PLENUM CABLE - Cable approved by Underwriters Laboratories for installation in plenums without the need for conduit. Generally the insulation and jackets are fluorocarbon based materials.
PLSJ - Cord, light duty, all rubber, parallel, two conductor, 300 volt.
PLT - Same as PLSJ except plastic.
PLTC - Abbreviation for parallel tray cable.
PNR - Control cable using polyethylene and nylon on the conductors and PVC jacket.
PO - Rayon parallel lamp cord with a stranded copper conductor, separator, rubber insulation, cotton braid, rayon braid overall. Used in dry places on small appliances.
POL - Abbreviation for polyethylene. Also abbreviated PE and poly. See polyethylene.
POLY - Abbreviation for polyethylene. Also abbreviated PE and pol. See polyethylene.
POLYALKALENE - A polymer, typically polyethylene, made from alkene monomer. Primary insulation compound used in MIL-W-81044.
POLYAMIDE - a) A compound characterized by more than one amide group. b) A polymeric amide (nylon).
POLYCHLOROPRENE - Chemical name for Neoprene®. Used for jacketing wire and cable that will be subject to rough usage, moisture, oil, greases, solvents, and/or chemicals. May also be used as a low voltage insulating material. Neoprene® is a trademark of the DuPont de Nemours Co.
POLYESTER - Any of a group of polymers that consists basically of repeated units of an ester and are used especially in making fibers or plastics. More specifically, polyethylene tetephthalate which is used extensively in the production of a high strength moisture resistant film used as a cable core wrap.
