That wire is very powerful 😂😂, my people normally call it "U" because of the shape in which it is coiled .
Because people don't want to pay for light bill,
they usually use this wire to power up their electrical appliances .
So in case , the VRA workers are going round for check up, they usually disconnect them from the main source , so after the workers are gone, they will connect them back again.
But I see it to be risky because if the workers catch you in the act, they will bill you with huge sum of Money😐.