there is a DB board fed from a centre tapped transformer only on single pole breakers. The board feeds instrumentation. Is there any issue changing it to 110v and tie the neutral to earth there is no socket outlets fed on this so can’t see it as an issue?
It would be, except that is for the same fault current and so gives the same disconnection time on the higher voltage. As the voltage rises the chance of surviving a shock fall, so the exposure time has to be reduced - so we need the fault current to rise and the fault duration to fall.
It would be, except that is for the same fault current and so gives the same disconnection time on the higher voltage. As the voltage rises the chance of surviving a shock fall, so the exposure time has to be reduced - so we need the fault current to rise and the fault duration to fall.
