We had a power cut the other day, which in itself is not that
interesting. However after the initial loss of power we then had a
period of about 40 mins of sustained undervolts where we were receiving
a stable supply at about 80V. The EDF energy emergency line said it was
a fault on an underground cable on the HV network affecting about 650
homes in to local area.

What sort of fault with a underground cable typically results in
symptoms like that?


--
Cheers,

John.

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