Andy Bush asks this question, which is about a children’s day nursery that is a house extension, and whether its electrical installation be included on the DCQ5 Domestic Electrical Installation Certificate. It has been answered by the NICEIC (Theme – Regulations and Legislation):

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Question: I’m carrying out a new electrical installation for a children’s day nursery. This is an extension to a private dwelling, which also had an extension built at the same time.
The sub-main has been taken from the house supply to a new consumer unit in the nursery.
Can the kid’s nursery electrical installation be included on the DCQ5 Domestic Electrical Installation Certificate, or does it require an installation certificate of its own?
Answer: Ideally, the installation - if separate - should be on its own certificate. If indeed this has been over a period, then each time an installation is energised, that part of the work should be certified.
The house certificate should indicate that a sub-main feeds to the other building, and then an individual certificate should be issued for that building.
If all is compiled on one certificate, then each board should have a separate test result and schedule of inspections for each building.
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