46 CFR § 111.79-1 - Receptacle outlets; general.
(b) There must be a sufficient number of receptacle outlets throughout the machinery space so that any location can be reached by a portable power cord having a length not greater than 24 meters (75 feet).
(c) Each receptacle outlet must be compatible with the voltage and current of the circuit in which it is installed.
(d) Each receptacle outlet must be suitable for the environment in which it is installed and constructed to the appropriate NEMA or IEC protection standard as referenced in § 111.01-9. Special attention must be given to outlets in hazardous locations.
(e) A receptacle outlet must not have any exposed live parts with the plug opening uncovered.