This part of BS 7273 gives recommendations for the design, installation and commissioning of electrical equipment for the actuation of gaseous total flooding fire extinguishing systems. It covers the interface between fire detection and fire alarm systems (see BS 5839‑1) and gaseous total flooding fire extinguishing systems (see BS 5306 and BS ISO 14520) and is also applicable to fire protection systems for electronic equipment installations (see BS 6266).