UL 1640-2009 pdf download – Portable Power-Distribution Equipment.
3.1 0 FORMED HINGE – A strip of metal secured to or integral with the enclosure or trim and formed so that it will cooperate with a slot in a door to form a hinge. 3.1 1 INLET ASSEMBLY, INTERLOCKED – An assembly of locking-type, single-pole pin-and-sleeve inlets. The assembly is interlocked as specified under 3.1 8. 3.1 2 INLET ASSEMBLY, SEQUENTIALLY INTERLOCKED – An assembly of locking-type, single-pole pin-and-sleeve inlets. The assembly is sequentially interlocked as specified under 3.1 9. 3.1 3 INTERLOCKED INLET – An inlet having a device, either mechanical or electrical, that is intended to reduce the risk of energizing the contacts before complete engagement with a plug, and that either is intended to reduce risk of the plug being withdrawn while its contacts are energized or de-energizes the line contacts before separation. 3.1 4 PIN-AND-SLEEVE DEVICE – A plug or receptacle utilizing contacts which generally are cylindrical or circular in shape and telescoping and are shrouded by an extension of the enclosure of the mating devices. 3.1 5 PLUG (ATTACHMENT PLUG) – A device intended to receive power when inserted in a receptacle or cable connector, which establishes connection between conductors of the attached flexible cord or cable and the conductors connected to the receptacle or cable connector. 3.1 6 POWER INLET (INLET) – A permanently mounted plug intended to receive power from a cable connector. 3.1 7 RECEPTACLE (OUTLET) – A device that is intended to provide power to an inserted plug, and that is installed as a fixed outlet on equipment.
4 General 4.1 Portable power-distribution equipment shall be constructed and assembled so that it has the strength and rigidity necessary to resist the abuses to which it is likely to be subjected, without total or partial collapse resulting in a risk of fire, electric shock, or injury to persons due to the reduction of spacings, loosening or displacement of parts, or other serious defects. 4.2 Portable power-distribution equipment shall be constructed so as to reduce the risk of intentional contact with enclosed electrical devices and to provide internal devices with protection from specified external conditions. 4.3 Portable power-distribution equipment shall be complete when it is shipped from the factory and shall not have provisions for the mounting of additional equipment. Internal wiring and connections between components shall be completed at the factory. 5 Current-Carrying Parts 5.1 General 5.1 .1 Current-carrying parts shall be of silver, copper, or alloys of these metals or others determined to be the equivalent. Current-carrying parts of other materials that are used in the construction of components shall comply with the appropriate requirements for that component as specified in Appendix A.