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Earth Continuity Test and Polarity Test following when replacing low voltage single phase fixed electrical equipment

Rob Bain
Hi all,

Would appreciate your thoughts on the need to undertake Earth Continuity tests and Polarity tests following replacement of single phase low voltage fixed electrical equipment such as tea boilers / heating pumps / immersion heaters etc, that are supplied either from a switched and/or fused connection unit or an isolator. The existing electrical supply cable is going to be re-used as the equipment being replaced will be like for like, so there is no increase in load, no requirement to undertake a design.

This enquiry has been put forward as it is anticipated that (some) engineers, who have a mechanical background but with limited electrical knowledge (safe isolation), would be able to carry out the replacement of certain items of plant once they have completed some competency training followed by assessment and sign off by the company's NIC EIC QS. 


Thanks in advance.

Rob
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    Hi Andy,

    I appreciate your reply and the information provided, be rest assured that I have also reviewed the NICEIC process, to ensure that we are not going outside of the registration requirements. Also to double check I have looked at the interpretation of minor works in an occupied building, which BS7671 states is "additions and alterations to an installation that do not extend to the provision of a new circuit". All this is good information for me to collate a reply to my Senior Authorising Engineer before the business actually go down the road of instructing the mechanical engineers to complete any electrical works which they feel is outside of their competency limits .


    Thanks again 

    Rob
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  • 0
    Hi Andy,

    I appreciate your reply and the information provided, be rest assured that I have also reviewed the NICEIC process, to ensure that we are not going outside of the registration requirements. Also to double check I have looked at the interpretation of minor works in an occupied building, which BS7671 states is "additions and alterations to an installation that do not extend to the provision of a new circuit". All this is good information for me to collate a reply to my Senior Authorising Engineer before the business actually go down the road of instructing the mechanical engineers to complete any electrical works which they feel is outside of their competency limits .


    Thanks again 

    Rob
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