First, for projected data reported on the FR Y-14A/Q and for actual data reported on the FR Y-14A/Q/M reports, collectively, the CFO (or equivalent senior officer ) of a LISCC U.S. IHC would be required to attest that the reports have been prepared in conformance with the instructions issued by the Board.
The purpose of fuse is to allow a minimum current necessary for the function of the equipment and the current carrying capacity of the connecting wires. When the current exceeds this minimum value, the metal wire in the fuse, melts and the circuit is open (switched off automatically).
So when there is separate wires for neutral and ground, a singe wire fault (cut or short circuit to other wire) on any wire going to outlet does not cause immediate danger to the user of the equipment: Live shorted to ground or neutral: fuse blows immediatly. When fuse is blown then the dangers of electricity are gone.