DB wiring and CoC

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  • AlexK
    New Member
    • Feb 2018
    • 3

    #1

    DB wiring and CoC

    Greetings,

    I have an old (well, 21/22 year old) townhouse with three-phase electricity supply from the City of Joburg. All the wires in the DB board are solid copper conductors. For some reason, however, when the house was built in 1996 ,the builders/electricians only used red PVC insulated wires.... No other colours! My electrician tells me that he cannot issue a CoC due to the color-coding issue and what the "electrical code" says (he does say that the wiring itself is properly done).

    Are there any contrary views? Do I have to shell out a few thousand precious Rands for the re-wiring of the DB?
  • GCE
    Platinum Member

    • Jun 2017
    • 1473

    #2
    Hi

    reading between the lines and would not want to say anything until I saw a picture of the DB wiring .
    Could you possibly post a photo of the DB internal wiring

    Comment

    • Hotspot
      Full Member
      • Jun 2016
      • 28

      #3
      Good day,
      I copied this out of SANS 10142-1 2017
      6.3.3.2 The means of identification for an a.c. circuit may be by colours or
      by numbers, as follows:
      a) where colours are used
      1) a neutral conductor shall be identified by black only,
      2) an earth continuity conductor shall be identified by the bi-colour
      green/yellow only, or by being bare. Green/yellow insulated
      conductors shall NOT be used as live conductors under any
      circumstances,
      3) a phase conductor shall be identified by a colour other than
      green/yellow, green or black, and
      NOTE Welding cable manufactured to SANS 1576 should not be used in
      circuits above 100 V.
      4) the colours may be applied at the ends of the conductor (of a
      multicore cable) by means of durable colour marking (e.g. insulating
      sleeves or by electrical insulating tape wound more than once around
      the conductor), and
      b) where numbers are used, "0" shall indicate the neutral conductor.
      NOTE Where the purpose or the function of a conductor is apparent, marking is
      not required.

      From what is printed in the standard, it does not state that each phase conductor should be a different colour.
      I could be wrong.

      Comment

      • AndyD
        Diamond Member

        • Jan 2010
        • 4946

        #4
        Ask the electrician for the regulation he's enforcing. Even if there is a reg, rewiring certainly isn't necessary. The phase colour can be indicated by a band of tape or heat shrink sleeve or even coloured cable straps at the point where the wire terminates.
        _______________________________________________

        _______________________________________________

        Comment

        • AlexK
          New Member
          • Feb 2018
          • 3

          #5
          BD Board pics

          Originally posted by GCE
          Hi

          reading between the lines and would not want to say anything until I saw a picture of the DB wiring .
          Could you possibly post a photo of the DB internal wiring
          Pics attached.
          Attached Files

          Comment

          • GCE
            Platinum Member

            • Jun 2017
            • 1473

            #6
            Hi

            Dont see the need for a rewire
            The regulation posted above by Hotspot should sort out any argument - All the live wires are red which is not an issue .

            Without going into details there are a couple of things to be sorted out on the DB , but complete rewire of the installation is a no.

            Comment

            • AlexK
              New Member
              • Feb 2018
              • 3

              #7
              Thanks all... Much appreciated.

              Comment

              • ians
                Diamond Member

                • Apr 2010
                • 3943

                #8
                Looks better than a lot of DB installation i get to see on a daily basis.

                I think you need to get a second opinion.
                Comments are based on opinion...not always facts....that's why people use an alias.

                Comment

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