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BS7671 Application to Power Stations

Chris Bailey

Please can someone offer some advice on the implementation of BS7671 on a new build power station in the UK. I have been challenged that the installation can be inline with IEC standards (because its a power station) , which to my understand isn't considered best practise in alignment with the requirements of the electricity at work regulations 1989.

In short my interpretation in the use of BS7671 covers the installation of LV electrical equipment to ensure that electrical installation work meets the requirements of the Electricity at Work Regulations 1989.

I'm not sure why anyone would specify an IEC standard for electrical installation when we have BS7671 that will similar but have UK specifics.

Also I am not sure why a 'power station' would be omitted from the scope of BS7671 when the electricity at work regulation 1989 applies there.

Any thoughts  on how to navigate this challenge would be appreciated?

Kind regards.

Chris

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    I agree with the above, and also ask who is asking, and why?

    Reason being that if this question relates to new installation work then there may (should) be a contract specifying standards to be applied. Note that if connected to a distribution network the standard terms of connection often require that the installation follows BS7671. Likewise for other contractual situations.

    If it's not to BS7671, it is reasonable to ask what standard(s) / policy(s) are applicable to the section of installation in question, or if it's generally to a standard with deviations, the justification and risk assessment for that deviation. For large organisations there could well be company polices written to suit their operational needs and based on / justified by experience. Often, but far from always, these standards start with words to the effect of "Follow BS7671 except..."

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  • 0

    I agree with the above, and also ask who is asking, and why?

    Reason being that if this question relates to new installation work then there may (should) be a contract specifying standards to be applied. Note that if connected to a distribution network the standard terms of connection often require that the installation follows BS7671. Likewise for other contractual situations.

    If it's not to BS7671, it is reasonable to ask what standard(s) / policy(s) are applicable to the section of installation in question, or if it's generally to a standard with deviations, the justification and risk assessment for that deviation. For large organisations there could well be company polices written to suit their operational needs and based on / justified by experience. Often, but far from always, these standards start with words to the effect of "Follow BS7671 except..."

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