UPS Neutral Earthing and Body earthing in Delhi One of the first Way to getting the grounding Earthing system right is knowing whether to design for a separately derived system, which depends on the detailed arrangement of the bypass neutral. The NEC defines a separately derived system as “a premises wiring system whose power is derived from a battery, from a solar photo voltaic system, or from a generator, transformer, or converter winding, and that has no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system.” This discussion will focus on the requirements for such a system. Earthing Manufacturer in Delhi