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Chapter 8 Communications Systems | 800.110(C)(1) | Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft) and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft). [800.110(C)(1)](https://2023.antflix.net#800.110(C)(1)) | https://2023.antflix.net#800.110(C)(1) |
Chapter 8 Communications Systems | 800.110(C)(2) | Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports. [800.110(C)(2)](https://2023.antflix.net#800.110(C)(2)) | https://2023.antflix.net#800.110(C)(2) |
Chapter 8 Communications Systems | 800.110(D) | Wires and cables and communications raceways shall be permitted to be installed in metal or listed nonmetallic cable tray systems. Ladder cable trays shall be permitted to support cable routing assemblies. [800.110(D)](https://2023.antflix.net#800.110(D)) | https://2023.antflix.net#800.110(D) |
Chapter 8 Communications Systems | 800.113 | Installation of wires, cables, cable routing assemblies, and communications raceways shall comply with 800.113(A) through (L). Installation of cable routing assemblies and communications raceways shall comply also with 800.110. Types of cables used by this section are identified in Table 800.113.Table 800.113 Cables Used for Communications Circuits Listed Cable Types Plenum cables CMP, CATVP, BLP, OFNP, OFCP Riser cables CMR, CATVR, BMR, BLR, OFNR, OFCR General-purpose cables CMG, CM, CATV, BM, BL, OFNG, OFN, OFCG, OFC Limited-use cables CMX, CATVX, BLX Undercarpet CMUC Underground BMU, BLU [800.113](https://2023.antflix.net#800.113) | https://2023.antflix.net#800.113 |
Chapter 8 Communications Systems | 800.113(A) | Cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways installed in buildings shall be listed and installed in accordance with the limitations of the listing. Exception: Cables installed in compliance with 800.48 shall not be required to be listed. [800.113(A)](https://2023.antflix.net#800.113(A)) | https://2023.antflix.net#800.113(A) |
Chapter 8 Communications Systems | 800.113(B) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in ducts specifically fabricated for environmental air shall be in accordance with 800.113(B)(1) and (B)(2). [800.113(B)](https://2023.antflix.net#800.113(B)) | https://2023.antflix.net#800.113(B) |
Chapter 8 Communications Systems | 800.113(B)(1) | The following cables shall be permitted in ducts specifically fabricated for environmental air as described in 300.22(B) if they are directly associated with the air distribution system: Plenum cables up to 1.22 m (4 ft) in lengthPlenum, rise, general-purpose, and limited-use cables installed in raceways that are installed in compliance with 300.22(B) [800.113(B)(1)](https://2023.antflix.net#800.113(B)(1)) | https://2023.antflix.net#800.113(B)(1) |
Chapter 8 Communications Systems | 800.113(B)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be permitted in ducts specifically fabricated for environmental air as described in 300.22(B): Plenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesRiser, general-purpose, and limited-use cablesType CMUC cables and wiresTypes BMU and BLU cablesCommunications wiresHybrid power and communications cablesInformational Note: See NFPA 90A-2021, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on fire protection of wiring installed in fabricated ducts. [800.113(B)(2)](https://2023.antflix.net#800.113(B)(2)) | https://2023.antflix.net#800.113(B)(2) |
Chapter 8 Communications Systems | 800.113(C) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in other spaces used for environmental air (plenums) shall be in accordance with 800.113(C)(1) and (C)(2). [800.113(C)](https://2023.antflix.net#800.113(C)) | https://2023.antflix.net#800.113(C) |
Chapter 8 Communications Systems | 800.113(C)(1) | The following cables, wires, cable routing assemblies, and communications raceways shall be permitted in other spaces used for environmental air as described in 300.22(C): Plenum cablesPlenum communications racewaysPlenum cable routing assembliesPlenum cables installed in plenum communications racewaysPlenum cables installed in plenum cable routing assembliesPlenum cables and plenum communications raceways supported by open metal cable tray systemsPlenum, riser, general-purpose, and limited-use cables, and communications wires installed in raceways that are installed in compliance with 300.22(C)Plenum, rise, general-purpose, limited-use cables and plenum, riser, and general-purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C)Plenum, riser, general-purpose, and limited-use cables installed in plenum, riser, and general-purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C) [800.113(C)(1)](https://2023.antflix.net#800.113(C)(1)) | https://2023.antflix.net#800.113(C)(1) |
Chapter 8 Communications Systems | 800.113(C)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be permitted in other spaces used for environmental air as described in 300.22(C): Riser, general-purpose, and limited-use cablesRiser and general-purpose communications racewaysRiser and general-purpose cable routing assembliesType CMUC cables and wiresTypes BMR, BM, BMU, and BLU cablesCommunications wiresHybrid power and communications cablesInformational Note: See NFPA 90A-2021, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on fire protection of wiring installed in other spaces used for environmental air. [800.113(C)(2)](https://2023.antflix.net#800.113(C)(2)) | https://2023.antflix.net#800.113(C)(2) |
Chapter 8 Communications Systems | 800.113(D) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in risers shall be in accordance with 800.113(D)(1) and (D)(2). [800.113(D)](https://2023.antflix.net#800.113(D)) | https://2023.antflix.net#800.113(D) |
Chapter 8 Communications Systems | 800.113(D)(1) | The following cables, cable routing assemblies, and communications raceways shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft: Plenum and riser cablesPlenum and riser communications racewaysPlenum and riser cable routing assembliesPlenum and riser cables installed in the following:Plenum communications racewaysRiser communications racewaysPlenum cable routing assembliesRiser cable routing assemblies [800.113(D)(1)](https://2023.antflix.net#800.113(D)(1)) | https://2023.antflix.net#800.113(D)(1) |
Chapter 8 Communications Systems | 800.113(D)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be permitted in risers: General-purpose and limited-use cablesGeneral-purpose communications racewaysGeneral-purpose cable routing assembliesType CMUC cables and wiresTypes BMR, BM, BMU, and BLU cablesCommunications wiresHybrid power and communications cablesInformational Note: See 800.26 for firestop requirements for floor penetrations. [800.113(D)(2)](https://2023.antflix.net#800.113(D)(2)) | https://2023.antflix.net#800.113(D)(2) |
Chapter 8 Communications Systems | 800.113(E) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in metal raceways in a riser having firestops at each floor shall be in accordance with 800.113(E)(1) and (E)(2). [800.113(E)](https://2023.antflix.net#800.113(E)) | https://2023.antflix.net#800.113(E) |
Chapter 8 Communications Systems | 800.113(E)(1) | The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at each floor: Plenum, riser, general-purpose, and limited-use cablesPlenum, riser, and general-purpose communications raceways (innerduct)Plenum, riser, general-purpose, and limited-use cables installed in the following:Plenum communications raceways (innerduct)Riser communications raceways (innerduct)General-purpose communications raceways (innerduct) [800.113(E)(1)](https://2023.antflix.net#800.113(E)(1)) | https://2023.antflix.net#800.113(E)(1) |
Chapter 8 Communications Systems | 800.113(E)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be permitted in metal raceways in a riser having firestops at each floor: Plenum, riser, and general-purpose cable routing assembliesType CMUC cables and wiresTypes BMR. BM, BMU, and BLU cablesCommunications wiresHybrid power and communications cablesInformational Note: See 800.26 for firestop requirements for floor penetrations. [800.113(E)(2)](https://2023.antflix.net#800.113(E)(2)) | https://2023.antflix.net#800.113(E)(2) |
Chapter 8 Communications Systems | 800.113(F) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in fireproof riser shafts having firestops at each floor shall be in accordance with 800.113(F)(1) and (F)(2). [800.113(F)](https://2023.antflix.net#800.113(F)) | https://2023.antflix.net#800.113(F) |
Chapter 8 Communications Systems | 800.113(F)(1) | The following cables, cable routing assemblies, and communications raceways shall be permitted to be installed in fireproof riser shafts having firestops at each floor: Plenum, riser, general-purpose, and limited-use cablesPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesPlenum, riser, general-purpose, and limited-use cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assemblies [800.113(F)(1)](https://2023.antflix.net#800.113(F)(1)) | https://2023.antflix.net#800.113(F)(1) |
Chapter 8 Communications Systems | 800.113(F)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be permitted in metal raceways in fireproof riser shafts having firestops at each floor: Type CMUC cables and wiresType BMU and BLU cablesCommunications wiresHybrid power and communications cablesInformational Note: See 800.26 for firestop requirements for floor penetrations. [800.113(F)(2)](https://2023.antflix.net#800.113(F)(2)) | https://2023.antflix.net#800.113(F)(2) |
Chapter 8 Communications Systems | 800.113(G) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in risers in one- and two-family dwellings shafts shall be in accordance with 800.113(G)(1) and (G)(2). [800.113(G)](https://2023.antflix.net#800.113(G)) | https://2023.antflix.net#800.113(G) |
Chapter 8 Communications Systems | 800.113(G)(1) | The following cables, cable routing assemblies, and communications raceways shall be permitted in one- and two-family dwellings: Plenum, riser, and general-purpose cablesLimited-use cables less than 6 mm (0.25 in.) in diameterPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesPlenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assemblies [800.113(G)(1)](https://2023.antflix.net#800.113(G)(1)) | https://2023.antflix.net#800.113(G)(1) |
Chapter 8 Communications Systems | 800.113(G)(2) | The following cables and wires shall not be permitted in risers in one- and two-family dwellings: Type CMUC cables and wiresType BMU and BLU cablesCommunications wiresHybrid power and communications cables [800.113(G)(2)](https://2023.antflix.net#800.113(G)(2)) | https://2023.antflix.net#800.113(G)(2) |
Chapter 8 Communications Systems | 800.113(H) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways supported by cable trays shall be in accordance with 800.113(H)(1) and (H)(2). [800.113(H)](https://2023.antflix.net#800.113(H)) | https://2023.antflix.net#800.113(H) |
Chapter 8 Communications Systems | 800.113(H)(1) | The following wires, cables, and communications raceways shall be permitted to be supported by cable trays: Plenum, riser, and general-purpose cablesPlenum, riser, and general-purpose communications racewaysCommunications wires, plenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications raceways.General-purpose communications raceways [800.113(H)(1)](https://2023.antflix.net#800.113(H)(1)) | https://2023.antflix.net#800.113(H)(1) |
Chapter 8 Communications Systems | 800.113(H)(2) | The following cables and wires shall not be supported by cable trays: Limited-use cablesType CMUC cables and wiresType BMU and BLU cablesCommunications wiresHybrid power and communications cables [800.113(H)(2)](https://2023.antflix.net#800.113(H)(2)) | https://2023.antflix.net#800.113(H)(2) |
Chapter 8 Communications Systems | 800.113(I) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in distributing frames and cross-connect arrays shall be in accordance with 800.113(I)(1) and (I)(2). [800.113(I)](https://2023.antflix.net#800.113(I)) | https://2023.antflix.net#800.113(I) |
Chapter 8 Communications Systems | 800.113(I)(1) | The following wires, cables, cable routing assemblies, and communications raceways shall be permitted to be installed in distributing frames and cross-connect arrays: Plenum, riser, and general-purpose cables and communications wiresPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesCommunications wires, plenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assemblies [800.113(I)(1)](https://2023.antflix.net#800.113(I)(1)) | https://2023.antflix.net#800.113(I)(1) |
Chapter 8 Communications Systems | 800.113(I)(2) | The following cables and wires shall not be installed in distributing frames and cross-connect arrays: Types BMR, BM, BMU, and BLU cablesLimited-use cablesType CMUC cables and wiresHybrid power and communications cables [800.113(I)(2)](https://2023.antflix.net#800.113(I)(2)) | https://2023.antflix.net#800.113(I)(2) |
Chapter 8 Communications Systems | 800.113(J) | Installations of cables used for communications circuits, cable communications wires, routing assemblies, and communications raceways in building locations other than those covered in 800.113(B) through (I) shall be in accordance with 800.113 (J)(1) and (J)(2). [800.113(J)](https://2023.antflix.net#800.113(J)) | https://2023.antflix.net#800.113(J) |
Chapter 8 Communications Systems | 800.113(J)(1) | The following wires, cables, cable routing assemblies, and communications raceways shall be permitted to be installed in building locations other than the locations covered in 800.113(B) through (I): Plenum, riser, and general-purpose cablesLimited-use cables with a maximum of 3 m (10 ft) of exposed length in nonconcealed spacesPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesCommunications wires, plenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum, riser, and general-purpose cables installed in the following:Plenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assembliesCommunications wires and plenum, riser, general-purpose, and limited-use cables installed in raceways recognized in Chapter 3Type CMUC undercarpet communications wires and cables installed under carpet, modular flooring, and planks [800.113(J)(1)](https://2023.antflix.net#800.113(J)(1)) | https://2023.antflix.net#800.113(J)(1) |
Chapter 8 Communications Systems | 800.113(J)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be installed in building locations other than the locations covered in 800.113(B) through (I): Types BMU and BLU cablesCommunications wiresHybrid power and communications cables [800.113(J)(2)](https://2023.antflix.net#800.113(J)(2)) | https://2023.antflix.net#800.113(J)(2) |
Chapter 8 Communications Systems | 800.113(K) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in multifamily dwellings shall be in accordance with 800.113(K)(1) and (K)(2). [800.113(K)](https://2023.antflix.net#800.113(K)) | https://2023.antflix.net#800.113(K) |
Chapter 8 Communications Systems | 800.113(K)(1) | The following cables, cable routing assemblies, and communications raceways shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G): Plenum, riser, and general-purpose cablesLimited-use cables less than 6 mm (0.25 in.) in diameter in nonconcealed spacesPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesCommunications wires and plenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum, riser, and general-purpose cables installed in the following:Plenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assembliesCommunications wires and plenum, riser, general-purpose, and limited-use cables installed in raceways recognized in Chapter 3Type CMUC under-carpet communications wires and cables installed under carpet, modular flooring, and planks [800.113(K)(1)](https://2023.antflix.net#800.113(K)(1)) | https://2023.antflix.net#800.113(K)(1) |
Chapter 8 Communications Systems | 800.113(K)(2) | The following cables, cable routing assemblies, and communications raceways shall not be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G): Types BMU and BLU cablesCommunications wiresHybrid power and communications cables [800.113(K)(2)](https://2023.antflix.net#800.113(K)(2)) | https://2023.antflix.net#800.113(K)(2) |
Chapter 8 Communications Systems | 800.113(L) | Installations of cables used for communications circuits, communications wires, cable routing assemblies, and communications raceways in one- and two-family dwellings in locations other than those covered in 800.113(B) through (F) shall be in accordance with 800.113(L)(1) and (L)(2). [800.113(L)](https://2023.antflix.net#800.113(L)) | https://2023.antflix.net#800.113(L) |
Chapter 8 Communications Systems | 800.113(L)(1) | The following wires, cables, cable routing assemblies, and communications raceways shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 800.113(B) through (F): Plenum, riser, and general-purpose cablesLimited-use cables less than 6 mm (0.25 in.) in diameterPlenum, riser, and general-purpose communications racewaysPlenum, riser, and general-purpose cable routing assembliesCommunications wires, plenum, riser, and general-purpose cables installed in the following:Plenum communications racewaysRiser communications racewaysGeneral-purpose communications racewaysPlenum, riser, and general-purpose cables installed in the following:Plenum cable routing assembliesRiser cable routing assembliesGeneral-purpose cable routing assembliesCommunications wires and plenum, riser, general-purpose, and limited-use cables installed in raceways recognized in Chapter 3Type CMUC under-carpet communications wires and cables installed under carpet, modular flooring, and planksHybrid power and communications cable listed in accordance with 800.179 [800.113(L)(1)](https://2023.antflix.net#800.113(L)(1)) | https://2023.antflix.net#800.113(L)(1) |
Chapter 8 Communications Systems | 800.113(L)(2) | The following cables, wires, cable routing assemblies, and communications raceways shall not be installed in one- and two-family dwellings in locations other than those covered in 800.113(B) through (F): Types BMU and BLU cablesCommunications wires [800.113(L)(2)](https://2023.antflix.net#800.113(L)(2)) | https://2023.antflix.net#800.113(L)(2) |
Chapter 8 Communications Systems | 800.133 | Installation of communications wires and cables, from the protector to the equipment, or where no protector is required, communications wires and cables attached to the outside or inside of the building, shall comply with 800.133(A) and 800.133(B). Installation of CATV-type coaxial cables, beyond the point of grounding as defined in 820.93, shall comply with 800.133(A) through (C). [800.133](https://2023.antflix.net#800.133) | https://2023.antflix.net#800.133 |
Chapter 8 Communications Systems | 800.133(A)(1) | Communications cables and CATV-type coaxial cables shall be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly together and with jacketed cables of any of the following: Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with 645.5(E)(2) or Parts I and II of Article 725Power-limited fire alarm systems in compliance with Parts I and III of Article 760Nonconductive and conductive optical fiber cables in compliance with Parts I and V of Article 770Communications circuits in compliance with Parts I and IV of Articles 800 and 805Community antenna television and radio distribution systems in compliance with Parts I and V of Articles 800 and 820Low-power network-powered broadband communications circuits in compliance with Parts I and V of Articles 800 and 830 [800.133(A)(1)](https://2023.antflix.net#800.133(A)(1)) | https://2023.antflix.net#800.133(A)(1) |
Chapter 8 Communications Systems | 800.133(A)(2) | Class 1 circuits shall not be run in the same cable with communications circuits. Class 2 and Class 3 circuit conductors shall be permitted in the same listed communications cable with communications circuits. [800.133(A)(2)](https://2023.antflix.net#800.133(A)(2)) | https://2023.antflix.net#800.133(A)(2) |
Chapter 8 Communications Systems | 800.133(A)(3) | Communications wires and cables and CATV-type coaxial cables shall not be placed in any raceway, compartment, outlet box, junction box, or similar fitting with conductors of electric light, power, Class 1, non-power-limited fire alarm, or medium-power network-powered broadband communications circuits.
Exception No. 1: Communications wires and cables and CATV-type coaxial cables shall be permitted to be placed in any raceway, compartment, outlet box, junction box, or other enclosures with conductors of electric light, power, Class 1, non-power-limited fire alarm., or medium-power network-powered broadband communications circuits where all of the conductors of electric light, power, Class 1, non-power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the communications wires and cables and CATV-type coaxial cables by a permanent barrier or listed divider.
Exception No. 2: Communications wires and cables and CATV-type coaxial cables shall be permitted to be placed in outlet boxes, junction boxes, or similar fittings or compartments with power conductors where such conductors are introduced solely for power supply to the communications and coaxial cable system distribution equipment. The power circuit conductors shall be routed within the enclosure to maintain a minimum 6 mm (1/4 in.) separation from the communications wires and cables and the CATV-type coaxial cables.
Exception No. 3: Separation of circuits shall not be required in elevator traveling cables constructed in accordance with by 620.36. [800.133(A)(3)](https://2023.antflix.net#800.133(A)(3)) | https://2023.antflix.net#800.133(A)(3) |
Chapter 8 Communications Systems | 800.133(B) | Communications wires and cables and CATV-type coaxial cables shall be separated at least 50 mm (2 in.) from conductors of any electric light, power, Class 1, non—power-limited fire alarm, or medium-power network-powered broadband communications circuits.
Exception No. 1: Separation shall not be required where either (1) all of the conductors of electric light, power, Class 1, non-power-limited fire alarm, and medium-power network-powered broadband communications circuits are in a raceway or in metal-sheathed, metal-clad, nonmetallic-sheathed, Type AC or Type UF cables, or (2) all of the communications wires and cables and all of the CATV-type coaxial cables are encased in raceway.
Exception No. 2: Separation shall not be required where the communications wires and cables and CATV-type coaxial cables are permanently separated from the conductors of electric light, power, Class 1, non-power-limited fire alarm, and medium-power network-powered broadband communications circuits by a continuous and firmly fixed nonconductor, such as porcelain lubes or flexible tubing, in addition to the insulation on the wire. [800.133(B)](https://2023.antflix.net#800.133(B)) | https://2023.antflix.net#800.133(B) |
Chapter 8 Communications Systems | 800.133(C) | Raceways shall be used for their intended purpose. Communications wires and cables and CATV-type coaxial cables shall not be strapped, taped, or attached by any means to the exterior of any raceway as a means of support. Exception: Overhead (aerial) spans of communications drop wires, communications cables, and CATV-type coaxial cables shall be permitted to be attached to the exterior of a raceway-type mast intended for the attachment and support of such wires and cables. [800.133(C)](https://2023.antflix.net#800.133(C)) | https://2023.antflix.net#800.133(C) |
Chapter 8 Communications Systems | 800.154 | Permitted and nonpermitted applications of listed communications wires, cables, coaxial cables, network-powered broadband communications system cables and raceways, and listed cable routing assemblies, shall be in accordance with one of the following: Listed communications wires and cables as indicated in Table 800.154(a)Listed communications raceways as indicated in Table 800.154(b)Listed cable routing assemblies as indicated in Table 800.154(c)The permitted applications shall be subject to the installation requirements of 800.110 and 800.113.Table 800.154(a) Applications of Listed Communications Wires, Cables, and Network-Powered Broadband Communications System Cables in Buildings Applications Wire and Cable Type Plenum Riser BMR General-Purpose BM Limited-Use Undercarpet BMU, BLU Hybrid Power and Communications Cables Communications Wires In ducts specifically fabricated for environmental air as described in 300.22(B) In fabricated ducts Y N N N N N N N N N In metal raceway that complies with 300.22(B) Y Y Y Y Y Y N N N Y In other spaces used for environmental air (plenums) as described in 300.22(C) In other spaces used for environmental air Y N N N N N N N N N In metal raceway that complies with 300.22(C) Y Y Y Y Y Y N N N Y In plenum communications raceways Y N N N N N N N N N In plenum cable routing assemblies Y N N N N N N N N N Supported by open metal cable trays Y N N N N N N N N N Supported by solid bottom metal cable trays with solid metal covers Y Y Y Y Y Y N N N N In risers In vertical runs Y Y Y N N N N N N N In metal raceways Y Y Y Y Y Y N N N N In fireproof shafts Y Y Y Y Y Y N N N N In plenum communications raceways Y Y N N N N N N N N In plenum cable routing assemblies Y Y N N N N N N N N In riser communications raceways Y Y N N N N N N N N In riser cable routing assemblies Y Y N N N N N N N N In one- and two- family dwellings Y Y Y Y Y Y N N Y N Within buildings in other than air-handling spaces and risers General Y Y Y Y Y Y N N N N In one- and two- family dwellings Y Y Y Y Y Y Y N Y N In multifamily dwellings Y Y Y Y Y Y Y N N N In nonconcealed spaces Y Y Y Y Y Y Y N N N Supported by cable trays Y Y Y Y Y N N N N N Under carpet, modular flooring, and planks N N N N N N Y N N N In distributing frames and cross-connect arrays Y Y N Y N N N N N Y In rigid metal conduit (RMC) and intermediate metal conduit (IMC) Y Y Y Y Y Y Y Y Y Y In any raceway recognized in Chapter 3 Y Y Y Y Y Y N N N Y In plenum communications raceways Y Y N Y N N N N N Y In plenum cable routing assemblies Y Y N Y N N N N N Y In riser communications raceways Y Y N Y N N N N N Y In riser cable routing assemblies Y Y N Y N N N N N Y In general-purpose communications raceways Y Y N Y N N N N N Y In general-purpose cable routing assemblies Y Y N Y N N N N N Y Note: An "N" in the table indicates that the cable type shall not be installed in the application. A "Y" indicates that the cable type shall be permitted to be installed in the application subject to the limitations described in 800.113. The Riser column includes all riser cables except BMR, and the General-Purpose column includes all general-purpose cables except BM.Table 800.154(b) Applications of Listed Communications Raceways in Buildings Applications Listed Communications Raceway Type Plenum Riser General-Purpose In ducts specifically fabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway that complies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in 300.22(C) In other spaces used for environmental air Y N N In metal raceway that complies with 300.22(C) Y Y Y In plenum cable routing assemblies N N N Supported by open metal cable trays Y N N Supported by solid bottom metal cable trays with solid metal covers Y Y Y In risers In vertical runs Y Y N In metal raceways Y Y Y In fireproof shafts Y Y Y In plenum cable routing assemblies N N N In riser cable routing assemblies N N N In one- and two-family dwellings Y Y Y Within buildings in other than air-handling spaces and risers General Y Y Y In one- and two-family dwellings Y Y Y In multifamily dwellings Y Y Y In nonconcealed spaces Y Y Y Supported by cable trays Y Y Y Under carpet, modular flooring, and planks N N N In distributing frames and cross-connect arrays Y Y Y In any raceway recognized in Chapter 3 Y Y Y In plenum cable routing assemblies N N N In riser cable routing assemblies N N N In general-purpose cable routing assemblies N N N Note: An "N" in the table indicates that the communications raceway type shall not be installed in the application. A "Y" indicates that the communications raceway type shall be permitted to be installed in the application, subject to the limitations described in 800.110 and 800.113.Table 800.154(c) Applications of Listed Cable Routing Assemblies in Buildings Applications Listed Cable Routing Assembly Type Plenum Riser General-Purpose In ducts specifically fabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway that complies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in 300.22(C) In other spaces used for environmental air Y N N In metal raceway that complies with 300.22(C) N N N In plenum communications raceways N N N Supported by open metal cable trays Y N N Supported by solid bottom metal cable trays with solid metal covers N N N In risers In vertical runs Y Y N In metal raceways N N N In fireproof shafts Y Y Y In plenum communications raceways N N N In riser communications raceways N N N In one- and two-family dwellings Y Y Y Within buildings in other than air-handling spaces and risers General Y Y Y In one- and two-family dwellings Y Y Y In multifamily dwellings Y Y Y In nonconcealed spaces Y Y Y Supported by cable trays Y Y Y Under carpet, modular flooring, and planks N N N In distributing frames and cross-connect arrays Y Y Y In any raceway recognized in Chapter 3 N N N In plenum communications raceways N N N In riser communications raceways N N N In general-purpose communications raceways N N N Note: An "N" in the table indicates that the cable routing assembly type shall not be installed in the application. A "Y" indicates that the cable routing assembly type shall be permitted to be installed in the application subject to the limitations described in 800.113.
Informational Note No. 1: Part IV of Article 800 covers installation methods within buildings. This table covers the applications of listed communications wires, cables, and raceways in buildings. Informational Note No. 2: For information on the restrictions to the installation of communications cables in fabricated ducts, see 800.113(B). [800.154](https://2023.antflix.net#800.154) | https://2023.antflix.net#800.154 |
Chapter 8 Communications Systems | 800.170 | Cable lies intended for use in other space used for environmental air (plenums) shall be listed as having low smoke and heat release properties. Informational Note: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, and ANSI/ UL 2043-2013, Standard for Safety Tire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, for information on listing discrete products as having low smoke and heat release properties. [800.170](https://2023.antflix.net#800.170) | https://2023.antflix.net#800.170 |
Chapter 8 Communications Systems | 800.171 | Communications equipment shall be listed as being suitable for electrical connection to a communications network. Informational Note No. 1: See ANSI/UL 60950-1-2014, Standard for Safety of Information Technology Equipment, ANSI/ UL 1863-2012, Standard for Safety Communications Circuit Accessories, or ANSI/UL 62368-1-2014 or ANSI/UL 62368-1-2018, Audio/Video, Information and Communication Technology Equipment - Part 1: Safety Requirements. Informational Note No. 2: See ANSI/ATIS 0600337-2016, Requirements for Maximum Voltage, Current, and Power Levels Used in Communications Circuits, for additional information regarding voltages, currents, and power allowed on communications circuits. [800.171](https://2023.antflix.net#800.171) | https://2023.antflix.net#800.171 |
Chapter 8 Communications Systems | 800.179 | Communications wires and cables, community antenna television cables, and network-powered broadband communications cables shall be listed in accordance with 800.179(A) through (L) and shall have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F). Conductors in communications cables, other than in a coaxial cable, shall be copper. Cables shall be permitted to contain optical fibers. Cables containing optical fibers shall be marked with the suffix "-OF." Communications wires and cables and network-powered communications cables shall have a voltage rating of not less than 300 volts; the insulation for the individual conductors, other than the outer conductor of a coaxial cable, shall be rated for 300 volts minimum. The cable voltage rating shall not be marked on the cable or on the under-carpet communications wire. Exception: Voltage markings shall be permitted where the cable has multiple listings and voltage marking is required for one or more of the listings. Informational Note No. 1: Voltage markings on cables could be misinterpreted to suggest that the cables may be suitable for Class 1, electric light, and power applications. Informational Note No. 2: See UL 444-2017, Standard for Communications Cables, for information on communications cables. Informational Note No. 3: See UL1655-2009, Standard for Community-Antenna Television Cables, for information on community-antenna television cables. [800.179](https://2023.antflix.net#800.179) | https://2023.antflix.net#800.179 |
Chapter 8 Communications Systems | 800.179(A) | Type CMP communications plenum cables, Type CATVP community antenna television plenum coaxial cables, and Type BLP network-powered broadband communication low-power plenum cables shall be listed as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low-smoke-producing characteristics. Informational Note: See NFPA 262-2019, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, for one method of defining a cable that is low-smoke-producing cable and fire-resistant cable so that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft). [800.179(A)](https://2023.antflix.net#800.179(A)) | https://2023.antflix.net#800.179(A) |
Chapter 8 Communications Systems | 800.179(B) | Type CMR communications riser cables, Type CATVR community antenna television riser coaxial cables, Type BMR network-powered broadband communications medium-power riser cables, and Type BLR network-powered broadband communications low-power riser cables shall be listed as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: See ANSI/UL 1666-2017, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts, for one method of defining fire-resistant characteristics of the cable capable of preventing the carrying of fire from floor to floor. [800.179(B)](https://2023.antflix.net#800.179(B)) | https://2023.antflix.net#800.179(B) |
Chapter 8 Communications Systems | 800.179(C)(1) | Type CMG communications general-purpose cables shall be listed as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire. Informational Note: See CSA Vertical Flame Test - Cables in Cable Trays as described in CSA C22.2 No. 0.3-09 (R2019), Test Methods for Electrical Wires and Cables, for one method of defining resistance to the spread of fire where the damage (char length) of the cable does not exceed 1.5 m (4 ft 11 in.) or FT4 Flame Test in ANSI/UL 1685-2015, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test methods are not applicable. [800.179(C)(1)](https://2023.antflix.net#800.179(C)(1)) | https://2023.antflix.net#800.179(C)(1) |
Chapter 8 Communications Systems | 800.179(C)(2) | Type CM communications general-purpose cables, Type CATV community antenna television coaxial general-purpose cables, Type BM network-powered broadband communications medium-power general-purpose cables, and Type BL network-powered broadband communications low-power general-purpose cables shall be listed as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire. Informational Note: See UL Flame Exposure in ANSI/ UL 1685-2015, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables, for one method of defining resistance to the spread of fire where the damage (char length) of the cable does not to exceed 244 cm (8 ft 0 in.). The smoke measurements in the test method are not applicable. [800.179(C)(2)](https://2023.antflix.net#800.179(C)(2)) | https://2023.antflix.net#800.179(C)(2) |
Chapter 8 Communications Systems | 800.179(D) | Type CMX limited-use communications cables, Type CATVX limited-use community antenna television coaxial cables, and Type BLX limited-use network-powered broadband low-power cables shall be listed as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant to flame spread. Informational Note: See ANSI/UL 2556, Standard for Wire and Cable Test Method, for one method of determining that cable is resistant to flame spread is by testing the cable to the FV-2/VW-1 flame test. [800.179(D)](https://2023.antflix.net#800.179(D)) | https://2023.antflix.net#800.179(D) |
Chapter 8 Communications Systems | 800.179(E) | Cables that are used for survivability of critical circuits under fire conditions shall be listed and meet either 800.179(E)(1), (E)(2), or (E)(3). [800.179(E)](https://2023.antflix.net#800.179(E)) | https://2023.antflix.net#800.179(E) |
Chapter 8 Communications Systems | 800.179(E)(1) | Cables specified in 800.179(A) through (C) and used for survivability of critical circuits shall be marked with the additional classification using the suffix "CI." In order to maintain its listed lire rating, CI cable shall only be installed in free air in accordance with 800.24. CI cables shall only be permitted to be installed in a raceway where specifically listed and marked as part of a fire-resistive cable system as covered in 800.179(E)(2). Informational Note: See UL 2196, Standard for Fire Test for Circuit Integrity of Fire-Resistant Power, Instrumentation, Control, and Data Cables, for one method of defining CI cable by establishing a minimum 2-hour fire resistance rating for the cable as specified in UL 444, Standard for Safety Communications Cables. [800.179(E)(1)](https://2023.antflix.net#800.179(E)(1)) | https://2023.antflix.net#800.179(E)(1) |
Chapter 8 Communications Systems | 800.179(E)(2) | Cables specified in 800.179(A) through (C) and 800.179(E)(1) that are part of an electrical circuit protective system shall be fire-resistive cable identified with the protective system number on the product, or on the smallest unit container in which the product is packaged, and shall be installed in accordance with the listing of the protective system. Informational Note No. 1: See UL 2196, Fire Test for Circuit Integrity of Fire-Resistive Power, Instrumentation, Control and Data Cables, for one method of defining an electrical circuit protective system rating for the system. UL Guide Information for Electrical Circuit Integrity Systems (FHIT) contains information to identify the system and its installation limitations to maintain a minimum fire-resistive rating. Informational Note No. 2: The listing organization provides information for electrical circuit protective systems (FHIT), including installation requirements for maintaining the fire rating. [800.179(E)(2)](https://2023.antflix.net#800.179(E)(2)) | https://2023.antflix.net#800.179(E)(2) |
Chapter 8 Communications Systems | 800.179(E)(3) | Protectants for cables specified in 800.179(A) through (E), which are part of an electrical circuit protective system, shall be identified with the protective system identifier and hourly rating marked on the protectant or the smallest unit container and installed in accordance with the listing of the system. Informational Note: See UL 1724, Fire Tests for Electrical Circuit Protective Systems, for one method of defining an electrical circuit protective system. UL Guide Information for Electrical Circuit Integrity Systems (FHIT) contains information to identify the system and its installation limitations to maintain the fire-resistive rating. [800.179(E)(3)](https://2023.antflix.net#800.179(E)(3)) | https://2023.antflix.net#800.179(E)(3) |
Chapter 8 Communications Systems | 800.179(F) | Types CMP-LP, CMR-LP, CMG-LP, and CM-LP communications limited power cables shall be listed as suitable for carrying power and data up to a specified current limit for each conductor without exceeding the temperature rating of the cable where the cable is installed in cable bundles in free air or installed within a raceway, cable tray, or cable routing assembly. The cables shall be marked with the suffix "-LP(XXA)," where XX designates the current limit in amperes per conductor. Informational Note: An example of the marking on a communications cable with an LP rating is "CMP-LP (0.6A) (75°C) 23 AWG 4 pair," which indicates that it is a 4-pair plenum cable with 23 AWG conductors, a temperature rating of 75°C, and a current limit of 0.6 amperes. [800.179(F)](https://2023.antflix.net#800.179(F)) | https://2023.antflix.net#800.179(F) |
Chapter 8 Communications Systems | 800.179(G) | Type CMUC undercarpet communications wires and cables shall be listed as being suitable for undercarpet use and shall also be listed as being resistant to flame spread. Informational Note: See ANSI/UL 2556, Standard for Wire and Cable Test Methods, for one method of determining that cable is resistant to flame spread in accordance with the FV-2/VW-1 flame test. [800.179(G)](https://2023.antflix.net#800.179(G)) | https://2023.antflix.net#800.179(G) |
Chapter 8 Communications Systems | 800.179(H) | Communications wires, such as distributing frame wire and jumper wire, shall be listed as being resistant to the spread of fire. Informational Note No. 1: See UL Flame Exposure, Vertical Flame Tray Test in ANSI/UL 1685-2015, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release lest for Electrical and Optical-Fiber Cables, for one method of defining cable flame resistance to the spread of fire where the cables do not spread fire to the top of the tray. The smoke measurements in the test method are not applicable. Informational Note No. 2: See CSA Vertical Flame Test - Cables in Cable Trays, as described in CSA C22.2 No. 0.3-09 (R2019), Test Methods for Electrical Wires and Cables, for another method of defining resistance to the spread of fire is for the damage (char length) of the cable to not exceed 1.5 m (4 ft 11 in.). [800.179(H)](https://2023.antflix.net#800.179(H)) | https://2023.antflix.net#800.179(H) |
Chapter 8 Communications Systems | 800.179(I) | Cables shall be permitted to be surface marked to indicate special characteristics of the cable materials. Informational Note: These markings can include, but are not limited to, markings for limited-smoke, halogen-free, low-smoke halogen-free, and sunlight resistance. [800.179(I)](https://2023.antflix.net#800.179(I)) | https://2023.antflix.net#800.179(I) |
Chapter 8 Communications Systems | 800.180 | Where bonding or grounding is required, devices used to connect a shield, a sheath, or noncurrent-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment. [800.180](https://2023.antflix.net#800.180) | https://2023.antflix.net#800.180 |
Chapter 8 Communications Systems | 800.182 | Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b). Informational Note: See ANSI/UL 2024-5-2015, Cable Routing Assemblies and Communications Raceways, for information on listing requirements for both communications raceways and cable routing assemblies. [800.182](https://2023.antflix.net#800.182) | https://2023.antflix.net#800.182 |
Chapter 8 Communications Systems | 800.182(A) | Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequate fire-resistant and low-smoke-producing characteristics. Informational Note No. 1: See ASTM E84-19B, Standard lest Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723-2018, Standard Test Method for Surface Burning Characteristics of Building Materials, for one method of defining cable routing assemblies and communications raceways that have adequate fire-resistant and low-smoke-producing characteristics and exhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50. Informational Note No. 2: See NFPA 262-2019, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, for another method of defining communications raceways that have adequate fire-resistant and low-smoke-producing characteristics and exhibit a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less. Informational Note No. 3: See 4.3.11.2.6 or 4.3.11.5.5 of NFPA 90A-2021, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on materials exposed to the airflow in ceiling cavity and raised floor plenums.
Table 800.182(a) Cable Routing Assembly Markings Type Marking Plenum Cable Routing Assembly Plenum Cable Routing Assembly Riser Cable Routing Assembly Riser Cable Routing Assembly General-Purpose Cable Routing Assembly General-Purpose Cable Routing Assembly [800.182(A)](https://2023.antflix.net#800.182(A)) | https://2023.antflix.net#800.182(A) |
Chapter 8 Communications Systems | 800.182(B) | Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: See ANSI/UL 1666-2017, Standard Test for Flame Propagation Height of Electrical and Optical Fiber Cable Installed Vertically in Shafts, for one method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor of the cable routing assemblies and communications raceways.Table 800.182(b) Communications Raceway Markings Type Marking Plenum Communications Raceway Plenum Communications Raceway Riser Communications Raceway Riser Communications Raceway General-Purpose Communications Raceway General-Purpose Communications Raceway [800.182(B)](https://2023.antflix.net#800.182(B)) | https://2023.antflix.net#800.182(B) |
Chapter 8 Communications Systems | 800.182(C) | General-purpose cable routing assemblies and general-purpose communications raceways shall be listed as being resistant to the spread of fire. Informational Note: See ANSI/UL 1685-2015, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables, for one method of defining resistance to the spread of fire where the cable routing assemblies and communications raceways do not spread fire to the top of the tray. [800.182(C)](https://2023.antflix.net#800.182(C)) | https://2023.antflix.net#800.182(C) |
Chapter 8 Communications Systems | 805.1 | This article covers communications circuits and equipment. [805.1](https://2023.antflix.net#805.1) | https://2023.antflix.net#805.1 |
Chapter 8 Communications Systems | 805.18 | Equipment electrically connected to a communications network shall be listed in accordance with 800.171. Exception: This listing requirement shall not apply to test equipment that is intended for temporary connection to a telecommunications network by qualified persons during the course of installation, maintenance, or repair of telecommunications equipment or systems. [805.18](https://2023.antflix.net#805.18) | https://2023.antflix.net#805.18 |
Chapter 8 Communications Systems | 805.47 | Where the entire street circuit is run underground and the circuit within the block is placed so as to be free from the likelihood of accidental contact with electric light or power circuits of over 300 volts to ground, the insulation requirements of 805.50(A) and 805.50(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. [805.47](https://2023.antflix.net#805.47) | https://2023.antflix.net#805.47 |
Chapter 8 Communications Systems | 805.50 | Circuits that require primary protectors as provided in 805.90 shall comply with 805.50(A),805.50(B), and 805.50(C). [805.50](https://2023.antflix.net#805.50) | https://2023.antflix.net#805.50 |
Chapter 8 Communications Systems | 805.50(A) | Communications wires and cables without a metal shield, running from the last outdoor support to the primary protector, shall be listed in accordance with 805.173. [805.50(A)](https://2023.antflix.net#805.50(A)) | https://2023.antflix.net#805.50(A) |
Chapter 8 Communications Systems | 805.50(B) | Communications wires and cables in accordance with 805.50(A) shall be separated at least 100 mm (4 in.) from electric light or power conductors not in a raceway or cable or be permanently separated from conductors of the other systems by a continuous and firmly fixed nonconductor in addition to the insulation on the wires, such as porcelain tubes or flexible tubing. Communications wires and cables in accordance with 805.50(A) exposed to accidental contact with electric light and power conductors operating at over 300 volts to ground and attached to buildings shall be separated from woodwork by being supported on glass, porcelain, or other insulating material. Exception: Separation from woodwork shall not be required where fuses are omitted as provided for in 805.90(A)(1), or where conductors are used to extend circuits to a building from a cable having a grounded metal sheath. [805.50(B)](https://2023.antflix.net#805.50(B)) | https://2023.antflix.net#805.50(B) |
Chapter 8 Communications Systems | 805.50(C)(1) | If a primary protector is installed inside the building, the communications wires and cables shall enter the building either through a noncombustible, nonabsorbent insulating bushing or through a metal raceway. Exception: The insulating bushing shall not be required if the entering communications wires and cables meet one or more of the following conditions: (1) Is a metal-sheathed cable (2) Pass through masonry (3) Meet the requirements of 805.50(A) and fuses are omitted in accordance with 805.90(A)(1) (4) Meet the requirements of 805.50(A) and are used to extend circuits to a building from a cable having a grounded metal sheath [805.50(C)(1)](https://2023.antflix.net#805.50(C)(1)) | https://2023.antflix.net#805.50(C)(1) |
Chapter 8 Communications Systems | 805.50(C)(2) | Raceways or bushings shall slope upward from the outside, or, where this cannot be done, drip loops shall be formed in the communications wires and cables immediately before they enter the building. [805.50(C)(2)](https://2023.antflix.net#805.50(C)(2)) | https://2023.antflix.net#805.50(C)(2) |
Chapter 8 Communications Systems | 805.50(C)(3) | Raceways shall be equipped with an approved service head. More than one communications wire and cable shall be permitted to enter through a single raceway or bushing. Conduits or other metal raceways located ahead of the primary protector shall be grounded. [805.50(C)(3)](https://2023.antflix.net#805.50(C)(3)) | https://2023.antflix.net#805.50(C)(3) |
Chapter 8 Communications Systems | 805.90(A) | A listed primary protector shall be provided on each circuit run partly or entirely in aerial wire or aerial cable not confined within a block. Also, a listed primary protector shall be provided on each circuit, aerial or underground, located within the block containing the building served so as to be exposed to accidental contact with electric light or power conductors operating at over 300 volts to ground. In addition, where there exists a lightning exposure, each interbuilding circuit on a premises shall be protected by a listed primary protector at each end of the interbuilding circuit. Installation of primary protectors shall also comply with 110.3(B). Informational Note No. 1: On a circuit not exposed to accidental contact with power conductors, providing a listed primary protector in accordance with this article helps protect against other hazards, such as lightning and above-normal voltages induced by fault currents on power circuits in proximity to the communications circuit. Informational Note No. 2: Interbuilding circuits are considered to have a lightning exposure unless one or more of the following conditions exist:Circuits in large metropolitan areas where buildings are close together and sufficiently high to intercept lightning.Interbuilding cable runs of 42 m (140 ft) or less, directly buried or in underground conduit, where a continuous metallic cable shield or a continuous metal conduit containing the cable is connected to each building grounding electrode system.Areas having an average of five or fewer thunderstorm days per year and earth resistivity of less than 100 ohmmeters. Such areas are found along the Pacific coast.Informational Note No. 3: See NFPA 780-2020, Standard for the Installation of Lightning Protection Systems, for information on lightning protection systems. [805.90(A)](https://2023.antflix.net#805.90(A)) | https://2023.antflix.net#805.90(A) |
Chapter 8 Communications Systems | 805.90(A)(1) | Fuseless-type primary protectors shall be permitted under any of the following conditions: Where conductors enter a building through a cable with grounded metallic sheath member(s) and where the conductors in the cable safely fuse on all currents greater than the current-carrying capacity of the primary protector and of the primary protector bonding conductor or grounding electrode conductorWhere insulated conductors in accordance with 805.50(A) are used to extend circuits to a building from a cable with an effectively grounded metallic sheath member(s) and where the conductors in the cable or cable stub, or the connections between the insulated conductors and the plant exposed to accidental contact with electric light or power conductors operating at greater than 300 volts to ground, safely fuse on all currents greater than the current-carrying capacity of the primary protector, or the associated insulated conductors and of the primary protector bonding conductor or grounding electrode conductorWhere insulated conductors in accordance with 805.50(A) or (B) are used to extend circuits to a building from other than a cable with metallic sheath member(s), where (a) the primary protector is listed as being suitable for this purpose for application with circuits extending from other than a cable with metallic sheath members and (b) the connections of the insulated conductors to the plant exposed to accidental contact with electric light or power conductors operating at greater than 300 volts to ground or the conductors of the plant exposed to accidental contact with electric light or power conductors operating at greater than 300 volts to ground safely fuse on all currents greater than the current-carrying capacity of the primary protector, or associated insulated conductors and of the primary protector bonding conductor or grounding electrode conductorWhere insulated conductors in accordance with 805.50(A) are used to extend circuits aerially to a building from a buried or underground circuit that is unexposed to accidental contact with electric light or power conductors operating at greater than 300 volts to groundWhere insulated conductors in accordance with 805.50(A) are used to extend circuits to a building from cable with an effectively grounded metallic sheath member(s), and where (a) the combination of the primary protector and insulated conductors is listed as being suitable for this purpose for application with circuits extending from a cable with an effectively grounded metallic sheath member(s) and (b) the insulated conductors safely fuse on all currents greater than the current-carrying capacity of the primary protector and of the primary protector bonding conductor or grounding electrode conductorInformational Note: See ANSI/IEEE C2-2017, National Electrical Safety Code, Section 9, for examples of methods of protective grounding that can achieve effective grounding of communications cable sheaths for cables from which communications circuits are extended. [805.90(A)(1)](https://2023.antflix.net#805.90(A)(1)) | https://2023.antflix.net#805.90(A)(1) |
Chapter 8 Communications Systems | 805.90(A)(2) | Where the requirements listed under 805.90(A)(1)(a) through (A)(1)(e) are not met, fused-type primary protectors shall be used. Fused-type primary protectors shall consist of an arrester connected between each line conductor and ground, a fuse in series with each line conductor, and an appropriate mounting arrangement. Primary protector terminals shall be marked to indicate line, instrument, and ground, as applicable. [805.90(A)(2)](https://2023.antflix.net#805.90(A)(2)) | https://2023.antflix.net#805.90(A)(2) |
Chapter 8 Communications Systems | 805.90(B) | The primary protector shall be located in, on, or immediately adjacent to the structure or building served and as close as practicable to the point of entrance. For purposes of this section, primary protectors located at mobile home service equipment within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means connected to an electrode by a grounding electrode conductor in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be considered to meet the requirements of this section. Informational Note: Selecting a primary protector location to achieve the shortest practicable primary protector bonding conductor or grounding electrode conductor helps limit potential differences between communications circuits and other metallic systems. [805.90(B)](https://2023.antflix.net#805.90(B)) | https://2023.antflix.net#805.90(B) |
Chapter 8 Communications Systems | 805.90(C) | The primary protector shall not be located in any hazardous (classified) locations, as defined in 500.5 and 505.5, or in the vicinity of easily ignitible material. Exception: As permitted in 501.150, 502.150, and 503.150. [805.90(C)](https://2023.antflix.net#805.90(C)) | https://2023.antflix.net#805.90(C) |
Chapter 8 Communications Systems | 805.90(D) | Where a secondary protector is installed in series with the indoor communications wire and cable between the primary protector and the equipment, it shall be listed for the purpose in accordance with 805.170(B). Informational Note: Secondary protectors on circuits exposed to accidental contact with electric light or power conductors operating at greater than 300 volts to ground are not intended for use without primary protectors. [805.90(D)](https://2023.antflix.net#805.90(D)) | https://2023.antflix.net#805.90(D) |
Chapter 8 Communications Systems | 805.93 | Communications cables entering the building or terminating on the outside of the building shall comply with 805.93(A) or (B). [805.93](https://2023.antflix.net#805.93) | https://2023.antflix.net#805.93 |
Chapter 8 Communications Systems | 805.93(A) | In installations where the communications cable enters a building, the metallic sheath members of the cable shall be grounded or bonded as specified in 800.100 or interrupted by an insulating joint or equivalent device. The grounding, bonding, or interruption shall be as close as practicable to the point of entrance. [805.93(A)](https://2023.antflix.net#805.93(A)) | https://2023.antflix.net#805.93(A) |
Chapter 8 Communications Systems | 805.93(B) | In installations where the communications cable is terminated on the outside of the building, the metallic sheath members of the cable shall be grounded or bonded as specified in 800.100 or interrupted by an insulating joint or equivalent device. The grounding, bonding, or interruption shall be as close as practicable to the point of termination of the cable. [805.93(B)](https://2023.antflix.net#805.93(B)) | https://2023.antflix.net#805.93(B) |
Chapter 8 Communications Systems | 805.154 | The substitutions for communications cables listed in Table 805.154 and illustrated in Figure 805.154 shall be permitted. Table 805.154 Cable Substitutions Cable Type Permitted Substitutions CMR CMP CMG, CM CMP, CMR CMX CMP, CMR, CMG, CM FIGURE 805.154 Cable Substitution Hierarchy. [805.154](https://2023.antflix.net#805.154) | https://2023.antflix.net#805.154 |
Chapter 8 Communications Systems | 805.156 | For new construction, a minimum of one communications outlet shall be installed within the dwelling in a readily accessible area and cabled to the service provider demarcation point. [805.156](https://2023.antflix.net#805.156) | https://2023.antflix.net#805.156 |
Chapter 8 Communications Systems | 805.170 | Protectors shall be listed in accordance with 805.170(A) or 805.170(B). [805.170](https://2023.antflix.net#805.170) | https://2023.antflix.net#805.170 |
Chapter 8 Communications Systems | 805.170(A) | The primary protector shall be listed and consist of an arrester connected between each line conductor and ground in an appropriate mounting. Primary protector terminals shall be marked to indicate line and ground as applicable. Informational Note: See ANSI/UL 497-2017, Standard for Protectors for Paired Conductor Communications Circuits, to determine applicable requirements for a listed primary protector. [805.170(A)](https://2023.antflix.net#805.170(A)) | https://2023.antflix.net#805.170(A) |
Chapter 8 Communications Systems | 805.170(B) | The secondary protector shall be listed as suitable to provide means to safely limit currents to less than the current-carrying capacity of listed indoor communications wire and cable, listed telephone set line cords, and listed communications terminal equipment having ports for external wire line communications circuits. Any overvoltage protection, arresters, or grounding connection shall be connected on the equipment terminals side of the secondary protector current-limiting means. Informational Note: See ANSI/UL 497A-2019, Standard for Secondary Protectors for Communications Circuits, to determine applicable requirements for a listed secondary protector. [805.170(B)](https://2023.antflix.net#805.170(B)) | https://2023.antflix.net#805.170(B) |
Chapter 8 Communications Systems | 805.173 | 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 shall have current-carrying capacity as specified in 805.90(A)(1) (b) or (A)(1) (c). [805.173](https://2023.antflix.net#805.173) | https://2023.antflix.net#805.173 |
Chapter 8 Communications Systems | 810.1 | This article covers antenna systems for radio and television receiving equipment, amateur and citizen band radio transmitting and receiving equipment, and certain features of transmitter safety. This article covers antennas such as wire-strung type, multi-element, vertical rod, flat, or parabolic and also covers the wiring and cabling that connect them to equipment. This article does not cover equipment and antennas used for coupling carrier current to power line conductors. [810.1](https://2023.antflix.net#810.1) | https://2023.antflix.net#810.1 |
Chapter 8 Communications Systems | 810.3 | Wiring from the source of power to and between devices connected to the interior wiring system shall comply with the following: Chapters 1 through 4 other than as modified by Parts I and II of Article 640.Coaxial cables that connect antennas to equipment shall comply with the appropriate article of Chapter 8.Wiring and equipment installed in hazardous (classified) locations shall comply with the appropriate requirements in Chapter 5. [810.3](https://2023.antflix.net#810.3) | https://2023.antflix.net#810.3 |
Chapter 8 Communications Systems | 810.4 | The installation of the antenna shall comply with this article. The installation of the distribution system shall comply with the appropriate article of Chapter 8. [810.4](https://2023.antflix.net#810.4) | https://2023.antflix.net#810.4 |
Chapter 8 Communications Systems | 810.5 | Radio interference eliminators, interference capacitors, or noise suppressors connected to power-supply leads shall be of a listed type. They shall not be exposed to physical damage. [810.5](https://2023.antflix.net#810.5) | https://2023.antflix.net#810.5 |
Chapter 8 Communications Systems | 810.6 | If an antenna lead-in surge protector is installed, it shall be listed as being suitable for limiting surges on the cable that connects the antenna to the receiver/transmitter electronics and shall be connected between the conductors and the grounded shield or other ground connection. The antenna lead-in protector shall be grounded using a bonding conductor or grounding electrode conductor installed in accordance with 810.21 (F). Informational Note: See UL 497E, Outline of Investigation for Protectors for Antenna Lead-In Conductors, for information concerning protectors for antenna lead-in conductors. [810.6](https://2023.antflix.net#810.6) | https://2023.antflix.net#810.6 |
Chapter 8 Communications Systems | 810.7 | If bonding or grounding is required, devices used to connect a shield, a sheath, noncurrent-carrying metal members of a cable, or metal parts of equipment or antennas to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment. [810.7](https://2023.antflix.net#810.7) | https://2023.antflix.net#810.7 |
Chapter 8 Communications Systems | 810.11 | Antennas and lead-in conductors shall be of hard-drawn copper, bronze, aluminum alloy, copper-clad steel, or other high-strength, corrosion-resistant material. Exception: Soft-drawn or medium-drawn copper shall be permitted for lead-in conductors if the maximum span between points of support is less than 11 m (35 ft). [810.11](https://2023.antflix.net#810.11) | https://2023.antflix.net#810.11 |
Chapter 8 Communications Systems | 810.12 | Outdoor antennas and lead-in conductors shall be securely supported. The antennas or lead-in conductors shall not be attached to the electric service mast. They shall not be attached to poles or similar structures carrying open electric light or power wires or trolley wires of over 250 volts between conductors. Insulators supporting the antenna conductors shall have sufficient mechanical strength to safely support the conductors. Lead-in conductors shall be securely attached to the antennas. [810.12](https://2023.antflix.net#810.12) | https://2023.antflix.net#810.12 |
Chapter 8 Communications Systems | 810.13 | Outdoor antennas and lead-in conductors from an antenna to a building shall not cross over open conductors of electric light or power circuits and shall be kept well away from all such circuits so as to avoid the possibility of accidental contact. Where proximity to open electric light or power service conductors of less than 250 volts between conductors cannot be avoided, the installation shall be such as to provide a clearance of at least 600 mm (2 ft). Where practicable, antenna conductors shall be installed so as not to cross under open electric light or power conductors. [810.13](https://2023.antflix.net#810.13) | https://2023.antflix.net#810.13 |
Chapter 8 Communications Systems | 810.14 | Splices and joints in antenna spans shall be made mechanically secure with approved splicing devices or by such other means and be suitable for the conditions of use and location in compliance with 110.14(A) and (B). [810.14](https://2023.antflix.net#810.14) | https://2023.antflix.net#810.14 |
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