Standards Australia recently published AS/NZS 5033:2021 - Installation and safety requirements for photovoltaic (PV) arrays.
Here is an article from Building and Energy summarising the main changes and the transition dates.
On 19 November 2021, Standards Australia published AS/NZS 5033:2021 - Installation and safety requirements for photovoltaic (PV) arrays.
This revised version aims to provide clear and relevant guidance to support safe systems and safe practices for industry professionals and consumers.
Some of the changes include:
• Rooftop isolator requirements
• DC cable routing and installation requirements
• Earthing requirements
• Increase in maximum PV array voltage for residential systems
• Changes to d.c. optimiser and micro inverter requirements
• Updated testing and verification requirements
There will be a 6 month transition period before AS/NZS 5033:2021 becomes mandatory on 19 May 2022.
If you choose to adopt the new standard during the transition period, the entire version must be followed. You cannot use some requirements from the 2014 version and some from the 2021.
Please nominate on the Notice of Completion which version of AS/NZS 5033 you have complied with.
Please also remember who may install solar PV and battery storage systems in Western Australia (Electricity Focus February 2021). All work associated with these installations in Western Australia is classified as electrical work and must be performed by electricians with a Western Australian Electrician Licence employed by an Electrical Contractor holding a WA licence.
Electrical contractors may use a competent person (unlicensed) to assist in the installation of the structural PV rails and provide general assistance. However, all wiring, fixing in place of PV panels, earth bonding, associated accessories (DC Isolator), inverters and batteries must be installed by licensed WA electricians.
Electrical contractors must submit a Notice of Completion to the relevant network operator or Building and Energy for all such work.