Mike Dolt Enterprises
Mike Dolt Enterprises
User: Richard Paul, Location: Chapel Hill, NC
Asked on: Tuesday, March 29, 2011 at 2:41 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:26 am EDT
Question: We are in the process of installing some cigarette lighter-type receptacles throughout a large house. The fixtures all have Jack Points on them and will be "plug and play." They have been Listed by Intertek (ETL). We assumed that the 12 volt fixtures on a Class II transformer would have to be fed by wire inside of conduit. My ETL inspector said that there is a Class II cable that can run within walls and that conduit is not required. What would be the specific type of cable I would need to use other than just "Class II cable"?
The specific type of cable you need to use for 12-volt Class II fixtures that do not require conduit is
Type CL2P or CL3P Cable
CL2P (Plenum)
For use in air handling spaces (e.g., ducts, plenums) where fire resistance is critical.
CL3P (Non-Plenum)
For use in other areas within walls and ceilings.These cables are specifically designed for Class II applications and meet the requirements of the National Electrical Code (NEC) for in-wall wiring without conduit. They typically have the following characteristics:
Insulation
Polyvinyl Chloride (PVC) or other approved materials
Conductor
Copper or aluminum
Voltage Rating
300 volts or less
Marked
"CL2P" or "CL3P" on the cable jacket
Additional Notes: Type CL2P or CL3P cables should be installed in accordance with the manufacturer's instructions and the NEC. The use of conduit with Class II cables is not necessary but may be desirable for added protection in certain situations, such as where cables may be subject to mechanical damage.* Always consult with your local building inspector or electrical contractor to confirm the specific requirements for your installation. Flag for review