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    Notify DNO of air conditioner installation

    Question has been raised about whether we notify DNO of air conditioner installation. NICEIC registered electrician doing the installation certificate says these Daikin 14kw units might be classed as heat pumps. we have never notified before, so are asking for anyone who has experienced this...
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    MicrosoftTeams-image (5).jpg

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    1717782370667.png

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    UK Re using a 10mm cable to provide a new ring

    a cooker connection block would take the 10mm, and put the 2x2.5 in the other end of the terminal; a label on the consumer unit for that circuit stating that the 10mm has been de-rated to 32a would be useful.
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    which voltage proving unit?

    i need to purchase a voltage proving unit - i have seen Megger MPU690, Martindale PD690, and Socket and See SP400, and Fluke but difficult to compare, will need sometimes to work on 3-phase so 440+volts needed. and with the automatic ramping, is there any way to stop the 400-690v for lower...
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    recommended accessory range? something modern

    Hi, looking at ranges from MK, and BG, tend to be square, or crabtree, Schneider, very rounded. What do you fit to make house reasonably up to date and modern? They previously had a mixture of chrome and brass, all different makes. now want white plastic, uniform style throughout house. What...
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    Klik rose wiring help for em lights

    some emergency lights have internal wiring connections that can be changed to two different configurations, maintained or non-maintained. Check the instruction leaflet. sounds like it is configured for maintained.
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    Customer completed own repairs after my EICR

    The clue is in the wording -EICR is just what it says it is, a report on the condition of an electrical installation. End of. Any work done to remedy is either an EIC or a MWC. It is of course cheaper for them in the long run to get you to do remedial as you test (unless really dire) and then...
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    upload_2018-4-7_16-9-44.png

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    New, to me, lighting wiring

    see diagram. was used to save cable sometimes, if light between the two switches.
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    upload_2018-4-7_16-6-20.png

  12. G

    New, to me, lighting wiring

    second leg of two way wiring. there are two different methods of 2-way wiring, this is one of them - not necessarily recommended!
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    issues with customer and cost of parking when on jobs!!!

    Councils vary, Richmond had a traders scheme that was reasonable, Hounslow had no provision at all. Worked for some letting agents so often property was empty so no householder to not get "visitor" permits from. Wrote to councillors, was told they "would consider it" - end of story. Was in...
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    RCD Tripping - Advice Needed

    This is copied from an article NAPIT did on requirements for replacing consumer units: Requirements of BS 7671 Replacing a consumer unit is classed as making an alteration and falls into the category of new work. This must be designed, erected and verified in accordance with BS 7671 as required...
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    RCD Tripping - Advice Needed

    I expect that your RCD trips at 30milliamps, so if earth leakage approaches that figure it will trip. Of course being electromechanical they can also occasionally be faulty. Some of the guys that have replied obviously know their stuff and have offered to come and sort it so go for it. Note the...
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    RCD Tripping - Advice Needed

    he said he runs his business from home, and gave a list of IT equipment he had. then a slight earth leak on hot tub might be enough to tip it. just a thought. had an issue once with a customer who had home office, a few computers and a server - and a dishwasher! We changed sockets for ones...
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    RCD Tripping - Advice Needed

    Agree with all the comments about the way RCBO's have been used, and never a good idea to lump all power circuits. Also check that the sockets for your IT equipment have separated earths - two separate earth terminals for each socket. Get insulation and earth leakage test on hot tub. And find a...
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    Coin Meter confusion

    new meters yes, but not retrospective., as with many of the regulations - might not even be considered "Code C3 Improvement recommended"

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