On Load Break Switch(Disconnector)
++++General
FW1 type Outdoor on load break switch (switch disconnector) contained in this list are destined to switch stub lines and ring main lines or transformers( It can be equipped with MV HRC fuse links as short circuit protection function) or for switching under on load conditions.
FW1 type switch comply with IEC/IEEE and DVE-recommendation standards. Especially comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC-129.
 
++++Service environment
 
a)  Air temperature: Maximum temperature: +75ºC; Minimum temperature:-45ºC
 
b)  Humidity: Monthly average humidity 95%; Daily average humidity 90% .
 
c) Altitude above sea level: Maximum installation altitude: 2500m
 
d) Ambient air not apparently polluted by corrosive and flammable gas, vaporetc.
 
e)  No frequent violent shake

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