Fire/Smoke Alarm on same circuit as House Alarm

[ahll]

The smoke Alrams have been put on a single circuit in the house as expected. Procteced by a B6 MCB on none RCD side of the CU.

Does anyone kinow if there is any problem running the house alram off that circuit as well ?

 

[wingcoax]

Better running smoke alarms from a lighting circuit so then you have a visual alert if the supply fails.Run alarm from the old smoke supply.

 

[ColJack]

smoke alarms draw next to nothing until they go off, and then probably not all that much to run a piezo sounder..

as said, it's normal to have the smokes on a lighting circuit, but nothing says you can't have them on a dedicated.. just that there is no clear indication if the breaker has gone ( unless the alarm buzzes or pips or whatever to tell you the mains has failed.. )

you could fit a neon somewhere you see regularly as indication..?

depending on the load of your house alarm, the I see no reason not to run it from the smoke circuit.. ( may be beneficial as the house alarm will probably have some indication of mains failure. )