I remember doing fire alarms in 2/3 story communal areas with detectors & call point wired in T&E and the bell circuits in FP.years ago, T/E was allowed for dire alarm detectors as long as they were EOL monitored. that.s 25 years ago though. all now in FP or MICC,some specs even call for the super FP , called enhanced or summat. thank the devil i use wireless detectors.
That book is £300.
I will keep my question open.
Nice of you to read my other replies properly.If £300 is beyond you to buy the Standard for Fire Alarms then either you need to up your rate or stop doing fire alarms.