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BS7671 Amendment 2 transition period on existing projects

Matt Jarvis

My question relates to the latest amendment to the wiring regulations; BS7671:2018:A2:2022 and the transition period on live projects.

I am currently working on multiple large residential projects that have been designed upto Stage 3 and tendered, but will not commence on-site until after the 27/09/22 which is the withdrawal date of AMD 1. The new regulations state that electrical installation commencing after the withdrawal date (27/09/22) must comply with AMD 2. 

We now have an issue of the developer coming back to us shouting about additional costs  due to the addition of AFDDs, which are required as part of AMD 2 but only 'recommended' as part of AMD 1, so have not been included in the original design. 

Has anyone had any issues with this on their projects? As the design is complete and tendered can we not install to AMD 1?

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    I would consider that the installation needs to comply with the requirements in force at the date that the work starts. I do not feel that a pre-existing tender permits of work being done to an earlier and no longer applicable standard.

    I do not consider that the fact that the work was designed and tendered for at a time when requirements were different to be relevant. I suspect that AFDDs are now required, and that the developer is liable for the extra costs.

    This presumes that the tender included wording like "Designed and priced under [regulations and amendments therefore as applicable on date DD-MM-YY] " Or something similar.

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  • 0

    I would consider that the installation needs to comply with the requirements in force at the date that the work starts. I do not feel that a pre-existing tender permits of work being done to an earlier and no longer applicable standard.

    I do not consider that the fact that the work was designed and tendered for at a time when requirements were different to be relevant. I suspect that AFDDs are now required, and that the developer is liable for the extra costs.

    This presumes that the tender included wording like "Designed and priced under [regulations and amendments therefore as applicable on date DD-MM-YY] " Or something similar.

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