Do you know if your data cabling up to code?


When installing voice and data cabling, you need to consider the safety codes and standards. No one wants to spend thousands of dollars on cabling c in the wrong area and must spend more money to redo it. Cat5 and Cat6 cables most commonly come with two types of jackets: Communications Multipurpose Cable, Riser (CMR) and Communications Multipurpose Cable, Plenum (CMP). Their safety ratings are defined by the National Electrical Code (NEC).

CMR: Should be used in riser closets between floors. This cable is flame retardant and avoids the spread of fire between floors. It can be utilized anywhere except air returns. Make sure to seal all holes in walls and ceilings with a Fire Rated Silicone sealant or another fire stopping barrier. The jacket of CMR is polyvinyl chloride (PVC) is cheap and flexible but you need to keep in mind that in case of a fire it will produce a thick, hazardous smoke.

CMP: Must be used in any plenum space. This type of cables is designed using materials that burn more cleanly and self-extinguish more easily. Plenum is used in all air return spaces and so it’s an NEC code. An example of the most common types of plenum spaces would be a dropped ceiling or raised floor. Raised floors are used often in server rooms. Not all drop tile ceilings are cold air returns but need to be checked out before cabling starts. Look for more than one air vent in each room. The jacket of CMP is fluorinated ethylene polymer (FEP) is a cable costly, but it can be used anywhere that CMR can be used, but with the addition of air returns.

If you need to find the right cable and installer for your upcoming cabling project, contact Westcoast. Whether you’re planning a remodel, move, or build-out, we’ll get your voice and data cabling in the right place at the right time.