LEAD SHEATHA continuous jacket of lead molded around a single-conductor or multiple-conductor
cable. Generally used to ensure that conductors are protected from water or extensive moisture.
MAGNET WIREWire coated with an enamel insulation and used in coils, relays, transformers, motor
windings, and so forth.
METALLIC ARMORA protective covering for wires or cables. Made as a woven wire braid, metal
tape, or interlocking metal cover. Made from steel, copper, bronze, or aluminum.
MILThe diameter of a conductor equal to 1/1000th (.001) inch.
MIL-FOOTA unit of measurement for conductors. (Diameter of 1 mil, 1 foot in length.)
MILITARY SPECIFICATIONS (MIL-SPEC)Technical requirements and standards adopted by the
Department of Defense, which are to be met by vendors selling materials to DOD.
MULTICONDUCTORMore than one conductor.
NEGATIVE TEMPERATURE COEFFICIENTThe temperature coefficient expressing the amount or
reduction in the value of a quantity, such as resistance for each degree of increase in temperature.
OXIDATIONThe addition of atmospheric oxygen to metal to form rust, or to cause a breakdown in the
internal construction of the metal.
PETROLEUM ABRASIVE COMPOUNDA compound that causes a grinding action during the
crimping operation and removes the oxide film from the aluminum.
PICTORIAL DIAGRAMA diagram showing pictorial sketches of the parts of a piece of equipment and
the electrical connections between the parts.
POWER LOSSThe electrical power supplied to a circuit that does no work, usually dissipated as heat.
RECEPTIVITYThe reciprocal of conductivity. (See also SPECIFIC RESISTANCE.)
RHEOSTAT(1) A resistor whose value can be varied. (2) A variable resistor used to adjust the current in
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SCHEMATICA diagram that shows, in graphic symbols, the electrical connections and functions of a
specific circuit arrangement. The schematic diagram makes tracing the circuit and its functions easier
without regard to the physical size, shape, or location of the component device or parts.
SINGLE-LINE DIAGRAMA diagram that shows, in single lines and graphic symbols, the course of an
electric circuit or system of circuits and the component devices or parts used in the circuit(s).
SOLDERINGThe joining of metals with a higher melting point than solder.
SPAGHETTI TUBING(See TRANSPARENT TUBING.)
SPECIFIC RESISTANCEThe resistance, measured in ohms, of a unit volume of a substance to the flow
of electric current. (The unit volume used is generally the Circular-Mil-Foot.)
SPLICEA joint formed by connecting two or more conductors.