U70BL 146/255/320 Glass Insulator
Product Information
IEC Stand :U70BL
| U | Disc Suspension Insulator |
| 70 | Mechanical failing load of 70kN |
| B | Ball And Socket Type |
| L | Long pin 146mm |
Dimensional data
Spacing(S) | 146mm |
Diameter(D) | 255mm |
Creepage distance (L) | 320mm |
Socket coupling | 16mm |
Mechanical values
Mechanical failing load | 70kN |
Mechanical residual strength | 56kN |
Electrical Values
Wet power frequency withstand voltage | 40kV |
Dry lightning impulse withstand voltage | 100kV |
Power frequency puncture voltage | 130kV |
Radio-influence Voltage
RIV test voltage rms to ground Maximum RIV at 1000 kHz: | 10 kV 50 μV |
Corona visual lest P/C | 18/22 KV |
Power frequency electric arc voltage | 0.12s/20kA |
Packing information
Net weight | 3.6kg |
Carton Quantity: | 6pcs |
Industry Standard(s)
Manufactured accordance with IEC60383-1:1993，MOD / GB/T1001.1
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