Search results

Search results

You will need 50 posts under your account before joining in with this thread because you can't link out without 50 posts first.

  1. J

    Earth rod and bonding

    I've just done an EICR on an install earthed TT . The Ze on the rod was high 245 ohms , which in theory is fine as it is less than 1667 and the equation Ra X 0.03 > 50v is satisfied . When the gas and water bonds are reconnected the Ze drops down to 4.4 ohms , Do I put another rod in ? The...
  2. J

    low M-ohm

    doing an Ins resistance test across all circuits at the CU with load bridged out( L-N shorted ) I have a low reading - 1.03M ohm . after investigation found this low reading goes once the boiler spur is isolated . any one had similar results ? this is not the first time ive had appliances give...
  3. J

    installation cert

    point taken
  4. J

    installation cert

    he had been to do a board change 3 months ago for which a inst cert had been done This time tenant needed a washing machine point put in which the spark said would be easier to fit rather than supply it off the existing ring . circuit details should be filled in as much as possible ?
  5. J

    installation cert

    received an installation cert from one of the sparks , it was for a new circuit for a washing machine he installed on an exisiting domestic CU , just want to know how much info should be included on the circuit details and results page . Ive informed him to go back and record all the circuits...
  6. J

    IR test

    Some advice please . when doing IR test , generally i test the lighting circuit with the load shorted (L-N) and test across earth and live or neutral as removing all lamps and disconnecting fluorscents is time consuming . now and again i will test the whole CU in this way . Firstly , why is it...
  7. J

    Supplementary equipotential bonding

    Could I have some clarification on this issue , the tight customer does not want a new CU , so the only option is supp bonding the bathroom , from what I've read is link the hot and cold copper pipes and the rad and that's it . Bs7671 does not require a link from the supp bond to a cpc on...
  8. J

    Tncs or TT ?

    I meant to , I'll explain it , at ceiling level 2 tails old looking insulated in cotton go into a new grey 1361 cut out .
  9. J

    Tncs or TT ?

    Does the DNO change TT systems into tncs by changing the head to a tncs cut out and providing met? The Ze I measured was 0.60 and when main earth reconnected reding of 0.40 on the met . There is an earth electrode and 30 mA rcd as a main switch . Is this a TT system or tncs ?
  10. J

    Wylex main switch

    Hi , could someone help me please , I did an eicr yesterday. Few questions now the ccu is the old Wylex board with push in type mcb's 3871 type , what is the main switch bs en number ? Can I say its a limitation as it's not evident ? the Ze I recorded is 0.63 ohms it's a tncs , is this a c2 or...
  11. J

    test rig with fault causing fault elsewhere

    It would seem that some people have got the wrong impression about what the aim of this test rig is about , to clarify , basically want to show the first steps , and the only ones necessary for tenants to put their supply back on in the case of say a lamp causing the rcd to trip out , thats it ...
  12. J

    test rig with fault causing fault elsewhere

    no but the socket is protected by an rcd
  13. J

    test rig with fault causing fault elsewhere

    :confused5: I have been asked to wire up a couple of CU on plug tops on a display for tenants to show how to go about basic fault finding before they send for a call out . I used 2 wylex boards , one with dual rcd and one with none . I put a neutral earth fault but that resulted in the plug...
  14. J

    9.5 kw shower on 6mm ?

    its 40 Amp
  15. J

    9.5 kw shower on 6mm ?

    just been to a job , saw that the shower 9.5 kw is on 6mm t&e the cable goes in the wall and under floor boards ,No insulation, to the board (A cable run of no more than 10 m) . I said downgrade the shower to 8.5 max. Is it really necessary ? never quite sure , its borderline to me .
  16. J

    Who is the best to register with ?

    Well then i'll just take the cheapest option . personally i think niceic have advertised themselves as the "be all and end all" of domestic electrical which is unfortunately BS , I have a 2391 cert and tbh thought it was my ticket to prove that I am competent enough to put my signature on a cert...
  17. J

    Who is the best to register with ?

    I'm looking to take the next step , to register with a self certification body , but not sure who is the best ? any recommendations ? :dizzy2:
  18. J

    PIR or not to PIR ?

    does anyone know why/how a PIR done by a 2391 spark (not part of a scheme) is acceptable to LABC and yet an installation cert done by the same spark(for notifiable work) needs to be backed up by membership to a scheme ? I understand that some work is notifiable , would it be acceptable to supply...
  19. J

    Domestic PIR but not in NIC??

    does anyone know why/how a PIR done by a 2391 spark (not part of a scheme) is acceptable to LABC and yet an installation cert done by the same spark(for notifiable work) needs to be backed up by membership to a scheme ? I understand that some work is notifiable , would it be acceptable...
  20. J

    6mm or 10mm to an electric shower ?

    the size of shower is up to me , something i forgot to mention is they fed the cicuit off a 40A breaker , which i know is easier to change the mcb than to rewire

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top