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PIR wired with ten cores?

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  • 30-07-2018 11:32pm
    #1
    Effects
    Registered Users Posts: 9,760 ✭✭✭


    Just a quick question. I've three points for PIR sensors in the house. Each one has a six core and a four core running back to the panel. What's the reason for needing so many cores?


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    #2
    ddonn
    Registered Users Posts: 15 ✭ddonn


    Effects wrote: »
    Just a quick question. I've three points for PIR sensors in the house. Each one has a six core and a four core running back to the panel. What's the reason for needing so many cores?

    Non point ID PIR sensors need 6 cores; 2 for 12v, 2 for tamper circuit & 2 for alarm circuit. My guess would be the 4 core is used to return tamper and alarm circuit back to panel to loop with other points.


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    #3
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    6 cores would be the max. Most installers would use 4 cores with duel eol resistors.
    Probably an electrician just making sure.


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    #4
    knipex
    Registered Users Posts: 2,018 ✭✭✭knipex


    As most electricians would say when it comes to cores..

    Better be looking at them than for them..


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    #5
    Effects
    Registered Users Posts: 9,760 ✭✭✭Effects


    Thanks for the replies. I had planned to use one of the four cores for an internal sounder in the hall position alongside a PIR.
    It is better to be looking at cables but I ended up having to cut out all the cables at the windows as they plasterers pulled them out of position!
    Ended up getting wireless for those, at a higher price!


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