Reminder - Type AC RCDs cannot be used for like-for-like replacements, or in any new installations

8 August 2023

We are aware of continued confusion in WA regarding the use of Type AC RCDs. This has come about because some states adopted the ERAC implementation model, which differs to the regulations that went live in WA on 30 April 2023.

As a reminder, Building and Energy and Western Power have implemented and are enforcing the requirements of clause of AS/NZS 3000:2018.

To be clear - Type AC RCDs do not have to be replaced in existing installations. However, Type AC RCDS cannot be used for like-for-like replacements, nor can they be used in any new installations. Only Type A RCDS can be used in these situations. 

Temporary power poles that are sent to site will also need to be upgraded with a Type A RCD unit as they are considered a new installation.

Previous articles regarding this change: