Q & A of the Day – What code for this deviation?

Question: At the time of original installation of a PIR device, no RCD protection was provided. This is a well-maintained property, being a time-share holiday let - one of a number where some installations do have RCD protection and some do not. It would appear that - at the time of build - different interpretation of the then BS7671 requirements were used, depending on the contractor used.

I know that on completion of the report I will be asked: 'Should it be changed or not?'. Also, as part of continuing improvements, a supply has been taken from the distribution board back outside via SWA cable to the cable television equipment - albeit this is on its own MCB. Should this be RCD protected, as it is outside equipment - although not portable?

Is there now a requirement for this to be altered, or is the Code 4 notification sufficient?

Answer: Where a PIR on an installation denotes Code 4 deviations, it is recommended that the competent person carrying out the report should advise the client to bring the current installation up to the requirements of BS7671: 2008.

As for the coding for socket outlets that could be used for equipment outdoors, the potential risk is increased and - as a recommendation - a Code 2 deviation should be used.

This would bring the outcome of the report to 'unsatifactory' and, therefore, the client would have to improve the safety of the installation.

It is the responsibility of the competent person at the time of reporting to accurately assess the risk and to be fully aware of the implications of the coding given to the aspect of the installation for its outcome. A full awareness of BS7671: 20008 is a must.

Please look at the attached best practice guide by ESC (.PDF - 771kB file size) for periodic reporting - please use the link below.

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