Recent content by Bailey326

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    Code for bonding?

    I have tested the extraneous part in the bathroom and it is well under 23k so definitely needs bonding. I'm thinking C3 as well as the 6mm connected from boiler pipework to bathroom water pipe has good continuity back to the 10mm at the MET.
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    Code for bonding?

    Gas bonded with 10mm at front of flat, boiler at back of flat where a 6mm has been linked from it to an extraneous cold water pipe in bathroom. No other extraneous water pipes in flat. All continuity good but using the gas pipe as a conductor to link to water pipe. C3 for 6mm C3 for non...
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    Ceramic fuse?

    Seen a few of these lately, are they old ceramic fuses inside? Any idea when they date back to and what the common fuse size is in them?
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    Grouping factors

    This is exactly what I was thinking/remember being taught. Yet some people I've spoken to in the past reckon they would put the ring on a 20amp breaker.
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    Grouping factors

    2 x 2.5mm twin and earth (ring circuit) in 25mm pvc conduit buried (plaster/concrete). Domestic. Who here would calculate grouping factor to further derate the cables?
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    Indoor neon sign

    indoor neon sign in a domestic property supplied by a transformer with plug. Input 230v Output 4000v 27ma So would this need a firemens switch as its high voltage?
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    500v IR test shock?

    Yes my multimeter in continuity mode goes up to 19.99k and so then my next available option to get a higher range would be 250v. Why do I see and read lots of people using it at 500v for this test? I've never liked the idea of doing this.
  8. B

    500v IR test shock?

    Theoretical. But would not want something like this to happen in future so thats the reason for asking.
  9. B

    500v IR test shock?

    when testing pipework to see if its extraneous using the 500v ir test is there a possibility of an electric shock if someone in the house happened to be touching the pipe at the same time of testing? Yep, I'm prepared for some stick here so fire away ?
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    High Zs

    Depends how I feel on the day.
  11. B

    High Zs

    Has RCD protection as well. Most answers confirming what I thought with it being ok but have heard mixed opinions on this before.
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    High Zs

    13amp FCU off ring main supplying sockets in shed. Zs at furthest socket in shed is 1.26ohms which is too high for a 32 amp mcb. Would you use the 13amp fuse in the FCU to meet your Zs reading? Zs at FCU is 0.70.

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