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17th edition design given 18th edition certifcate

Former Community Member
Former Community Member
Hello, I recently purchased a new build home on a small development; a rather unique situation has occurred that I thought was interesting and might interest some people here to discuss. It's still currently unresolved but progress is being made.


The house has a NICEIC BS 7671: 2018 domestic electrical installation certificate dated 5/2/20 with no departures identified; with the only comment being no water bond due to plastic pipework. I noticed that no SPD had been fitted so asked the contractor for the completed risk assessment to determine that it was not needed. Initially they did not know what I was on about and then said that no SPD was fitted due to the initial design being done in December 2018 to the 17th edition. So far so good!


However on the electrical designs I have there was a revision on 27/5/2019 and at my request I later paid for an additional £1700 of fixed LED lighting to be installed throughout on 20/11/2019. After bringing this up I was told it was still to the 17th and that "any subsequent revisions are based on the regulations in force at the time of the original design". The installation certificate includes these lighting changes as many more (20+) positions are served on the circuits, everything else seems to be as the 27/5/2019 revision design.


I then asked why a 18th edition certificate had been issued with no note of that the installation is actually to 17th design and standard and was told that they had used up all their 17th edition certificates during the grace period, that the NICEIC had advised them to use 18th edition certificates but place "n/a" on items pertaining to SPDs and that their response is to amend the existing certificate to note that the installation was carried out to the 17th edition regulations.


I can forgive that yes, even a brand new home can be delivered not to the latest regulation due to a design from a grace period (as always regulations can be updated quicker than projects) but I do not get a good feeling from the 18th edition certificate being issued on a 17th edition design and installation without any indication - certainly the other homeowners on the development may not be as keen on protecting their extra gizmos as I am!



 


  • Pick your arguments, if you try it on complaining about stupid things the contractor and developers won’t engage with you and discuss things that may be considered more serious.


    Regards the requirement for installing a SPD you are using your own interpretation of the regulations, it says they are not always required in single dwellings.


    This is a discussion forum for discussing the Wiring Regulations, try discussing what they actually say.
  • Former Community Member
    0 Former Community Member
    I was under the impression that the 18th edition explicitly changes this to only be exempted when either a risk assement is performed or the value of the install does not justify their use.  Is £1700 not over some reccomended value?


    This is what prompted the discovery that the install was actually to 17th standard and design on the 18th certificate.


    I am happy to pay for SPD to be fitted as part of the resolution if needed. I would also hope that there isn't anything that could be considered more serious!

  • Sounds like it’s been carried out to the 18th and they've chosen not to fit a SPD probably mainly due to being on a spec/price that didn’t allow for one. Easiest solution is to have one fitted if you feel it’s required. As to electrical design the architect would have done locations but left circuit design to the electrical contractor especially on small sites. Out of interest how many downlighters did you get for £1700?
  • Former Community Member
    0 Former Community Member
    I think it was scheduled for 26 but 22 have been installed.


    ​​They started plastering early Dec 2019 so contractor would of had easy access and had already pulled cable for them by then as far as I am aware.


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  • davezawadi (David Stone):

    Interesting, so the installing electrician is responsible for all the stages, and then the QS has signed. In my view this does not meet the requirements of BS7671, as the design was presumably done by an unknown third party. In a build like this, the design (Circuits, positions of accessories, cable sizes CPD ratings, etc.) will usually be done by a designer working for the Architect and the Electrical sub-contractor does the work.


    Ebee covered the cert bit earlier, as in the one signature for design/ construction/inspect+test. NICEIC forms have an additional signature box for QS , notionally for checking that the details on the cert are correct. It is a variation on the model forms in BS7671 simply for their rules of enrollment. 

    The architect will know SFA about electrical installation. With new build domestic the designer will likely be the installing contractor. Anything else will be a disaster. The electrician will be given a spec simply as a plan of points of use, RCD on circuits and complying with BS7671.  The electrician will then have to plan and install this within the constraints of structure, BS7671, other trades and where stuff can realistically go. That is where the skill and expertise of a good sparky will always trump remote control.


     


  • I don't think that the NIC can do that and fully comply with BS7671. I want to know who exactly designed the install. When I find a problem of some kind, which I will, I want that person. I want to know who installed it, when that is a problem. I want to know exactly who tested it and passed the rubbish.


    None of these persons need any skill or qualification at all, and may well be unaware of the requirements of BS7671. You think that is OK Alcomax or Colin? The bathroom needs to be to part P. Who has the approval? None of those on-site need anything. This system is archaic and totally broken.


    The reality is that the main contractor doesn't care as long as the lights come on, and the NIC don't care as long as they get the money. The rest is just froth. It is the purchaser who is left with the problems.
  • David I would agree it’s not ideal especially with larger companies. We might be better with something similar to the gas safety system rather than what we have now. What would be your solution?
  • How many SPD’s are appearing now in new builds? I certainly fit them now since the cost has come down.


  • I don't think that the NIC can do that and fully comply with BS7671. I want to know who exactly designed the install. When I find a problem of some kind, which I will, I want that person. I want to know who installed it, when that is a problem. I want to know exactly who tested it and passed the rubbish.

    None of these persons need any skill or qualification at all, and may well be unaware of the requirements of BS7671.




    Had to read that again, but surely you are not saying that the person signing for Design/construct/ I+T on a Installation Certificate does not need to have any skill or qualification and maybe unaware of BS7671 requirements?


    NIC do not need to comply with BS7671, they are just a registration scheme. I am sure that the OP has said, in a roundabout way, that there are signatures. Some model form versions allow for multiple "designers", but from the limited info I do not think that has happened here. It is simply an issue of 17/18th forms and someone in error of not crossing out the BS7671:2018 bit and putting in BS7671: 2017 instead. The OP did say they were written certificates. So really just a clerical error; pales into insignificance to some of the grossly outdated cut and paste approach to designs and documents churned out by so called "professional" designers, surveyors, consultants and architects. I still get proposals from Architects and Surveyors referencing the 16th edition. It is the end Electrician that has to sort all this out.


    If you want "full compliance with something" you are only going to get that with prescription by law and for there to be a deterrent. That is not going to happen. As with all things, applicable to all trades and contractors in construction and, generally, in provision of services for reward in society, it is a free market . Take Glenfall type cladding as one example of that and some consumer unit manufactures using the cheapest components possible as another. This list will never be exhaustive. It is a market economy where the encouragement is to get away with what you can to maximise profit and avoid being found out, or at a minimum, to have an opportunity to actually have some kind of turnover to tick over. Even if you are found out, you can always claim you were testing your eyesight. You do mostly get what you are prepared to pay for. No one is going to pay for every electrician to be EngTech the same as no one is going to pay gig economy nursing home carer's a living wage and pay for the time they really need for them to do the job correctly.


    edited for weird spelling








     


  • Former Community Member
    0 Former Community Member

    As a belated update to this the NICIEC eventually attended twice after some sockets were shown to have been terminated through the sleeve of CPC and that a switch fuse  to protect tails was added without any testing.

    The design was a copy from another development, 24 way dual RCD board using type AC rcds, 1 spare way. These rcd groups included an ev charger and no effort to split the lighting resulting in the whole house in darkness during a fault. Earth leakage was measured presumably from included modern devices and the led lighting.

    The certificate has been reissued after circuit rearrangement as best as possible and ev charger made good. 

    An outstanding issue is that the real maximum demand could very easily hammer the switch fuse rating if the ev charger is used for a few hours. Now that the circuits have been rearranged the max load on one rcd group is quite high, above the rating of the rcd without diversity, and the switch fuse is down rated compared service head fuse by a lot, so stuck as upgrading it would bring it past the rating of the rcd. (Niceic no longer interested).

    All in all messy and a disappointing affair and has left me shocked at the state of the industry in certain areas.