This equipment is indoor metal armoring with drawable switchgear (hereafter refer to as switchgear. 3.6-12kilovolt three phase AC 5OHz single bus bar and the single bus bar subsection system's omplete electricity distribution equipment is used in the power plant, small and medium-sized generator power transmission, industry and mining business power distribution as well aselectrical industry system's second transformer substation's electric take-over , power transmission and large-scale high pressure motor starting and so on. The purpose is to control, protect and monitor.This switch equipment is up to the standard of IEC298、GB3906 and can prevent the charge from pushing and pulling the breaker,from opening and closing the breaker,from insulation with electricity by mistaken,from earthed switch closing the breaker ,from opening the switch's interlock when it with electricity mistakenly.It can not only use with VSl vacuum circuit-breaker, but with ABB Corporation's VD4 vacuum circuit-breaker.It is indeed a kind of power distribution equipment with superior performance.
Surrounding air temperature:-10°℃～+40°℃Altitude : 1000M
Relative environment humidity: The daily relative humidity average is not higher than 95%, the monthly relative humidity average is not than higher 90%
Earthquake: The intensity does not exceed 8 degree.
The surrounding air without corrosive or flammable gas or water vapour.
Without a lot of dirtiness and regular fierce vibration,under the severe condition, the intensity meets the first kind requirement.2.special working conditions
When it is used beyond the normal environmental condition stipulated in the GB3906, the user should consult with the manufacture.