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Power over coaxial

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  • 12-10-2021 2:11pm
    #1
    LimerickGray
    Registered Users Posts: 235 ✭✭


    Is it possible to use coax to wire a domestic light switch.

    I have a light in the attic that I want to be able to control from the landing. There is already 2 coax cables in a coax box on the landing and I am thinking I could use those as the live and switched live for the light switch. switch



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    #2
    CreadanLady
    Registered Users Posts: 805 ✭✭✭CreadanLady


    No. You can't do 220V power over co-ax. it would be insane to try it.

    It would work alright, but it would be deadly dangerous. Years in the future someone might see a seeminly harmless co-ax cable, cut it, and die.

    The MFV Creadan Lady is a mussel dredger from Dunmore East.



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    #3
    LimerickGray
    Registered Users Posts: 235 ✭✭LimerickGray


    https://www.boards.ie/discussion/comment/118009520#Comment_118009520

    Ouch. That would hurt. I’ll try to use the coax to pull in two core instead. Thanks



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    #4
    CreadanLady
    Registered Users Posts: 805 ✭✭✭CreadanLady


    No it wouldn't hurt a bit. You'd be stone dead. Instantly.

    If you need to ask the question of whether you should run 220V through co-ax then, in my opinion anyway, you shouldn't be doing anything with electrics. Get an electrician is my advice.

    The MFV Creadan Lady is a mussel dredger from Dunmore East.



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    #5
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    https://www.boards.ie/discussion/2058212789/power-over-coaxial

    Jeez... If that your level don't do any electrical work or wiring. Get a professional. Also no 2 core for electrical.

    It's scary what people will try. 😰😰



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    #6
    Slightly Kwackers
    Registered Users Posts: 730 ✭✭✭Slightly Kwackers


    https://www.boards.ie/discussion/2058212789/power-over-coaxial

    Perfectly possible.

    Use a 24V masthead amp PSU to drive a n/o relay in a JB in the loft. Use the contacts to switch the existing lighting circuit. Don't forget to take a permanent ground to the low Voltage supply though.

    A bit long winded, but there are very good practical reasons why coax is rarely used to control or power anything other than RF equipment.


    SK



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    #7
    LimerickGray
    Registered Users Posts: 235 ✭✭LimerickGray


    https://www.boards.ie/discussion/comment/118112503#Comment_118112503

    SCOLDED - I stand corrected........a simple NO was more than enough. It was actually really easy. to drop new 3 core cable into the partition



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