AS 7662 25kV AC Rail Traction Systems. Part 1: General requirements

The closing date for comments – Friday 25 July 2025

The AS 7662 25kV AC Rail Traction Systems. Part 1: General requirements draft is now open for Public Consultation.

How this product helps the rail industry 

This new Standard will harmonise 25kV AC Standards for the rail industry, leading to improved safety, interoperability, and cost outcomes.

The use of 25 kV AC traction power systems in Australia is increasing, with recent installations in Sydney and Melbourne. These construction projects typically develop their project-specific standards, leading to a fragmented approach across different projects. This fragmentation and the absence of national standards for 25kV AC electrification can create risks and challenges for the operators of these networks.

About

The objective of this Standard is to provide the Australian rail industry with a set of recommended requirements for the traction power system and includes the interface requirements with other rail systems.

The standard addresses the requirements of the traction power system for the use of designers, contractors and Rail Infrastructure Managers.

The use of this standard will allow a uniform approach to be applied to the design, installation, testing and commissioning, operation and asset management of traction power supply systems.

How to contribute

AS 7662 25kV AC Rail Traction Systems. Part 1: General requirements will be available for public consultation for 60 days. All interested parties are encouraged to provide comments during this time.

It is available to download here.

To make comments on the draft, please use the commenting tools in Adobe Acrobat or Acrobat Reader to comment in-line with the text.

Please return your PDF with comments to cfitzhardinge@rissb.com.au by Friday 25 July 2025.

As the rail industry’s accredited Standards Development Organisation (SDO), RISSB continues to collaborate with government, rail operators and industry leaders to improve the efficiency and harmonisation of the Australia and New Zealand’s rail network, ensuring national interoperability, safety and sustainability into the future.