
Glass Suspension Insulators
Toughened glass disc insulators for transmission line suspension and tension strings, from 40kN to 160kN.
3 products
Every Glass Suspension Insulators We Make

Aerodynamic Toughened Glass Suspension Insulator XYAY Series
- Rated Mechanical Failing Load 120 kN
- Nominal Creepage Distance 365 mm
- Power Frequency Puncture Voltage 130 kV

U40B Toughened Glass Disc Insulator 40kN
- Creepage Distance 185 mm
- Socket Coupling 11 mm
- Wet Power Frequency Withstand Voltage 25 kV

U70B Toughened Glass Disc Insulator For 33kV Lines
- Diameter 255 mm
- Creepage Distance 320 mm
- Socket Coupling 16 mm
Problems this range solves
What Buyers Come To Us With
- Punctured discs that a ground or aerial patrol cannot identify
- Pollution flashover on strings that cannot be washed often enough
- Coupling mismatch between new discs and installed string hardware
- String length set without reference to creepage per disc
Core advantages
What The Range Gives You
- U-series from U40B at 40kN through U160B at 160kN
- Creepage per disc from 185mm to 400mm
- Aerodynamic profile discs that shed wind-blown dust between washes
- Mechanical routine testing on every disc, from 20kN to 80kN by rating
Who it is for
Suited To
- Transmission line contractors
- Utility line engineering teams
- Project distributors supplying string hardware
Application scenarios
Where It Is Used
- Suspension and tension strings on transmission lines
- Desert and coastal corridors with heavy deposits
- Re-insulation of lines with a flashover history
- Replacement of individual failed discs
Questions
Glass Suspension Insulators Questions
Why glass rather than porcelain?
A punctured toughened glass disc shatters and is visible from the ground during a patrol. A punctured porcelain disc usually looks intact and has to be found by instrument.
Which ratings do you supply?
U40B at 40kN, U70B at 70kN, U100B at 100kN, U120B at 120kN and U160B at 160kN, plus the aerodynamic XYAY series.
What creepage does each disc contribute?
185mm on the U40B, 320mm on the U70B through U120B and 400mm on the U160B.
What routine test is applied?
A mechanical routine test on every disc, at 20kN for the U40B rising to 80kN for the U160B.
Which standard applies?
The aerodynamic series is specified and tested in accordance with IEC 60383, and the U-series follows the IEC designations.
Talk To An Engineer About Glass Suspension Insulators
Send the drawing, the pollution class at the site, or a photograph of the part you are replacing. A reply comes back within 24 hours.