Valid COC?

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  • Sparks
    Gold Member

    • Dec 2009
    • 909

    #1

    Valid COC?

    How about some thoughts on this:
    *use link further down*
    I want to help a youngster but do not know who/where he can contact the correct person, he is in Alberton.
    All comments will be appreciated.
    Thanks
    Last edited by Dave A; 28-Jun-11, 03:53 PM.
  • murdock
    Suspended

    • Oct 2007
    • 2346

    #2
    i cannot load the link...it gives a picture error message.

    Comment

    • Sparks
      Gold Member

      • Dec 2009
      • 909

      #3
      Sorry about that, it is a Large PDF, I will change the format.

      Comment

      • Sparks
        Gold Member

        • Dec 2009
        • 909

        #4
        A sample of what the COC was issued for:

        Click image for larger version

Name:	ex-plug-point.jpg
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ID:	261261

        That is cabtire feeding other socket outlets.
        Last edited by Dave A; 28-Jun-11, 05:58 PM.

        Comment

        • Sparks
          Gold Member

          • Dec 2009
          • 909

          #5
          The outbuildings which have been excluded insidently do have power.

          Comment

          • Dave A
            Site Caretaker

            • May 2006
            • 22810

            #6
            I don't know how anyone else is going, but I got gateway timeouts trying to download from those links.

            Sparks sent me the pdf - I've got it down to 300dpi and it's now 993KB available at https://www.theforumsa.co.za/documen...-scan-tfsa.pdf

            Hope that helps.

            I'll pass it by my wireman for some feedback too, but I did notice a few things that surprised me:

            Why would you use a calculated PSC on a single phase supply? Use a PSC tester for crying out loud.
            How can you issue a COC on an installation where your PSC is higher than your short-circuit/withstand rating?
            Section 3 - description of installation... Ja, about that one
            Last edited by Dave A; 30-Oct-17, 03:24 PM. Reason: fixed URL
            Participation is voluntary.

            Alcocks Electrical Services | Alcocks Pest Control & Entomological Services | Alcocks Hygiene Services

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            • AndyD
              Diamond Member

              • Jan 2010
              • 4946

              #7
              Single phase with clockwise rotation is already setting off alarm bells. Also no geyser......?
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              Comment

              • Dave A
                Site Caretaker

                • May 2006
                • 22810

                #8
                Originally posted by AndyD
                Single phase with clockwise rotation is already setting off alarm bells.
                I had the same thought and checked what we're doing on our COC's - and we're doing the same thing. Apparently it comes from a "how to complete the electrical COC form" session done by the ECA I sent my top staff to a couple of years back.
                Participation is voluntary.

                Alcocks Electrical Services | Alcocks Pest Control & Entomological Services | Alcocks Hygiene Services

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                • Sparks
                  Gold Member

                  • Dec 2009
                  • 909

                  #9
                  Thanks Dave, I usually download not upload so I am green on that. Will educate myself for next time though.
                  All valid coments so far. As per "notes" althought the fixed appliance circuits are indicated on the COC, the actual appliance is not covered. The circuits still have to be indicated and must comply.
                  I am hoping someone can give me details of where to report this turd.
                  I am not even sure where exactly the house is, looks like the guy who signed off is not either.

                  Comment

                  • Sparks
                    Gold Member

                    • Dec 2009
                    • 909

                    #10
                    Originally posted by AndyD
                    Single phase with clockwise rotation is already setting off alarm bells. Also no geyser......?
                    Maybe they can prove it to us?

                    Comment

                    • Dave A
                      Site Caretaker

                      • May 2006
                      • 22810

                      #11
                      I think I'm going to bomb those links to those monster files and save everyone some serious bandwidth, Sparks.

                      Originally posted by Sparks
                      That is cabtire feeding other socket outlets.
                      Here's that picture

                      Click image for larger version

Name:	ex-plug-point.jpg
Views:	1
Size:	78.7 KB
ID:	261261

                      And yes, now I understand why Sparks is getting hot under the collar on this one.
                      Participation is voluntary.

                      Alcocks Electrical Services | Alcocks Pest Control & Entomological Services | Alcocks Hygiene Services

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                      • Sparks
                        Gold Member

                        • Dec 2009
                        • 909

                        #12
                        Thanks Dave, you certainly are on the ball. Much appreciated.

                        Comment

                        • AndyD
                          Diamond Member

                          • Jan 2010
                          • 4946

                          #13
                          Originally posted by Sparks
                          Originally posted by AndyD
                          Single phase with clockwise rotation is already setting off alarm bells. Also no geyser......?
                          Maybe they can prove it to us?
                          Prove which bit, the single phase rotation or the no geyser?

                          We always mark the rotation as not applicable if it's a single phase supply. I've never had any guidance to say we should do otherwise but not working in the domestic field we only issue maybe one COC a month so maybe it's slipped through the net. I would carry on doing this unless someone can show me firstly how to determine the rotation of a single phase supply and secondly a good reason to worry about it.

                          I've never seen a domestic property that doesn't have a geyser. Also if there's a gas water heater there's more regs such as the cage for the bottle requires earth bonding and lightning protection plus they still need the earth service bond to the water pipework.
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                          Comment

                          • Sparks
                            Gold Member

                            • Dec 2009
                            • 909

                            #14
                            The rotation of 1 phase around itself
                            The geyser is still there
                            I have just heard that there are another two powered-up DBs'

                            Comment

                            • Sparks
                              Gold Member

                              • Dec 2009
                              • 909

                              #15
                              I was hoping there is an ECA member in the Gauteng area with a contact number for someone there. Here is another sample:

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