polymer housing surge arrester 69-220kv

 Surge arrester  of lightning arrester  details listed as belows:

Applications

1,Altitude <=2000mm.
2,Temperatuer:-40~+40°C.
3,supply frequency:48~62Hz.

Installation and operation

Before putting into operation, lightning arrester should accept preventive test before the coming of thunder rain season, thereinto, test for arrester without gaps are external insulation measurement, DC U1mA voltage measurement, current and resistance current measurement under AC operating voltage; arrester with series gaps should accept external insulation measurement, electric conduction current measurement, power frequency voltage discharging test; preventive rest can be omitted for lightning arrester with disconnector after being put into operation.
Power frequency withstand test for lightning arrester should not exceed the rated voltage value.
Don’t dismantle the lightning arrester randomly.
Lightning arrester with disconnector will unable to keep working after tripping operation of disconnector.
Installation of lightning arrester should be carried out according to the specifications strictly, the two side should be connected firmly and should be earthed reliably.
When installing line type arrester with series gaps, please leave enough parallel distance between it and line insulator.