T - The old UL designation for switchboard wire insulated with thermoplastic lead wire.
TA - The UL designation for switchboard wire insulated with thermoplastic and a high temperature barrier.
TAGT - Stranded nickel-clad copper conductor insulated with fused PTFE tape, high temperature barrier, and PTFE impregnated glass braid. 600 volt, 250° C rating.
TANK TEST - A voltage dielectric test in which the test sample is submerged in water and voltage is applied between the conductor and water as ground.
TC - a) Abbreviation for tinned copper. b) Type TC power and control tray cable.
TCCS - Abbreviation for tinned copper-clad steel.
TCW - Abbreviation for tinned Copperweld®. Copperweld® is a trademark of the Copperweld Steel Company.
TEFLON® - Teflon® is DuPont de Nemours Co.'s trade name for their family of fluorocarbon resins including Teflon® TFE (tetrafluoroethylene), Teflon® FEP (fluorinated ethylene propylene), and Teflon® PFA (perfluoroalkoxy). See tetrafluorethylene and perfluoroalkoxy.
TEFLON® IMPREGNATED - Refers to the saturation of a heat resistant fibrous glass braid with Teflon® suspension. After saturation, the Teflon® is cured. Teflon® is a trademark of the DuPont de Nemours Co.
TEFZEL® - Trademark of the DuPont de Numerous Co. Abbreviation ETFE. See ethylene tetrafluoroethylene.
TELEMETRY CABLE - Cable used for the transmission of information from instruments to the peripheral recording equipment.
TELEPHONE WIRE - This is a general term referring to many different types of communication wire. It refers to a class of wires and cables rather than a specific type.