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DNO Isolation of supply cable.
Former Community Member
After watching a YouTube video in which the DNO was moving the customers service head and they had to join the new cable to the old lead sheathed supply cable, I was wondering how the DNO isolates the old lead sheathed supply cable so they can connect the new cable to it?
The DNO CAN isolate the supply at the substation, but that interrupts the supply to perhaps a few dozen other customers. Jointing is normally done whilst live as has already been said.
Consumers installations should normally be made dead before work, but if live jointing is needed, then I normally suggest that this be sub-contracted to the DNO or to whatever contractor the DNO use.
The DNO CAN isolate the supply at the substation, but that interrupts the supply to perhaps a few dozen other customers. Jointing is normally done whilst live as has already been said.
Consumers installations should normally be made dead before work, but if live jointing is needed, then I normally suggest that this be sub-contracted to the DNO or to whatever contractor the DNO use.
