Hi All,
A bit of advice is required if possible. My friend has a fairly new home in which there are 2 mains powered smoke detectors. They have recently built an extension to the side and a sun room at the rear. The drawing shows 2 additional smoke detectors to be installed, one in the sun room, and one in the hallway of the new extension leading to the new rear door.
The smoke detectors have not been installed as per the drawings, so they have asked my advice on how to do this but i am not 100% on the latest regs for private dwellings, (i install fire & security systems) i believe they need a category D system which means mains powered smoke detectors, however as they already have 2 detectors hardwired, can they get away with installing 2 battery powered smoke detector which are interlinked wirelessly so if one detector triggers the other also alarms as i read that these types of detectors can substitute hard wired category D detectors.
Any help would be greatly received.
A bit of advice is required if possible. My friend has a fairly new home in which there are 2 mains powered smoke detectors. They have recently built an extension to the side and a sun room at the rear. The drawing shows 2 additional smoke detectors to be installed, one in the sun room, and one in the hallway of the new extension leading to the new rear door.
The smoke detectors have not been installed as per the drawings, so they have asked my advice on how to do this but i am not 100% on the latest regs for private dwellings, (i install fire & security systems) i believe they need a category D system which means mains powered smoke detectors, however as they already have 2 detectors hardwired, can they get away with installing 2 battery powered smoke detector which are interlinked wirelessly so if one detector triggers the other also alarms as i read that these types of detectors can substitute hard wired category D detectors.
Any help would be greatly received.