Type 8BK20 Switchgear up to 24 kV with Withdrawable ... · 1) Additional interlocks that exceed the...

Type 8BK20 Switchgear up to 24 kVwith Withdrawable Circuit-Breakers

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Medium-VoltageSwitchgearCatalog HA 25.211999

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Supersedes: Catalog HA 25.21 · 1995

Type 8BK20 Switchgear up to 24 kV with WithdrawableCircuit-Breakers

Air-Insulated, Metal-Enclosed, Metal-CladSingle/Duplicate Busbar

© Siemens AG 1999

Medium-Voltage SwitchgearCatalog HA 25.21 · 1999

Application, FeaturesTypical uses 2 Personnel safety,Equipment reliability, operation 2 to 4

Technical DataElectrical data, dimensions 5 and 6Installation details 6 and 7Shipping details 8

Product RangeSingle busbar panels 9 to 11Duplicate busbar panels 12

Electrical DesignBasic panel design 13

Mechanical DesignHigh-voltage section 14 to 18Low-voltage section 19

StandardsStandards, specifications,guidelines 20 to 22

AppendixCatalog index 23

Conditions of sale and delivery, 24export regulations, trademarks, dimensions

Contents

1

Type 8BK20 Switchgear up to 24 kV with Withdrawable Circuit-Breakers

Application Features

8BK20 switchgear with withdrawable circuit-breakersfor indoor installation is suitable for:

� Rated voltages from 7.2 kV to 24 kV

� Rated short-circuit breaking currents from 31.5 kA to 50 kA

� Rated busbar normal currentsup to 4000 A

� Rated feeder normal currents up to 4000 A

Typical uses

� Power stations, transformer stations and switchingsubstations of public utilities

� Cement industry

� Automotive industry

� Iron and steelworks

� Rolling mills

� Mines

� Food and fiber industry

� Chemical industry

� Mineral oil industry

� Pipelines

� Offshore installations

� Electrochemicals

� Petrochemicals

� Railway power supplies

� Shipbuilding

� Diesel power stations

� Emergency power supplies

Personnel safety

Switching operations withdoor closed

Personnel safety is increasedby:• Opening and closing of the

switching device– In the disconnected or

connected position– Mechanically or electrically– With the door closed• Isolation by moving the

withdrawable part, manuallyor motorized, with the doorclosed

• Verification of safe isolationfrom supply. According toVDE 0105, Part 1, there arethree alternative methods:

– Closing of a make-proofearthing switch with the doorclosed

– Pole-by-pole testing with acapacitive voltage detectorwith the door closed

– Testing with conventionalvoltage testers to VDE 0681,Part 4, but with the dooropen

• Opening and closing of themake-proof earthing switchwith the door closed

– On the feeder and on thebusbar: manually

Interlocking of door/withdrawable part

The door is incorporated in theinterlocking concept as follows:• Opening is possible only

when the withdrawable partis locked in the disconnectedposition.

• The withdrawable part can bemoved from the disconnect-ed to the service positiononly when the door is closed

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Type 8BK20 Switchgear up to 24 kV

with WithdrawableCircuit-Breakers

Siemens HA 25.21 · 1999�3

Features

Personnel safety

Protection against electricshock and ingress of solidforeign bodies

8BK20 switchgear providesboth external and internalprotection. • External protection is

provided by– Complete enclosure of the

panels in all operating states• Internal protection is

provided by– Internal metal compart-

mentalization with enforced-operation shutters, optionalarc-resistant version of thebusbar compartment

– The inter-cubicle partitions;optional arc-resistant version

• Degree of protectionStandard version IP4X/IP3XD.Higher degrees of protection,such as IP31D, IP50 andIP51, can be obtained byadditional measures.

Arc-tested sheet-steelenclosure or compart-mentalization

8BK20 switchgear has beentested in accordance with the relevant standards forresistance to accidental arcingto ensure:• External protection

(personnel safety)• Optional resistance to

internal arcing (exceeding the scope of the standards),i.e. the effects of an arc arelimited as follows:

– Pressure-proof in relation toneighboring panels

– Pressure-proof from thewithdrawable part or theconnection compartment to the busbar compartment(applicable to rated currentsup to 2500 A only)

– Pressure-proof from thebusbar compartment to thewithdrawable part or connec-tion compartment (applicableto rated currents up to 2500 A only)

• Pressure switch– Limits arc duration to a

maximum of 100 ms– Minimizes the damage and

effects of an arc– Recommended use with

grading times >0.5 s– A function check of the

pressure switch is possiblewithout interruptingoperation

– Triggers the feeder circuit-breaker if the pressureswitch responds

Switchgear interlocking

All interlocks are mechanicalwith preventive, key-operatedaccess shutters, i.e.:• Operating levers can only be

inserted when the inter-locking conditions are fulfilled

• This prevents impermissibleoverstraining of the interlock-ing mechanisms

Electric strength

Adequate electric strength of8BK20 switchgear is assuredby:• Sufficiently large air gaps

between phases and to earth• Suitable electrode formThese design features allow all conductor insulation to bedispensed with entirely.

Highest level ofindependence of climate and environment

This is provided by:• Ribbed insulators in cast

resin, with high resistance to pollution

• Total enclosure under alloperating conditions

Maintenance

Minimum maintenanceeffort is assured by:• Total enclosure under all

operating conditions• Use of proven, mainte-

nance-free vacuumswitching devices

Availability

Easy procurement of partsfor extensions and repairsthrough the use of:• Standard insulators• Standard instrument

transformers• Standard vacuum

switching devices• Standard copper sections• Detachable low-voltage

compartment up to 15 kVwith plug-in connectiontechnology

Equipment reliability

8BK20 switchgear withwithdrawable circuit-breakers

1)Additional interlocks that exceed the scope of VDE 0670 Part 6 or IEC 60 298.

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4�Siemens HA 25.21 · 1999

Operation

Moving a withdrawable partinside a panel

Little effort is required by handor motor to move a with-drawable part inside a panelwith the aid of:• A spindle mechanism• Ball-bearing rollers

Moving a withdrawable partoutside a panel

A withdrawable part is light andeasy to move outside a panel: • With a central service truck

(see also adjacent figures)• By one man• Without tools• Regardless of floor surface

Sequence for moving thewithdrawable part

• Move the withdrawable partinto the disconnectedposition

• Open the door• Unplug the low-voltage

connector• Unlock the withdrawable part

(unintentional removal of thewithdrawable part is prevent-ed by an additional interlock)

• Bring up the central servicetruck and lock it onto thepanel (additional interlock isthen overridden)

• Pull out the withdrawablepart onto the truck as far as it will go (it cannot fall)

• Detach the central servicetruck and the withdrawablepart from the panel

Remote control

Electric remote control, e.g.from a central control room,can be provided for thefollowing functions:• Moving a motorized

withdrawable part into thedisconnected or connectedposition

• Opening and closing of theswitching device

Local manual operation isalways ensured.

Features

Central service truck formoving the withdrawablepart

• Withdrawable part can belowered to the floor

• Collapsible for space-savingstorage

• Withdrawable part locksautomatically onto the trunk

• Lifting arms can be crankedup to maximum heights

– 1200 mm for 7.2/12/15 kVinstallations

– 1430 mm for 17.5/24 kVinstallations

• Large, swiveling wheels • Suitable for all withdrawable

parts

Verification of safe isolationfrom supply

With a voltage detector con-forming to the LRM system(Low Resistance Modified) to E VDE 0682 Part 415:• Pole-by-pole verification of

safe isolation from supply• Detector suitable for

continuous operation • Safe to touch• Routine-tested• Measuring system and

voltage detector can betested

• Voltage detector flasheswhen high voltage is applied

Interlocking conditions

The following operations canbe carried out as soon as thefollowing standard interlockingconditions have been met:• Moving the withdrawable

part from the disconnectedto the connected position:

– Low-voltage connectorplugged in

– High-voltage door closed 1)– Circuit-breaker in the OPEN

position– Make-proof earthing switch

in the OPEN position 1)• Moving the withdrawable

part from the connected tothe disconnected position:

– Circuit-breaker in the OPENposition

• Operating the circuit-breaker:withdrawable part in theinterlocked end position

• Operating the make-proofearthing switch:

– Withdrawable part in theinterlocked disconnectedposition 1)

• Opening the high-voltagedoor:

– Withdrawable part in theinterlocked disconnectedposition 1)

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Collapsed

Central service truckVerification of safeisolation from supply

Legend

–C1

Capacitor integrated in current transformer or in post insulator

–C2

Capacitor of the connectingcables and of the voltagedetector to earth

–HVoltage detector, plug-in

ULE

Voltage between conductorand earth

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Siemens HA 25.21 · 1999�5

Technical Data

Electrical data

Withdrawable vacuumcircuit-breaker panel

Disconnector-link panel

Sectionalizer panel

Busbar connection panel,types I and II

Rated voltage kV 7.2 12 15 1) 17.5 24

Width mm 1800 1800 1800 1000 1000

Rated short-time power-frequency withstand voltage kV 1120 1128 1136 1138 1150

Rated lightning impulse withstand voltage kV 1160 1175 1195 1195 1125

Rated short-circuit breaking current max. kA 1150 1150 1150 1125 1125

Rated short-time withstand current 1 s max. kA 1150 1150 1150 1125 1125

3 s max. kA 1140 1140 1140 1125 1125

Rated short-circuit making current/ max. kA 1125 1125 1125 1163 1163rated peak withstand current

Rated normal current of busbars max. A 4000 4000 4000 2500 2500

Rated normal current of feeders max. A 4000 4000 4000 2000 2000

Rated voltage kV 7.2 12 15 1) 17,5 24

Width mm 1800 1800 1800 1000 1000



Rated short-time withstand current 1 s max. kA 50/20 2) 150/20 2) 150/20 2) 25/16 2) 25/16 2)

3 s max. kA 40/20 2) 140/20 2) 140/20 2) 25/16 2) 25/16 2)

Rated short-circuit making current/ max. kA 25/50 2) 125/50 2) 125/50 2) 63/40 2) 63/40 2)rated peak withstand current


Rated normal current of feeders max. A 1630 1630 1630 1630 1630

Dimensions of HV HRC fuses mm 1292 1292 1292 1442 1442

Withdrawable vacuumswitch panel

Rated voltage kV 7.2 12 15 1) 17.5 24

Width mm 1800 1800 1800 1000 1000



Rated short-time withstand current 1 s max. kA 1150 1150 1150 1125 1125

3 s max. kA 1140 1140 1140 1125 1125

Rated peak withstand current max. kA 1125 1125 1125 1163 1163


Metering panel

Rated voltage kV 7.2 12

Width mm 1800 1800

Rated short-time power-frequency withstand voltage kV 1120 1128

Rated lightning impulse withstand voltage kV 1160 1175

Rated short-time withstand current 1 s max. kA 1150 1150

3 s max. kA 1140 1140

Rated short-circuit making current/ max. kA 1125 1125rated peak withstand current

Rated normal current of busbars max. A 4000 4000

Earthing transformer panel

1) Please inquire about 17.5 kV with corresponding insulating capacity. 2) When used without HV HRC fuses.

Room planning

Pay attention to theinformation in theadjacent figures andtables for details ofplanning theswitchgear room.

Legend

1 8BK20 switchgear

2 Panel subdivision

3 Switchgear termination

4 Front operating aisle

5 Distance from wall

6 Building wall2


Dimensions Installation details

Technical Data

6�Siemens HA 25.21 · 1999

Panel dimensionsRated voltage kV 7.2 12 15 1) 17.5 24

Width mm 1800 1800 1800 1000 1000

Height Standard mm 2050 2050 2050 2250 2250

With additionally mm 2450 2450 2450 2650 2650mounted low-voltagecompartment

With cable connection mm 2550 2550 2550 2750 2750to the busbars

With de- ≥ 20 kA mm 2050 2050 2050 2530 2530flectingplates fitt- ≥ 25 kA mm 2450 2450 2450 2530 2530ed to complywith criteria1 to 6, for arc fault durationof 1s

Depth Single Connection mm 1650 1650 1650 2025 2025busbar at front,panel wall mounting 2)

Connection mm 1775 1775 1775 2150 2150at front,free-standing 2)

Connection mm 1775 1775 1775 2150 2150at rear,free-standing 2)

Duplicate Back- mm 3560 3) 3560 3) 3560 3) 4310 4310busbar to-panel back

arrangement

Useable internaldimensions of the low-voltage compartment

Rated voltage kV 7.2 12 15 1) 17.5 24

Width mm 800 800 800 1000 1000

Standard Width mm 680 680 680 1880 1880compartment Height mm 680 680 680 1680 1680

Depth mm 450 450 450 1450 1450

Additional Width mm 680 680 680 1880 1880top box Height mm 380 380 380 1380 1380

Depth mm 420 420 420 1420 1420

Useable internal heightfor high-voltage cables

Distance betweencenters of lug hole andcable brackets.

Rated voltage kV 7.2 12 15 1) 17.5 24

Width mm 800 800 800 1000 1000

Standard Connection approx. 425 425 425 1520 1520version at front mm

Connection approx. 600 600 600 1650 1650at rear mm

Standard Connection approx. 625 625 625 1720 1720version at front mmwith deeper Connection approx. 800 800 800 1850 1850bottom plate at rear mm

1) Please inquire about 17.5 kV with correspondinginsulating capacity.

2) See also section entitled “Panel connection”, page 19.

3) Depth of 3960 mm for rated short-circuit breakingcurrent of 50 kA.

33≥100

33≥50

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Siemens HA 25.21 · 1999�7

Installation details

Room dimensions (min. room height 2800 mm 1))(see also adjacent tables)

Single-row arrangement (plan view)for single busbar installations

Face-to-face arrangement (plan view)for single and duplicate busbar installations

Back-to-back arrangement (plan view)for duplicate busbar installations

Single-row and face-to-face arrangement

Con- Connec- Rear- Arrange- Dimensionnec- tion com- mounted menttion partment pressure a b c dposi- pressure relief ducttion relief mm mm mm mm

Rated voltage 7.2/12/15 kV

Front Downwards None Wall ≥1100 ≥1300 1650 150To rear None Wall ≥1100 ≥1300 1650 150Upwards With Wall/free ≥1100 ≥1300 1775 ≥50 4)

Rear Upwards With Free ≥1100 ≥1300 1775 ≥500

Back-to-back arrangement

Con- Connec- Rear- Arrange- Dimensionnec- tion com- mounted menttion partment pressure a cposi- pressure relief ducttion relief mm mm


Front Upwards With Free ≥1100 1650

Floor loading

Fixing

The switchgear can be fixed by:• Bolting to the foundation rails• Welding to the foundation rails

Foundation rail position

The position of the foundation railsis fixed by fixing points in the baseframe of the panels. Please inquirefor further details.

Single busbar or duplicate busbar Duplicate busbar panels in back-to-backpanels in face-to-face arrangement, equipped with two circuit-breakersarrangement

Weight of each single panel Weight


700 to 1200 kg 1400 to 2000 kg

Rated voltage 17.5/24 kV

800 to 1000 kg 1600 to 2000 kg


Front Upwards With Free ≥1400 2025

Technical Data


Front Downwards None Wall ≥1400 ≥1500 2025 150To rear None Wall ≥1400 ≥1500 2025 150Upwards With Wall/free ≥1400 ≥1500 2150 ≥50

Rear Upwards With Free ≥1400 ≥1500 2150 ≥500

1) Please inquire if rooms are low.2) Please inquire about 8BK20 systems up to 15 kV with

a rated short-circuit breaking current of 50 kA.3) A 1200 mm wide operating aisle is needed to move

the withdrawable part.

4) For switchgear with a rated short-circuit breaking current of 50 kA at 7.2/12/15 kV onlyconnection at front and with rear pressure relief duct is feasible.The rear distance from wall must be at least 500 mm. Termination walls at the sides for this distance from wall must be provided on site.

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33≥100

≥50

33≥50

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8�Siemens HA 25.21 · 1999

Packing

Shipping details

Technical Data

Transport units

The following factors should betaken into account whendeciding on the size oftransport units to be employed:• Transport facilities on site• Transport dimensions and

weights• Size of building doorways

Transport dimensions andweights

Transport unit Rated voltage and width

7.2/12/15 kV 17.5/24 kV800 mm 1000 mm

Single busbar panels or single panels max. 3 panels max. 3 panelsof a duplicate busbar installation forface-to-face arrangement

Duplicate busbar panels for back-to-back max. 2 double panels max. 2 double panelsarrangement

Destination Rated Number of panels Dimensions, volumes and weightsvoltage per transport

Width Depth Height Volume Gross weightunitm m m m3 approx.kg

Connection at front, without rear-mounted pressure relief duct

7.2/12/15 kV 1 panel 1.06 1.90 2.25 14.53 17702 panels 1.90 1.90 2.25 18.12 15403 panels 2.66 1.90 2.25 11.37 2300

17.5/24 kV 1 panel 1.26 2.27 2.45 17.00 11002 panels 2.27 2.27 2.45 12.63 22003 panels 3.26 2.27 2.45 18.13 3250

Connection at front or rear, with rear-mounted pressure relief duct



Back-to-back arrangement 1)

7.2/12/15 kV 1 double panel 1.06 4.00 2.30 19.75 13902 double panels 1.90 4.00 2.30 17.48 2780

17.5/24 kV 1 double panel 1.26 4.70 2.55 15.10 20502 double panels 2.27 4.70 2.55 27.10 4100

Germany and Europe

Connection at front, without rear-mounted pressure relief duct



Connection at front or rear, with rear-mounted pressure relief duct



Back-to-back arrangement 1)

7.2/12/15 kV 1 double panel 1.06 4.00 2.46 10.43 19502 double panels 1.90 4.00 2.46 18.70 3460

17.5/24 kV 1 double panel 1.26 4.70 2.70 16.00 27502 double panels 2.27 4.70 2.70 28.81 5000

Overseas

Destination Transport by Type of packing

Germany/ Road and Panels on pallets and open packing with polyethyleneEurope rail sheets covering the panels

Overseas Ship Panels on pallets in sealed crates with upper and lowerpolyethylene sheets, welded together, with desiccant bagsand sealed wooded floor; max. storage: 6 months

1) The gross weight increases byabout 180 kg when there are 2withdrawable circuit-breakers in apanel. The depth will be increasedby 0.4 m for switchgear with ratedshort-circuit breaking current of 50 kA at 7.2/12/15 kV. The volumewill change accordingly.

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Siemens HA 25.21 · 1999�9

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Single busbar panels

Product Range

Withdrawable panel

1) See also page 19 for details of voltage measure-ment of the panel connection.

2) Details refer to conventional Siemens single-coresealing ends for XLPE cables or other makes withsimilar dimensions.

Voltagetransformeron busbars

Make-proofearthingswitch on busbars

Bus riser

Cableconnection at top

Spurconnection at top

Panelventilation

or

or

or

or

or

Withdrawablevacuumcircuit-breaker

Withdrawablevacuumcircuit-breaker1)

Withdrawablevacuumswitch

Disconnectorlink

or

or

or

Currenttransformer

Voltagetransformer

Make-proofearthingswitch

Cable sealing ends 2)max. 4 x 500 mm2

per phase

and/or

Barsor

and/or

and/or

Busbarfittings

Withdrawable parts

Connectionfittings

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Product Range

Sectionalizer(Mirror-image arrangementalso possible)

10�Siemens HA 25.21 · 1999


Make-proofearthingswitch onbusbars

Panelventilation

or

or




Disconnectorlink

or

or

or or

Currenttransformer

Busbarfittings

Withdrawable parts

Connectionfittings

Withdrawablepanel

Bus riser panel,type I

Currenttransformer

Meteringsection

Voltage transformer on busbars

Make-proof earthing

switch on busbars



Panelventilation

or

or




Disconnectorlink

1) See also page 19 fordetails of voltagemeasurement of thepanel connection.

or

or

or or or

or

or

Currenttransformer

Busbarfittings

Withdrawable parts

Connectionfittings

Withdrawablepanel

Bus riser panel,type II

Currenttransformer

Voltagetransformer

Currenttransformerand voltagetransformer

Voltagetransformerand currenttransformer


Make-proofearthing

switchon busbars

Busbar fittings

Connectionfittings

Busbarfittings

Connectionfittings

Withdrawable part

1)

1)

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Metering panel, withdrawable type

Earthing transformer panel

Busbar connection panels

Type I

Product Range



Bus riser

Cableconnection at top

or

or

or

Meteringsection

Busbarfittings

Withdrawable part

Type II



Cable sealingends,max. 4 x 500 mm2

per phase

Barsor

and/or

or

Currenttransformer

Voltagetransformer

and/or

Meteringsection

Busbarfittings

Connectionfittings

Withdrawable part



Cable sealing ends,max. 12 x 500 mm2

per phase

Barsor

and/or

or

Currenttransformer

Voltagetransformer

and/or

Busbarfittings

Connectionfittings

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12�Siemens HA 25.21 · 1999

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Duplicate busbar panels

Product Range

8BK20 duplicate busbar switchgear isassembled from therange of single busbarpanels. They can be arrangedeither:• Face-to-face or • Back-to-back

Face-to-face arrangement

• Panels from the singlebusbar product range

• The two rows are linked bycables or bars underneaththe panels

• Bus coupling, comprising– Withdrawable panel– Busbar connection panel


• Panels from the singlebusbar product range

• The two rows are linked bybars inside the panels

• Bus coupling, comprising:– Withdrawable panel, but only

with current transformer anda special bus coupling andriser panel

– Fittings on the busbars as forsectionalizing a single busbarinstallation

Withdrawable panel Withdrawable panel

Withdrawable panel Withdrawable panel

SS1 = Busbar system 1SS2 = Busbar system 2

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Siemens HA 25.21 · 1999�13

Basic panel design

Electrical Design

Single busbar panel

Single-row arrangement1 Low-voltage compartment2 Withdrawable vacuum

circuit-breaker3 Cable connection4 Voltage transformer5 Make-proof earthing switch6 Current transformer7 Busbars8 Rear-mounted pressure

relief duct (option)

Duplicate busbar panels

Face-to-face arrangement2 to 8: See above9 Cable or busbar connection

between both panels under-neath the installation (in thecable basement)

10 Special connection bracket

Back-to-back arrangement1 to 8: See above

11 Busbars between bothpanels within the enclosures

Single-row arrangement

Face-to-face arrangement


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Withdrawable partin disconnectedposition

Withdrawable partin connectedposition

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High-voltage section

Mechanical Design

Design• Bolted steel profiles and

sheets• Rails for accommodating

the withdrawable part• Base cover optionally

available• Surface treatment– Steel profiles and sheets

galvanized– Doors and front frame

powder-coated, color grey (RAL 7032)

– Switchgear side wallspowder-coated, color grey (RAL 7032)

Design• Galvanized sheet steel• With cutout for

continuous busbars• Bushing plate with cast

resin bushings fortransverse isolation ofbusbars optionallyavailable

• Degree of protectionwith respect toneighboring panels:IP4X/IP3XD

• Optionally in an arc-resistant design

Frame

Panel with pressure relief flaps

14�Siemens HA 25.21 · 1999

Partitions

Partitions isolate neigh-boring panels from oneanother

Design• Galvanized sheet steel• Locked to prevent

unintentional openingfrom the outside

• Separate pressure reliefflaps for busbar, with-drawable part andconnection compart-ments

Pressure relief

When the pressure reliefflaps are opened, theexcess pressure in thepanel in the event of an arcoccurring is dissipated.

Panel with partition removed

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Panel with partition

Steel profiles

Rail for with-drawable part

Cutout forcontinuousbusbars

Partition

Pressurerelief flaps

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• Upper and lower matingcontacts fixed in cup-typebushings

• Enforced operated metalshutters for opening orclosing the cup-typebushings when movingthe withdrawable part

• Metal shutters can belocked when the with-drawable part is rackedout

• Upper barrier (access to the busbar) or lower barrier (accessto the cable) can beunscrewed independ-ently of one another

• Optional resistance tointernal arcing of thebusbar compartment

Compartmentalization

Design• Bolted galvanized steel

sheets subdivide thepanel into

– Busbar compartment– Withdrawable part

compartment– Connection compartment• Degree of protection

between the individualcompartments:IP4X/IP3XD

• Thanks to integrated cup-type bushings, completecompartmentalizationeven when thewithdrawable part is inthe connected position

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Mechanical Design

• Door handle– After the lock has been

unlocked, the door isopened by lifting or isclosed by lowering(taking the interlockingconditions into account)

• CLOSED/OPEN push-button of the switchingdevice

– CLOSED/OPEN switch-ing when the withdrawa-ble part is in the connec-ted position:When the door is closed,mechanically with push-button and tiltableextension mechanism forpushbutton actuation

– CLOSED/OPEN switch-ing when the withdrawa-ble part is in the discon-nected position:When the door is closedmechanically by meansof pushbuttons (directactuation)

• Lever for tilting over theextension mechanism(see adjacent figure foroperating principle)

• Openings for with-drawable part actuation

– For the hand crank formoving the withdrawablepart (taking theinterlocking conditionsinto account)

– For the interlocking keyof the withdrawable part(same key as for thehigh-voltage door).

High-voltage door

• Inspection window (1)– Pressure-proof– For checking the

withdrawable partposition

– For reading off theCLOSED/OPEN positionindicator of the switchingdevice, of the operatingcycle counter and of the “closing springcharged” indication

• Lock (2)– For locking or unlocking

the high-voltage door(taking the interlockingconditions into account)with an interlocking key

• Hand crank opening– Hand crank for charging

the operating mechanismsprings of the switchingdevice

– Opening closes auto-matically

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Metal shutters opened (no operation)

Withdrawable partcompartment

High-voltage door(e.g. for panel with 3AH vacuum circuit-breaker)

Tiltable extension mechanismfor pushbutton actuation

Metal shutters closed

High-voltage door

Inspection window (1) for checking the withdrawable part position

Operating mechanism box of the switching device

Pushbutton actuation in the high-voltage door

Extension mechanism

Actuation of the pushbuttons on the switching device

Lock (2)

CLOSED/OPEN pushbuttons

Door handle

Lever for tilting over theextension mechanism

Inspection window (1) forreading off the indicators

Openings for withdrawable partactuation

Opening for hand crank

CLOSED/OPEN

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16�Siemens HA 25.21 · 1999


Mechanical Design

Busbars(commercially availableflat copper)

Busbar mounting• On commercially

available cast-resininsulators

• Busbars bolted,length according topanel width

Compartmentalization• Metal compartment-

alization to the with-drawable part andconnection compart-ments with degree of protectionIP4X/IP3XD

• Busbar compartmentcontinuous through-out the entire instal-lation, transversecompartmentalizationwith respect toneighboring panelspossible

• Resistance to internalarcing of the busbarcompartmentoptionally possible

Insulation• Busbar insulation not

necessary becausedielectric strength isalso guaranteed with-out insulation

• Busbar insulation upto the upper matingcontacts optionallypossible

Busbar fittings (options)The following fittings on thebusbars – shown in theadjacent figure with referenceto the example of with-drawable vacuum circuit-breaker panels – are optionallyavailable without detrimentallyinfluencing pressure relief:

4MR voltage transformer • Cast-resin insulated• Up to 3 x one-pole or

2 x two-pole

Make-proof earthing switch• Manually operated• Optionally lockable or

electromagnetically locked

Bus riser• Rated normal current in

accordance with the max.rated normal current of thebusbar

• Connecting bars mounted on3 post insulators

• Necessary bar duct can bemodified

Cable connection at top• Max. 2 x 500 mm2 single-

core XLPE cables per phase1)• With cable connection

compartment and cablebrackets

Spur panel connection at top• Max. 2 x 500 mm2 single-

core XLPE cables per phase1)• Cable connection within the

panel, with cable brackets

1) Details refer to conventionalSiemens sealing ends or othermakes with similar dimensions.

Busbarcompartment

R-HA

25-2

94 e

ps

5



Siemens HA 25.21 · 1999�17


Panel connection

• Connection of cablesor bars to currenttransformers or postinsulators

• Connection variantsor types of instal-lation are as shownin the illustrations

• Earthing and short-circuiting via earthingswitch directly at thepoint of connection

• Fixed-mountedvoltage transformerswithin the currenttransformer protection zone

HA25

-254

7a e

ps

Mechanical Design

Panel connection fittings(options)The following optional fittingsare available for panel con-nection according to therelevant project planningdocumentation:

Connection• Connection of max.

4 x 500 mm2 single-coreXLPE cables per phase withSiemens sealing ends orother makes of similar size

• Or connections for plug-in,shock-proof sealing ends,including floor plate

• Or connection for bars:Flat copper bar withbushings, optionally withfloor plate or fully insulatedbars including floor plate

4MA post-insulator currenttransformers• Cast-resin insulated• Narrow design to DIN 42600• Max. 3 units

4MR voltage transformers• Cast-resin insulated• Max. 3 x one-pole or

2 x two-pole• Fixed-mounted, without

primary fuses• Withdrawable, optionally with

primary fuses, voltage pickoffon the circuit-breaker, auto-matic earthing of primaryterminals or isolation ofsecondary circuits duringaccess to voltage trans-formers

Make-proof earthing switch• Manually operated• Additional to standard locking

of earthing switch/with-drawable part, optionallylockable or electromagnet-ically locked

Surge arresters or limiters• Surge arresters for protecting

the switchgear againstexternal overvoltages

• Limiters for protecting theloads against switching over-voltages

• Max. 3 units

Connectioncompartment

Connection from front

Connection from rear

R-HA

25-2

95 e

psHA

25-2

548a

eps

5



Mechanical Design

• Fitted with a vacuumcircuit-breaker featuring aspring stored-energyoperating mechanism

Withdrawable vacuumcircuit-breaker section(See page 5 for technicaldata)

• Fitted with a vacuumswitch featuring a springstored-energy operatingmechanism

• Also optionally with HVHRC fuses

Withdrawable vacuumswitch section(See page 5 for technicaldata)

• Performs a disconnectorfunction

• Fitted with copper links• Locking preferably with a

padlock

Withdrawabledisconnector-link section(See page 5 for technicaldata)

• Fitted with 4MR voltagetransformers, cast-resininsulated, Max. 3 x one-pole or 2 x two-pole

• Also optionally with 6.3 Aprimary fuses

Withdrawable meteringsection(See page 5 for technicaldata)

18�Siemens HA 25.21 · 1999

R-HA

25-2

28 e

ps

Chassis

Carriagemechanism

R-HA

25-2

29 e

ps

Chassis

Carriagemechanism

R-HA

25-2

31 e

ps

Chassis

Carriagemechanism

R-HA

25-2

32 e

ps

Chassis

Carriagemechanism

5



Siemens HA 25.21 · 1999�19

Low-voltage section

Mechanical Design

Low-voltage compartment

• For accommodating thedevices for protection,control, measuring andmetering, e.g. bay controllerSIPROTEC 4 type 7SJ62

• Shock-proof partitioning from the high-voltage section

• Pressure-resistantpartitioning from the high-voltage section

• Low-voltage compartmentcan be removed (onlypossible for installations upto 15 kV) thanks to plug-inring and control cables

• Door optionally withinspection window

• Additional built-on low-voltage compartmentpossible

• See page 6 for details ofuseful internal dimensions

Low-voltage cables

• Withdrawable section controlcables via 64-pole plugconnector, flexible cables in ametal conduit

• Control cables of the panelare flexible and have metalliccovers

• Connection from with-drawable part and panelwiring to the low-voltagecompartment by means of10-pole module connectors

• Ring cables with plug-inconnections between panelsfor installations up to 15 kV

Solid-state HMI(human-machine interface)

Bay controller SIPROTEC 4type 7SJ62 for control andprotection

Features1 LCD for process and

equipment data, e.g. for: – Measuring and metering

values– Binary data for status of

switchpanel and device– Protection data– General signals– Alarm2 Keys for navigation in menus

and for entering values3 Seven programmable LEDs

with possible application-related inscriptions, for indi-cating any desired processand equipment data

4 Four programmable functionkeys for frequently per-formed actions

Door of the low-voltagecompartment

Bay controller SIPROTEC 4 type 7SJ62

Low-voltage compartment with fittings (example)

R-HA

25-0

98a

eps

R-HA

25-2

91ep

sR-

HA25

-292

eps

3

4

2

1

6


20�Siemens HA 25.21 · 1999

Standards

Standards, specifications, guidelines

Standards

Type 8BK20 switchgear forindoor installation complieswith the following validstandards:

In accordance with theharmonization agreementreached by the countries of theEuropean Community, theirnational standards conform toIEC 60 298.

Service locations

Type 8BK20 switchgear can beused as indoor installation inaccordance with VDE 0101• Outside lockable electrical

service locations at placeswhich are not accessible tothe public. Enclosures ofswitchgear can only beremoved with tools.

• Inside lockable electricalservice locations. A lockableelectrical service location is aplace outdoors or indoorsthat is reserved exclusivelyfor housing electrical equip-ment and which is keptunder lock and key. Access isrestricted to authorized per-sonnel and persons whohave been properlyinstructed in electricalengineering. Untrained orunskilled persons may onlyenter under the supervisionof authorized personnel orproperly instructed persons.

Definition

“Make-proof earthingswitches” are earthingswitches that have a short-circuit making capacity (VDE 0670 Part 2).

Insulating capacity

• The insulating capacity isverified by testing the switch-gear with rated values ofshort-time power-frequencywithstand voltage andimpulse withstand voltageaccording to VDE 0670 Part1000 or IEC 60 694 (seeadjacent table):

• Rated values are referred tosea level and to normalatmospheric conditions (1013 h Pa, 20 °C, 11 g/m3

humidity in accordance withVDE 0111 and IEC 60 071).

• The insulating capacitydecreases with increasingaltitude, but is not taken intoaccount by the standards andspecifications up to a sitealtitude of 1000 m.

Rated Rated short-time power- Rated lightning impulsevoltage frequency withstand voltage withstand voltage(rms) (rms) (peak)

For Between For Betweenisolating phases and isolating phases anddistances to earth distances to earth

kV kV kV kV kVIEC VDEStandard Standard

17.2 23 20 170 160

12,0 32 28 185 175

15,0 39 36 105 195

17.5 45 38 110 195

24,0 60 50 145 125

IEC 60 694 VDE 0670 Part 1000

IEC 60 298 VDE 0670 Part 6

IEC 60 298 VDE 0670 Part 6,Appendix AA Appendix AA

IEC 60 129 VDE 0670 Part 2

IEC 60 265-1 VDE 0670 Part 301

IEC 60 420 VDE 0670 Part 303

IEC 60 056 VDE 0670 Parts 101 to 107

IEC 61243-5 E VDE 0682 Part 415and EN 61243-5 (E)

IEC 60 529 VDE 0470 Part 1

IEC 60 071 VDE 0111

Resistance to internal arcfaults

• Tests for verifying resistanceto internal arc faults shouldestablish proper protectionfor operating personnel.

• Tests for resistance tointernal arc faults can beagreed between the ownerand manufacturer inaccordance with VDE 0670Part 6 or IEC 60 298.

• The tests must be performedin accordance with VDE 0670Part 6, Appendix AA or IEC60 298, Appendix AA.

• Type 8BK20 switchgearconforms to the criteria ofthe above standards andspecifications

– Criteria 1 to 3 and 6 in thestandard version

– Criteria 1 to 6 with additionalmeasures

For site altitudes above 1000 m,the adjacent correction factor ais recommended, depending on the actual site altitude abovesea level.

• Definitions of criteria:– Criterion 1

Correctly secured doors,covers etc. do not open.

– Criterion 2Parts which may cause ahazard do not fly off.

– Criterion 3No holes in the freelyaccessible external parts ofthe enclosure as the result ofburning in or tearing open.

– Criterion 4Vertically arranged indicatorsdo not ignite.

– Criterion 5Horizontally arrangedindicators do not ignite.

– Criterion 6The effectiveness of theearth connection must not bedetrimentally influenced.

• Resistance to internal arcfaults can be provided overand above the requirementsof the standards and specifi-cations mentioned before.

Rated short-time power-frequencywithstand voltage to be selected

Rated short-time power-frequency withstand voltage (VDE 0670 Part 1000/IEC 60 694)

1.1 · a≥

Rated lightning impulse withstandvoltage to be selected

Rated lightning impulse withstand voltage (VDE 0670 Part 1000/IEC 60 694)

1.1 · a

Site altitude above sea level 3000 mRated voltage of switchgear 12 kVRated lightning impulse withstand voltage (VDE 0670 Part 1000/IEC 60 694) 75 kV

Rated lightning impulse withstand voltage to select = 75 kV = 93 kV1.1 · 0.73

Result:According to the above table, 17.5 kV switchgear should be selected.

Example

≥

500040003000200010000 m

0.9

0.8

0.7

0.6

0.1

0

1

HA25

-250

3 ep

s

Cor

rect

ion

fact

or a

Site altitude above sea level

6



Siemens HA 25.21 · 1999�21

Standards

Conditions in switchgear rooms

Room climate 1) Ambient Relative Condensation Special ambient Additionalaffecting the temperature humidity conditions measuresswitchgear needed

Climate class I1 + 15 to 5 to None None –+ 40 °C 85%

Climate class I2 – 25 to 10 to Occasionally None Yes+ 55 °C 100% once a month Blown sand, dust, small animals Yesfor 2 hours

Climate class I3 – 25 to 10 to Frequently None Yes+ 70 °C 100% once a day Blown sand, dust, small animals Yesfor 2 hours

Dripping water due to ceiling Yescondensation (not harmful) to VDE 0470 Part 1 or IEC 60 529

Areas subject Sulfur dioxide (SO2) ≥ 2 ppm Yesto chemical Hydrogen sulfide (H2S) ≥ 1 ppm Yespollution Hydrochloric acid (HCl) ≥ 3 ppm Yes

Ammonia (NH3) ≥ 15 ppm YesNitric oxides (NO2) ≥ 2 ppm YesChloride deposit (Cl–) (saline fog) ≥ 2 mg/dm2 Yes


Current-carrying capacity

• According to VDE 0670 Part 6or Part 1000, IEC 60 298 orIEC 60 694, current-carryingcapacities are referred to thefollowing ambienttemperatures:

– Maximum of 24-hour mean + 35 °C

– Maximum + 40 °C• The current-carrying capacity

of the panels and busbarsdepends on the ambienttemperature outside theenclosure.

• In the enclosed panels, thecurrent-carrying capacity canbe partly reduced by therestricted ventilation. It canbe increased by:

– Using a circuit-breaker with ahigher rated current

– Through-ventilation, i.e. prod-proof ventilation slits in thehigh-voltage door and in thetop cover plate

– Forced ventilation, i.e. prod-proof ventilation slits in thehigh-voltage door in conjunc-tion with a fan on the topcover plate

Climate and ambientconditions

Type 8BK20 switchgear, ifnecessary with additionalmeasures, can be used in thefollowing climate classes andunder the following ambientconditions:• Ambient conditions– Natural pollutants– Chemically active pollutants– Small animals• Climate classes I1, I2, I3

The climate classes arebased on IEC 60 721-3-3 andIEC 60 721-3-4 and aredefined as follows:

Withdrawable sectionpositions

There are three differentpositions for the withdrawablesections of type 8BK20switchgear as defined in VDE 0670 Part 6 or IEC 60 298:• Service position– In this position, the switching

device establishes a con-nection between the busbarsand the panel connection.

– The low-voltage connector isplugged in.

• Disconnected position– In this position, segregation

is ensured, i.e. arcingpossible only against earth.

– The low-voltage connectorcan be either plugged in ordisconnected.

• Test position– The low-voltage connector is

plugged in.

– Climate class I1Rooms in buildings with goodthermal insulation or highthermal capacity, heated orcooled: normally only thetemperature is monitored,e.g. in normal living rooms,offices, shops, tele-communications exchanges,storage rooms for sensitiveproducts.

– Climate class I2Rooms in buildings with poorthermal insulation or lowthermal capacity, heated orcooled, without temperaturemonitoring; heating orcooling subject to failure overseveral days, e.g. unattendedrelays, booster or trans-former stations, stables,motor vehicle repair shops,manufacturing rooms forunfinished products, hangars.

– Climate class I3Rooms in buildings withoutsignificant thermal insulationand with low thermalcapacity, neither heated norcooled, e.g. telephonebooths, entrances of build-ings, barns, lofts, unheatedstore rooms, sheds, garages.

1) Based on IEC 60 721-3-3 and IEC 60 721-3-4.

Interlocks

• The following interlocks arespecified by VDE 0670 Part 6and IEC 60 298:

– The withdrawal or engage-ment of a circuit-breaker,switch or contactor shall beimpossible unless it is in theopen position.

– The operation of a circuit-breaker, switch or contactorshall be impossible unless itis in the service, disconnect-ed, removed, test or earthingcondition.

– It shall be impossible to closethe circuit-breaker, switch orcontactor in the serviceposition unless it isconnected to the auxiliarycircuit, unless it is designedto open automatically withoutthe use of an auxiliary circuit.

– The provision of additional or alternative interlocks shallbe subject to agreement between the manufacturerand user.

– The manufacturer shall giveall necessary information onthe character and function ofinterlocks.

– It is recommended thatearthing switches having ashort-circuit making capacityless than the rated peakwithstand current of thecircuit should be interlockedwith the associated dis-connectors.

– Apparatus installed in maincircuits, the incorrect positionof which can cause damageor which are used for assur-ing isolating distances duringmaintenance work, shall beprovided with locking facil-ities (for example, provisionfor padlocks).

– Wherever possible, pref-erence should be given tomechanical interlocks.

• Type 8BK20 switchgearfulfils other interlockingconditions over and abovethose mentioned here; see page 4.

Protection against water,electric shock and ingress ofsolid foreign bodies

As detailed in – VDE 0470 Part 1– IEC 60 298 and 60 529– VDE 0670 Part 6type 8BK20 switchgear con-forms to the following degreesof protection:• For panels without ventilation

slits:

Standard Degree of protection Type of protection

� �

6


22�Siemens HA 25.21 · 1999


Standards

��

VDE 0670 I P 4 XPart 6 and IEC 60 298

Shock-hazard protectionProtected against approach to live parts and contact with moving parts by wires or strips of thickness greater than 1 mm.

Protection against waterNo specification.

VDE 0470 I P 3 X DPart 1 andIEC 60 529

Foreign-body protectionProtection against ingress of solid foreign bodies,diameter ≥ 2.5 mm.

Protection against waterNo specification.

Shock-hazard protectionProtected against access to hazardous parts with awire (test probe with a diameter of 1 mm, length 100 mm, must have an adequate clearance from hazardous parts).

�� I P 3 1 D

Foreign-body protectionProtected against ingress of solid foreign bodies,diameter ≥ 2.5 mm.

Protection against waterProtected against ingress of vertically dripping water.


��I P 5 0

Foreign-body protectionProtected against ingress of solid foreign bodies,dust-protected.


Protection against waterNot protected.

��I P 5 1

Foreign-body protectionProtected against ingress of solid foreign bodies,dust-protected.


Protection against waterProtected against ingress of vertically dripping water.

Degree of protection

Standard Op-tional

Enclosure IP4X/ IP31D,IP3XD IP50,

IP51

Compart- IP4X/ –mentalization IP3XD

Degree of protection

Standard Op-tional

Enclosure IP4X/ IP31DIP3XD

Compart- IP4X/ –mentalization IP3XD

• For panels with prod-proofventilation slits:

Refer to the adjacent table forexplanations

A



Siemens HA 25.21 · 1999�23

Title Designation Order No.

High-Voltage Equipment (Above 52 kV)

Overvoltage Protection HG 21 E50001-K1521-A101-A1-7600Surge Counting Devices for Surge Arresters HG 21.4 E50001-K1521-A401-A1-7600

Medium-Voltage Equipment (High-Voltage Equipment up to 52 kV)

3AH Vacuum Circuit-Breakers HG 11.11 E50001-K1511-A111-A3-7600Components up to 24 kV for 3AH Vacuum Circuit-Breakers HG 11.15 E50001-K1511-A151-A1-76003TL Vacuum Contactors HG 11.21 E50001-K1511-A211-A1-7600Disconnectors and Earthing Switches HG 11.31 E50001-K1511-A311-A1-7600NXACT Vacuum Circuit-Breaker Module HG 11.51 E50001-K1511-A511-A1-7600Vacuum Switches, Switch-Disconnectors, HV HRC Fuse HG 12 E50001-K1512-A101-A4-7600Switchgear Interlock Units, Control Valves,Compressed Air Systems HG 13 E86010-K1513-A101-A1-7600Overvoltage Protection HG 21 E50001-K1521-A101-A1-76003EH2 Surge Arresters HG 21.2.5 E50001-K1521-A251-A3-76003EE2 Special-Purpose Surge Arresters for the Protectionof Motors, Generators and Furnace Transformers HG 21.2.7 E50001-K1521-A271-A3-7600Insulators of Cast Resin (Excerpt) HG 22 E50001-K1522-A111-A1-7600Current and Voltage Transformers HG 24 E50001-K1524-A101-A2-7600Air-Cored Reactors, High-Voltage Capacitors HG 25 E86010-K1525-A101-A4-7600

Medium-Voltage Switchgear (High-Voltage Indoor Distribution Switchgear)

Metal-Enclosed Truck-Type Switchboardsfor Indoor Installation 8BC1, 8BD1 HA 21 E86010-K1421-A101-A3-7600Type 8BK20 Switchgear up to 24 kVwith Withdrawable Circuit-Breakers (Metal-Clad) HA 25.21 E50001-K1425-A311-A6-7600Type 8BK40 Switchgear up to 17.5 kV/63 kA with Withdrawable Circuit-Breakers HA 25.31 E50001-K1425-A411-A2-7600Generator Circuit-Breaker Units up to 17.5 kV/80 kA, Type 8BK41 HA 25.41 E50001-K1425-A511-A1-7600Type 8BJ50 Switchgear up to 24 kV with Withdrawable Circuit-Breakers* HA 25.61 E50001-K1425-A711-A2-7600 NXAIR Withdrawable Circuit-Breaker Module Switchgear up to 12 kV, Air-Insulated HA 25.71 E50001-K1425-A811-A1-760036/38 kV Switchgearwith Withdrawable Vacuum Circuit-Breakers, HA 26.1 Siemens Den Haag, Type 8BK20 Dept.CMS DMSType 8BK30 Switchgear up to 12 kVwith Draw-Out Vacuum Contactors HA 27.11 E50001-K1427-A111-A2-7600Panels up to 36 kV with Fixed-Mounted Circuit-Breakers,SF6 -Insulated, Types 8DA10 and 8DB10Single-Pole, Metal-Enclosed, Metal-CladSingle-Busbar SwitchgearDuplicate-Busbar Switchgear HA 35.11 E50001-K1535-A101-A6-7600Type 8DC11 Panels up to 24 kV, Fixed-Mounted Vacuum Circuit-Breaker Switchgear, SF6-Insulated HA 35.41 E50001-K1435-A401-A3-7600NXPLUS Fixed-Mounted Circuit-Breaker Switchgear up to 36 kV, SF6-Insulated HA 35.51 E50001-K1435-A511-A1-7600Spline-Shaft Drive 8UG for Torque Transmission up to 200 Nm HA 39.1 E86010-K1439-A111-A2-7600Motor Drive 8UH for Torque Requirements up to 250 Nm HA 39.3 E86010-K1439-A131-A1-7600Fixed-Mounted Ring-Main Units up to 24 kV, SF6-Insulated,Type 8DH10 HA 41.11 E50001-K1441-A101-A2-7600 Fixed-Mounted Ring-Main Units up to 24 kV, SF6-Insulated,Type 8DJ10 HA 45.11 E50001-K1445-A111-A6-7600Secondary Distribution Switchgear up to 24 kV, SF6-Insulated,Type 8DJ20 HA 45.31 E50001-K1445-A311-A1-7600Type 8FB1 Compact Transformer Substations up to 24 kV HA 51.1 E50001-K1451-A111-A2-7600Factory-Built Container Stations, Type 8FF1 HA 52.1 E50001-K1452-A111-A1-7600

Catalog Index of the Power Transmission and Distribution Group (Medium-Voltage Division)

High-Voltage and Medium-VoltageEquipment

Medium-VoltageSwitchgear

Catalog IndexPlease contact your Siemens Representative

A


24�Siemens HA 25.21 · 1999

Appendix

Conditions of Sale and Delivery

Subject to the General Conditions of Supplyand Deliveryfor Products and Services of the Electrical and Electronic Industry and to any other conditions agreed upon withthe recipients of catalogs.

We reserve the right to adjustthe prices and shall charge theprices applying on the date ofdelivery.

A En 1.91a

�The technical data, dimensionsand weights are subject tochange unless otherwise stated on the individual pagesof this catalog.

The illustrations are for reference only.

Export Regulations Trademarks

In accordance with present provisions of the German Export List and the US Commercial Control List, export licences are not required for the products listed in this catalog.

Responsible for

Technical contents:Dieter Jahn,Siemens AG, Dept. EV MS1 VM,Erlangen

General editing:Gabriele Pollok,Siemens AG, Dept. EV BK T,Erlangen

An export licence may however be required due tocountry-specific application andfinal destination of the products.

Relevant are the export criteriastated in the delivery note andthe invoice subject to a possibleexport and reexport licence.

Subject to change without notice.

All product designations usedare trademarks or productnames of Siemens AG or ofother suppliers.

Dimensions

All dimensions in this catalogare given in mm.

This edition corresponds to the 1998 German edition.Printed in GermanyKGK 1.99 16. 24 En 100857 6101/U827

Bereich Energieübertragung und -verteilungGeschäftsgebiet MittelspannungPostfach 32 20D-91050 Erlangen

http: //www.ev.siemens.de

Siemens Aktiengesellschaft Order No.: E50001-K1425-A311-A6-7600

Central Office: Electrokavir Co. ” Under License of SIEMENS “

KAVIR Bldg. No. 374 Mirdamad Ave, TEHRAN 15189 - IRAN _ P.O. Box: 15189-65514 Tel: +98 21 88677210 (10Line) , 88788125, 88796486, 88783156, Fax: +98 21 88789448 Web: www.electrokavir.com Email: [email protected] Factory: KHEZRABAD, YAZD - IRAN Tel: +98 351 7272974-6 Fax: +98 351 7272386

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