1. Wiring for Intrinsically Safe Circuits
In intrinsically safe construction, safety shall be maintained as an intrinsically safe system involving intrinsically safe apparatus and safety barriers connected thereto, and electrical wiring (through intrinsically safe circuits) interconnected between them. In other words, even when safety requirements are maintained individually by intrinsically safe apparatus and safety barriers, they shall
not be affected by electrical or magnetic energy caused by electrical wiring.
To make electrical wiring for intrinsically safe circuits, you must: