Equipment & SystemsQuestion 319 of 521
On a portable generator, GFCI protection for personnel is generally required on which receptacles?
a.Not required on generators
b.Required on 125 V, 15 A and 20 A receptacles
c.Required only above 50 A
d.Required only on 240 V outlets
Explanation
Section 445.20 requires that 125-volt, 15- and 20-ampere receptacles on portable generators be provided with listed GFCI protection for personnel (or comply with the limited exception for older equipment). Protection is targeted at the common 125-volt convenience outlets used with cord sets, not only high-amperage circuits.
Law Reference: 2023 NEC §445.20Practice all 521 questions free — no signup required.
Related questions on this topic
- How must the wiring of an emergency system generally be arranged relative to all other wiring?
- Transfer equipment used for an emergency system must be what?
- For an optional standby system, what signage does the NEC require?
- A generator disconnecting means must be capable of doing what?
- How must emergency illumination be arranged with respect to the failure of a single lighting element?
- Which loads are typically served by a legally required standby system?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-10 Electrical Trade Examination · How we review