Website design By BotEap.comA home fire alarm system must be installed on a circuit separate and independent from any other service and have battery backup. Fire alarm heads for domestic premises typically come with a single internal 9V backup battery. The circuit has a low power supply demand and can be powered from a 5A MCB and should be wired between each header with 1.0mm or 1.5mm 3-core cable and ground for the link between the headers. heads. The maximum circuit length should not exceed 100m for 1.0mm cable and 99m for 1.5mm cable.

Website design By BotEap.comThe number of smoke alarm headers required is normally one on each floor of the home at the top of each stair landing and one in the ground floor hallway near the stairs. A heat alarm detector should be installed in the kitchen instead of a smoke detector to prevent nuisance activations. All mains powered home fire alarms have an extra terminal to link between each head so that if one head is activated all heads will sound.

Website design By BotEap.comFire protection of adequate duration must be provided to the fire alarm system to give sufficient warning in the event of a fire. Pyro (mineral insulated) cable should be used to wire the circuit, but standard PVC twin cable and ground flat cable can be used in domestic dwellings. More advanced fire systems with a control panel are typically installed in larger homes that require monitoring of more individual zones in the home.