| Application: | High-voltage, High-temperature |
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| Material: | Glass |
| Structure: | Suspension Insulator |
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Diameter: 178mm | Height: 110mm |Creepage distance:190mm
| IEC designation | U40B/110 | |
| Mechanical failing load | kn | 40 |
| Diameter D | mm | 178 |
| Height H | mm | 110 |
| Creepage distance L | mm | 190 |
| Socket coupling | mm | 11 |
| Wet power frequency withstand voltage | kv | 25 |
| Dry lightning impulse withstand voltage | kv | 50 |
| Power frequency puncture voltage | kv | 90 |
| Radio interference voltage(10kV 1MHz) | μv | 50 |
| Corona visual test | kv | 18/22 |
| Power frequency electric arc voltage | ka | 0.12s/20kA |
| Impulse puncture voltage | P.U | 2.8 |
| Net weight per unit | kg | 2.1 |
Jiangxi QOCI Electric Co.,Ltd.has been specialized in research and development of latest high-strength functional glass and power transmission insulators,which is the qualified supplier for State Grid Corporation of China and Southern State Grid Corporation of China,and is a participating unit of product standard formulation of the National Insulator Standard Committee.The main products type are :standard-type insulator,antipollution-type insulator,aerodynamic type insulator,multi-umbrella type insulator,ground-wires type insulator,post insulator for line,pin insulator.Products are mainly used for transmission line insulation, suspension, support, tension conductors.Our products are divided into 5 major series: the standard type 40-550kN,filth-resistant type 70-420kN,aerodynamic type 120-300kN,multi-umbrella type 120-300kN,and ground circuit type,able to be used for line voltage from 10kV~1000kV.
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