NEC in the Facility

April 14, 2009
Intrinsically safe installations lose that status if you don’t separate intrinsically safe conductors from nonintrinsically safe conductors [504.30(A)].

Intrinsically safe installations lose that status if you don’t separate intrinsically safe conductors from nonintrinsically safe conductors [504.30(A)]. This concept of conductor separation is the major thrust of Art. 504. About half of the Article consists of the details of achieving this separation. Caution: Don’t separate the equipment grounding (bonding) conductors from those of nonintrinsically safe systems, because that would cause a difference of potential.

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