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UL 2238-2020 pdf free download
UL 2238-2020 pdf free download.Cable Assemblies and Fittings for Industrial Control and Signal Distribution.
9.5 Grounding parts and dead-metal parts shall be secured in place so that the spacings are not reduced below those specified in 12.1.
9.6 A dead-metal part of a grounding device shall be conductively connected to the grounding-conductor path by means of the device unless the dead-metal part is isolated from current-carrying parts and wiring other than a complete flexible cord. A flexible cord is not complete if two insulated conductors of a parallel- type cord are split apart or where the jacket of a jacketed-type cord is removed from the insulated conductors.
9.7 A dead-metal part of a device for use in a non-grounding application where there is no provision for grounding the dead-metal part shall be insulated from live parts and wiring other than a complete flexible cord so that stray strands, malfunction of wiring terminals, or malfunction of wiring does not energize accessible dead-metal parts. A flexible cord is not complete if two insulated conductors of a parallel-type cord are split apart or where the jacket of a jacketed-type cord is removed from the insulated conductors.
9.8 For a grounding device, the pin that is to be used for grounding shall be longer than the other pins The male cable fitting shall be constructed such that, when it is inserted into its corresponding female cable fitting, contact between the grounding pin and the corresponding grounding terminal contact will be made before contact between the other pins and their corresponding contacts.
10.1 When a device is intended for connection by conductors, the means for connection shall be one of the following:
a) A wire-binding screw.
b) A factory assembled conductor attached by means of soldering, welding, riveting, or crimping, or
c) A terminal wire connector that utilizes positive screw pressure on a bared conductor or spring
action type terminal.
Exception No. 1: A terminal wire connector that utilizes spring action or positive screw pressure for retaining the conductor connection may be employed provided it complies with the performance requirements in the Test Sequence for All Wiring Terminals table, Sequence 1, 2, and 3 in the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors. UL 486E. A factory wiring terminal need not comply with the mechanical sequence, but shall comply with 10.10.
Exception No. 2: Terminal block type devices will be subjected to the requirements in the Table for Test Sequences for All Connectors, Sequence 3, in the Standard for Terminal Blocks, UL 1059. See 10.9.
10.2 A terminal wire connector that utilizes spring action for retaining the grounding terminal shall additionally comply with the Grounding (Bonding) Path Current Test specified in 37.3.UL 2238-2020 pdf free download.
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