Siemens 8DJH User manual

Medium-Voltage Switchgear
Medium-Voltage Switchgear Type 8DJH, Block Versions
Up to 24 kV, Gas-Insulated
Medium-V oltage Switchgear
INSTALLATION AND
OPERATING
INSTRUCTIONS
Order No.: 500-8067.9
Revision: 05
Issue: 21-08-2017

2/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
About these Instructions
These instructions do not purport to cover all details or
variations in equipment. They do also not provide for every
possible contingency to be met in connection with
installation or operation. For details about technical design
and equipment like for example technical data, secondary
equipment, circuit diagrams, please refer to the order
documents. The switchgear is subject to continuous
technical development within the scope of technical
progress.The switchgear is subject to continuous technical
development within the scope of technical progress. If not
stated otherwise on the individual pages of these
instructions, we reserve the right to modify the specified
values and drawings.If not stated otherwise on the
individual pages of these instructions, we reserve the right
to modify the specified values and drawings. All dimensions
are given in mm. Should further information be desired or
should particular problems arise which are not covered
sufficiently by these instructions, the matter should be
referred to the competent Siemens department. The
contents of this instruction manual shall not become part of
or modify any prior or existing agreement, commitment or
relationship. The Sales Contract contains the entire
obligations of Siemens. The warranty contained in the
contract between the parties is the sole warranty of
Siemens. Any statements contained herein do not create
new warranties or modify the existing warranty.

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 3/121
Contents
Safety instructions .............................................5
1 Signal terms and definitions ...............................5
2 General instructions ...........................................6
3 IT security .......................................................... 8
4 Due application .................................................. 8
5 Qualified personnel............................................8
Description ......................................................... 9
6 Panel versions .................................................... 9
7 Components .................................................... 11
7.1 Three-position switch-disconnector .................. 11
7.2 Vacuum circuit-breaker type 2 ..........................13
7.3 Interlocks ......................................................... 14
7.4 HV HRC fuse assembly ...................................... 15
7.5 Cable connection .............................................16
7.6 Current and voltage transformers ..................... 21
7.7 Possibilities for pressure relief........................... 22
7.8 Protection and control equipment .................... 22
7.9 Voltage detecting systems................................ 23
7.10 Ready-for-service indicator ...............................23
7.11 Short-circuit/earth-fault indicator...................... 24
7.12 Accessories ...................................................... 25
7.13 Low-voltage compartment (option) .................. 25
8 Technical data.................................................. 26
8.1 General technical data......................................26
8.2 Three-position switch-disconnector .................. 27
8.3 Three-position disconnector .............................28
8.4 Vacuum circuit-breaker..................................... 29
8.5 Classification of the switchgear ........................ 32
8.6 Standards and guidelines.................................. 32
8.7 Dimensions and weights .................................. 34
8.8 Phase sequence................................................ 35
8.9 Insulating gas................................................... 35
8.10 Dielectric strength and site altitude................... 35
8.11 Selection of HV HRC fuse-links ..........................37
8.12 Rating plates .................................................... 44
9 Switchgear maintenance .................................. 45
10 End of life ........................................................ 45
Installation ....................................................... 46
11 Transport and storage ......................................46
11.1 Unloading and transport to place of
installation....................................................... 46
11.2 Packing ............................................................ 48
11.3 Completeness and transport damage................ 49
11.4 Intermediate storage........................................49
12 Switchgear installation ..................................... 51
12.1 Tools and auxiliary means................................. 51
12.2 Cleaning agents and cleaning aids.................... 51
12.3 Mounting paste................................................ 51
12.4 Tightening torques........................................... 52
12.5 Comments on electromagnetic compatibility .... 52
12.6 Preparing the switchgear room......................... 54
12.7 Preparing the foundation ................................. 55
12.8 Unpacking the switchgear ................................ 55
12.9 Checking service readiness ............................... 57
12.10 Fastening the panel to the foundation.............. 57
12.11 Floor openings and fixing points....................... 59
12.12 Earthing the switchgear ................................... 62
13 Electrical connections....................................... 63
13.1 Connecting high-voltage cables........................ 63
13.2 Installing cable plugs type
Raychem RICS5xxx with RDA............................. 66
13.3 Cable connection with cable-type current
transformers ....................................................68
13.4 Installing ring-core current sensors at the
cable connection.............................................. 71
13.5 Installing voltage sensors ................................. 72
13.6 Connecting the secondary equipment .............. 74
13.7 Correcting circuit diagrams............................... 75
14 Recurring activities ........................................... 76
14.1 Removing and mounting the
cable compartment cover................................. 76
14.2 Removing and mounting the cross member...... 77
15 Commissioning ................................................ 78
15.1 Final tests after installation............................... 78
15.2 Mechanical and electrical function test ............. 79
15.3 Preparing the power-frequency voltage test......80
15.4 Instructing the operating personnel.................. 80
15.5 Applying operating voltage............................... 81
Operation..........................................................83
16 Indicators and control elements........................ 84
16.1 Position indicators............................................ 85
16.2 Operations counter ..........................................85
16.3 "Spring charged" indicator ................................ 85
16.4 Ready-for-service indicator ............................... 85
16.5 Operating tools ................................................ 86

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16.6 Mechanical interlocking with padlock............... 87
16.7 Local-remote switch (option) ........................... 87
16.8 Momentary-contact rotary control switch for
motor operating mechanism (option)............... 88
16.9 Key-operated interlock (option)........................ 88
17 Operating the panel with
switch-disconnector......................................... 89
17.1 Switching the three-position
switch-disconnector from OPEN to
CLOSED position .............................................. 89
17.2 Switching the three-position
switch-disconnector from CLOSED to
OPEN position.................................................. 90
17.3 Switching the three-position
switch-disconnector from OPEN to
EARTHED position ............................................ 91
17.4 Switching the three-position
switch-disconnector from EARTHED to
OPEN position.................................................. 92
18 Operating the panel with switch-fuse
combination .................................................... 93
18.1 Switching the three-position
switch-disconnector from OPEN to
CLOSED position .............................................. 94
18.2 Switching the three-position
switch-disconnector from CLOSED to
OPEN position.................................................. 95
18.3 Switching the three-position
switch-disconnector from OPEN to
EARTHED position ............................................ 95
18.4 Switching the three-position
switch-disconnector from EARTHED to
OPEN position.................................................. 96
18.5 Protection tripping of the switch-fuse
combination .................................................... 97
19 Operating the panel with
circuit-breaker type 2 ....................................... 98
19.1 Charging the spring energy store in
circuit-breaker type 2 manually ........................ 99
19.2 Closing circuit-breaker type 2 ......................... 100
19.3 Opening circuit-breaker type 2 ....................... 100
19.4 Switching the three-position disconnector
from OPEN to CLOSED position....................... 101
19.5 Switching the three-position disconnector
from CLOSED to OPEN position....................... 101
19.6 Switching the three-position disconnector
from OPEN to EARTHED position..................... 102
19.7 Switching the three-position disconnector
from EARTHED to OPEN position..................... 103
20 Verification of safe isolation from supply........ 104
20.1 HR or LRM plug-in sockets .............................. 104
20.2 VOIS and CAPDIS indications .......................... 106
20.3 WEGA indications........................................... 108
21 Replacing HV HRC fuse-links ........................... 109
22 Cable testing.................................................. 112
22.1 Cable testing via cable plugs .......................... 112
22.2 Cable sheath test ........................................... 113
Annex..............................................................114
23 MCU (Motor Control Unit) .............................. 114
23.1 Extract from the Technical Description ........... 114
23.2 Application .................................................... 114
23.3 Design, function ............................................ 114
23.4 Fault signals................................................... 115
23.5 Behavior in case of voltage failure .................. 117
Siemens Service Hotline .................................118
Index ...............................................................119

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 5/121
Safety instructions
Safety instructions
1 Signal terms and definitions
Symbols used ➭ Operation symbol: Identifies an operation. Asks the operator to perform an operation.
✔ Result symbol: Identifies the result of an operation.
DANGER
as used in these instructions, this means that personal injuries can occur if the relevant
precautionary measures are not taken.
➭ Observe the safety instructions.
ATTENTION
as used in these instructions, this means that damage to property or environment can occur if
the relevant precautionary measures are not taken.
➭ Observe the safety instructions.
NOTE
as used in these instructions, this points at facilitations of work, particularities for operation or
possible maloperation.
➭ Observe the notes.

Safety instructions
6/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
2 General instructions
Important • The personnel must read and understand this manual before starting to work.
• Observe all safety instructions and warnings in this manual, and follow the instructions.
• Store this manual carefully, and so that it is accessible to the personnel at any time.
• This manual is a part of the product. When the switchgear is transferred, supply this manual
as well.
The switchgear corresponds to the relevant laws, prescriptions and standards applicable at the
time of delivery. If correctly used, it provides a high degree of safety by means of logical
mechanical interlocks and shockproof metal enclosure of live parts.
Independently of the safety instructions given in these operating instructions, the local laws,
ordinances, guidelines and standards for operation of electrical equipment as well as for labor,
health and environmental protection apply.
The switchgear operator or owner must keep the technical documents supplied with the
switchgear throughout the entire service life, and keep them up-to-date in case of
modifications of the switchgear.
Five Safety Rules of
Electrical Engineering
The Five Safety Rules of Electrical Engineering must be complied with during operation of the
products and components described in these operating instructions:
• Isolate.
• Secure against reclosing.
• Verify safe isolation from supply.
• Earth and short-circuit.
• Cover or barrier adjacent live parts.
Hazardous substances If hazardous substances are required to perform the work, the relevant safety data sheets and
operating instructions must be observed.
DANGER
The perfect and safe operation of this switchgear is conditional on:
➭ Observance of operating and installation instructions.
➭ Qualified personnel.
➭ Proper transportation and correct storage of the switchgear.
➭ Correct installation and commissioning.
➭ Diligent operation and maintenance.
➭ Observance of the instructions applicable at site for installation, operation and safety
(e.g. DIN VDE 0101/0105). (e.g. DIN VDE 0101/0105).
DANGER
Any kind of modification on the product or alteration of the product must be coordinated with
the manufacturer in advance. Non-coordinated modifications or alterations can cause the
expiration of warranty claims, and cause danger to life, limb and other legally protected
interests. The fulfillment of the type tests (according to IEC 62271-200) may not be guaranteed
anymore. This applies especially though not exclusively to the following actions, e.g in the
course of maintenance or repairs:
➭ Original Siemens spare parts were not used.
➭ Service engineers performing replacement were not trained and certified by Siemens.
➭ Parts were fitted or adjusted incorrectly.
➭ Settings were not made in accordance with Siemens specifications.
➭ After installation and setting, no final check was performed by a service engineer approved
by Siemens, including documentation of the test results.
➭ Maintenance was not done according to the operating instructions of the Siemens
products.

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 7/121
Safety instructions
Personal protective
equipment (PPE)
For switchgear with proven internal arc classification according to IEC 62271 Part 200, no
personal protective equipment must be worn for operating the switchgear.
For switchgear without proof of internal arc classification according to IEC 62271 Part 200,
personal protective equipment must be worn for operating the switchgear.
If covers have to be removed to work on switchgear, personal protective equipment must be
worn for protection against hot gases exhausting in case of internal arc. In case of internal arc,
full personal protection is not provided, even if the personal protective equipment is worn.
To select the protective equipment, the local laws and regulations must be observed and
accomplished.
The protective equipment consists of:
• Protective clothing
•Safety shoes
•Gloves
•Helmet and face protection
•Ear protection
Removing the front plate from the operating mechanism compartment
DANGER
Risk of injury by release of charged operating springs when the front cover of the operating
mechanism is removed! Bruises or cuts at the hands can be the consequence.
➭ To avoid impermissible switching operations, switch off auxiliary voltage, e.g.:
- Switch the auxiliary voltage supply of the motor.
-Trip the MCB.
- Disconnect the control cables from the low-voltage compartment.
➭ To discharge the spring energy store in the operating mechanism, perform the following
operations before removing the front cover:
- Actuate the OFF pushbutton.
- Actuate the ON pushbutton.
- Actuate the OFF pushbutton.
➭ The spring energy store indicator must show "spring not charged".
Fig. 1: "Spring not charged" indication Fig. 2: "Spring charged" indication

Safety instructions
8/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
3IT security
The Siemens software is regularly checked for safety. If weak points are identified in the
process, which may allow third parties to access protection devices, information thereto is
distributed through the SIPROTEC and SICAM Security Update Report Newsletter.
The Newsletter can be subscribed to at the following website:
www.siemens.com/gridsecurity
Before commissioning the switchgear, it must be verified that the current firmware version is
installed on the protection devices. The latest version of firmware can be obtained from the
following website:
http://w3.siemens.com/smartgrid/global/en/products-systems-solutions/downloads/
Pages/Overview.aspx
For information to updates for other makes of protection devices, please contact the
respective manufacturer.
4 Due application
The factory-assembled, type-tested and metal-enclosed 8DJH switchgear for indoor
installation is used for power distribution in secondary distribution systems, e.g. in
transformer substations, transfer substations or industrial distribution systems.
The switchgear is designed for application under normal ambient conditions according to
IEC 62271-1. The switchgear can also be used under special ambient conditions as defined
individually between the operator and the manufacturer of the switchgear.
SF6 is used as insulating gas in the switchgear vessel.
5 Qualified personnel
Qualified personnel in accordance with these instructions are persons who are familiar with
transport, installation, commissioning, maintenance and operation of the product and have
appropriate qualifications for their work, as e.g.:
• Training and instruction or authorization to switch on, switch off, earth and identify power
circuits and equipment / systems as per the relevant safety standards.
• Instruction regarding the applicable specifications for the prevention of accidents and the
care and use of appropriate safety equipment.
• Training in first aid and behavior in the event of possible accidents.

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 9/121
Description
Description
6 Panel versions
Panel blocks Panel blocks can be operated with up to 4 functions in one common switchgear vessel.
Combinations of transformer feeder and circuit-breaker feeder are possible via panel
extensions.
Panel type (function) Panel width [mm]
Standard Option
RRing-main panel 310 –
KCable panel 310 430
TTransformer panel 430 –
LCircuit-breaker panel 430 –
Block of 2 panels Block of 3 panels Block of 4 panels
Panel
types
Block width Panel
types
Block width Panel
types
Block width Panel
types
Block width
RR 620 mm RRR 930 mm RRRR 1240 mm RRLL 1480 mm
RK 620 mm RRT 1050 mm RRRT 1360 mm RTRT 1480 mm
KR 620 mm RTR 1050 mm RRRL 1360 mm TRTR 1480 mm
RT 740 mm RRL 1050 mm RRTR 1360 mm RLRL 1480 mm
RL 740 mm RLR 1050 mm RTRR 1360 mm LRLR 1480 mm
KT 740 mm TRR 1050 mm TRRR 1360 mm TTTR 1600 mm
KL 740 mm LRR 1050 mm RRLR 1360 mm TTRT 1600 mm
TK 740 mm RTT 1170 mm RLRR 1360 mm TRTT 1600 mm
TR 740 mm TRT 1170 mm LRRR 1360 mm RTTT 1600 mm
LK 740 mm TTR 1170 mm TRRT 1480 mm LLLR 1600 mm
LR 740 mm RLL 1170 mm LRRL 1480 mm LLRL 1600 mm
TT 860 mm LRL 1170 mm RTTR 1480 mm LRLL 1600 mm
LL 860 mm LLR 1170 mm TTRR 1480 mm RLLL 1600 mm
LLL 1290 mm RRTT 1480 mm TTTT 1720 mm
TTT 1290 mm RLLR 1480 mm LLLL 1720 mm
LLRR 1480 mm

Description
10/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Examples for panels
Fig. 5: Circuit-breaker panel type 2
Fig. 3: Ring-main panel type R Fig. 4: Transformer panel type T
①Control board ⑧Bushing for cable plug
②Busbar ⑨Cable compartment cover
③Three-position switch-disconnector ⑩Earthing busbar
④Pressure relief device ⑪Partition
⑤Wiring duct (removable) ⑫HV HRC fuse assembly
⑥Switchgear vessel ⑬Vacuum circuit-breaker
⑦Operating mechanism of switching
device

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 11/121
Description
7 Components
7.1 Three-position switch-disconnector
Features • Three-position switch-disconnector for rated voltages from 7.2 kV to 24 kV
• Switching functions as switch-disconnector (class E3) according to
IEC/EN 62271-103 / VDE 0671-103, IEC/EN 62271-102 / VDE 0671-102 and
IEC/EN 62271-105 / VDE 0671-105
• Designed with the functions of a switch-disconnector and a make-proof earthing switch
• Switch positions CLOSED, OPEN and EARTHED
• With the switch-fuse combination, the HV HRC fuse box can be earthed from both sides
(standard).
Spring-operated
mechanism
The spring-operated mechanism is used for the three-position switch-disconnector in
ring-main panels (as ring-main switch). The switching movements are performed
independently of the operating speed.
Fig. 6: Front operating mechanism box of ring-main
panel
①Ready-for-service indicator
②ON/OFF momentary-contact rotary
control switch for motor operating
mechanism, switch-disconnector
(option)
③Local-remote switch (option)
④Auxiliary switch (option)
⑤Control gate/locking device
⑥Motor operating mechanism (option)
⑦Sockets for capacitive voltage
detecting system
⑧Actuating opening for EARTHING
⑨Position indicator for three-position
switch-disconnector
⑩Actuating opening for CLOSING/
OPENING
⑪Retainer for short-circuit indicator /
earth-fault indicator and voltage
detecting system

Description
12/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Spring-operated/stored-
energy mechanism
The spring-operated/stored energy mechanism is used for three-position switch-disconnectors
in transformer panels (as transformer switch).
With the operating lever, the closing spring and the opening spring of the operating
mechanism are charged at the same time. After that, the three-position switch-disconnector
can be first closed and then opened with separate pushbuttons.
When a HV HRC fuse or the shunt release (f-release) trips, the precharged opening spring is
available for the opening operation; no additional charging process is required. This ensures
that the switch-fuse combination can switch off all appearing faults reliably even when the
three-position switch-disconnector closes.
When a HV HRC fuse has tripped, the "fuse tripped" indicator shows a red transverse bar.
The three-position switch-disconnector can be switched to EARTHED position with the
operating lever.
In order to prevent the operating lever from being left inserted accidentally, the spring-
operated/stored-energy mechanism is equipped with an operating lever ejection system as
standard.
Fig. 7: Front operating mechanism box of transformer
panel
①Ready-for-service indicator
②ON/OFF momentary-contact rotary control switch for motor operating
mechanism, switch-disconnector (option)
③Local-remote switch (option)
④ON pushbutton for three-position switch-disconnector (mechanical
operation)
⑤Auxiliary switch (option)
⑥Control gate/locking device
⑦Motor operating mechanism (option)
⑧Sockets for capacitive voltage detecting system
⑨Actuating opening for EARTHING the three-position switch-disconnector
⑩"Fuse tripped" indicator
⑪Position indicator for three-position switch-disconnector
⑫OFF pushbutton for three-position switch-disconnector (mechanical
operation)
⑬Shunt release (f-release, option)
⑭Actuating opening for "spring charging" (switch-disconnector)
⑮"Spring charged" indicator (switch-disconnector)
⑯Retainer for short-circuit indicator / earth-fault indicator and voltage
detecting system

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 13/121
Description
7.2 Vacuum circuit-breaker type 2
Features • Vacuum circuit-breaker for rated voltages from 7.2 kV to 24 kV
• According to IEC/EN 62271-100 / VDE 0671-100
• Climate-independent vacuum interrupter poles in the gas-filled switchgear vessel
• Application in hermetically welded switchgear vessel in conformity with the system
• Operating mechanism located outside the switchgear vessel in the front operating
mechanism box
• Maintenance-free according to IEC/EN 62 271-1 / VDE 0671-1
The vacuum circuit-breaker consists of a vacuum interrupter unit with integrated three-
position disconnector located in the switchgear vessel, and the associated operating
mechanisms.
The vacuum circuit-breaker is a circuit-breaker without automatic reclosing.
Operating function The closing and opening spring is charged by means of the operating lever supplied, or by the
motor (option), until the latching of the closing/opening spring is indicated ("spring charged"
indication). Then, the vacuum circuit-breaker can be closed manually or electrically (option).
Fig. 8: Front operating mechanism box of circuit-breaker panel
type 2
①Ready-for-service indicator
②Motor for three-position disconnector (option)
③Actuating opening for CLOSING/OPENING, three-position
disconnector
④Control gate / locking device for three-position disconnector
⑤Position indicator for three-position disconnector
⑥Actuating opening for EARTHING, three-position disconnector
⑦Sockets for capacitive voltage detecting system
⑧Motor for circuit-breaker (option)
⑨Control gate / locking device for circuit-breaker
⑩Position indicator for circuit-breaker
⑪OFF pushbutton for circuit-breaker (mechanical operation)
⑫Actuating opening for "spring charging" (circuit-breaker)
⑬"Spring charged" indicator
⑭ON pushbutton for circuit-breaker (mechanical operation)
⑮Auxiliary switch at the three-position disconnector (option)
⑯Auxiliary switch at the circuit-breaker (option)

Description
14/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
7.3 Interlocks
Mechanical interlocks •Separate actuating openings for DISCONNECTING and EARTHING:
Switching straight from CLOSED to EARTHED position and from EARTHED to CLOSED
position is not possible, as the operating lever must be re-inserted in the OPEN position.
•Cable compartment interlock:
To remove the cable compartment cover, the feeder must be earthed.
•Locking device (option):
The locking device of the switching gate on the three-position disconnector and three-
position switch-disconnector can be padlocked in all three switch positions. The locking
device can be padlocked so that no closing, no opening or no earthing is possible. The
padlock can also be fitted in such a way that none of the three switching operations can be
performed.
•Closing lockout (option):
When the cable compartment cover is removed, the three-position disconnector / three-
position switch-disconnector cannot be switched to CLOSED position. Switching from
EARTHED to OPEN position is possible, e.g. to test the cables without removing the cable
plugs.
•De-earthing lockout (option):
When the cable compartment cover is removed, the three-position disconnector / three-
position switch-disconnector cannot be switched from EARTHED to OPEN position.
•Operating lever inserted:
When the operating lever is inserted, the stored-energy mechanism and the circuit-breaker
operating mechanism cannot be activated or deactivated.
•Interlocking between circuit-breaker and three-position disconnector:
- Circuit-breaker in OPEN position:
The three-position disconnector can be closed and opened. As soon as one of the actuating
openings of the three-position disconnector is opened, the circuit-breaker cannot be
operated anymore.
- Circuit-breaker in CLOSED position:
No switching operations are possible with the three-position disconnector.
Availability of the mechanical interlocks
Electrical interlocking On the customer's request, different electrical interlocks can be installed.
Mechanical interlocking Panel type
R T L K
Separate actuating openings X X X –
Cable compartment interlock X X X –
Locking device O X X –
Closing lockout O – O –
De-earthing lockout – X O –
Operating lever inserted – X X –
Interlocking between circuit-breaker and
three-position disconnector ––X–
X Available O Option – Not available

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 15/121
Description
7.4 HV HRC fuse assembly
Features • With fuse slide for fuse replacement without tools
• HV HRC fuse-links according to DIN 43625 (main dimensions) with striker in "medium"
version according to IEC/EN 60282-1
- as short-circuit protection before transformers
- with selectivity to upstream and downstream connected equipment
- 1-pole insulated
• Dimension e of the fuse-links
-U
r = 12 kV: e = 292 mm (optionally, e = 442 mm)
-U
r = 24 kV: e = 442 mm
• Requirements according to IEC 62271-105 / VDE 0671-105 met for HV HRC fuse-links in
combination with the three-position switch-disconnector
• Thermal striker tripping when the corresponding HV HRC fuse-link is used
• Climate-independent and maintenance-free, with fuse boxes made of cast resin
• Arrangement of fuse assembly below the switchgear vessel
• Fuse assembly connected to the three-position switch-disconnector via welded-in bushings
and connecting bars
• Fuse replacement is only possible when the feeder is earthed
• Option for HV HRC fuse-links: "Tripped" indication for remote electrical indication with a
NO contact
Mode of operation If a HV HRC fuse-link operates, the switch is tripped via an articulation which is integrated into
the cover of the fuse box.
Thermal protection If the fuse tripping fails, the sudden overpressure trips the switch via a diaphragm and the
articulation situated in the cover of the fuse box.
The thermal protection works independently of the type and design of the HV HRC fuse-link
used. The thermal protection is maintenance-free and independent of any outside climatic
effects.
Fig. 9: HV HRC fuse assembly
①Fuse box
②Fuse slide
③Tripping pin
④Sealing cover with seal
⑤Cap with control electrode
⑥HV HRC fuse-link
⑦Cable connection (bushing)
⑧Switchgear vessel
⑨Fuse bushing

Description
16/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Basic scheme of fuse
tripping
The HV HRC fuse-links make SIBA (see page 37, "Selection of HV HRC fuse-links") release the
striker depending on the temperature and trip the switch-disconnector as early as in the
overload range of the fuses. Impermissible heating of the fuse box can be avoided in this way.
7.5 Cable connection
Cable connection for cable feeders, ring-main feeders and circuit-breaker feeders
Features For the cable connection, customary cable plugs for interface type C with bolted contact M16
are used according to EN 50181/DIN EN 50181.
Available designs:
• Screened (conductive) design (standard)
• On request: insulated design, e.g. as adapter for conventional sealing ends or mass-
impregnated cables (restrictions for site altitude and ambient climate)
For recommended cable plugs and possible connection cross-sections, see page 18, "Cable
plugs for single cable connection (interface type C)". The installation of other makes and types
is possible on request.
Fig. 10: Cable connection for ring-main feeder (example)
Connection possibilities for cable feeders, ring-main feeders and circuit-breaker feeders
HV HRC fuse-link in service condition
Fuse tripping through striker of HV HRC fuse-link
Fuse tripping due to sudden overpressure in the
fuse box
Cable Panel width
[mm]
310 430
Thermoplastic-insulated single-core
cable
1 cable per phase X X
1 cable per phase with surge limiter or surge arrester O O
with voltage transformer 4MT8 – –
2 cables per phase O O
2 cables per phase with surge limiter or surge arrester O O
Thermoplastic-insulated three-core cable 1 cable on request
Mass-impregnated cable 1 cable on request
X Standard O Option

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 17/121
Description
Option • Mounted cable clamps on cable brackets
• Deep cable compartment cover
• Cable testing, e.g. with measuring bolt, see page 112, "Cable testing"
Cable connection for transformer feeders
Features For the cable connection, customary cable plugs for interface type A with plug-in contact
(standard), or interface type C with bolted contact M16 (option) are used according to
EN 50181/DIN EN 50181.
Available designs:
• Screened (conductive) design (standard)
• 1 cable per phase
For recommended cable plugs with interface type A and possible connection cross-sections,
see page 19, "Cable plugs for single cable connection (interface type A)". For cable plugs with
interface type C, see page 18, "Cable plugs for single cable connection (interface type C)". The
installation of further makes and types is possible on request.
Option • Mounted cable clamps on cable bracket
Possible connection options (examples):
Fig. 11: Cable feeder downwards with elbow
plugs (interface type A)
Fig. 12: Cable feeder downwards with
straight plugs (interface type A)
Fig. 13: Cable feeder to the front with elbow
plugs or T-plugs (interface type C)
Fig. 14: Cable feeder backwards with elbow
plugs (interface type A)
①Cable plug
②Earthing

Description
18/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Cable plugs for single cable connection (interface type C)
Cable type Cable plug
Make Ser.
no.
Type Design
T/W1, 2
Conductor
cross-
section
[mm2]
Design2
Thermoplastic-insulated cables ≤ 12 kV according to IEC / EN 60502-2 / VDE 0276-620
1- or 3-core cable,
PE and XLPE-insulated
N2YSY (Cu) and N2XSY (Cu)
or
NA2YSY (Al) and NA2XSY (Al)"
Nexans 1 400TB/G, 430TB/G, 480TB/G T 35...300 Screened
2 400LB/G W 35...300 Screened
3 484TB/G T 70...630 Screened
4 440TB/G T 185...630 Screened
nkt cables 5 CB 24-630 T 25...300 Screened
6 AB 24-630 T 25...300 Insulated
7 CB 36-630 (1250) T 300...630 Screened
Südkabel 8 SET 12 T 50...300 Screened
9 SEHDT 13 T 185...500 Screened
Prysmian Kabel und Systeme
(Pirelli Elektrik)
10 FMCTs-400 T 25...300 Screened
3M Germany 11 93-EE 705-6 / -95 T 50...95 Screened
12 93-EE 705-6 / -240 T 95...240 Screened
TE Connectivity 13 RICS 51 ... with IXSU3T 25...300 Insulated
14 RICS 31 ... with IXSU3T 25...300 Insulated
15 RSTI-39xx T 400...800 Screened
Thermoplastic-insulated cables 15 / 17.5 / 24 kV according to IEC / EN 60502-2 / VDE 0276-620
1- or 3-core cable,
PE and XLPE-insulated
N2YSY (Cu) and N2XSY (Cu)
or
NA2YSY (Al) and NA2XSY (Al)
Nexans 16 K400TB/G, 430TB/G, 480TB/
G
T 35...300 Screened
17 K400LB/G W 35...300 Screened
18 484TB/G T 70...630 Screened
19 K440TB/G T 185...630 Screened
nkt cables 20 CB 24-630 T 25...300 Screened
21 AB 24-630 T 25...300 Insulated
22 CB 36-630 (1250) T 300...630 Screened
Südkabel 23 SET 24 T 50...240 Screened
24 SEHDT 23.1 T 300 Screened
25 SEHDT 23 T 185...630 Screened
Prysmian Kabel und Systeme
(Pirelli Elektrik)
26 FMCTs-400 T 25...240 Screened
3M Germany 27 93-EE 705-6 / -95 T 25...95 Screened
28 93-EE 705-6 / -240 T 95...240 Screened
TE
Connectivity
for 1-core
cables
29 RICS 51 ... with IXSU3T 25...300 Insulated
30 RSTI-58xx T 25...300 Screened
31 RSTI-59xx T 400...800 Screened
for 3-core
cables
32 RICS 51 ... with IXSU3T 25...300 Insulated
33 RSTI-58xx + RSTI-TRFxx T 25...300 Screened
Paper-insulated mass-impregnated cables ≤ 12 kV according to IEC / EN 60055-2 / VDE 0276-621
3-core cable, paper-insulated
N(A)KLEY, N(A)KBA, N(A)KBY
TE Connectivity 34 RICS 51... with UHGK / EPKT T 95...300 Insulated
3-core cable, paper-insulated
N(A)EKBA, N(A)KLEY
35 RICS 51... with IDST 513T 50...300 Insulated
Paper-insulated mass-impregnated cables 15 / 17.5 / 24 kV according to IEC / EN 60055-2 / VDE 0276-621
1-core or 3-core cable, paper-
insulated
N(A)EKBA, N(A)KLEY
TE Connectivity 36 RICS 51 ... with IDST 513T 35...240 Insulated
1T = Cable T-plug, W= Cable elbow plug
2Use of current transformers and current sensors in combination with insulated systems on request
3Discontinued by the manufacturer

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 19/121
Description
Cable plugs for single cable connection (interface type A)
Cable type Cable plug
Make Ser.
no.
Type Plug version
G/W1
Conductor
cross-
section
[mm2]
Design
Thermoplastic-insulated cables ≤ 12 kV according to IEC / EN 60502-2 / VDE 0276-620
1-core cable, PE- and
XLPE-insulated
N2YSY (Cu) and
N2XSY (Cu)
or
NA2YSY (Al) and
NA2XSY (Al)
Nexans 1 158LR W 16...120 Screened; with capacitive measuring point
2 152SR G 95...120 Screened; with capacitive measuring point
nkt cables 3 EASW 10 / 250, size 2 W 25...95 Screened; option: with metal housing or
capacitive measuring point
4 EASG 10 / 250, size 2 G 25...95 Screened; option: with capacitive
measuring point
5 CE 24 – 250 W 95...120 Screened; option: with metal housing or
capacitive measuring point
Südkabel 6 SEHDG 11.1 G 25...120 Screened; option: with metal housing
7 SEW 12 W 25...120 Screened; option: with metal housing
Cooper Power
Systems
8 DE 250 – R-C W 16...120 Screened
9 DS 250 – R-C G 16...120 Screened
Prysmian Kabel
und Systeme
(Pirelli Elektrik)
10 FMCE-250 W 25...120 Screened
3M Germany 11 93-EE 605-2 / -95 W 25...95 Screened; option: with metal housing
12 93-EE 600-2 / xx G 25...150 Screened; option: with metal housing
TE Connectivity 13 RSSS 52xx G 25...95 Screened; with capacitive measuring point
14 RSES 52xx-R W 25...120 Screened; with capacitive measuring point
Thermoplastic-insulated cables 15 / 17.5 / 24 kV according to IEC / EN 60502-2 / VDE 0276-620
1-core cable, PE- and
XLPE-insulated
N2YSY (Cu) and N2XSY
(Cu)
or
NA2YSY (Al) and
NA2XSY (Al)
Nexans 15 K158LR W 16...120 Screened; with capacitive measuring point
16 K152SR G 25...120 Screened; with capacitive measuring point
nkt cables 17 EASG 20 / 250 G 25...95 Screened; option: with metal housing
18 CE 24 – 250 W 25...95 Screened; option: with metal housing or
capacitive measuring point
Südkabel 19 SEHDG 21.1 G 25...70 Screened; option: with metal housing
20 SEW 24 W 25...95 Screened; option: with metal housing
Cooper Power
Systems
21 DE 250 – R-C W 16...120 Screened
22 DS 250 – R-C G 16...120 Screened
Prysmian Kabel
und Systeme
(Pirelli Elektrik)
23 FMCE-250 W 25...120 Screened
3M Germany 24 93-EE 605-2 / -95 W 25...95 Screened; option: with metal housing
25 93-EE 600-2 / xx G 25...150 Screened; option: with metal housing
TE Connectivity 26 RSSS 52xx G 16...70 Screened; with capacitive measuring point
27 RSES 52xx-R W 16...120 Screened; with capacitive measuring point
1 G = Straight cable plug, W = Cable elbow plug

Description
20/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Deep cable compartment cover (option)
For cable feeders, ring-main feeders and circuit-breaker feeders, the connection of up to
2 cables per phase (double cable connection) is possible, also in connection with surge
arresters or surge limiters. Depending on the panel type, plug make or surge arrester make, a
deep cable compartment can be selected to obtain a larger mounting depth of the cable
compartment. For further information, see page 20, "Cable plugs for double cable connection
(interface type C)", and see page 21, "Cable plugs for single cable connection and double cable
connection with surge arrester (interface type C) ".
Fig. 15: Mounting depth at the panel connection for panel types R, K and L
Cable plugs for double cable connection (interface type C)
Cable plug Connection combination Deep cable compartment
cover1
Make Ser.
no.
Type Design2Arrangement
of cable plug
(K)
Mounting
depth
(mm)
Deeper by a
(mm)
Depth of
floor
opening b
(mm)
Nexans 1 (K)430TB/G + (K)300PB/G
(K)480TB/G + (K)800PB/G
(K)484TB/G + (K)804PB/G
Screened K + K 290 – 635
2 2x (K)400TB/G with coupling insert (K)400CP Screened K + K 505 250 860
3 (K)400TB/G + (K)400LB/G
with coupling insert (K)400CP-LB Screened K + K 455 250 860
4 (K)400TB/G + (K)430TB/G
with coupling insert (K)400CP Screened K + K 403 250 860
5 2x (K)440TB/G with coupling insert (K)440CP Screened K + K 505 250 860
Südkabel 6 SET (12/24) + SEHDK (13.1/23.1) Screened K + K 290 – 635
7 SEHDT 23.1 + SEHDK 23.1 Screened K + K 290 – 635
8 2x SEHDT 23.1 with coupling unit KU 23.2/23 Screened K + K 363 250 860
9 SEHDT (13/23) + SET (12/24)
with coupling unit KU 23 or KU 33 Screened K + K 451 250 860
10 2x SET (12/24) with coupling unit KU 23.2/23 Screened K + K 363 105 715
nkt cables 11 CB 24-630 + CC 24-630 Screened K + K 290 – 635
12 2x CB 24-630 with coupling unit CP 630C Screened K + K 370 250
1053
860
715
13 AB 24-630 + AC 24-630 Insulated K + K 290 1053715
14 2x AB 24-630 with coupling unit CP 630A Insulated K + K 370 250
1053
860
715
15 CB 36-630 (1250) + CC 36-630 (1250) Screened K + K 300 – 635
TE
Connectivity
16 RSTI-58xx + RSTI-CC-58xx Screened K + K 285 – 635
17 RSTI-x9xx + RSTI-CC-x9xx Screened K + K 315 105 715
3M Germany 18 2x 93-EE705-6/xxx with coupling unit KU 23.2 Screened K + K 363 105 715
1Only for 310 mm and 430 mm wide panels.
2Use of current transformers and current sensors in combination with insulated systems on request
3On request