Disc Suspension Porzellanisolator

Suspension (Disc) Insulatorsare used in EHV, UHV and HVDC transmission lines. Available for any voltage and contamination level by changing number of insulators Mechanical strength up to 120kN High reliability through accumulated technology Excellent long-term performance Ball&socket type, clevis&pin type;normal&Anti-pollution typeSpecifications: StandardGB (China National Standard)TypeXP-70CXP-70TXP-100XP-120XHP-70XHP-100XHP-120Main Dimensions (mm)Unit Spacing(H)146146146146146146146Nominal Diameter(D)255255255255255255255Coupling Type16161616161616Min. Creepage Distance (mm)295295295295432432432Rated Electromechanical Failing Load (KN)707010012070100120Impact Strength (cN.m)5655656786786710Min. Lighting Full Wave Impulse Withstand (peak) Voltage (KV)100100100100120120120Min. Wet Power Frequency Withstand (r.m.s) Voltage(KV)40404040454545Power Frequency Puncture Voltage (KV)110110110110120120120Weight (KG)5.35.45.65.6789 StandardANSIClass52-152-252-352-452-552-652-9Main Dimensions (mm)Max. Unit Spacing(H)140146146146146146160Nominal Diameter(D)160200255255255255114Leakage Distance (mm)178210292292292292171Combined M & E Strength (KN)4570707011111145Mechanical Impact Strength (N.m)5.05.56.06.07.07.05.0Time Load Test Value (KN)27444444676727Power Frequency Flashover Volatge (KV) Dry60658080808060 Wet30355050505030Critical Impulse Flashover Voltage (KV) Positive100115125125125125100 Negative10011513013013013090Power Frequency Puncture Voltage (KV)809011011011011080Radio Interference VoltageTest volatge to ground (KV)7.57.5101010107.5Max. RIV at 1 MHz (μV)50505050505050 vis