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ManualsBrandsAoibox ManualsFans24 in. Black High-Velocity Industrial 3-Speed Ventilation Metal Wall Mount Fan for Warehouse Workshop Factory

Page 16 of 104 Report No.: HK2107050725-SR

UL 507

Clause Requirement + Test Result - Remark Verdict

TRF No. UL507A

14.1.3

Power supply terminal or leads identified for

connection to Class 2 wiring shall comply with

Class 2 circuit requirements, 31.3.

14.2 Knockouts and openings P

14.2.1 A knockout in a sheet-metal enclosure provided for connection of the appliance to

a wiring system installed in accordance with the National Electrical Code,

ANSI/NFPA 70, shall be securely attached and removable without deformation

that would impair the intended performance of the enclosure. The thickness of the

knockout shall be in accordance with the thicknesses specified in Table 7.1.

14.2.2

There shall be a flat surface surrounding a

knockout or opening of sufficient area to permit the

attachment of a length of standard rigid metallic

conduit of a size corresponding to the size of the

knockout or opening. The flat area shall have a

minimum diameter in accordance with Table 14.1.

14.2.3

A knockout or opening shall be surrounded on

both the inside and outside surfaces by a flat

surface to permit proper installation of a locknut.

The flat surface shall extend in all directions

beyond the edge of the knockout for a distance

not less than that specified in Table 14.1.

14.3 Field-wiring compartments P

14.3.1 A field-wiring compartment in which power-supply

connections are made shall be located so that the

connections are able to be readily inspected after

the appliance is installed as intended.

14.3.2 Accessibility of field-installed wiring and inspection

of splices is to be judged by:

a)A trial installation following any instructions

provided by the manufacturer; or

b)Using any wiring system permitted by the

National Electrical Code, ANSI/NFPA 70, if no

instructions are provided.

14.3.3

The minimum usable volume of an outlet box or

terminal compartment in which field-installed wiring

connections to the power supply are to be made

shall be as specified in Table 14.2.

N/A

14.3.5 An electrical component shall not be mounted on a

part, such as the cover of a wiring-terminal

compartment, that is removed to permit field-wiring

connections or inspections.

14.3.6 A field-wiring compartment intended for connection

of a supply raceway and mounted integrally with the

appliance shall be attached so as to be prevented

from turning with respect to the appliance.