3-Phase Earthing Device
Ref. SS 428 91 01, EN 61230, EN 61235, EN 61243-1
Line earthing device JSKL3-BQL is for use on overhead transmission lines, low and high voltage 0.4 – 52 kV. The device is equipped with a quick-lock clamp JSKL-QL. This clamp is tightened against the conductor with just one turn and can be placed diagonally to the line, which significantly simplifies application. The earthing device is as JSKL3-QL but prepared for a 5:th pole.
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 an alternative earthing device such as JSKL1-QL and JSKL1-JQL and earthing device JK238-DXF, JK250-DXF. The C-rod is dividable to allow a voltage detector TAG to be connected.
The line clamps conducting parts are made of hardened AlSi-alloy. Steel components are surface treated. The insulating pole is made of fiberglass reinforced vinyl ester and is sealed. 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. As standard the earthing device is marked for 24 kV.
Case: DFO/JSKL3.
E-nr:
E-No.
|
Type
|
Line Clamp
|
Earthing cable area
mm2
|
Rated Current
max. kA/1s
|
Weight kg/unit
|
E1658937 | JSKL3-BQL/25 | JSKL-QL | 25 | 5,7 | 6,0 |
E1658938 | JSKL3-BQL/35 | JSKL-QL | 35 | 8,0 | 7,0 |
E1658939 | JSKL3-BQL/50 | JSKL-QL | 50 | 11,5 | 7,8 |
E1658941 | JSKL3-BQL/70 | JSKL-QL | 70 | 16,0 | 8,8 |
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 |