.jpg)
Single-phased earthing device for round conductors – automatic clamp CA
Single-phased earthing device for round conductors - automatic clamp CA
Code: Msp – CA – Sp/lp – O/p
The single-phased earthing device is equipped with an automatic phase clamp (“CA” type) which can be fixed on round conductors in HV/MV substations.
The “CA” automatic clamp contains a moulded body made of alluminium alloy, a special trigger mechanism and a tightening screw with a bayonet terminal for coupling with PMU insulating sticks.
|
Parameter |
Value |
||||||
|
Earthing cable section Sp (mm2) |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
|
Nominal short-circuiting current for t = 1s Isc (kA) |
3,5 |
6 |
8 |
12 |
16 |
20 |
30 |
|
Nominal peak currrent for t = 0,02 s Isd (kA) |
8,75 |
15 |
20 |
30 |
40 |
50 |
75 |
|
Testing shortcircuiting current for t = 1s (kA) |
4,6 |
6,9 |
9,2 |
13,8 |
18,4 |
23 |
34,5 |
|
Testing peak current for t = 0,02 s (kA) |
11,5 |
17,25 |
23 |
34,5 |
46 |
57,5 |
86,25 |
|
Peak factor |
2,5 |
||||||
|
Earthing cable length Ip (m) |
max. 8 |
||||||
|
Thickness of the bus bar on which the phase clamp can be applied (mm) |
17 ÷ 32 |
||||||
The single-phased short-circuiting device contains:
– automatic phase clamp – 1 piece;
– earthing cable- 1 piece;
– earthing clamp – 1 piece.
The earthing device is delivered in sets of three pieces in a transport bag/box.