1. Description
CKWB is a three-phase AC smart outdoor vacuum breaker use vacuum interrupter for arc extinguishing and SF6 gas for insulation. It can work in the range of rated voltage maximum up to 24kV.
2. Working Condition
2.1 Ambient air temperature: -45℃～+40℃,daily range of temperature: diurnal variation 25℃
2.2 Relative humidity: daily average data ≤95%, monthly average data ≤90%
2.3 Seismic capacity: ≤magnitude 8, horizontal acceleration ≤ 0.4g, vertical acceleration ≤ 0.2g
2.4 Altitude: ≤3000m
2.5 Pollution classification: IV.
2.6 Wind speed: ≤35m/s
2.7 Applicable in the places without obviously pollution, fire, explosion risk and violent vibration.
(Exceeding above working condition is available as customized product)
3. Standard
---- GB1984-2003
---- GB/T11022-1999
---- GB/T11023-1989
---- GB311.1-1997
---- DL/T593-2006
---- DL/T402-2007
---- GB/T3309-1989
---- DL403-2000
---- IEC62271
