-pole circuit breaker or fusible switch shall be considered for three over current devices.


NC 1.10: (D): In the following MDB/DB/SDBs cables are attached using splicing joint at their bus-bar without using cable lugs. This is a violation of Section 2.5.4.4 and 2.5.5.4 (c) of BNBC-2006.

NC 1.11: (D): Sockets & Lights are in same circuit in DBs is a violation of Section: 2.7.5.6(d) of BNBC-2006. As per

BNBC-2006. NC 1.12: (D): MCB/MCCBs installing in exposed condition is a violation of Bangladesh electricity rules 1937,

clause-49(3). NC 1.13: (D): Means for identification not available for the final circuits in the following DBs. Violation of the rule

refers to section 200.10 NFPA70-2011. NC 1.14: (D): Using of wooden board as enclosure and supporting base of MCB/MCCB is a violation of section:

2.11.5.4 (point-1) of BNBC-2006. NC 1.15: (D): Interlocks should be provided for multiple power sources (LT & MDB). Violation of this rule refers to

section 225.17 NFPA70-2011. NC 1.16: (D): Main incomer of the panel should be operable. Violation of this rule refers to section 520.53 (C)

NFPA70-2011. NC 1.17: (D): As per Electrical Testing Association ANSI/MTS-07 Thermographic Survey Suggested Action Based

on Temperature Rise. Major Deficiency - Immediate Correction Required "- If difference is more than 40.0C and above from measured Ambient Temperature. Below is list of reference of D deficiencies base on temperatures.

NC 1.18: (D): Arcing Parts. Parts of electrical equipment that in ordinary operation produce arcs, sparks, flames,

or molten metal shall be enclosed or separated and isolated from all combustible material as directed in NFPA70-2011 section 110.18. Phase separator should be used at the terminals of the main disconnections (MCCB, MCB). Air gap should be minimum 25mm.

NC 1.19: (D): As per NFPA section408.17 Location Relative to Easily Ignitable Material. Switchboards shall be

placed so as to reduce to a minimum the probability of communicating fire to adjacent combustible materials. Where installed over a combustible Floor, suitable protection thereto shall be provided.

NC 1.20: (D): Damp and Wet Locations. In damp or wet locations, surface-type enclosures within the scope of

this article shall be placed or equipped so as to prevent moisture or water from entering and accumulating within the cabinet or cutout box, and shall be mounted so there is at least 6-mm (14-in.) airspace between the enclosure and the wall or other supporting surface. Enclosures installed in wet locations shall be weatherproof. For enclosures in wet locations, raceways or cables entering above the level of un insulated live parts shall use fittings listed for wet locations. Exception: Nonmetallic enclosures shall be permitted to be installed without the airspace on a concrete, masonry, tile, or similar surface, as directed in NFPA70-2011 section 312.2.

NC 1.21: (B): As per NFPA70-2011 clause 250.186-C, Neutral and Grounding should not be shorted. NC 1.22: (C): As per Electrical Testing Association ANSI/MTS-07 Thermographic Survey Suggested Action Based

on Temperature Rise. "Certain Deficiency - Monitor until Corrective Measures can be accomplished"- If difference is more than 20.0C and up to 40.0C from measured Ambient Temperature.


NC 1.23: (C): The no. of outgoing circuit Neutral and Earth conductors need to be equal to the no. of outgoing circuits to avoid unbalancing of loads. Violation of the rule refers to section 200.6, 210.11 and 210.19 NFPA70-2011.

NC 1.24: (C): Means for identification not available for Circuit-Neutral and Earth conductors in the following DBs.

Violation of the rule refers to section 200.6, 310.120 NFPA70-2011. Following DB has the deficiencies. NC 1.25: (C): Phase, Neutral and earth bus-bars not used and connected properly in the following panel boxes.

Violation of the rule refers to section 408.3(E) and 408.41 NFPA70-2011. NC 1.26: (C): Identification of earthed conductors and earthed neutral conductors shall be of permanent nature.

It is not followed in most of the boards. Most of the boxes there is no identifications. It is a violation of Bangladesh Electricity rules 1937, clause 51 and section 408.41 of NFPA70-2011.

NC 1.27: (C): No protective devices (MCCB, MCB) or without identification of their ratings which are listed below.

Proper rating is required to select the wire size as well as selection and coordination of the circuits. This is a violation of section: 2.7.6.1 of BNBC-2006, 110.22(A) NFPA70.

NC 1.28: (C): Having inadequate ECC (earth continuity conductor) for the distribution boards (DB/MDB/SB) is a

violation of section: 2.8.3.3(c) & Table-8.2.11of BNBC-2006. As per BNBC-2006, ECC size shall not be less than half the area of the largest current carrying conductor supplying the line. If the phase conductor is less than 16 mm2 then ECC will be same size but not less than 14SWG (3.243mm2) and if the size is 16 to 35 mm2 then ECC will be 16mm2.

NC 1.29: (C): As per clause 408.40 NFPA70-2011, Panel board cabinets and panel board frames, if of metal, shall

be in physical contact with each other and shall be grounded. Where the panel board is used with nonmetallic raceway or cable or where separate grounding conductors are provided, a terminal bar for the grounding conductors shall be secured inside the cabinet. The terminal bar shall be bonded to the cabinet and panel board frame, if of metal; otherwise it shall be connected to the grounding conductor that is run with the conductors feeding the panel board.

NC 1.30: (C): Load current must be measurable in all circuits. This is a violation of section 2.11.4 of BNBC-2006. NC 1.31: (B): Periodical Earth Resistance Test shall have to be carried out for all earthing systems and the result

thereof shall be kept for a period of not less than two years after the test so made and shall be available to the Inspector when required. No such programmed schedule or record of Periodical Earth Resistance Test is evident here. This is a violation of Bangladesh Electricity Rules 1937, Clause 57(5) and Section 2.11.1.2 and 2.11.3 of BNBC-2006. Grounding is very vital for the operation of the system and protection of man/machine. If phase conductor fails, it will stop operation/production but in case of grounding failure, it could cause stop production/damage equipment and electric sock hazard to the workers.

NC 1.32: (C): Adequate illumination should be in front of Enclosures, which is violation of section 110.26(D)

NFPA70-2011. NC 1.33: (C): Multiple cables entered in one point either on Bus Bar or MCB, MCCBs. This is violation of section

312.5 (C) of NFPA70-2011.

NC 1.34: (B): Proper Working or as built electrical drawings of main distribution circuit and Floor levels circuits connecting electrical loads (machines/lights/cooling system etc.) should be available at site. Unavailability is a violation of Section 2.5.3.1 & 2.5.3.2 of BNBC-2006. With the help of proper electrical drawings, any


addition/deduction/isolation of loads can be done easily and any table-top decision can be made centrally taking consideration of safety, integrity and good productivity. Proper drawing is an engineering tool, and every system must have it.

NC 1.35: (B): DBs (BBT Control) should install at reachable height, and should be maximum 6 feet height. Violation of this rule refer to section: 2.7.5.6(a) of BNBC-2006 and NEC- 110.26(A)(3).

NC 1.36: (C): As per article 100 NFPA70-2011, Rainproof: Constructed, protected, or treated so as to prevent rain

from interfering with the successful operation of the apparatus under specified test conditions. Rain-tight: Constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions. Following places are not rainproof; water may drop on the equipment.

NC 1.37: (C): A cable, raceway, or box, installed in exposed or concealed locations under metal-corrugated sheet

roof decking, shall be installed and supported so there is not less than 38 mm (112 in.) measured from the lowest surface of the roof decking to the top of the cable, raceway, or box. A cable, raceway, or box shall not be installed in concealed locations in metal-corrugated, sheet decking type roof. This has been described more precisely in clause 300.4(E) NFPA70-2011.

NC 1.38: (C): Proper bushings (gland) are not used at cable entering point of Boards and panels. Moisture, dust

and vermin may enter in to boxes. This is a violation of section: 2.7.5.4(a) of BNBC-2006 and 110.12(A), 230, 312.5 NFPA70-2011.

NC 1.39: (C): Exposed Work-In dry locations, where not exposed to physical damage, conductors shall be

permitted to be separately enclosed in flexible nonmetallic tubing. The tubing shall be in continuous lengths not exceeding 4.5 m (15 ft) and secured to the surface by straps at intervals not exceeding 1.4 m (412 ) as directed in NFPA70 section 398.15.

NC 1.40: (B): Calibration/validation of all type of meters at Floor levels and LT room should be done periodically.

Calibration was never done after installation. Metering error of more than 3% not allowed in Bangladesh Electricity rules 1937, Clause 32(b).

NC 1.41: (B): Indicator lamps for some of the MDB/DB are not present or connected without any protective

device (Fuse/MCB). This is a violation of Section: 2.7.6.1 of BNBC-2006, 408.52 NFPA70-2011. NC 1.42: (B): Many Ampere meter and Volt meter are out of order (such as at MDB, LT Panel etc.). This is a

violation of Bangladesh Electricity Rules 1937, Clause 33. Ampere meters and voltmeters are the system monitor of the running system. Abnormal high amps indicates fault in the system and abnormal voltage (low/high) indicates abnormality in the system. If the meters are not correct then it could not reflect the actual situation of the system. As a result proper measures could not be taken in right time. All meters must be maintained correctly.

NC 1.43: (B):In front of few MDB/DB/SDBs there is no electrical graded rubber mat and in front of few other MDB/DB/SDBs non-graded and inadequate sized rubber mats used. This is a violation of Section 2.11.5.1 of BNBC-2006.

NC 1.44: (B): There is no instruction board found for restoration of persons suffering from electrical shock at any place in the factory. This is a violation of Bangladesh Electricity rules 1937, Clause 46. It is very essential that safety and first-aid instructions should be adequately displayed and promulgated.


NC 1.45: (B): There was no instruction board found in the factory for artificial respiration in case of electric shock. This is the violation of Bangladesh Electricity rules 1937, Clause 47. It is a very essential safety instruction and in many cases such awareness can save lives with simple actions.

NC 1.46: (B): Absent of Electrical Layout drawings at site are a violation of Section 2.5.3.5 of BNBC-2006. Proper

layout drawing is very important for the production oriented factory. A layout drawing should be prepared considering possible maximum loading/production capacity of a Floor area. Accordingly electrical infrastructure will have to be built. In such a case any addition or deduction can be done easily and safely. Proper layout drawing is an engineering tool, and every system must have it.

NC 1.47: (B): All Phase conductors, Neutral and Earth should follow the colour code. Violation of the rule refer to

section 310.120, 250.119 NFPA70-2011. Following DBs do not have appropriate color codes for the cables. NC 1.48: (B): AS per Electrical Testing Association ANSI/MTS-07 Thermographic Survey Suggested Action Based

on Temperature Rise. Probable Deficiency - Repair as Time Permits"- If difference is more than 10.0C (degrees centigrade) and up to 20.0C from measured Ambient Temperature.

NC 1.49: (B): Hand held tools used by the electricians are not double insulated. Hand gloves should be kept in

each Floor. Generator/Substation operator should use PPE. For safety, double insulated hand tools, PPE, hand gloves and earthling lids are required as per NFPA70 (E).

NC 1.50: (B): Lightening protection arrangement of a building is essential as per Section 2.9 of BNBC-2006.

Lightning protection is an important arrangement. Absent of proper LA may cause health hazards for the workers and destruction of machines and materials. Lightning protection is an important arrangement .Every Industrial installation must have it.

NC 1.51: (B): Phase, Neutral and Grounding are not same size in the DB is a violation of section 2.5.4.1 of BNBC-

2006. NC 1.52: (B): Indicator lamps for most of the LT-PANEL/MDB/DB/SDB connected without any protective device

(Fuse/MCB). This is a violation of Section: 2.7.6.1 of BNBC-2006. NC 1.53: (B): As per NFPA 70 clause 110.34, the entrance to all buildings, vaults, rooms, or enclosures containing

exposed live parts or exposed conductors operating at over 600 volts, nominal, shall be kept locked unless such entrances are under the observation of a qualified person at all times. Where the voltage exceeds 600 volts, nominal, permanent and conspicuous warning signs shall be provided, reading as follows: DANGER HIGH VOLTAGE KEEP OUT As per NFPA 70 clause 225.70 A permanent, legible warning notice carrying the wording DANGER HIGH VOLTAGE shall be placed in a conspicuous position in the following areas: (a) At all entrances to electrical equipment vaults and electrical equipment rooms, areas, or enclosures (b) At points of access to conductors on all high voltage conduit systems and cable systems (c) On all cable trays containing high-voltage conductors with the maximum spacing of warning notices not to exceed 3 m (10 ft.). Permanent legible signs shall be installed at isolating equipment warning against operation while carrying current, unless the equipment is interlocked so that it cannot be operated under load.


2. Generator: NC 2.1: (C): Periodical testing of grounding resistance has not been done for the generators. This is a violation of

Bangladesh Electricity rules 1937, clause 49 and 57. System grounding/Transformer grounding is very vital for the operation of the system and protection of man/machine. If phase conductor fails, it will stop operation/production but in case of grounding failure, it could cause stop production/damage equipment and electric sock hazard to the workers. Such a vital element needs periodical inspection and testing.

NC 2.2: (C): Generator frame earthing shall be two points separately. This is a violation of Bangladesh Electricity

rules 1937, Clause 57 (2).

3. Substation:

NC 3.1: (D): Combustible materials stored in the Substation. NC 3.2: (D): No safety Guard. NC 3.3: (C): Neutral and Earthing Cables not marked properly NC 3.3: (C): Transformer Locations.(a) Accessible. Transformers shall be accessible after installation. (b)

Secondary Conductors. Transformers shall be installed as near to the loads as practicable to keep the secondary conductors as short as possible. (c) Adjacent to Combustible Materials. Transformers shall be located so that adjacent combustible materials are not subjected to temperatures in excess of 90C (194F).

Electrical Safety Assessment of Cotton Club (BD) Ltd. Photographic Findings Page 19 of 106

A. D Need Immediate Correction

Summary: D- Cotton Club (BD) Ltd. SL Observation Picture References No. of Findings 1 Combustible materials kept near to the Electrical system A-19,20 2 2 Safety guard required A-13,15,21 3 3 Multiple Cables/Cables connected without lugs A-1,2,3,4,5,6,7,8,10,16,17 11 4 Phase separator needed A-2,6,7,11,14,18 6 5 Looping A-3,8,9,18 4 6 Splicing cable joint A-4,12 2

Category D A-01

Location GF/SS

Equipment Name COS-7

Observation Multi cables connect without lugs. May cause of loose connection heat and fire.

Required Action Need to connect them single with lugs.

Category D A-02

Location GF/SS

Equipment Name MDB-COOLING TOWER

Observation

Multi cables connect without lugs. May cause of loose connection heat and fire. No phase separator in MCCB.

Required Action Need to connect them single with lugs. Need to phase separator properly in MCCB.


Category D A-03

Location GF/SS

Equipment Name MDB-WASHING

Observation Multi cables connect without lugs. May cause of loose connection heat and fire. Looping cables in MCCB.

Required Action Need to connect them single with lugs. Need to connect them single.

Category D A-04

Location GF/SS

Equipment Name MDB-DYEYING-1

Observation Multi cables connect without lugs. May cause of loose connection heat and fire. Splicing cable joint.

Required Action Need to connect them single with lugs. Need to joint properly.

Category D A-05

Location GF/SS

Equipment Name MDB-DYEYING-3

Observation Multi cables connect without lugs. May cause of loose connection heat and fire.



Category D A-06

Location 1st Floor

Equipment Name DB-1

Observation Cables connect without lugs. May cause of loose connection heat and fire. No phase separator in MCCB.


Category D A-07

Location 2nd Floor

Equipment Name DB-1

Observation Cables connect without lugs. May cause of loose connection heat and fire. No phase separator in MCCB.


Category D A-08

Location 2nd Floor

Equipment Name DB-Office

Observation Looping cables in MCCB. Multi cables connect without lugs.

Required Action Need to connect them single. Need to connect them single with lugs.


Category D A-09

Location 2nd Floor

Equipment Name DB-Office

Observation Looping cables in MCCB.

Required Action Need to connect them single.

Category D A-10

Location 2nd Floor

Equipment Name DB-2

Observation Multi cables connect without lugs. May cause of loose connection heat and fire


Category D A-11

Location 3rd Floor

Equipment Name MDB-2

Observation No phase separator in MCCB.

Required Action Need to phase separator properly in MCCB.

Cotton Report 14 Jan 2014

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Transcript of Cotton Report 14 Jan 2014