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Showing results for tags 'earth'.
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Hi all, I’ve almost finished practically rebuilding a house (kept just the original outside walls!), but I can’t seem to get a definitive answer on whether I need to bond to earth the copper mains incoming water supply when after the stop cock “everything” is plumbed in plastic. There’s a very interesting thread here and in the published document, but it assumes the incoming mains water is in plastic. No where can I find an answer for my scenario, which I’m very surprised some others haven’t got. If it wasn’t all the way over the other side of the house, I’d just put an earth cable in place just in case when it’s inspected they want one, but I can’t bring myself to waste £30 on a redundant bit of cable. Plus I want it all done perfect! My OCD can’t handle a cable being left there for no reason! My head BTW says it would be totally pointless to bond effectively just the stop cock to earth, but regs don’t always seem to make complete sense! cheers Jody -
Guys A bit of a post as a "heads up". I was fitting my replacement controllers today (both my Sunamps are being replaced, a story for another day) and nearly forgot to do something pretty fundamentally important. The reason for this post is that I could easily see a busy plumber/sparky/installer completing missing this. Let me explain firstly with some pictures. Here's the controller as supplied by Sunamp: For simplicity I've removed the lid and the earthing fly lead which is screwed to the back panel (you can see the screw just below the contactor bottom right). Then here's the wiring diagram which is on the back of the lid and also printed in the manual: So as per the title the thing we need to be focusing on is earthing. You will note that the diagram shows the earthing connection across the three live blocks and then back (assumably to the case?) BUT and it's a BIG but. Look again at the controller image the earth wiring is NOT there. Nowhere in the manual does it tell you that its your responsibility to make these connections for the earthing. As far as I can see if you were to fail to make these connections the Sunamp unit itself and the controller case would not be earthed.
