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Fire alarm panel supply

Apostolos
Good morning.

I have a question that may sound silly so excuse my ignorance in advance

I have a Fire Alarm Panel

This is going to be fed through FP200.

However the installation of the FP200 would need an RCD because it is chased within a stud wall less than 50mm from the surface.

Can I omit the RCD on the grounds that it is a critical system for the safety of people?

Is there anything like that in BS7671?

It seems really counter intuitive to use an RCD on a Fire Alarm Panel...

Thanks
Parents
  • 0
    wiring to sensors, call points and sounders will be ELV, so can route anywhere.

    Only the mains wiring needs consideration, and that is very similar to the rules for a lightswitch.


    Namely that

    If the route  is not concealed, RCD protection is not needed for any cable.

    If the cable has a built in earthed screen or armour and the cable is of a type listed for that purpose, RCD protection is not required.

    If the cable is protected by an earthed enclosure, conduit / trunking etc , RCD protection is not required.


    Or it must be in rhe 'safe zones' and have RCD protection.


    the former exception for wiring

    ‘under the supervision of a skilled or instructed person’  went in one of the amendments to the 17th, in 2015 -ish

Reply
  • 0
    wiring to sensors, call points and sounders will be ELV, so can route anywhere.

    Only the mains wiring needs consideration, and that is very similar to the rules for a lightswitch.


    Namely that

    If the route  is not concealed, RCD protection is not needed for any cable.

    If the cable has a built in earthed screen or armour and the cable is of a type listed for that purpose, RCD protection is not required.

    If the cable is protected by an earthed enclosure, conduit / trunking etc , RCD protection is not required.


    Or it must be in rhe 'safe zones' and have RCD protection.


    the former exception for wiring

    ‘under the supervision of a skilled or instructed person’  went in one of the amendments to the 17th, in 2015 -ish

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