RCD protection for air conditioners in domestic and residential installations

Our Technical Team have received queries regarding how the changes to the provision of RCDs in domestic and residential installations apply to the installation of split system air conditioners. 

This has come about from the change to section (a – c) in the 2007 version which previously identified specific circuits that required RCD protection in residential electrical installations which essentially were socket outlets, lighting points and directly connected hand held electrical equipment.

The latest version of AS/NZS 3000 contains a new sub-clause which contains the words “Additional protection by RCDs with a maximum rated residual current of 30 mA shall be provided for all final sub circuits in domestic and residential electrical installations”. Click here to view in the TKB.

Members, and in particular those installing air conditioners in domestic and residential installations, must ensure that new equipment is now RCD protected which is generally provided through a combination RCBO device.