FIRE SAFETY > Fire Alarm Systems

Monitoring Fire Alarm System Components ???

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Messy:
I have come across a fire detection system where it appears that some of the significant components (a large bank of relays) are not monitored. So as far as I can understand, any of those relays can suffer a coil burn out or other major defect and no fault signal will be generated.

This doesn't seem right to me, but not being a fire alarm engineer or having more than a working knowledge of the headlines of BS 5839-1 - I am not sure if this is acceptable or not.

Does anyone know if components attached to CIE need to be monitored in a similar way as each device does (head or MCP)? It seems logical to me, but....?

Just to be clear, I am asking if this set up 'complies' with 5839 as if it doesn't, I will be able to exert more pressure to get it updated.

Thanks

Tom Sutton:
Is it not the bs en 54 series you need to check out, for instance BS EN 54-2:1997+A1:2006 Fire detection and fire alarm systems. Control and indicating equipment. BS 5839-1 about installation not construction?

AnthonyB:
What are the relays operating?

Messy:
My understanding is that the relays operate VAS circuits on different floors and escalate to create a phased evacuation strategy from a complex cause & effect matrix.

Other relays shut doors, ground lifts and isolate some ventilation etc

AnthonyB:
The signal from relays to the VADs would definitely need some form of fault monitoring under Section 12 of BS5839-1, the other relays would depend on the requirements of the relevant part of BS7273 (or so BS5839 says)

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