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U70BS 127/255/320 Glass Insulator
70kN glass insulator is a component used to suspend power lines on high-voltage poles or towers.To secure the power line like a safety rope: It withstands the weight of the wire itself and the immense tension from wind and ice, ensuring line stability.To isolate electrical current like a firewall: It prevents high-voltage electricity from directly grounding through the tower, ensuring safe power transmission.
- Brand: QOCI
- Catalog ID: UG70B127/320N
- Type: Standard Type
- Material: Glass Dielectric , Forged steel cap & pin
- Place of Origin: Jiangxi
Product Information
IEC Stand :U70BS
| U | Disc Suspension Insulator |
| 70 | Mechanical failing load of 70kN |
| B | Ball And Socket Type |
| S | Long pin 127mm |

Dimensional data
Spacing(S) | 127mm |
Diameter(D) | 255mm |
Creepage distance (L) | 320mm |
Socket coupling | 16mm |
Mechanical values
Mechanical failing load | 70kN |
Mechanical residual strength | 56kN |
Electrical Values
Wet power frequency withstand voltage | 40kV |
Dry lightning impulse withstand voltage | 100kV |
Power frequency puncture voltage | 130kV |
Radio-influence Voltage
RIV test voltage rms to ground Maximum RIV at 1000 kHz: | 10 kV 50 μV |
Corona visual lest P/C | 18/22 KV |
Power frequency electric arc voltage | 0.12s/20kA |
Packing information
Net weight | 3.5kg |
Carton Quantity: | 6pcs |

Industry Standard(s)
Manufactured accordance with IEC60383-1:1993,MOD / GB/T1001.1




