High Voltage Wraparound Creepage Extender for Insulators (GHCE)

About High Voltage Wraparound Creepage Extender for Insulators (GHCE)

Insulators and bushings in polluted locations, near the coast, around industry and cement plants, or where birds foul the sheds, build up a conductive surface layer. In fog, dew or light rain, leakage current flows across that layer and can end in a pollution flashover and an outage. Washing or replacing the insulators is costly.

Gala's high voltage wraparound creepage extender is a split, ring-shaped skirt that is opened, wrapped around an existing insulator or bushing and seated on one of its sheds. It seals to the porcelain or glass and drives leakage current out around its wider skirt edge, adding creepage distance and easing electrical stress on the original shed without taking the insulator out of service for replacement. Several extenders can be fitted on one insulator.

The extenders are made from a UV-stable, track-resistant cross-linked polyolefin in red. The standard range covers inner diameters from 110 mm to 372 mm, and each size is defined by its inner diameter (D1), collar diameter (D2) and skirt diameter (D3). Other sizes can be developed against order.

Manufactured by Gala in India. Datasheet and size selection on request.

Specifications

• Brand: Gala
• Product type: Wraparound creepage extender (split skirt, cold fitted)
• Material: UV-stable, track-resistant cross-linked polyolefin
• Colour: Red
• Size range: Inner diameter 110 mm to 372 mm; skirt diameter 292 mm to 564 mm
• Application: Adding creepage distance to porcelain and glass insulators and bushings against pollution flashover
• Installation: Opened at the split, wrapped around the insulator and seated on a shed
• Country of origin: India

Sizes

• GHCE-1 | D1 372 mm | D2 430 mm | D3 564 mm
• GHCE-2 | D1 130 mm | D2 163 mm | D3 310 mm
• GHCE-3 | D1 110 mm | D2 153 mm | D3 292 mm
• D1 inner diameter, D2 collar diameter, D3 outer skirt diameter.

Applications: Electricity transmission and distribution substations, switchyards, coastal and industrial-area lines, cement and chemical plant substations, solar and wind plant substations, utilities and EPC contractors