Load drop type fuse (RWHF composite insulator)

Product use and characteristics

RWH (C) drop-out fuses are the most common short-circuit protection switches in distribution line branches and distribution transformers. It has the characteristics of economy, easy operation, strong adaptability to outdoor environment, etc., and is widely used in distribution lines and distribution transformers as protection and equipment casting and cutting operation.

Environmental conditions of use

a) Ambient temperature -45ºC ~ +45ºC;

b) Altitude ≥3000m;

c) Wind speed is not more than 34m/s;

d) The daily temperature difference is not more than 25ºC;

e) Sunshine intensity is not more than 0.1w/cm;

f) The monthly average relative humidity is not more than 90%;

g) The seismic acceleration is not more than 0.2g horizontally and 0.1g vertically;

h) the ice thickness is not more than 10mm;

i) The degree of air pollution does not exceed Class IV of GB/T5582;

j) Outdoor installation.

Main technical parameters

Rated voltage: 12kV

Rated current: 100A, 200A

Rated short circuit current: 12.5kA

Mechanical life up to 500 times