High Voltage Toughened u70bs Glass Insulator 120kn Suspension Disc Insulators
Product Description
Each glass insulator unit is constructed of a ceramic or glass disc with a metal cap and pin cemented to opposite sides. To make defective units obvious, electric glass insulator units are designed so that an overvoltage causes a puncture arc through the glass instead of a flashover. The U70BS glass suspension disc insulators is heat-treated so it shatters, making the damaged unit visible. However the glass insulator 120kN mechanical strength of the unit is unchanged, so the glass insulator string stays together.
Technical Date
Type |
Diameter(mm) |
Height(mm) |
Creepage Distance |
SML(kN) |
Mechanical Routine Test |
Socket coupling(mm) |
Wet Power Frequency Withstand Voltage(kV) |
280 |
146 |
450 |
70 |
70 |
16 |
45 |
U70B |
Dry lightning impulse withstand voltage(kV) |
Impulse Puncture Voltage(P.U) |
Power Frequency Puncture Voltage(kV) |
Radio Influence Voltage(μv) |
Corona visual test(kV) |
Power frequency electric arc voltage(kA) |
Net weight per unit(kg) |
80 |
2.8 |
120 |
50 |
18/22 |
0.12s/20kA |
6.3 |
Certifications

Company Profile
Factory Direct
Wuhan Line Power transmission and transformation co., LTD. Mainly produces and sells composite insulators and accessories. Is a collection of manufacturing, processing, distribution and other business as one of the manufacturing company. The company is based on the r&d, manufacturing and sales of the complete set of composite insulator equipment.With excellent product quality, reasonable price and good service for the enterprise, won the majority of customers praise and trust.