Electrical Code…
- Exposed (as applied to live parts)
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Capable of being inadvertently touched or approached nearer than a safe distance by a person.
Informational Note: This term applies to parts that are not suitably guarded, isolated, or insulated.
- Exposed (as applied to wiring methods)
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On or attached to the surface or behind panels designed to allow access.
(National Electrical Code® 100-1)