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AFDD in a hospice??

NE-ELEC-12

Hi All,

We are currently designing a a new build extension to a children’s / young adults hospice and hoping for some guidance.

the extension will consist of 3 new bedrooms, kitchen, corridors, community room and a garden.

Firstly, we are unsure if a hospice applies to any of the buildings outlined in 421.1.7 our understanding is that is does not. So we have referred to Section 710 and referred to 710.421.1.7 and using annex A710 we have determined  the bedrooms do not require AFDD's as they are group 1  and all other rooms would fall under group 0 and require a risk assessment.

Look forward to hearing your thoughts.

 

Parents
  • 0

    A learned member of this forum suggested that AFDDs were not required in Group 1 and 2 locations simply because some of the very specialized equipment used in such locations may cause the devices to nuisance trip, which could result in a critical situation.

    Someone would need to assess the risk in the group 0 location, if there is one identified, which, inter-alia, would consider the effect of loss of supply if the devices were employed.

    Only my opinion, but for what it is worth, I strongly believe that it was ill-conceived for 421.1.7 to mandate their use. The deployment of the devices are purported to reduce the risk of arcing and subsequent ignition but they also have shortcomings. That being the case, their use should have rested squarely in the bailiwick of the fire risk assessor/fire engineer in consultation with other relevant parties in the design team.

    I guess that can still be done and if it is considered that the devices are actually required by BS7671 but would be more trouble that their worth, the matter can be written up as a departure on the Electrical Installation Certificate.

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  • 0

    A learned member of this forum suggested that AFDDs were not required in Group 1 and 2 locations simply because some of the very specialized equipment used in such locations may cause the devices to nuisance trip, which could result in a critical situation.

    Someone would need to assess the risk in the group 0 location, if there is one identified, which, inter-alia, would consider the effect of loss of supply if the devices were employed.

    Only my opinion, but for what it is worth, I strongly believe that it was ill-conceived for 421.1.7 to mandate their use. The deployment of the devices are purported to reduce the risk of arcing and subsequent ignition but they also have shortcomings. That being the case, their use should have rested squarely in the bailiwick of the fire risk assessor/fire engineer in consultation with other relevant parties in the design team.

    I guess that can still be done and if it is considered that the devices are actually required by BS7671 but would be more trouble that their worth, the matter can be written up as a departure on the Electrical Installation Certificate.

Children
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