Live line work
Transpower temporarily suspended live line work on the National Grid in May 2017, while it assessed the practical implications of the new EEA Guide for the Assessment of Work Methods to Undertake High Voltage Overhead Line Work.
Following an investigation exploring the risk associated with different work activities, Transpower lifted the suspension in September 2018. Transpower has a series of live line techniques available for Service Providers, a full list is available below.
Contact us for further information.
Live line work techniques
The following work activities may be completed using live line work procedures.
Work activities (110kV and 220kV only except where stated) |
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Live line helicopter conductor and joint testing:
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Close approach:
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Washing of insulators on energised lines by helicopter |
Suspension pole replacement |
Suspension re-insulation; Horizontal post insulator replacement; CA lifting inspection (suspension hot-end hardware); Armour rod replacement |
Full tension splice rod installation (220kV only) |
Non-load bearing hot stick or bare hand work, ladders/rope access:
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