70kN U70b IEC Standard Type Insulators Lines suspension Gass Disc Isolator
Each unit glass insulator is constructed of a ceramic or glass disc with a metal cap and pin cemented to opposite sides. To make defective units obvious, electric insulator glass units are designed so that an overvoltage causes a puncture arc through the glass instead of a flashover. The glass is heat-treated so it shatters, making the damaged unit visible. However the mechanical strength of the unit is unchanged, so the disc insulator string stays together.
Technical Date
| Type | Diameter (mm) | Height (mm) | Creepage Distance (mm) | SML (kN) | Mechanical Routine Test (kN) | Socket coupling (mm) | Wet Power Frequency Withstand Voltage(kV) |
| 178 | 110 | 185 | 40 | 20 | 11 | 25 | |
| U40B | 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) |
| 50 | 2.8 | 90 | 50 | 18/22 | 0.12s/20kA | 2.1 |
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.
