46 CFR 169.667
§ 169.667 Switchboards.
United States · 46 CFR — Shipping · Status: effective
Cite this
- Citation
- 46 CFR 169.667, § 169.667 Switchboards, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/230241
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Full text
(a) Each switchboard must be in as dry a location as practicable, accessible, protected from inadvertent entry, and adequately ventilated. All uninsulated current carrying parts must be mounted on nonabsorbent, noncombustible, high dielectric insulating material.
(b) Each switchboard must be—
(1) Totally enclosed; and
(2) Of the dead front type.
(c) Each ungrounded conductor of a circuit must have at the point of attachment to the power source either—
(1) A Circuit breaker; or
(2) A switch and fuse.
(d) Each switch other than one mounted on a switchboard must be of the enclosed type.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.