1.Technical Features
---- Compact structure
---- Safe and reliable
---- Flexible design and reasonable strucutre
---- Vacuum circuit breaker is installed with three-phase (or two-phase) disconnector at upper part and earthing switch (or disconnector) at lower part.
2. Working Condition
2.1 Ambient air temperature: -25℃～+40℃
2.2 Ambient humidity:
---- relative average daily humidity: ≤95%
---- relative average daily water vapor pressure: ≤2.2kPa
---- relative average monthly humidity: ≤90%
---- relative average monthly water vapor pressure: ≤1.8kPa
2.3 Altitude: ≤1000m
2.4 Earthquake intensity: ≤magnitude 8
2.5 Applicable in the places without obviously polluted by dust, smoke, corrosive or flammability gas, vapors or salt spray.
2.6 Severity in condensation and pollution condition: according to level I of GB3906 standard.
Remak:
(1) Please install heater to avoid condensation when the relative humidity is more than 70%.
(2) Exceeding above working condition is available as customized product.
3. Standard
---- GB3906-2006
---- GB/T11022-1999
---- GB1984-2003
---- GB1985-2004
---- GB/T16927-1997
---- DL/T404-2007
---- DL/T403-2000
---- JB/T3855-2008
---- IEC60694-1996
---- IEC60056-2001
