Fire design recommendations

9.2 Fire alarm design recommendations
The following recommendations are applicable in the case of fire alarm systems intended to actuate other fire protection systems or safety facilities (e.g. by triggering an automatic fire suppression system, closing fire resisting doors, shutting down an air handling system or grounding lifts).
a) The system should comply with the recommendations of any applicable part of BS 7273 for fire suppression.
b) If no part of the fire suppression code BS 7273 is applicable, any special requirements for fire alarm system design should be identified in the purchase specification or design proposals.

c) If operation of the fire alarm system during routine testing would have an undesirable effect on other fire systems or equipment, means should be provided for disabling the automatic actuation of the system or equipment. The facility for disablement, and the indication of disablement, should comply with BS EN 54-2.

d) The other equipment or fire alarm system should not draw power from the fire alarm system in the non-fire state, other than for indicators and interface devices (e.g. relays). The power consumption of any such indicators and interface devices should be taken into account in the calculation of battery capacity