... intruder alarm systemsNEC 725/800: CM / CL2,1. Power cable, PVC Insulated 2. Stranded Copper Conductor 3. ... PVC sheathed 4. unshielded Flexible Power cable RVBSuitable for use in conduit and for fixed, protected installation of Wiring ... , Intercoms, Telephone Stations, Speakers, Instrumentation, Control and other Low Voltage Circuits that are Power-Limited and anti-interference needed Power cable RVB