Code Change Summary: Ground-fault circuit-interrupter (GFCI) protection is now required for receptacles on 15-kw or smaller portable generators.

The NEC^® is used by electrician, inspectors, manufacturers, nationally recognized testing labs and many others. Some requirements in the NEC^® have nothing to do with the field electrician but have everything to do with the manufacturer who creates the equipment. This is one of those cases.

The 2014 NEC^® now requires all 125-volt, single-phase, 15- and 20-ampere receptacle outlets that are a part of a new 15-kW or smaller portable generator to either have GFCI protection for personnel integral to the generator receptacle or the receptacle shall not be available for use when the 125/250-volt locking-type receptacle is in use. If the generator does not have a 125/250-volt locking-type receptacle, this requirement does not apply.

For generators manufactured or remanufactured prior to January 1, 2015, listed cord sets or devices incorporating listed ground-fault circuit-interrupter protection for personnel identified for portable use is permitted.

Even though this requirement targets manufacturers, the benefit is for the consumer. Quite often, portable generators of this size are used on job sites, camping and other situations where standing water or puddles may be present. Often, it may be raining when the generator is being used. Without the GFCI protection, a hazard exists when plugging in cord and plug connected portable tools.

Below is a preview of the NEC^®.  See the actual NEC^® text at NFPA.ORG for the complete code section. Once there, click on the “free access” tab and select the applicable year of NFPA 70 (National Electrical code).