We have produced a number of publications designed to:
- assist you to keep safe when working or playing around our transmission lines.
- assist you to understand our work on or over your property
This information sheet details keeping safe during recreational activities near transmission lines.
- Recreation Information Sheet [ pdf 2.61 MB ]
A factsheet on the hazards of trees and vegetation around transmission lines with reference to the horticulture industry
- Horticulture work around transmission lines [ pdf 485.09 KB ]
General information notice in relation to the Electricity (Hazards from Trees) Regulations 2003.
- Hazard from Trees Notice [ pdf 39.61 KB ]
This brochure is a guide to safe working practices when working near our underground electricity and associated communication networks.
- Underground cable safety guidelines [ pdf 1.06 MB ]
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.
- Tower Foundation Replacement [ pdf 407.02 KB ]
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.
- New Zealand Electrical Code of Practice for Electrical Safe Distances [ pdf 874.96 KB ]
Over time, transmission poles may require replacement due to normal age-related wear and tear or to ensure safe ground clearances are maintained.
- Transmission Pole Replacement [ pdf 232.28 KB ]
Helicopters are a vital part of inspecting and maintaining our 11,800 km of transmission lines throughout the country.
- Transmission Line Helicopter Operations [ pdf 517.04 KB ]
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.
- Transmission Line Condition Assessments and Patrols Work Overview [ pdf 311.68 KB ]