PBwel Substation Suspended busbar and Earthing Spigots

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PBwel Suspended Earthing Spigots

The Spigot is a clamp and spigot system made of aluminium that can be permanently installed on new or existing substation busbars. It can hold up to five PBwel line end clamps with a diameter of 38mm, eliminating the need for the heavier 115mm to 250mm clamps.

The Suspended Earthing Spigot is designed to be installed easily, either during the initial erection of a new substation busbar system or subsequently, as an enhancement to an existing system. It comprises a range of three clamps machined to fit any of the busbar sizes currently used in substations throughout the UK, from 115mm to 250mm diameter.

The appropriately machined clamp is supplied in two halves that are bolted together around the busbar using the supplied fasteners that are tightened to prescribed torque settings. Its lightweight makes it possible for one person to install. A 38mm diameter spigot and corona shield, common to all spigot clamps and busbar sizes, is then bolted onto the clamp. This is positioned horizontally to cater for busbars at any angle from horizontal to 60°, before tightening to a prescribed torque setting.

The Suspended Earthing Spigot fully conforms to the requirements of the UK Electricity Supply Industry and has successfully completed:

Performance Characteristic

Suspended Busbar types and part numbers

Product Preference Body Part Number Spigot Part Number Busbar Size (mm)
CE75/250
EFF-16771
EFF-16780
250
CE75/220
EFF-16772
EFF-16780
220
CE76/200
EFF-16773
EFF-16780
200
CE76/190
EFF-16774
EFF-16780
190
CE76/160
EFF-16775
EFF-16780
160
CE77/140
EFF-16776
EFF-16780
140
CE77/127
EFF-16777
EFF-16780
127
CE77/120
EFF-16778
EFF-16780
120
CE77/115
EFF-16779
EFF-16780
115

* Note: A Suspended Busbar requires both a body and spigot assembly as shown upon the chart.

Customer Benefits

* National Grid Registered / 400kV Earth Spigot / EGICode:BC4P0001

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PBwel is the leading designer, manufacturer and supplier of quality electrical safety products.

PBwel is a globally recognised designer, manufacturer and supplier of temporary portable earthing, voltage detectors, Buchholz relays and electrical safety products.

With a heritage spanning over eighty years, and world-class experience in equipment designed for the safe maintenance of power systems, PBwel provides customers with high-quality service, reliable solutions and technical expertise.

PBwel Team
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