RCDs

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  • Ric
    Automated Home Jr Member
    • Apr 2004
    • 25

    #16
    Re: RCDs

    I've certainly started somewhat of a debate here!

    I'm still having difficulty finding 1A MCBs though. The samllest MCB I seem to be able to find is 3A and the smallest RCD is 16A. The name of a good supplier would be helpful.
    Ric Charlton

    always trying but not always successful

    Comment

    • Darbyweb
      Automated Home Jr Member
      • Mar 2004
      • 25

      #17
      Re: RCDs

      Ric

      Any Newey & Eyre or Edmundsons wholesaler branch will be able to obtain the MCB as the part number and manufacturer i listed.

      Its not a debate - its facts


      Dean.
      ----------------
      CIS Integrator
      www.rolec.net
      ----------------

      Comment

      • Ric
        Automated Home Jr Member
        • Apr 2004
        • 25

        #18
        Re: RCDs

        OK - I've found somewhere to buy the MCBs relatively cheaply.

        1A MCBs for less than £3 + VAT
        8A MCBs for less than £7 + VAT

        Check out www.thefusecompany.co.uk.
        Ric Charlton

        always trying but not always successful

        Comment

        • Darbyweb
          Automated Home Jr Member
          • Mar 2004
          • 25

          #19
          Re: RCDs

          Ric

          You dont need an 8amp MCB - 10amp is correct rating and will be available off the shelf for a lot less.

          Also refering to your earlier post you dont need/want an RCD protecting the lighting circuits.

          £3 + VAT doesnt sound too bad.




          Dean.
          ----------------
          CIS Integrator
          www.rolec.net
          ----------------

          Comment

          • Ric
            Automated Home Jr Member
            • Apr 2004
            • 25

            #20
            Re: RCDs

            Originally posted by Darbyweb
            You dont need an 8amp MCB - 10amp is correct rating and will be available off the shelf for a lot less.
            According to the Clipsal documentation you should provide 8A of protection. The 8A MCBs are more expensive but I'd rather use the recommended spec at a slightly higher cost than run the chance of damaging a £450 dimmer unit which would not be under warranty because it had been incorrectly installed.
            Ric Charlton

            always trying but not always successful

            Comment

            • znelbok
              Automated Home Lurker
              • Aug 2004
              • 2

              #21
              Re: RCDs

              you are all forgetting your MCB curves A 1A breaker will let through up to 12.5A (dependig on type of course)

              A HRC would offer better protection

              Mick

              Comment

              • Barney
                Automated Home Jr Member
                • Jun 2004
                • 13

                #22
                Re: RCDs

                Hi, Sorry to join this debate a little late!

                I think I'm possibly one of the longest standing users of a fully installed C-bus system (Some 2 years.) on the ukha group.
                At the time of my install c-bus was pretty new and I think its fair to say there were a few unaswered questions.
                The technical manager of the time a guy called Niall was NOT recomending the install of MCB's on the outgoing channel and as a result I have NO outgoing protection. Indeed the install documentation of the time makes no reference to protection on the outward side.
                My proffesional electrician also did not recomend there use.
                In two years I've had no problems! (Oh boy why do I feel I'm going to regret saying this!).

                Now I'm wondering if I should retro-fit a load of 1am MCB's to my install, which could leave me some interesting space issues in my consumer units!


                Ho hum!

                Rob

                P.S. Anyone reading this who is undecided about installing c-bus. Do it! It is fantastic and 100% reliable!

                Comment

                • Otto-Mate
                  Founder
                  • Jan 2004
                  • 882

                  #23
                  Re: RCDs

                  Barney - any pics of your install you can share with us?

                  Thanks

                  M.
                  Editor AutomatedHome.co.uk


                  www.facebook.com/AutomatedHomeUK
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                  Comment

                  • Darbyweb
                    Automated Home Jr Member
                    • Mar 2004
                    • 25

                    #24
                    Re: RCDs

                    Originally posted by Barney
                    The technical manager of the time a guy called Niall was NOT recomending the install of MCB's on the outgoing channel and as a result I have NO outgoing protection. Indeed the install documentation of the time makes no reference to protection on the outward side.
                    My proffesional electrician also did not recomend there use.
                    In two years I've had no problems! (Oh boy why do I feel I'm going to regret saying this!).
                    Interesting - Niall was most definately telling people to install outgoing protection 18months ago !!



                    Dean.
                    ----------------
                    CIS Integrator
                    www.rolec.net
                    ----------------

                    Comment

                    • Ross
                      Automated Home Jr Member
                      • Apr 2004
                      • 34

                      #25
                      Re: RCDs

                      Originally posted by Darbyweb
                      Also refering to your earlier post you dont need/want an RCD protecting the lighting circuits.
                      Dean.
                      Dean,
                      In Australia the manditory installation of RCD's on lighting and power circuits is an SAA rule applied to all new installations in domestic dwellings and other various applications.
                      My experience is that the inclusion of an RCD on the line side of any lighting circuit saves alot of toasting downstream of various components.
                      One could almost see them as manditory as their benfiets far outway their cost. I would therefore disagree with your comment as above. They not only save lives, but hardware as well.
                      Cheers
                      Austalian Integrators Forum
                      http://www.integrate-oz.net/forum/index.php
                      http://www.cbussales.com/index.php

                      Comment

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