Answer :
Final answer:
In Physics, the non-current carrying metal parts of a service raceway or service cable armor are the metallic components of an electrical installation that do not carry electric current. These parts provide mechanical protection and are grounded for safety. Proper installation and grounding are important to prevent electrical hazards.
Explanation:
In Physics, the non-current carrying metal parts of a service raceway or service cable armor refer to the metallic components of an electrical installation that do not carry electric current. These parts are typically used to provide mechanical protection for the current-carrying conductors.
For example, in a metal conduit system, the conduit itself and any metal fittings or connectors are considered non-current carrying metal parts. These parts are grounded to ensure safety and to provide a path for fault currents.
It is important to distinguish between current-carrying and non-current carrying metal parts to ensure proper installation, grounding, and protection against electrical hazards.
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