01 · Detail
Why the WA standard exists
Most fatal house fires in Australia are smouldering fires that start at night — a phone charger on bedding, a heater against a curtain, wiring in a wall cavity. Photoelectric alarms detect the visible smoke from these fires in minutes; ionisation alarms can take 20+ minutes longer. Interconnection means the alarm in the master bedroom sounds at the same time as the one in the laundry where the fire started.
Battery-only alarms fail when the battery dies (most people don't replace them on schedule). Hardwired alarms with 10-year lithium backup remove that failure mode entirely. The combined standard — hardwired, interconnected, photoelectric — is the difference between a near-miss and a coroner's report.


