Common drop-out fuse (RWH 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) Installation site                            Outdoors

Main technical parameters

Rated voltage: 12kV

Rated current: 100A, 200A

Rated short circuit current: 12.5kA

Mechanical life up to: 500 times