Publications and resources

A factsheet on the hazards of trees and vegetation around transmission lines with reference to the horticulture industry

General information notice in relation to the Electricity (Hazards from Trees) Regulations 2003.

This brochure is a guide to safe working practices when working near our underground electricity and associated communication networks.

Tower foundation replacement involves replacing the steel at and below the level of the ground, to ensure they continue to maintain the structural integrity of the tower.

The Electrical Code of Practice sets minimum safe electrical distance requirements for overhead electric line installations/other works associated with the supply of electricity to consumers....

Over time, transmission poles may require replacement due to normal age-related wear and tear or to ensure safe ground clearances are maintained.

Helicopters are a vital part of inspecting and maintaining our 11,800 km of transmission lines  throughout the country.

We routinely check and assess the condition of that equipment to ensure the National Grid continues to provide a safe and secure power supply for the country.

Tower painting is part of our routine maintenance activities to ensure they continue to provide a reliable service over their expected lifetimes.

Tower foundation refurbishment involves reinforcing transmission tower foundations, to ensure they continue to accommodate the existing and future loadings expected in their lifetimes.