permitted.

(2) In Raceways. Type BLX shall be permitted to be in- stalled in a raceway.

(3) Type BLU Cable. Type BLU cable entering the build- ing from outside shall be permitted to be run in rigid metal conduit or intermediate metal conduit. Such conduits shall be connected by a grounding conductor to an electrode in accordance with 830.100(B).

(4) One- and Two-Family Dwellings. Type BLX or BL cables less than 10 mm (0.375 in.) in diameter shall be permitted to be installed in one- and two-family dwellings.

(5) Type BLX Cable. Type BLX cable entering the building from outside and terminated at a grounding block or a primary protection location shall be permitted to be in- stalled, provided that the length of cable within the building does not exceed 15 m (50 ft).

FPN: This provision limits the length of Type BLX cable to 15 m (50 ft), while 830.90(B) requires that the primary protector, or NIU with integral protection, be located as close as practicable to the point at which the cable enters the building. Therefore, in installations requiring a primary protector, or NIU with integral protection, Type BLX cable may not be permitted to extend 15 m (50 ft) into the building if it is practicable to place the primary protector closer than 15 m (50 ft) to the entrance point.

(D) Cable Substitutions. The substitutions for network- powered broadband cables listed in Table 830.154 shall be permitted. All cables in Table 830.154, other than network-powered broadband cables, shall be coaxial cables.

830.157 Protection Against Physical Damage. Section

300.4 shall apply.

Table 830.154 Cable Substitutions

Cable

Type Permitted Cable Substitutions
BM BMR
BLP CMP, CL3P
BLR CMP, CL3P, CMR, CL3R, BLP, BMR
BL CMP, CMR, CM, CMG, CL3P, CL3R, CL3, BMR, BM, BLP, BLR BLX CMP, CMR, CM, CMG,
CMX, CL3P, CL3R, CL3,
CL3X, BMR, BM, BLP, BRP, BL

830.160 Bends. Bends in network broadband cable shall be made so as not to damage the cable.

VI. Listing Requirements

830.179 Network-Powered Broadband Communications Equipment and Cables. Network-powered broadband communications equipment and cables shall be listed as suitable for the purpose.

Exception No. J: This listing requirement shall not apply to community antenna television and radio distribution system coaxial cables that were installed prior to January 1, 2000, in accordance with Article 820 and are used for low-power network-powered broadband communications circuits.

Exception No. 2: Substitute cables for network-powered broadband communications cables shall be permitted as shown in Table 830.154.

(A) Listing and Marking. Listing and marking of network-powered broadband communications cables shall comply with 830.179(A)(1) or (A)(2).

(1) Types BMU, BM, and BMR Cables. Network- powered broadband communications medium-power underground cable, Type BMU; network-powered broadband communications medium-power cable, Type BM; and network-powered broadband communications medium-power riser cable, Type BMR, shall be factory- assembled cables consisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individual conductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. The insulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for