CA SDB4-12

Special shaped busbar bushing, Connnector Bushing

12kV 630A

Busbar bushing


CA SDB4-12/630A

630A-1250A Special shaped busbar bushing is designed for outdoor Power Cable Sector and Underground Power Cable Sector. It is suitable for branch box,surround power supply branch cabinet of European style,and can connect with 630A Shield Fore-Connector.


CA SDB4-12/630A

Continuous voltage ratings   
ProjectParameter (15kV)Parameter (24kV)Parameter (35kV)
Continuous operating voltage8.7kV/15kV12/20kV 18/20kV 26kV/35kV
Ac  withstand voltage45kV/1min55kV/5min117kV/5min
DC withstand voltage53kV/15min78kV/15min104kV
1.5/50 u s Impulse withstand voltage95kV125kV215kV
<10PCPartial discharge voltage15kV20 kV45kV
Current rating   
Project250AMP 600AM P
Heat stable current16kA1s 30kA2s
Peak withstand current40 kA 105kA
Behaviour Of Electricity  
DescriptionUnitParameters (kV)
Continuous operating voltagekV35
Impulse withstand voltagekVp1
Rated voltagekV73.0≤U1mADC≤s77.5
Residual currentmA≤50
lmpulse 2msA170/18 times
withstand voltage of insulation S&ftSI&Seal testingkV82

Order Number

DescriptionReference No.
12kV 630A Special shaped busbar bushingCA SDB4-12/630