 |
NEC Substitution Chart
| Fire Resistance Level |
Test Requirement |
NEC Article |
| 800 |
725 |
760 |
Plenum Cables
(Highest) |
UL910 (Steiner Tunnel)
CSA-FT6 (Steiner Tunnel) |
MPP
CMP |
CL3PCL2P |
FPLP |
Riser Cables
Multiple Floors |
UL-1666 (Vertical Shaft)
CSA-FT4 (Vertical Tray) |
MPR
CMR |
CL3RCL2R |
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
|
CL2CL3X |
|
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 |
The information provided in the resources section is intended for reference only.
There is no guarantee, written or implied, regarding the accuracy of the
information provided.
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