46 C.F.R. § 111.01-9 Degrees of protection.
Title 46 - Shipping
(a) Interior electrical equipment exposed to dripping liquids or falling solid particles must be manufactured to at least NEMA 250 Type 2 or IEC IP 22 degree of protection as appropriate for the service intended. (b) Electrical equipment in locations requiring exceptional degrees of protection as defined in §110.15–1 of this chapter must be enclosed to meet at least the minimum degrees of protection in ABS Rules for Building and Classing Steel Vessels, table 4/5B.1, or appropriate NEMA 250 Type for the service intended. Each enclosure must be designed in such a way that the total rated temperature of the equipment inside the enclosure is not exceeded. (c) Central control consoles and similar control enclosures must be manufactured to at least NEMA 250 Type 2 or IEC IP 22 degree of protection regardless of location. (d) Equipment for interior locations not requiring exceptional degrees of protection must be manufactured to at least NEMA 250 Type 1 with dripshield or IEC IP 11. Note to §111.01–9: The degrees of protection specified in this section are described in NEMA Standards Publication No. 250 and IEC IP Code 529 and designated in ABS Rules for Building and Classing Steel Vessels, table 4/5B.1. [CGD 94–108, 61 FR 28275, June 4, 1996, as amended at 62 FR 23907, May 1, 1997]
Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.01—General
§ 111.01-9 Degrees of protection.
