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Floor openings ............................................................... 50
Floor, construction ......................................................... 52
Floor, load-bearing capacity ............................................ 51
G
Gas compartment, evacuating ........................................ 92
Gas compartment, filling ................................................ 92
Gas compartments ......................................................... 30
Gas filling of busbar........................................................ 85
Gas filling, checking...................................................... 128
Gas leakage rate ............................................................. 47
Gas pressure, checking .......................................... 64, 128
Gas pressure, monitoring.............................................. 128
Gas quality, checking .................................................... 128
Gas work after power-frequency voltage test .................. 95
Gas-insulated bar, busbar component ........................... 120
H
High-voltage connections, checking.............................. 130
I
Indicators ..................................................................... 146
Information to Siemens before delivery........................... 59
Installation material........................................................ 62
Installation with gas work ............................................... 84
Installation work, checks............................................... 143
Installation, voltage transformer 4MT3 ........................... 97
Installation, auxiliary means............................................ 61
Installation, busbar voltage transformer .......................... 96
Installation, cable bracket ............................................... 80
Installation, cables with plugs ....................................... 131
Installation, earthing busbar ........................................... 83
Installation, end wall .................................................... 138
Installation, final work .................................................. 131
Installation, low-voltage cables ..................................... 131
Installation, panel connections ....................................... 87
Installation, preparing..................................................... 59
Installation, solid-insulated bars ...................................... 95
Installation, tests .......................................................... 128
Installation, tools ............................................................ 61
Installation, voltage transformer 4MU4 ......................... 101
Installation, voltage transformer 4MT7 ......................... 104
Insulating gas SF6........................................................... 44
Integrated varistor .......................................................... 44
Interlocks ..................................................................... 173
IP31D ........................................................................... 133
864-5091.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • Revision 06
L
Leakage test ................................................................. 128
Lubricants .................................................................... 207
M
Maintenance recommendation ..................................... 203
Maintenance unit ........................................................... 92
Maintenance, bolted joints and seals............................. 204
Maintenance, safety instructions................................... 203
Maintenance,
vacuum circuit-breaker operating mechanism ............... 205
Make-proof busbar earthing switch, description .............. 27
Make-proof earthing switch .......................................... 168
Make-proof earthing switch, closing ............................. 169
Make-proof earthing switch, control elements and
indicators ..................................................................... 168
Make-proof earthing switch, opening............................ 170
Manual closing, three-position disconnector ................. 154
Manual opening, three-position disconnector ............... 155
Motor operating mechanism, vacuum circuit-breaker ...... 43
Mounting the cable bracket ............................................ 80
N
Non-disconnectable busbar voltage transformers,
removal........................................................................ 107
O
Operating mechanism box, design .................................. 23
Operating mechanism box, function ............................... 23
Operating times.............................................................. 42
Operation ..................................................................... 146
Overview, busbar covers ................................................. 49
P
Packing .......................................................................... 63
Panel connection ............................................................ 32
Panel design ................................................................... 20
Panel earthing ................................................................ 83
Panel types ..................................................................... 11
Panel versions................................................................. 12
Partition class ................................................................. 46
Personal protection........................................................... 7
Personal protective equipment (PPE)................................. 7
Phase sequence .............................................................. 47
Power-frequency voltage test.......................................... 84
Power-frequency voltage test on site............................... 93
PPE................................................................................... 7
Protective equipment........................................................ 7
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