3-Phase Earthing Device
Ref. SS 428 91 01, EN 61230
Line clamps JK 80 and JK 81 are for connection to ball-bolts. Insulating poles MGV, MDV/MSV and operating socket JGS are used to operate the line clamps. The line clamps conducting parts are made of aluminium-bronze. Steel components are made of stainless steel. The line clamps have stainless steel spring washers to ensure constant contact pressure. The earthing cable is connected by compression to the ear
thing device. The earthing cable, made of highly flexible ESTPR-insulated copper strands, has sealed cable connections, which prevent humidity from penetrating the cable. Earth clamp JK 79 is for connection to ball-bolts Ø 25-30 mm.
E-nr:
|
Type
|
Line Clamp
|
Ball Bolt
Ø mm
|
Cable shoe/
Earth Clamp
|
Earthing cable area
mm2
|
Rated Current
max. kA/1s
|
Weight kg/unit
|
| JK81-JK79 | JK 81 | 25-30 |
JK 79
|
25-150 | 34,0 | 5,0* |
*Incl. cable connection for max earthing cable area.
Earthing Cables for Earthing- and Short-circuiting devices
|
Type
|
Earthing Cable area
mm2
|
Rated
current
kA/1s
|
Weight
kg/m
|
| ESTPR25 |
25 |
5,7 |
0,3 |
| ESTPR35 | 35 |
8,0 |
0,4 |
| ESTPR50 |
50
|
11,5 |
0,5 |
| ESTPR70 | 70 |
16,0 |
0,7 |
| ESTPR95 | 95 |
21,0 |
1,0 |
| ESTPR120 | 120 |
27,0 |
1,2 |
| ESTPR150 | 150 |
34,0 |
1,5 |
| ESTPR185 | 185 |
42,5 |
1,9 |
