



Product Details
Suspension Insulator
Ac Disc Porcelain Insulators (Normal Type)
Standard: IEC60383
Voltage:6-33kV
Suspension insulators are available for ball & socket or clevis-tongue coupling. Standard caps are constructed of hot-dip galvanized malleable iron.
Cotter keys for locking ball & socket and clevis pin connections are stainless steel.
The normal type disc suspension insulators include standard type and large creepage distance type, which are widely used in clean area and light pollution area.
IEC CLASS | U70BL | U70C | U80BL | / | U100BL | U120B | |
Type | XP-70 | XP-70C | XP-80 | XP-90 | XP-100 | XP-120 | |
Porcelain Nomimal Diameter,D.mm | 255 | 255 | 255 | 255 | 255 | 255 | |
Unit Spacing,H.mm | 146 | 146 | 146 | 146 | 146 | 146 | |
Standard Coupling Size | 16 | 16C | 16 | 16 | 16 | 16 | |
Nominal Creepage Distance,mm | 295/320 | 295 | 295 | 295 | 295/320 | 295/320 | |
Rated E&M Failing load,kN | 70 | 70 | 80 | 90 | 100 | 120 | |
Routine Tension Load,kN | 35 | 35 | 40 | 45 | 50 | 60 | |
Impact failing load,N-m | 6 | 6 | 6 | 6 | 7 | 7 | |
Power Frequency Withstand Voltage | Dry, kV | 70 | 70 | 70 | 70 | 70 | 70 |
Wet, kV | 40 | 40 | 40 | 40 | 40 | 40 | |
Dry Lightning Impulse Withstand Voltage, kV | 100 | 100 | 100 | 100 | 100 | 100 | |
Power Frequency Puncture Voltage,kV | 110 | 110 | 110 | 110 | 110 | 110 | |
Radio Influence Voltage Data | Test Voltage to Ground, kV | 10 | 10 | 10 | 10 | 10 | 10 |
Max. RIV at 1000 KHz, uV | 50 | 50 | 50 | 50 | 50 | 50 | |
Net Weight,Each, Approx., kg | 4.6 | 4.8 | 4.9 | 5.3 | 5.7 | 6 |
Each suspension shell undergoes rigorous electrical testing before and after assembly before being shipped.