disturbed earth bonding

Dear Engineers

Apologies for lowering the standard of discussion here with my first and probably only question. I had some work done to my mains stopvalve recently. In the cause of this the plumber needed to remove and then reinstate the green and yellow cable. I now noticed that it is not very tightly fastened into the clamp - see photo, and easily wobbles. Also the warning label has disappeared.

My question is: It looks easy to fix and to get a new label. Happy to have a go myself. But is there more to it? Does it need testing, perhaps? In other words: is this for householder or for electrician to remedy.

Many thanks in advance if you can help.

Anna

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  • There is a bit of a knack to pulling the tape tight before doing up the locking screw, but at most allow 2 goes.

    +1 to that. Those clamps aren't great when re-used - the securing band is indented by the locking screw, so it's very difficult to get them just a little bit tighter once they've been fully tightened in the wrong position (or around a fractionally larger pipe). A fresh clamp make life so much easier - and at about £3.50 for a pack of 5 from your local DIY shed (e.g. https://www.wickes.co.uk/Wickes-Dry-Condition-Earth-Clamps---Pack-of-5/p/220461) you can have a spare one or two to practice on (and you get the labels too!).  Likewise I'd chop off the distorted ends of the G/Y cable and re-bare a clean straight section to work with (twist the strands together then bend into a U shape to go around the terminal screw).

       - Andy.

  • Andy thank you. Practicing is a good idea. then I get a better idea if I can do it for real.

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