A: A smoke alarm is required between living areas and all bedrooms. If this can be achieved with one alarm, then only one alarm is required.
A: Yes but only where the wiring cannot be concealed or there is no mains power to the dwelling. It must also have approval from the local government.
A: They have to be interconnected in dwellings or extensions to dwellings built after 31 April 2015.
A: In most cases no. The smoke alarm must be directly connected to consumer mains power.
A: Both ionisation and photo electric types are acceptable providing they comply with the relevant edition of AS 3786 which is currently AS 3786.2014.
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