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Maximum demand on Electrical installation certificates

Dom

HI all, what are the thoughts on the maximum demand section of the Install cert. I ask this as I have seen many different approaches to this over the years with some people matching the fuse, other utilising the OSG process with diversity. My question centres around the fact in EV charge point installs the max demand is now very significant in respects to the DNO and the ENA process.

The max demand figure on the ENA and the cert must correlate? Does any one have an opinion on this or how it would affect the legitamcy of a certificate or an ENA in respects to governance - would it affect for example an insurance claim? If something was to go wrong?

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    In our new all electric world, the ADMD number must have gone out of the window, because we must all fit car chargers and heat pumps. If it actually meant anything, the DNOs would say not likely to both upgrades and the Government policy would look very silly indeed. In reality not many can have both of these (or even one) before there is trouble with the system, which only supplies 1-2kW per house on average. If the peak gets too far from the average, large fuses start popping with a good crack, also known as trouble at the substation (not Mill?) and hopefully in Westminster too!

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    In our new all electric world, the ADMD number must have gone out of the window, because we must all fit car chargers and heat pumps. If it actually meant anything, the DNOs would say not likely to both upgrades and the Government policy would look very silly indeed. In reality not many can have both of these (or even one) before there is trouble with the system, which only supplies 1-2kW per house on average. If the peak gets too far from the average, large fuses start popping with a good crack, also known as trouble at the substation (not Mill?) and hopefully in Westminster too!

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