HV glass suspension insulator of U20BP type

Technical Specifications
Insulator type IEC U20BP
Minimum mechanical failing load kN 120
Minimum mechanical residual strength kN 96
Diameter of the insulating part, D mm 280
Spacing, H mm 127 146
Nominal creepage distance mm 445
Ball and socket coupling, d (IEC 60120) mm 16
Puncture voltage in insulating medium kV 130
50 Hz withstand voltage (dry) kV 82
50 Hz withstand voltage (wet) kV 50
Dry lightning impulse withstand voltage 1.2/50 (+/-) kV 125/125
Impulse puncture test voltage in air kV 350...385
Radio interference voltage at 0.5 MHz dB 60
kV 20
dB 86
kV 30
Weight kg 5.66
All technical requirements and testing are in accordance with IEC standards.