LDPE - Abbreviation for low density polyethylene.
LEACHING AND NON LEACHING - In a leaching wire, the plasticizer will migrate or leave the vinyl compound when exposed to the heat of baking. The wire so treated becomes brittle and hard. A non leaching wire will retain its plasticizer under extreme temperature conditions and remain flexible after baking. Non leaching wire is desirable for use as motor lead wire.
LEAD CURED - A cable that is cured or vulcanized in a metallic lead mold.
LEAD-IN - The cable that connects the active part of an aerial to the transmitter or receiver.
LEAKAGE - The passage of an electric current along a path other than that intended due to faulty insulation or isolation in a circuit, component, device, or other piece of apparatus.
LED - Abbreviation for light emitting diode.
LEVEL 1, 2, 3, 4, & 5 - Underwriters Laboratories' performance designations for unshielded, twisted pair cables. See Category 1, 2, 3, 4, or 5.
LF - Abbreviation for low frequency. See frequency band.
LINE VOLTAGE - The voltage existing in a cable or circuit.
LITZ WIRE - Short for litzendraht wire. A construction of fine individually insulated strands specially woven or braided together to reduce skin effect and thus lower resistance to high frequency currents.
LOCAL AREA NETWORK - A baseband or broadband interactive bidirectional communication system for voice, video, or data use on a common cable medium. Abbreviation LAN.
LONGITUDINAL SHIELD - A tape shield, flat or corrugated, applied longitudinally with the axis of the core being shielded.
