Passive fire security design parts are accustomed to resist, retard and isolate flames as well as the connected smoke and fumes: they do not in themselves extinguish flames hence They can be classed as 'passive defense'. Yes, through the use of a multiple loop FireCell panel it is achievable to https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/