1-Phase Earthing Device
Ref. SS 428 91 01, EN 61230
The device is for use on the railway’s catenary line and rail. Line clamp JK 22 is for connection to the railway’s catenary line 80-120 mm2
according to SS 24 01 21 and DIN 43 141, return line Cu 130 mm2 or Al 212 mm2 or other circular, non-flexible conductors with a diameter of 14 – 19 mm. Insulating poles MGV, MDV/MSV, MTV and operating socket JGS are used to operate the line clamp. The line clamp conducting parts are made of aluminium bronze and steel components are made of stainless steel. The line clamp has stainless steel spring washers to insure constant contact pressure. The earthing cable, made of highly flexible ESTPR-insulated copper strands, has sealed cable connections, which prevent humidity from penetrating the cable. The earthing cable is connected with a cable lug to the clamps. Earth clamp JK 250 has a loop of surface treated spring steel. Other steel components are made of stainless steel. The screw is insulated. Earth clamp JK 250 is connected to the base of the rail, which allows rail vehicles to pass. JK 250 is intended only for short-term use to the rail.
E-nr:
E-No.
|
Type
|
Line Clamp
|
Cable shoe/
Earth Clamp
|
Earthing cable
area
mm2
|
Rated Current
max. kA/1s
|
Weight kg/unit
|
E1658846 | JK22-JK250 |
JK 22
|
JK 250 |
25-70
|
11,5 | 2,1* |
* 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 |