Polyphase short-circuiting device for LV overhead line with bare conductors – applied from the ground
.
Application: from the ground, with a telescopic insulating stick of 9 m extended length, PTU-AS-400-6-c type (see page 11), in the following sequence of operations:
1. Using the earthing subassembly, one conductor of the line is earthed,
2. Using the short-circuiting subassemblies, the phase and null conductors are short-circuited, starting with the conductor earthed in the previous operation.
Application: by hanging the automatic self-locking clamp (CAA) on the conductor, followed by pulling down the clamp.
Components :
Short-circuiting subassembly for 3 conductors provided with:
-Automatic self-locking clamp (CAA) – 3 pieces
-Short-circuiting cable – 2 pieces
Short-circuiting subassembly for 2 conductors provided with:
-Automatic self-locking clamp (CAA) – 2 pieces
-Short-circuiting cable – 1 piece
Earthing subassembly provided with:
-Automatic self-locking clamp (CAA) – 1 piece
-Earthing cable – 1 piece
-Earthing clamp – 1 piece
Clamp applicator (PAS/C) – 1 piece
Removal fork (CDAU/C) – 1 piece
Mobile earthing rod – 1 piece
Packing: waterproof bag
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Technical characteristics |
Value |
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Short-circuiting and earthing cable cross-section Sf, Sp (mm2 |
16 |
25 |
35 |
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Nominal short-circuit current for t = 1 s Isc (kA) |
4 |
6,25 |
8 |
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Shock (peak) nominal current for t = 0,02 s Isd (kA) |
10 |
15,63 |
20 |
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Test short-circuit current for t = 1 s (kA) |
4,6 |
7,2 |
9,2 |
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Shock (peak) nominal current for t = 0,02 s (kA) |
11,5 |
17,97 |
23 |
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Power factor (according to SR EN 61230) |
2,5 |
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Phase cable length If (m) |
max. 4 |
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Earthing cable length Ip (m) |
max. 17,5 |
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Conductor cross-section where the phase clamp can be applied (mm2) |
5 – 32 |
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Components :
The short-circuiting subassembly for 3 conductors is provided with:
- Automatic self-locking clamp (CAA) – 3 pieces
- Short-circuiting cable – 2 pieces
The short-circuiting subassembly for 2 conductors is provided with:
- Automatic self-locking clamp (CAA) – 2 pieces
- Short-circuiting cable – 1 piece
- The earthing subassembly is provided with:
- Automatic self-locking clamp (CAA) – 1 piece
- Earthing cable – 1 piece
- Manual earthing clamp – 1 piece
- Clamp applicator (PAS/C) – 1 piece
- Removal fork (CDAU/C) – 1 piece
- Mobile earthing electrode (peg) – 1 piece
