The statement "IE The Enclosure metal shall not be part of the equipment grounding conductor" means that the metal enclosure of the equipment should not be used as the equipment grounding conductor.

Equipment Grounding Conductor (EGC)

An EGC is a conductive path that connects exposed metal parts of electrical equipment to the grounding electrode system. Its purpose is to provide a low-resistance path for fault current to flow back to the source, thereby protecting personnel and equipment from electrical shock.

Enclosure Metal

The metal enclosure of the equipment provides a protective barrier against electrical hazards. However, it should not be relied upon as an EGC because: It may not provide a reliable electrical connection. It may be painted or coated, which can impair its conductivity.* It may be damaged or disconnected, interrupting the grounding path.

Separate EGC:

Instead of using the enclosure metal, a separate EGC must be installed. This EGC should be a green or bare copper wire sized appropriately for the equipment and connected to the equipment grounding terminal. It should then be run to the grounding electrode system.By separating the EGC from the enclosure metal, it ensures that a reliable grounding path is established and maintains the integrity of the grounding system. Flag for review