Publications and resources
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Managing Electrical Hazards
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- 28 September 2021
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Info Sheet Civil EHMP.pdf [ pdf 384.4 KB ]
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Grid Outputs Report 2020
Each year, Transpower publishes a Grid Outputs Report which provides our customers and stakeholders with a summary of the performance of our regulated transmission business over the past...
- 10 May 2021
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Grid Outputs Report 2020 [ pdf 1.27 MB ]
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Best practice forest management – trees and transmission lines
A best practice guide on the management of trees around transmission lines.
- 19 January 2021
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Best practice forest management.pdf [ pdf 590.72 KB ]
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Public Helicopter Use around Transmission Lines
Flying near power lines is dangerous as the conductors (wires) can be difficult to see.
- 14 December 2020
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Helicopter user near transmission lines [ pdf 513.59 KB ]
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Earth Potential Rise (EPR) Mitigation Information Sheet
In the rare event of a lightning strike or fault on the transmission line, towers or poles may transfer high voltage and dangerous currents into the ground for a very short instant. This is...
- 05 May 2020
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Earth Potential Rise Info Sheet.pdf [ pdf 1.46 MB ]
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Grid Outputs Report 2019
Each year, Transpower publishes a Grid Outputs Report which provides our customers and stakeholders with a summary of the performance of our regulated transmission business over the past...
- 30 January 2020
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Grid Outputs Report 2019.pdf [ pdf 1.12 MB ]
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Transmission Planning Report 2019
Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...
- 22 January 2020
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Transmission Planning Report 2019.pdf [ pdf 6.89 MB ]
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Asset Management Plan 2018
A supporting document to our 2018 Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.
- 30 October 2018
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Asset Management Plan 2018.pdf [ pdf 19.79 MB ]
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Grid Outputs Report 2018
This report builds on the 2017 Services Report, describing the grid output measures for our regulated transmission business for the third regulatory control period (RCP3) of...
- 30 September 2018
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Grid Outputs Report 2018.pdf [ pdf 3.38 MB ]
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Transpower's Keys to Life
Tranpower's "Keys to Life" are our key safety expectations for Transpower staff and contractors. They are critical to individual safe work practices.
- 26 July 2018
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Transpower's Keys to Life [ pdf 1.13 MB ]