Does the interconnect wire of the smoke alarm 755PSMA2 need to be double insulated?
The requirement is a minimum cable of 1.5mm², single core, double insulated cable for the interconnection wire for the smoke alarms. This is a manufacturers requirement because of the potential of the cable becoming live with 240V AC due to incorrect connections. If this is unbelievable, as an alternative we offer a wireless interconnect base. The part number for the base is 755RFB. This base is compatible with our smoke alarm 755PSMA2 and 755RLPSMA2. The range of this device is 100m free air or 30m indoors.