3-Phase Earthing Device
Ref. SS 428 91 01, EN 61230
Line earthing device JSKL3-SQL is for use on overhead transmission lines, low and high voltage 0.4 – 52 kV. The device is equipped with quick-lock clamp JSKL-SQL. This clamp is tightened against the conductor with just one turn and can be placed diagonally to the line, which significantly simplifies application. Insulating pole MRS, is used to operate the line clamps.
Line clamp’s clamping range: 1-25 mm (Cu 10 mm2 – FeAl 329 mm2).
The device has a rubber insulated, bayonet type connector fitting for connecting alternative earthing devices such as JSKL1-SQL and JSKL1-JQL and earthing device JK238-DXF, JK250-DXF.
The line clamps conducting parts are made of hardened AlSi-alloy.
Steel components are surface treated. 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 to the clamp with a cable lug.
E-nr:
E-No.
|
Type
|
Line Clamp
|
Earthing cable area
mm2
|
Rated Current
max. kA/1s
|
Weight kg/unit
|
E1658923 | JSKL3-SQL/25 | JSKL-SQL | 25 | 5,7 | 5,5 |
E1658924 | JSKL3-SQL/35 | JSKL-SQL | 35 | 8,0 | 6,5 |
E1658925 | JSKL3-SQL/50 | JSKL-SQL | 50 | 11,5 | 7,3 |
E1658926 | JSKL3-SQL/70 | JSKL-SQL | 70 | 16,0 | 8,3 |
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 |