HV glass suspension insulator of U70C type

U70C
Technical Specifications
Insulator type IEC U70C
 Minimum mechanical failing load kN 70
Minimum mechanical residual strength kN 56
Diameter of the insulating part, D mm 255
Spacing, H mm 146
Nominal creepage distance mm 320
 Ball and socket coupling, d (IEC 60120) mm 16C
Puncture voltage in insulating medium kV 130
50 Hz withstand voltage (dry) kV 70
50 Hz withstand voltage (wet) kV 45
Витримувана імпульсна напруга 1,2/50 +/- kV 105/105
Impulse puncture test voltage in air kV 280...310
Radio interference voltage at 0.5 MHz dB 60
kV 20
dB 86
kV 25
Weight kg 38
All technical requirements and testing are in accordance with IEC standards.