UL 1238-2022 pdf download

UL 1238-2022 pdf download.Control Equipment for Use with Flammable Liquid and LP-Gas Dispensing Devices.
14.8 The grounded-circuit conductor shall not be grounded at or in conjunction with control equipment.
15 Bonding of Internal Parts
15.1 General
15.1.1 Au exposed dead-metal parts that are capable of becoming energized, and all dead-metal parts within the enclosure that are exposed to contact during operator servicing and that are capable of becoming energized, shall be reliably connected together and to the grounding means
15.1.2 Exempted from the requirements in ji1 are small internal assembly screws, or other small fasteners, such as rivets, and relay and oontactor magnets and armatures.
15.1.3 UnInsulated live parts and wiring shall be maintained away from moving parts, such as relay and contactor magnets and armatures, by damping, routing, or other means that have been determined to be equivalent that ensure permanent separation
15.1.4 When two or more pieces of control equipment are electrically or mechanically connected to one another and one of them is grounded:
a) All exposed dead-metal parts that are capable of becoming energized shall be grounded on all of the devices and
b) Each unit of the system that has a separate supply cord shall have a grounding-type cord.
When the control equipment is interconnected electrically and one of them is grounded, they shall be bonded together, such as by means of a discrete conductor included in an interconnecting cable that has been evaluated for use In this manner.
15.2 ConstructIon and connections
15.2.1 A separate component bonding conductor shall be of copper, a copper alloy, or other material capable of being used as an electrical conductor. A ferrous-metal part In the grounding path shall be suitably protected against corrosion by enameling, galvanizing, plating, or other means that have been determined to be equivaleni A separate bonding conductor or strap:
a) Shall be protected from mechanical damage or shall be located within the confines of the outer enclosure or frame and
b) Shall not be secured by a removable fastener used for any purpose other than bonding unless the bonding conductor would not to be omitted after removal and replacement of the fastener. The ends of the bonding conductor shall be in metal-to-metal contact with the parts to be bonded.
15.2.2 The size of a separate conductor or strap used for bonding of a motor frame or component within the device enclosure shall be the same as that specified in Table 151 or shall be the same as that of the conductor supplying the motor or component, whichever is the smaller.
ELECTRICAL COMPONENTS
16 Switching Devices
16.1 A switch or other control device shall be rated for the application or shall be tested according to the requirements in 36.2.1, 36.22, and 363.1.
16.2 The rating of a switch shall not be less than the rating of the load that the switch controls.
16.3 The current rating of a switch that controls a solenoid, magnet, transformer, electric-discharge-lamp ballast, or other ductive load Is to be at least twice the rated full-load current of the component that is controlled unless the switch is capable of being used In this application.
16.4 A switch that controls a lampholder for an incandescent lamp other than a 1 5-watt or smaller pilot or indicating lamp shall be of a type that is rated for use with tungsten-filament lamps.
16.5 The operation of a control (such as a switch intended to adapt the equipment to different supply voltages) that is accessible to the operator without the use of tools shall not result in a hazard.
16.6 When equipment that is intended for connection to the branch-circuit supply by means of a flexible cord and an attachment-plug cap contains a motor rated at more than 113 horsepower (245 W), a motor- control device that has been evaluated for use in this application shall be provided in the equipment.
16.7 A control switch, lampholder. attachment-plug receptacle, or plug connector provided as a part of control equipment shall be mounted securely and shall be prevented from turning by means other than friction between surfaces.
16.8 A lock washer intended for use in this application, property applied, can be used as a means to prevent turning of a control switch,
17 Capacitors
17.1 The materials and construction of a capacitor, its enclosure, or both shall ensure against emission of flame from the enclosure of the control equipment in the event of failure of the capacitor.