HV glass suspension insulator of U40B type

Technical Specifications
Insulator type IEC U40B
 Minimum mechanical failing load kN 40
Minimum mechanical residual strength kN 32
Diameter of the insulating part, D mm 175
Spacing, H mm 110
Nominal creepage distance mm 190
 Ball and socket coupling, d (IEC 60120) мм 11
Puncture voltage in insulating medium kV 110
50 Hz withstand voltage (dry) kV 55
50 Hz withstand voltage (wet) kV 33
Dry lightning impulse withstand voltage 1.2/50 (+/-) kV 70/70
Impulse puncture test voltage in air kV 200...220
Radio interference voltage at 0.5 MHz dB 60
kV 20
dB 86
kV 25
Weight kg 1.7
All technical requirements and testing are in accordance with IEC standards.