| Application: | High-voltage, High-temperature |
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| Material: | Semiconductor |
| Structure: | Standard Type Insulator |
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Diameter: 255mm | Height: 146mm | Creepage distance:320mmU70BS is a glass insulator used for high-voltage transmission lines
Material: Tempered glass
Rated mechanical load: 70kN (approximately 7 tons)
Rated voltage: usually used for voltage levels of 35kV and above
Structure: Suspended structure, composed of iron cap, tempered glass umbrella plate, and steel feet.
| IEC designation | U70BS/127 | U70BL/146 | |
| Mechanical failing load | kn | 70 | 70 |
| Diameter D | mm | 255 | 255 |
| Height H | mm | 127 | 146 |
| Creepage distance L | mm | 320 | 320 |
| Socket coupling | mm | 16 | 16 |
| Wet power frequency withstand voltage | kv | 40 | 40 |
| Dry lightning impulse withstand voltage | kv | 100 | 100 |
| Power frequency puncture voltage | kv | 130 | 130 |
| Radio interference voltage(10kV 1MHz) | μv | 50 | 50 |
| Corona visual test | kv | 18/22 | 18/22 |
| Power frequency electric arc voltage | ka | 0.12s/20kA | 0.12s/20kA |
| Impulse puncture voltage | P.U | 2.8 | 2.8 |
| Net weight per unit | kg | 3.5 | 3.6 |
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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