Smoke/heat alarms, linked or not

[Toneyz]

Tbh, I would always look to interlink, even if building control didn't require it. Just think it makes for a more robust system.

Just to add they need to be all interlinked as if one went off in another part of the building you would need to know there was a fire to get out before it reaches another part of the building.

 

[haptism]

On your layout what is south of the new kitchen do you have to go through the kitchen to get to the front door? if so it is the escape route that's why they would ask for a alarm. I once had to go to a two-story extension for my old employment and as they only had battery smokes and interlinked smoke detectors had to be fitted.

Yep South of the kitchen is the hall that leads to front door. I recommended the kitchen has a heat fitted, its if it needs to be interlinked with the smoke in the extension thats what im on about.

 

[haptism]

Just to add they need to be all interlinked as if one went off in another part of the building you would need to know there was a fire to get out before it reaches another part of the building.

But if the heat went off in the kitchen, or the smoke in the extension it would (or vice versa) it would be difficult not to hear as one would be less than 10meters from the other.

 

[polo1]

I would say it definitely needs a smoke detector there as there would be no vision panel from the wc to see a fire occurring and heat detectors are essentially decoration.

True, heats are a compromise. If we only had smoke detectors in residential premises, (even more) people would disconnect them due to nuisance alarms from the kitchen sensor; so better a heat than smoke or nowt!
Op, just interlink it and be done ;>}

 

[Toneyz]

If one goes off they all go off that's the idea.They need to be all the same make and design range.

 

[westward10]

The problem I see here is the wc, had that not been there the extension would not require asd as there is clear unobstructed vision to the kitchen. What has essentially been created here is a circulation space through the extension for the route from the wc and hence it needs to be linked.

 

[haptism]

The problem I see here is the wc, had that not been there the extension would not require asd as there is clear unobstructed vision to the kitchen. What has essentially been created here is a circulation space through the extension for the route from the wc and hence it needs to be linked.

Well thats just total overkill imo, the same could be said about a broom cupboard. If someones sitting on the throne and theres a fire in the kitchen, they would hear the kitchen alarm going off, theres no doors and its about 15 paces from A to B

 

[westward10]

Bottom line under Approved Doc B, heat detection in the kitchen needs linking to the smoke detection.

 

[haptism]

If one goes off they all go off that's the idea.They need to be all the same make and design range.

Would radio linked suffice

 

[Toneyz]

But a smouldering fire starting would not be picked up be a heat detector.

 

[Toneyz]

Would radio linked suffice

Yes but materials would be more expensive but less in labour.

 

[westward10]

Well thats just total overkill imo, the same could be said about a broom cupboard. If someones sitting on the throne and theres a fire in the kitchen, they would hear the kitchen alarm going off, theres no doors and its about 15 paces from A to B

The problem with ahd is that it is not an effective means of protection for an escape route, often by the time one is activated the fire is probably getting out of control. I assume the hall has asd.

 

[haptism]

Bottom line under Approved Doc B, heat detection in the kitchen needs linking to the smoke detection.

Thanks Westward, thats some extrapolation of building control I was unsure about till now, !

 

[westward10]

Thanks Westward, thats some extrapolation of building control I was unsure about till now, !

See 1.13 of said document which I think you have done where circulation space is referred to and although strictly speaking this does refer to hallways and landings the wc has allowed the extension to become so and hence linking is required. I am somewhat surprised the wc location was approved without a door in the new extension to lead to a place of safety.

 

[haptism]

The problem with ahd is that it is not an effective means of protection for an escape route, often by the time one is activated the fire is probably getting out of control. I assume the hall has asd.

What is asd ? The hall has no alarms. When I wired the the extension I fitted the mains smoke and issued the EIC and notified it. At that time the kitchen was a non starter until further notice, so in that respect ive done nothing wrong.

Then I wired the kitchen, issued Eic, but customer says to wait for lights and heat alarm, so i notify it anyway. Thats wrong to notify it then in this instance.