09-12-2008, 03:22 AM
The 2008 National Electrical Code requires ac powered, interconnected smoke alarms with battery back-up. Purely battery powered alarms are not allowed in new construction. Additional placement requirements exist, your electrician can outline them. but for all intents and purposes, it's one per bedroom and one in the hallway between bedrooms.
dick wilson
yup you are right Dick good eye! ... the sensors I used are UL approved heat rise detectors much more stable than photocell or radioactive ionization smoke detectors in high humidity installations btw they are approved for residential and commercial use.
The whole alarm system is UL approved and replaces all the home depot junk installed per code that lasted about three months before the humidity failed the ionization chambers. Just what we need more radioactive waste for the landfill ..
regards Bullwinkle
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Edited by - DickWilson on 09/11/2008 14:26:42
dick wilson
yup you are right Dick good eye! ... the sensors I used are UL approved heat rise detectors much more stable than photocell or radioactive ionization smoke detectors in high humidity installations btw they are approved for residential and commercial use.
The whole alarm system is UL approved and replaces all the home depot junk installed per code that lasted about three months before the humidity failed the ionization chambers. Just what we need more radioactive waste for the landfill ..
regards Bullwinkle
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Edited by - DickWilson on 09/11/2008 14:26:42