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Requirements for an electrical design & the EIC

Heera

Hi All

Just a quick question, is it a legal requirement the following section to be signed? The main contractor, sub-contracted a designer and the employed a installer, however hey signed all sections apart from the design section. I can't remember it being a legal requirement but the MC can sign it as a departure?

I/We being the person(s) responsible for the design of the electrical installation (as indicated by my/our signatures below), particulars of which are described above, having exercised reasonable skill and care when carrying out the design and additionally where this certificate applies to an add1t1on or alteration, the safety of the existing installation is not impaired, hereby CERTIFY that the design work for which I/we have been responsible is to the best of my/our knowledge and belief in accordance with BS 7671 :2018, amended to ….. except for the departures, if any, detailed .as follows:  

Thanks

Heera

  • 0 in reply to Philip Oakley

    haha!!

    - " I only made the tea, and did nothing more complex when  I worked upon project XX "

    is not the same as 

    "I was the design authority for the self-test and fault reporting unit on project XX but I also made some tea on those days when the traffic was good & I was first one in the lab."

    We have probably both worked with both characters over the years,
    Mike

  • 0 in reply to GTB
    GTB said:
    I remember something the tutor said to myself on my original C&G 2391 course and one of those satements that sticks with you for life!

    I think that we must have had a same tutor. :-)

    I think that you could just about have an EIC with no design if you replace a broken consumer unit like-for-like. Other than that, I struggle to think of anything more than minor work which does not involve an element of choice - in other words, design.

  • 0 in reply to mapj1

    The bit that most miss (as registration applicants) is that they fail to say what they DID, rather than what they were `Responsible` for. That is, how they avoided being as useful as a chocolate fireguard, as they say Grimacing (e.g. did they ever say 'No', or initiate extra actions/work/reviews.. - all the authority, but "Without initiative, leaders are simply workers in leadership positions" ). 

    Mind you, you can't beat a good cup of tea [HHGTTG]

    In the context of the EICR, those that test and record their figures for the installation have the easier time about signing for those results, but, as discussed, there's a bit of a bind about what compromises the design intent that is beyond the tick box compliance. Any system that is 'functional' (does extra stuff) starts to get confused between 'interface' specification compliance and the functional requirement, it's specification, and the verification of compliance

  • 0

    Quote from your spec

    "

    5.3 Detailed Design

    Notwithstanding the dimensions given within the Particular Specification the Contractor shall confirm by measurement on site the requirements for all cabling and plant provided within the Contract. Cabling and plant shall be provided compatible with site measurements.

     

    The detailed design shall include, but not be limited to:

    • Cable sizing calculations to ensure correct sizing, type, length and method of installation in the light of the plant and installation provided.
    • Cable installation design calculations shall take into account ambient temperature in compliance with BS7671 (see Guidance Note).
    • Finalising all cable routes including sizing of cable containment (ducts, tray, trunking, conduits, etc) including mounting arrangements.
    • All cable sizing calculations and test sheets shall be produced using the Amtech Pro Design software. Final test results shall be recorded on the Fast Test Plus format. Electronic copies of the design and test results shall be handed over to the Project Manager on completion.
    • The Contractor shall submit calculations to the Project Manager showing that the installation complies with the IEE wiring regulations. On completion of the installation the Contractor shall provide Completion and Inspection Certificates in the form prescribed in the IEE Wiring Regulations"

    Who did the Amtech calcs?  Did the project manager receive them? Are they documented? I know this bit is contractual but surely whoever did it designed it and their signature is needed on the form.

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