UL 231 Ed. 11-2025
1.1 These requirements cover power outlets, with or without integral mounting posts or pedestals, and power outlet fittings for use in accordance with NFPA 70®, National Electrical Code®
AC power plugs and sockets
OverviewOverview of connectionsHistorySafety featuresExtensionCross-compatibilityStandard types in present useUnusual types
AC power plugs and sockets connect devices to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically operated device, often via a cable. A socket (also known as a receptacle or outlet) is fixed in place, often on the internal walls of buildings, and is connected to an AC electrical circuit. Inserting ("plugging in") the plug into the socket allows the device to draw power from this circuit.
1910.334
Portable electric equipment and flexible cords used in highly conductive work locations (such as those inundated with water or other conductive liquids), or in job locations where employees are likely to
Relocatable Power Taps
In non-patient care rooms, power strips meet other UL standards. In addition to CMS requirements, the following NFPA code requirements also apply: The RPT is permanently attached
IEC 60309-1:2021 Plugs, fixed or portable socket-outlets and
It also sets out requirements in aspects like the design and manufacturing of plugs and socket-outlets, electrical safety, environmental adaptability, mechanical strength, interchangeability, as well as
Standard US Outlet Types (2-3 Prong,110-120V, GFCI/AFCI )
20A outlets are used to operate appliances and devices that have higher power requirements. That includes items that work in the kitchen and laundry room, such as dishwashers and washing machines.
Power Supply Circuits and Receptacles for Portable Electric
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518.5 Supply
This first level subdivision focuses on the requirements for portable switchboards and portable power distribution equipment. It requires that this equipment is supplied only from listed power outlets or
AC power plugs and sockets
The International Commission on the Rules for the Approval of Electrical Equipment (IECEE) was a standards body which published Specification for plugs and socket-outlets for domestic and similar
Electrical Code Rules for Portable & Temporary Electrical Power
In addition to the 210.8(B) requirements, GFCI protection shall be provided for 125-volt, single phase, 15- and 20-ampere receptacle outlets that are used by personnel for assembly and disassembly, or