Mains operated interconnected smoke alarm

[loz2754]

Wash ur mouth out, yuck.

The OP has stated that he intends to use trunking to supply power to the smoke alarms from either a light or a switch, regardless of whether they're interconnected wirelessly, they still need power.

 

[pirate]

TBF, they can all be battery and radio-linked, at least the Aico ones can. I generally used to install the hall smoke as a wired, from a light, with a 10 year battery, and the rest just 10 year battery, radio linked. No mains wired for me now...why bother?
Unless your local BC have other ideas...
Better to have something that works, IMHO.

 

[loz2754]

TBF, they can all be battery and radio-linked, at least the Aico ones can. I generally used to install the hall smoke as a wired, from a light, with a 10 year battery, and the rest just 10 year battery, radio linked. No mains wired for me now...why bother?
Unless your local BC have other ideas...
Better to have something that works, IMHO.

This would be a Grade F system according to BS5839:6. You're quite correct in saying that some local building control/councils will not accept anything other than Grade D (mains interlinked).

However it should be ok in the private rented sector, as the actual legislation from October 2015 doesn't require mains OR interlinking, just smoke alarms on each floor.

 

[brianmoooore]

However it should be ok in the private rented sector, as the actual legislation from October 2015 doesn't require mains OR interlinking, just smoke alarms on each floor.

Another "C2 or C3" future thread in the making?

 

[loz2754]

Another "C2 or C3" future thread in the making?

Smoke alarms are not covered by an EICR, other than the mains feed.

 

[brianmoooore]

Not yet.

 

[loz2754]

Not yet.

I give your comment a C3. ?

 

[pirate]

To clarify, I was commenting from a Scottish perspective.

 

[loz2754]

To clarify, I was commenting from a Scottish perspective.

Ah. Different set of riddles rules.

 

[Neptune]

Thanks for all the responses. I really appreciate it.
My Local Authority has expressly stated that I need mains powered and cable interconnected smoke alarms. they do not approve the wireless system.

Once, I have confirmed the presence of permanent live in the ceiling rose I will use the trunking and clips mentioned to complete this task.

I also thought there was a "heat resistant" type 3 core and earth cable. Perhaps I should use that for the interconnect?

Thanks again