cable
CMG, Communications 800.154(C)(1) CMP, CMR CM general-purpose
cable
CMX Communications 800.154(C) CMP, CMR,
cable, limited CMG, CM
use
Plenum CMP
v
Riser CMR
"
General purpose CMG CM
,r
Dwellings CMX
Type CM—Communications cables
0 Cable A shall be permitted to be used in place of cable B.
Figure 800.154(E) Cable Substitution Hierarchy.
for Safety, Communications Circuit Accessories. For information on listing requirements for communications raceways, see UL 2024-2004, Standard for Optical Fiber and Communication Cable Raceways.
(A) Primary Protectors. The primary protector shall con sist of an arrester connected between each line conductor and ground in an appropriate mounting.
volts minimum. The cable voltage rating shall not be marked on the cable or on the undercarpet communications wire. Communications wires and cables shall have a temperature rating of not less than
60°C.
Exception: Voltage markings shall be permitted where the cable has multiple listings and voltage marking is required for one or more of the listings.
FPN No. 1: Voltage markings on cables may be misinterpreted to suggest that the cables may be suitable for Class 1, electric light, and power applications.
FPN No. 2: See 800.170 for listing requirement for equipment.
Table 800.179 Cable Markings
Cable Marking Type Reference
Primary protector terminals shall be marked to indicate
line and ground as applicable.
FPN: One way to determine applicable requirements for a listed primary protector is to refer to ANSI/UL 497-
1995, Standard for Protectors for Paired Conductor
Communications Circuits.
(B) Secondary Protectors. 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.
FPN: One way to determine applicable requirements for a listed secondary protector is to refer to UL 497A-
1996, Standard for Secondary Protectors for
Communications Circuits.
800.173 Drop Wire and Cable. 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 800.90(A)(1)(b) or (A)(1)(c).
800.179 Communications Wires and Cables. Communications wires and cables shall be listed in accordance with 800.179(A) through (I) and marked in accordance with Table 800.179. Conductors in communications cables, other than in a coaxial cable, shall be copper.
Communications wires and 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
CMP Communications 800.179(A) and
plenum cable 800.154(A) CMR Communications 800.179(B) and
riser cable 800.154(B) CMG Communications 800.179(C) and
general-purpose 800.154(C)(1) and
cable (D)
CM Communications 800.179(D) and
general-purpose 800.154(C)(1) and
cable (D)
CMX Communications 800.179(E) and
cable, limited use 800.154(C)(2), (3), (4), and (5)
CMUC Undercarpet 800.179(F) and communications 800.154(C)(6) wire and cable
FPN No. 1: Cable types