UL 498-2019 pdf download – Attachment Plugs and Receptacles.
2.39 TERMINAL, PUSH-IN – A terminal where the stripped end of a conductor is pushed into the terminal and the clamping pressure is maintained by a spring mechanism, without the use of screws. 2.39.1 TERMINAL, SPRING ACTION CLAMP – A terminal where the stripped end of a conductor is inserted into the terminal and a manually operated integral lever applies clamping pressure to a spring mechanism, without the use of screws. 2.40 TERMINAL, WIRE-BINDING SCREW – A terminal in which the conductor is bent around the screw and is clamped directly under the head of the screw when it is tightened. 2.41 TERMINAL ASSEMBLY, SEPARABLE – A two-piece terminal assembly provided with an integral mechanical latching mechanism(s). It consists of permanently attached pins or tabs located on the body of the receptacle and is capable of receiving a special purpose connector with leads for connection to the branch circuit. 2.42 THROUGH-WIRING – A wiring method which permits a group of receptacles to be wired in parallel to a common branch circuit. 2.43 UNIT CONTAINER – The smallest carton, package, or container, in which a receptacle is packaged. A unit container may contain more than one receptacle if they are not intended to be removed from the container for individual sale. 3 Components 3.1 Except as indicated in 3.2, a component of a product covered by this Standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this Standard. 3.2 A component is not required to comply with a specific requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 3.3 A component shall be used in accordance with its rating established for the intended conditions of use.
6 General 6.1 The ratings mentioned throughout this Standard including those mentioned in Table 192.1 represent maximum ampacity and maximum operating potential in volts for receptacles and other outlet devices such as cord connectors or current taps. 6.2 A device is considered to be for use on either alternating or direct current unless the rating includes the letters “ac” to restrict the use to alternating current. 7 Configurations 7.1 The NEMA configurations of various attachment plug and receptacle combinations referenced in this Standard are in accordance with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, and are included in Appendix B for ease of reference. The figures referenced as Section C1 contain non-NEMA configurations and are found in the Standard for Wiring Device Configurations, UL 1681. 7.2 The PLASA configurations of various attachment plugs and receptacle combinations referenced in this Standard are in accordance with Entertainment Technology Dimensional Requirements for Stage Pin Connectors, ANSI/PLASA E1.24. 8 Insulating Materials 8.1 General 8.1.1 All parts that act as the electrical insulation or enclosure of a device shall be made of an insulating material intended for the particular application and shall comply with the requirements in 8.2.1 – 8.4.1. Hard rubber shall not be employed. Exception No. 1: The internal insulating systems ofcomponents where component requirements exist are not required to complywith the requirements in 8.2.1 – 8.4.1. Exception No. 2: A small part meeting all of the following criteria is not required to comply with the requirements in 8.2.1 – 8.4.1: a) Its volume does not exceed 0.122 cubic inch (2 cm 3 ), b) Its maximum dimension does not exceed 1.18 inches (3 cm), and c) Its location is such that it cannot propagate flame from one area to another or act as a bridge between a possible source ofignition and otherignitable parts.