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Diversity settings for apartment blocks and ADMD standard norms

Dylan Wilding

I'm looking at calculating a total diversified load for a small apartment block. Using Table A2 in the OSG i am able to get the majority of the diversity settings however does anyone know of any standard norms when it comes to diversity considering the amount of apartments. Say for example the total diversified load per apartment is 50A and there is 8 apartments. Technically you would need a 400A capable supply to feed these apartments however this doesn't take into account that not all apartments will be drawing their maximum load at any one time.

I have come across a french standard  NFC14-100 which gives correction factors depending on the amount of apartments you have. Estimation of actual maximum kVA demand - Electrical Installation Guide

Does anyone know of anything similar in British standards or standard norms used by the DNO for this?

  • 0 in reply to DShutt
    DShutt said:
    It should also be noted that the supply industry is pushing consumers to synchronise changes in demand through various forms of dynamic pricing.

    Such as British Gas's half price between 10:00 and 16:00 on Sundays. Just about time to wash and dry a load of laundry.

    It may relieve the network of pressure during the working week, but it might place quite a buden on transformers in residential areas. However, as Mike reminds us, they are not going to overheat in 6 hours.

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