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Installation site
|
outdoor
|
|
Ambient temperature
|
-25ºC~+40ºC
|
|
Max. daily temperature difference
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≤25ºC
|
|
Height above sea level
|
2000m(no limit for specified order)
|
|
Air humidity
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Daily average:≤95%;
month average:≤90%; |
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Wind speed
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≤34m/s
|
|
Solar radiation
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≤0.1W/cm2(fine day, noon)
|
|
Earthquake intensity
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horizontal:≤0.3g;vertical:≤0.15g
|
|
Icing thickness
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≤10mm
|
|
Creepage distance
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25mm/kV or 31mm/kV
|
|
Static load on terminal in Y-direction
|
1250N
|
|
Static load on terminal in X-direction
|
750N
|
|
Static load on terminal in Z-direction
|
1000N
|
|
No.
|
Items
|
Unit
|
Parameter
|
||
|
1
|
Rated voltage
|
kV
|
126
|
||
|
2
|
Rated power frequency withstand voltage(1min)
|
Phase-to-phase
Phase-to-ground |
kV
|
230
|
|
|
fracture
|
kV
|
230+73*
|
|||
|
3
|
Rated lightning impulse withstand voltage
|
Phase-to-phase
Phase-to-ground |
kV
|
550
|
|
|
fracture
|
kV
|
550+103*
|
|||
|
4
|
Power frequency withstand voltage(5min)under SF6 zero-gauge pressure
|
kV
|
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