NEC Substitution Chart
Communication wire and cable for premise installation in
accordance with Article 800, and other applicable parts of the National
Electrical Code (NEC) latest issue.
|
Fire Resistance Level |
Test Requirement
|
NEC Article
|
|
800
|
725
|
760
|
Plenum Cables
(Highest) |
UL910 (Steiner Tunnel)
CSA-FT6 (Steiner Tunnel) |
MPP
CMP |
CL3P
CL2P
|
FPLP
|
Riser Cables
Multiple Floors |
UL-1666 (Vertical Shaft)
CSA-FT4 (Vertical Tray) |
MPR
CMR |
CL3R
CL2R
|
FPLR
|
| General Purpose Cables |
UL-1581 (Vertical Tray) |
MP CM
|
CL3
|
FPL
|
Residential Cables
(Lowest) Restricted Use |
CSA-FT4 (Vertical Tray)
UL-1581 VW-1 |
CMX
|
CL2
CL3X
|
|
Cables with a higher resistance level may be substituted
for those with a lower fire resistance level.
Non-fire rated outside plant telephone cables may not
run outside of a rigid metal conduit more than 50 feet from the point of
entrance into a building.
Cables rated CMG or CM may be used in runs penetrating
one floor. (NEC 800-53)
| Type |
Decription |
| CM |
Communications Wires and Cables |
| CL2 and CL3 |
Class2 and Class 3
Remote-Control, Signaling, and Power-Limited Cables |
FPL
|
Power-Limited
Fire Alarm Cables |
| MP |
Multipurpose Cables |
| PLTC |
Power-Limited Tray Cables |
|
