shall apply for listed hybrid power and communications

cables in closed-loop and programmed power distribution. (FPN): See Section 800-51(i) for hybrid power and communications cable in other applications. 800-4. Equipment. Equipment intended to be electrically connected to a telecommunications network shall be listed for the purpose. (FPN): One way. to determine applicable requirements is to refer to the Standard for Telephone Equipment, UL 1459-1987, or Communication Circuit Accessories, UL 1863-1990. Exception No. 1: For other than wires, cables, grounding conductors, and protectors, this listing requirement shall not apply to premises wiring components, such as plugs, jacks, connectors, terminal blocks, and crossconnect assemblies that were manufactured before October 1, 1990 and all other equipment manufactured before July 1, 1991. 70-792 NATIONAL ELECTRICAL CODE Exception No. 2: This listing requirement shall not apply to test equipment intended for temporary connection to a telecommunications network by qualified persons during the course of installation, maintenance, or repair of telecommunications equipment or systems. 800-5. Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to equipment shall not be denied by an accumulation of wires and cables that prevents removal of panels, including suspended ceiling panels. 800-6. Mechanical Execution of Work. Communication circuits and equipment shall be installed in a neat and workmanlike manner. B. Conductors Outside and Entering Buildings 800-10. Overhead Communications Wires and Cables. Overhead communications wires and cables entering buildings shall comply with (a) and (b) below. (a) On Poles and In-Span. Where communications wires and cables and electric light or power conductors are supported by the same pole or run in parallel in-span, the following conditions shall be met: (1) Relative Location. Where practicable, the communications wires and cables shall be located below the electric light or power conductors. (2) Attachment to Crossarms. Communications wires and cables shall not be attached to a crossarm that carries electric light or power conductors. (3) Climbing Space. The climbing space through communications wires and cables shall comply with the requirements of Section 225-14(d). (4) Clearance. Supply service drops of 0-750 volts running above and parallel to communications service drops shall be permitted to have a minimum separation of 12 inches (30.48 cm) at any point in the span, including the point of and at their attachment to the building, provided the nongrounded conductors are insulated and that a clearance of 40 inches (1.02 m) is maintained between the two services at the pole. (b) Above Roofs. Communications wires and cables shall have a vertical clearance of not less than 8 feet (2.44 m) from all points of roofs above which they pass. Exception No. 1: Auxiliary buildings, such as garages and the like. Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than 18 inches (457 mm) shall be permitted if (1) not more than 4 feet (1.22 mm) of communications service-drop conductors pass above the roof overhang and (2) they are terminated at a through- or above-the-roof raceway or approved support. Exception No. 3: Where the roof has a slope not less than 4 inches (102 mm) in 12 inches (305 mm), a reduction in clearance to not less than 3 feet (914 mm) shall be permitted. ARTICLE 800 - COMMUNICATIONS CIRCUITS 70-793 800-11. Underground Circuits Entering Buildings. Underground communications wires and cables entering buildings shall comply with (a) and (b) below. (a) With Electric Light or Power Conductors. Underground communications wires and cables in a raceway, handhole, or manhole containing electric light or power conductors shall be in a section separated from such conductors by means of brick, concrete, or tile partitions. (b) Underground Block Distribution. Where the entire street circuit is run underground and the circuit within the block is so placed as to be free from likelihood of accidental contact with electric light or power circuits of over 300 volts to ground, the insulation requirements of Sections 800-12(a) and 800-12(c) shall not apply, insulating supports shall not be required for the conductors, and bushings shall not be required where the conductors enter the building. 800-12. Circuits Requiring Primary Protectors. Circuits that require primary protectors as provided in Section 800-30 shall comply with the following: (a) Insulation, Wires, and Cables. Communications wires and cables without a metallic shield, running from the last outdoor support to the primary protector, shall be listed as being suitable for the purpose and having current-carrying capacity as specified in Section 800-30(a)(1)(b) or 800-30(a)(1)(c). (b) On Buildings. Communications wires and cables in accordance with