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When did we change from rubber to pvc insulation?

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  • 15-03-2011 1:26pm
    #1
    deandean
    Registered Users Posts: 2,234 ✭✭✭


    I am looking at a house at the moment and I am trying to put an approx age on the wiring.

    Anyone know when we changed from rubber insulated wires to pvc wiring? I guess about 1970?

    And when we changed from red/black pvc wiring to brown/blue?

    (and if you really know your stuff, when we changed from lead sheathed twin & earth! Never saw that stuff before).

    Thanks.


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    #2
    M cebee
    Closed Accounts Posts: 4,431 ✭✭✭M cebee


    dunno-the age won't matter anyhow

    rubber cabling is best re-wired


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    #3
    DublinDilbert
    Registered Users Posts: 5,379 ✭✭✭DublinDilbert


    deandean wrote: »
    I am looking at a house at the moment and I am trying to put an approx age on the wiring.

    Anyone know when we changed from rubber insulated wires to pvc wiring? I guess about 1970?

    And when we changed from red/black pvc wiring to brown/blue?

    (and if you really know your stuff, when we changed from lead sheathed twin & earth! Never saw that stuff before).

    Thanks.

    As the poster above said its kinda academic as it will need to be changed, but I would guess the rubber stuff would be pre 1960. As my own house was built in the 1960s and it had a type of PVC insulation, although it more closely resembled a type of Teflon ( I don't think it was Teflon).


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    #4
    deandean
    Registered Users Posts: 2,234 ✭✭✭deandean


    I am trying to put an approx date on when an extension was built.


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    #5
    Philistine
    Registered Users Posts: 159 ✭✭Philistine


    deandean wrote: »
    And when we changed from red/black pvc wiring to brown/blue?

    I started my apprenticeship in 1990 and we were told that the colours had "recently" changed from red/black to brown/blue, so I'm guessing very late 80's.


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    #6
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    Philistine wrote: »
    I started my apprenticeship in 1990 and we were told that the colours had "recently" changed from red/black to brown/blue, so I'm guessing very late 80's.

    Yea i think it changed during my one which started in 1987


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    #7
    deandean
    Registered Users Posts: 2,234 ✭✭✭deandean


    Yea I think the brown/blue colours came in about the time we started using MCBs instead of fuses - roughly mid 80's?


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    #8
    M cebee
    Closed Accounts Posts: 4,431 ✭✭✭M cebee


    i haven't a great memory:)

    - if i recall mcbs were standard well before brown/blue


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    #9
    Stoner
    Registered Users Posts: 10,952 ✭✭✭✭Stoner


    yes it was the late 1980s for the colour change, my place was 1967 and had PVC/PVC black/red so the extension is at least that old.


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    #10
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    1988-89 for the colour change i think, i was apprentice at the time and i think it happened then. The original pvc/pvc had a more plastic look to it, and the conductor had less strands in it, that was in use in the 60`s alright i think.


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