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DEVICE
UNP-10B ‘’BOOMERANG’’ FOR SHORT-CIRCUIT THROWING
ON UP TO
10
kV OVERHEAD LINES WIRES
The “Boomerang” is designed for emergency earthing of overhead lines by applying a connected to the ground short-circuit between wires in all cases requiring instant voltage disconnection of overhead lines to rescue people exposed to alive wire. The device comprises the active part (operational), earthing part with a cramp, insulating wire weighted at the end, and earth rod EZ-1. Permissible operating temperature is from –25 oC to +55oC, at air relative humidity up to 80% at 25 oC. |
SPECIFICATIONS |
|
| PARAMETERS | BOOMERANG |
Nominal Voltage, kV |
up to 10 |
Short-circuit part cable section, mm2 |
70 |
Short-circuit part cable length, m |
6,5 |
Earthing part cable length, m |
15 |
Earthing part cable section, mm2 |
10 |
Insulating wire length, m |
25 |
Insulating wire section, mm2 |
4 |
Withstanding thermal current, kA/3sec |
1,6 |
Withstanding dynamic current, kA |
4 |
|
Sizes (in packing), mm: - Bag |
400 x 260 x 250 |
- Cover |
O 35 x 860 |
Mass of set, kg |
19 |
Mass of weight, kg |
0,2 |