UL 817-2015 pdf download – Cord Sets and Power-Supply Cords.
5.1 3 DIMMER – A device intended to change lighting to various intensities. 5.1 4 EXTENSION CORD SET – A cord set having NEMA fittings on both ends with an attachment plug and a cord connector of the same mating configuration. 5.1 5 FITTING – Any device that can be molded or assembled on flexible cord 5.1 6 GROUNDED CONDUCTOR – The circuit conductor that is intentionally grounded. 5.1 7 GROUNDING CONDUCTOR – A conductor in a flexible cord or cable intended to connect the non-current-carrying parts of electrical equipment, raceways, or enclosures to the service equipment or system grounding conductor, and which has: a) A green covering; b) A green covering with one or more yellow stripes; or c) No covering in certain specific flexible cord and cable constructions. 5.1 8 HOSPITAL GRADE – Intended for use in hospitals and health care facilities. 5.1 9 HOSPITAL GRADE ATTACHMENT PLUG – A molded-on or assembled-on attachment plug of configuration 5-1 5P, 5-20P, 6-1 5P or 6-20P, either of straight or right angle type, intended for use in hospital and health care facilities in other than hazardous locations. 5.20 HOSPITAL GRADE CONNECTOR – A molded-on or assembled-on cord connector of configuration 5-1 5R, 5-20R, 6-1 5R or 6-20R, either of straight or right angle type, intended for use in hospital and health care facilities in other than hazardous locations. 5.21 HOSPITAL GRADE EXTENSION CORD SET – A cord set having a hospital grade attachment plug and a hospital grade cord connector of the same mating configuration.
5.24 JOINT – Branching of a flexible cord into two or more cords. 5.25 LINE CONDUCTOR – Any conductor in a flexible cord or cable which is not the identified conductor or the grounding conductor. 5.26 OUTDOOR USE – Power-supply cords and cord sets in which the materials and construction have been found suitable to withstand the elements of outdoor exposure. 5.27 OVERCURRENT – Any current in excess of the rated current (ampacity) that can result from an overload or a short circuit condition. 5.28 OVERCURRENT PROTECTIVE DEVICE – Any replaceable or manually-resettable type device capable of automatically opening an electric circuit, under both predetermined overload and short-circuit conditions. 5.29 OVERLOAD – Operation of conductors or fittings in excess of normal, full-load ampacity rating that, when it persists for a sufficient length of time, would cause damage or dangerous overheating. 5.30 PENDANT SWITCH – A switch intended to be installed at the end of a flexible cord. 5.31 POLARIZATION – A means to identify and to provide continuity of a neutral (the identified) conductor and the grounding conductor when an attachment plug is mated with a cord connector or outlet. 5.32 POWER-SUPPLY CORD – A length of flexible cord with an attachment plug at one end and individual cord conductors not terminated in a cord connector at the opposite end. It may have additional components such as an integral strain relief bushing or individual terminals.