Chapter 12 Ex Protection Concepts
Difference between Flameproof & Explosion proof boxes • Enclosure must have recessed screws or bolts for access • 1.5 safety factor vs. 4 times • Typically must be machined and fabricated at the factory vs. the field • Most Ex ‘d’ enclosures individually tested Flameproof vs. Explosion Proof
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Session 13 –Wiring Methods & Cable Standards
sourceiex.comcable bending radii. Cable racks and trays shall be closed by removable top covers, allowing adequate ventilation, in situations where: ‐mechanical damage of the cables is likely to occur during plant maintenance activities, ‐oil or chemical spillages on the trays can be expected,
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