Recent content by jc_150

  1. J

    E27 Light fitting cant find one online?

    Hi Sam, If you are a DIY your best bet is proably Amazon, they have many different E27 fittings and also have B22 (standard UK bayonet ) to E27 adapter fittings so there is no wiring to change. Hope this helps JohnC
  2. J

    BS7671 PDF model forms for 18th Edition Amendment 2 (2022) - now available

    Hi Steve, These documents are brilliant. May I have permission to use them for teaching at college/ training centre, as it would make learner's assignments so much more professional. (and easier to read and mark) Also would it be possible to add in the EICR Schedule of Inspections intake...
  3. J

    Metrel MI 3152 Help

    Hi again, Found this here: https://www.metermarket.co.uk/get_manual_file/1794/ it is the short guide and on page 6 it shows all the message symbols and the one you have indicates Fuse F1 is blown Regards JohnC
  4. J

    Metrel MI 3152 Help

    HI, Not used one of these instruments, but looking at the user guide, I can see you have it set up for a type C circuit breaker. You said it was for sockets in your house. Do you have type C, circuit breaker protecting your sockets? Will read further the user guide, see if I can locate anthing...
  5. J

    Customer not paying

    Hi, when I had this situation, I researched what to do and I found this on a UK governmet web site : https://www.gov.uk/late-commercial-payments-interest-debt-recovery/charging-interest-commercial-debt Here is an extract. It is for companies only I think but not sure. Mine was company to...
  6. J

    18th edition exam question..

    Hi guys, Looking at this question in detail, I would like to add my two pennyworth. I think the question was sound and correct. It is peoples mis understanding of technical terms that leads to questions being interpreted as not being correct. In part two (definitions) of the regulations it...
  7. J

    48.3ms x 1 rccb

    Hi Guys, With reference to the answers given here, I am going to stick my neck out and say that there is no non compliance in an RCD not tripping within 40 ms @ x5. The regulation 643.8 has a note that states for an RCD used as additional protection: NOTE: Effectiveness is deemed to have been...
  8. J

    Looking for somewhere in Essex/London to book an AM2 test

    Hi there, I deliver 2391 and 18th courses at a centre in Essex, which is also an AM2 registered centre. It is highly thought of in accordance with learners that I meet on the 2391 who have also completed their AM2 there. It is in the CM19 5 AN area and called All Electrical Training. There are...
  9. J

    Currant Problem.

    Hi When daughter was a child, she put a hot cross bun in the toaster which jammed the mechanism in the down position (think the bun was thicker than the slot so wedged in) and we had a mini fire in the kitchen. No lasting damage, hence hot cross buns banned from the toaster even today after more...
  10. J

    Going to Level 3 course skipping Level 2

    Hi guys, If you are an experienced worker but do not currently have a completed apprenticeship or NVQ 3, I believe the Mature Candidate Assessment scheme is either coming to an end or has already finished and being replaced with Experienced Worker Assessment. The best information I can find is...
  11. J

    Temp factor .8 and 1.2

    Hi John, This is my take on it. The values of Zs in BS7671 are taken at 70 Degs. C and those in On Site guide are at 10 Degs. C. Copper changes resistance by approx. 2% for every 5 degs. C . change Therefore difference between them is 60 Degs. (12 lots of 5 degs.) so from 10Degs. C to 70 Degs C...
  12. J

    By Pass valve

    Thanks for all the replies and suggestions. I have moved this post onto the plumber's forum, and had similar replies to on here. I have reached out to a local plumber to show me the best way forward and I have printed your replies to show the plumber. Waiting for a response. I would ideally like...
  13. J

    By Pass valve

    Thanks for that idea, will modify my question to the plumbing forum. Hadn't thought about a towel rail, could be the easiest plumbing solution. John
  14. J

    By Pass valve

    Thanks for that. Will cut and paste it onto a plumbing forum. Saw central heating and thought this was the right place. John
  15. J

    By Pass valve

    Hi all in the forum, I have a 6 radiator Y plan system with pump over run. There are 5 TRV's on the rads and the living room radiator is open at all times. I have now put Hive thermostatic rad valves on all the radiators with TRV's. It works ok, but there is an annoyance because if for example...

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