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UL 864-2020 pdf free download

UL 864-2020 pdf free download.Control Units and Accessories for Fire Alarm Systems.
12.2.3 Where it is possible for damage to field-wiring insulation to be caused by internal components or sharp edges in the wiring compartment, insulating or metal bamers having smooth, rounded edges shall be provided or the following (or wording determined to be the equivalent) marked in the wiring area:
CAUTION — When Making Installation. Route Field Wiring Away From Sharp Projections, Corners And Internal Components,”
12.2.4 The wiring terminals of a product intended for mounting in an outlet or junction type box shall be located or protected so that, upon installation:
a) The wiring in the outlet box is not forced against the product, product’s terminals, or sharp edges so as to damage the conductor insulation or product’s unprotected components; and/or
b) A product with exposed wiring terminals shall be held in its intended mounting location inside the box by mechanical means.
12.3 Power-limited circuits
12.3.1 When the design of the product is such that the product either requires or permits power-limited circuit conductors to occupy the same endosure as electric light, power, Class 1, or non-power-limited fire- protective signaling-circuit conductors, or medium-power network-powered broadband communications- circuit conductors, both of the conditions in (a) and (b) shall be met:
a) The enclosure shall provide one or more cable openings into the enclosure. When a single opening is provided, a continuous and firmly fixed nonconductor, such as flexible tubing, shall be provided. This is required so that the power-limited conductors are segregated from electric light, power, Class 1 conductors, non-power-limited fire-protective signaling conductors, and medium- power network-powered broadband communications-circuit conductors. The installation document of the product shall completely detail cable entry routing of all conductors into the product.
b) The product shall be constructed so that, with all field-installed wiring connected to the product, either:
1) A minimum 114 in (6.4 mm) is provided between all power-limited conductors and all electric light, power. Class 1 conductors, non-power-limited fire-protective signaling conductors, or medium-power network-powered broadband communications-circuit conductors, or
2) For circuit conductors operating at 150 V or less to ground where the power-limited conductors are installed using Types FPL, FPLR, FPLP, or equivalent cables, a minimum 1/4 in (6.4 mm) separation is provided between these power-limited cable conductors extending beyond the jacket and all electric light, power, Class 1 conductors, non-power- limited fire-protective signaling conductors, and medium-power network-powered broadband communications-circuit conductors.UL 864-2020 pdf free download.

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