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Best High Quality Pole mounted air break switch Manufacturers - Pole-mounted Air/Load breaker switch – L&R Detail:
General
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Service and Installation Conditions
2.1.height above sea level:≤3000m
2.2.Air temperature: -40℃~+50℃
2.3.Relative humidity:Daily mean 95%
monthly average 90%
2.4.Maximum wind speed:≤34m/s
2.5.Earthquake intensity:<8 degree
2.6.Icing thickness: <10mm
2.7.Thickness of snow: <35mm
2.8.Irradiance: <0.1W/cm2
2.9.Pollution grade:Ⅲ class、Ⅳclass
2.10.Installation site:No fire disaster, explosion danger, chemical corrosion and frequent
strenuous vibration places
Model and Definitions
Technical parameters
Item
|
Unit
|
Data
|
Rated voltage
|
kV
|
12
|
24
|
36
|
Rated frequency
|
Hz
|
50/60
|
Rated current
|
A
|
400 / 630
|
Rated short-circuit withstand/breaking current |
kA
|
12.5
|
Rated short-circuit making current (peak) |
kA
|
31.5
|
Rated peak withstand current |
kA
|
31.5
|
Rated short-circuit time |
Sec
|
1
|
Mechanical Operations |
Times
|
5000
|
Power frequency withstand voltage (1 min) |
kV
|
28/32
|
50/60
|
70/80
|
Lightning impulse withstand voltage (peak) |
kV
|
76/85
|
125/145
|
170/190
|
Product detail pictures:
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