HWC 18/2 Plenum rated multi-conductor cable features 15-mil thick gray colored low smoke PVC that jacket withstands daily wear and tear. This 0.16-Inch OD soft annealed bare copper cable has 8-mil thick low-smoke PVC insulation that resists electrical leakage and offers protection against environmental threats. It has operating temperature range of 75 deg C. Cable is ideal for security, intercom, public address, sound and audio systems. Cable is UL listed and meets NEC Article 725 Type CL3P, NEC Article 800 Type CMP standards.