UL 1640-2012 pdf download
UL 1640-2012 pdf download.Portable Power-Distribution Equipment.
36 Receptacle Ratings
36.1 The rating of each individual external load in volts and amperes shall be permanently marked on the equipment.
Exception: The voltage is not required for receptacle confrgurations specified in the Standard lbr Wiring Device Configurations. UL 1681. or the Standard for Pin and Sleeve Configurations, UL 1686.
36.2 Equipment using non-locking, singleconductor pin-and-sleeve-type output receptacles shall be permanently marked near the output receptacles “For &anch Circuit Use only.” Minimum letter height is 1/16 inch (1.6 mm)
36.3 Equipment with outputs provided with overcurrent protection suitable for continuous use shall be marked “Suitable for Continuous Use at Full-Rated Output.” The marking shall be near each receptacle with such a rating. The marking may be part of the electrical rating in 29.1 when all outputs are suitable for continuous use.
36.4 Equipment with any receptacles not suitable to be disconnected under load shall be permanently marked near the output receptacles with 13o Not Disconnect Under Load.” This marking shalt be modified to reflect the limitation of the receptacle such as “Do Not Disconnect Under DC Load.” The marking shall be visible with the mating plug in place.
37 Multi-Pole Receptacle Configuration
37.1 The intended connection for each pin of a multi-pole receptacle shall be permanently marked on the equipment.
Exception: Receptacle con figurations specified in the Standard for Safety for Wiring Device Configurations, UL 1681.
38 SIngle-Pole Inlets or Output Receptacles
38.1 Equipment which either uses separate, single-pole devices for input or Output or has inlet or receptacle assemblies that do not comply with the interlocking or sequential interlocking requirements specified in the Glossary, Section 5, shall be permanently marked adjacent to the receptacles with the word “WARNING” and the following or equivalent wording: Risk of Electric Shock. Plug connection should be in the following order:
a) Equipment grounding conductor connectors,
b) Grounded circuit conductor connectors, and
C) Ungrounded conductor connectors,
Disconnection should be in the reverse Order.” The word “WARNING” shall be in minimum 1/8 inch (3.2-mm) high letters, the remaining text in minimum 1/16-inch (1.6-mm) high letters.
39 Supply Cord Without Attachment Plug
39.1 Portable power-destnbution equipment that is not provided with an attachment plug on the flexible power-supply cord or cable shall be marked with the word ‘WARNING’ and the following or equivalent wording: AiSk of Fire. Assemble a grounding-type attachment plug with integral cord grip that is rated for
volts and amperes.’ The two blanks are to be filled in. respectively, with the voltage and current rating of the equipment.
40 Switches or Circuit Breakers
40.1 A manually-operable switching means such as a switch or circuit breaker shall be plainly marked to indicate its on and off positions.
40.2 When the handle 01 a circuit breaker, or a simple extension of such a handle, is capable of being in other than the normal off position when the breaker is tripped, that position shall be marked to indicate that the breaker has tripped. The method of resetting the breaker shall be described on the marking.
Exception: Marking to indicate the tr4,ped position is not required in the case of a separate external operating handle (other than a simple handle extension), when such a separate handle is not part of the breaker. Such a handle is not required to remain in the off position.
40.3 When there are two or more switches or circuit breakers, a switch or circuit breaker that controls all load circuits shall be marked Main.” and no other switching device shall be so marked.
PART 2- BUS BAR CLAMPS
CONSTRUCTION
41 General
41,1 Bus bar clamps, a typical construction as illustrated in Figure 41.1, shall comply with the construction requirements specified in the Standard for Wire Connectors, UL 486A-486B.
