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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

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    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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  • 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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