UL 498-2019 pdf free download

UL 498-2019 pdf free download.Attachment Plugs and Receptacles.
the exposed area is recessed for a distance not shorter than the length (measured along the blade) of the exposed area.
15.2 Grounding and polarization
15.2.1 A grounding outlet device shall be so constructed that the grounding member of the corresponding attachment plug cannot be inserted by hand into any outlet slot to touch the live contact.
15.2.2 A device consisting of two or more pieces shall be such that polarization cannot be defeated by improper assembly during installation.
15.2.3 A cord connector or current tap having a 1-15R nonpolarized configuration shall not accommodate an attachment plug having polarized blades to the extent that the wider (polarized) blade can make electrical contact with either outlet device contact. Compliance shall be determined by the test described in Improper Insertion Test, Section 100.
15,2,4 A cord connector or current tap having a 1-15R polarized configuration shall not accommodate an
attachment plug having polarized blades in other than the intended orientation to the extent that the wider
(polarized) blade can make electrical contact with the contact of the narrower (non-polarized) slot.
Compliance shall be determined by the test described in Improper Insertion Test, Section 100.
15.3 Mating and interchangeability
15.3.1 A general-use device, including any configuration illustrated in Wiring Devices — Dimensional Specifications, ANSI/NEMA WD6, the Standard for Wiring Device Configurations, UL 1681. or the Entertainment Technology Dimensional Requirements for Stage Pin Connectors, ANSI!PLASA E1.24, shall be constructed so that electrical continuity between respective and similarly marked terminals is established automatically when the mating plug and outlet device are connected together.
Exception No. 1: A 2-pole non-polarized device is not required to comply with this requirement
Exception No. 2: A special-purpose device for use in equipment where intermixed connections do not increase the risk of fire, electric shock, injury to persons, or damage to equipment, is not required to comply with this requirement.
15.3.2 An outlet device shall not accommodate an attachment plug other than one that is specifically intended for use with the outlet.
15.3.3 A male or female device that is capable of making a conductive connection with a female or male device of an established general-use design shall be constructed and rated for complete and correct interchangeability with the established design.UL 498-2019 pdf free download.