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Does BS 5839-6 or is there a product standard for UK smoke/heat/multi sensor alarm that covers the following?

Sergio Fernandez

Does BS 5839-6 or is there a product standard for UK smoke/heat/multi sensor alarm that covers the following?


Smoke or heat or multi sensor alarm that would be specification suitable of an average UK house for a not frequently visited loft? (An unoccupied loft space/uninhabited space)
I assume that a multi sensor alarm would be the recommended to the limit the amount of false alarms.



Main points to consider and that SHOULD be included in the product standard



- Interlinking


- Dusty environment possibly thus dust suppression would be a must


- An operating temperature range in excess of -15 to 55°C

 - Remote Hush/Test button or facility



It would need to cover the following variants
Mains power only
Mains powered with battery backup up sealed
Mains powered with battery backup up user replaceable battery

Battery powered sealed
Battery powered user replaceable battery




As always please be polite and respectful in this purely academic debate.

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  • Sergio Fernandez said:

    Smoke or heat or multi sensor alarm that would be specification suitable of an average UK house for a not frequently visited loft?

    Just also note that I see sensors placed above battery installations in loft, which, along with other measures, are claimed to "mitigate in lieu of PAS 63100".

    I'm not making any statement about the approach, but considering the detection. Detection of the smoke/vapour for early warning is required for lithium batteries ... the vapour can be heavier than air, so a smoke (or combined smoke and heat) above the battery might not detect ... some people are talking about detection above and below might be necessary.

  • in reply to gkenyon

    I agree with the science of a sensor in the loft space and the room below if an inverter or battery or Solar PV array On/In roof were present.  Potential consideration may also be needed for CO (carbon monoxide) alarm as well.  Lithium battery fires can give off carbon monoxide.

  • in reply to Sergio Fernandez
    Sergio Fernandez said:
    a sensor in the loft space and the room below

    In terms of "below", I think smoke/vapour above and below in the same room is the proposal?

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