PITCH - In flat cable, the nominal distance between the index edges of two adjacent conductors.
PLAIN ENAMEL - Type of magnet wire. Wire is dip coated with a varnish and then baked.
PLANAR - Of, relating to, or lying in a plane; two-dimensional in quantity.
PLASTICIZER - A chemical agent added to plastics to make them softer and more pliable.
PLATED - Covered with an adherent layer mechanically, chemically, or electrically.
PLENUM - The air return path of a central air handling system, either duct work or open space, over a dropped ceiling.
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.
