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HV switch room isolating facility - mandatory requirements

Can anyone tell me in a private HV switch room that is fed from a DNO switch room is it a mandatory requirement to have the means to isolate the incoming DNO HV supply via an emergency stop for example, I believe it is but can’t seem to find the piece of legislation can anyone point me in the right direction.

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  • Thanks for this supplied you can opt out from this. I wonder what WPD view is.
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