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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
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  • 0

    OMS:


     


    Apostolos Kasinalis:

    Because the cable is chased within 50mm of the surface of the wall, so according to BS7671 I need an RCD.

     



    So you said - however is the installation a domestic premises or can you reasonably expect it to be under control of a skilled or instructed person 


    Can you also reasonably expect the metal foil of the FP 200 lay up to act as an effective CPC


    Regards


    OMS
     


     



    OMS, where is the allowance made for commercial premises to have the mechanical protection of cables buried less than 50mm within walls omitted if under the control of a skilled or instructed person?

    There is no issue with adding RCD protection to the circuit so why would it be omitted? Granted the function test of the RCD trip might cause some consternation but I'd be surprised if the panel couldn't allow for this and/or it be rolled into one of the weekly manual call point tests to avoid too much disruption.


    Pete
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  • 0

    OMS:


     


    Apostolos Kasinalis:

    Because the cable is chased within 50mm of the surface of the wall, so according to BS7671 I need an RCD.

     



    So you said - however is the installation a domestic premises or can you reasonably expect it to be under control of a skilled or instructed person 


    Can you also reasonably expect the metal foil of the FP 200 lay up to act as an effective CPC


    Regards


    OMS
     


     



    OMS, where is the allowance made for commercial premises to have the mechanical protection of cables buried less than 50mm within walls omitted if under the control of a skilled or instructed person?

    There is no issue with adding RCD protection to the circuit so why would it be omitted? Granted the function test of the RCD trip might cause some consternation but I'd be surprised if the panel couldn't allow for this and/or it be rolled into one of the weekly manual call point tests to avoid too much disruption.


    Pete
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