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  1. 2 points
    You only have one earthing conductor the earth in the 16.0 cable is a cpc. Providing it is of adequate csa to carry fault current it's size will become a factor if it is required to support main protective bonding above this size, this is issue 1. Issue 2 is multiple TN-C-S supplies sharing a common gas supply and in my opinion the main earth terminals of all these supplies should be connected together.
  2. 2 points
    They laugh because they don't KNOW!
  3. 2 points
    Couldn't disagree more, why should we have to fork out for more courses/yearly costs. Best practise would be for DNOs to come out and fit an isolator in a free and timely manner when one is requested. Although it's the supplier/DNO difference it should be worked out between them that it is done as standard at every meter upgrade/replacement. Without an isolator present there shouldn't be any issue/potential issue with an electrician pulling a DNO fuse to enable safe isolation.
  4. 2 points
    will doing so ensure satisfaction and happiness?
  5. 2 points
    I would be delighted if someone was going to guarantee I will live another 55 years and would hapilly listen to all the sh1t as my payback.
  6. 2 points
    If you do it correctly you can extend the PME , nothing to do with exporting it. You don't export PME, you extend it, Nothing wrong with that, But, you should never export a TN-C-S earth outside the EZ Whether it's in the rega or not, remember, the regs are just guidance, not statutory, a competent person with a sound understanding of earthing arrangements will understand the inherent dangers associated with exporting a TN-C-S earth
  7. 2 points
    Hi all, so finally found an electrician who came round today and simply switched over the tails to the kitchen CU from the main feed near the meter. They had simply wired them the wrong way round and blatantly didn't test the circuit other than switching something on. I've got him booked in to run a full EICR to see what else may be amiss before we start playing around with additions, re-wires etc. Thanks everyone for their input and glad it got sorted.
  8. 2 points
    I met one last week (he had it on his Tee Shirt), he was telling me and a customer loads of stuff, the customer was enthralled, I just kept quiet thinking....... Really........ Ideal though as after he said this and that I get to bill them more for not-needed stuff
  9. 2 points
    agree 100% why do people fit dual rcd boards in commercial properties? RCBO boards with mcb for circuits which don’t need RCD protection.
  10. 1 point
  11. 1 point
    First of all, the adiabatic can not be used as an alterative to table 54.8 (used to size bonding conductors on a PME system), it can however be an alterative to a CPC sized from 54.7. So you have to decide whether your earth in your T&E is a conding conductor as well as a CPC, or simply just a CPC. It sounds like you are heading for the later as you are saying in some cases stuff is bonded back to the DB (if bonding ran back to the intakes then the earth of the T&E would simply be submain only) But, and this is a big but, when you say "However the gas meter for this boiler is located outside of the this office suit area in a communal toilet area. and is bonded to another office supplies earthing system MET." it jumps out at me that the equipotential zone is not established correctly, if you are treating each unit as an individual equipotential zone but some were heated by boilers elsewhere, then you'd have to bond the heating pipework flow and return and possibly DHW as well as it entered each unit, then you'd have to ensure that you couldn't be in contact with more than one EPZ at a time. Assuming this is a smallish multi occupancy block then, I think I'd be looking to establish one equipotentail zone for the whole lot; big earth bar near the intake, pick up all the incomming services (which are probabaly all off a ryefield or similar?) and then pick up all other metalic services entering the block,
  12. 1 point
    Unless you want to set fire to it
  13. 1 point
    It's not compatible with our car,,,, but then again that's not surprising, given that it's an EV
  14. 1 point
    I must agree that across all of @Traineeboy questions ALL of them are relevant AND he is the only one that tries to come up with his own answer first and asks for clarification ...he will go far
  15. 1 point
    Should be a requirement that an isolator is fitted whenever the meter or DNO service head are worked on, not as if there's no meter roll outs happening at the minute...
  16. 1 point
    BS 7671 requires a CPC continuous from the fuseboard to each and every point on each circuit lettuced installation training you are getting
  17. 1 point
    Agree 100% Lets be proud, as a nation for what they have achieved so far. For ProDave - if it was Scotland in the final I would be backing them
  18. 1 point
    OK, I understand the question now. I agree with Binky's advice above. Don't skimp on capacity. Low power inverters don't increase in price proportional to their power and for reliability it's worth getting one well above your nominal load so its semiconductors can have a nice unstressed life. I just looked at CPC, and a Duracell branded 800watt one is about £70. You can pitch your rating lower if you want, but you won't save much for a quality one. You also want substantial DC wiring in your car. Have an auto electrician wire you a fused supply straight from the battery. Don't try to rely on the cigarette lighter socket.
  19. 1 point
    Well, our National team are finalists - so well done and as a non footie fan I have my fingers crossed for you tonight
  20. 1 point
    https://www.hse.gov.uk/pubns/indg231.pdf Any person thinking the correct way to test an electrical installation, alteration or addition by just switching the power on, is about as sensible as checking if you can walk across a road blindfolded, with earplugs in. Pedantic NO. Sensible YES. The situation you describe is not very odd at all, rather simple and easy to diagnose by any competent person with basic test equipment, who has connected numerous RCD's and/or other protective devices during their career. You could possibly learn a lot by taking on board various comments from this thread. Doc H.
  21. 1 point
    These scammers are at it again. Almost word for word copy of the previous emails offering "exclusive" offer for you to "look after" 470 rental properties They want money up front Don't sign up, don't pay them. There are loads of sparks and plumbers spitting feathers because they parted with about £2k and got no work. I won't name the company (ies) for the sake of saving the Forum hassle
  22. 1 point
    No you need to try and eliminate the circuit breaker. Ideal set-up; from meter to main switch, then service terminal blocks from here you split to the consumer unit and the separate switch-fuse for the outbuilding.
  23. 1 point
    why do people want to watch a group of overpaid people run around a field for a few hours kicking a bag of air? make it more of a challenge and i might be interested. maybe have a few balls. some filled with lead. maybe a few small swimming pools with some sharks or crocs in it etc that they need to cross
  24. 1 point
    I wasn't offended - I only joined Stroma to save money over my previous CPS fees. When all you need is a way to comply with Part P, most of what the CPS's claim to offer are completely irrelevant
  25. 1 point
    spoken by a truly arrogant NIC AC

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