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Hard Drawn Copper
Wire. Copper wire that has not been annealed
after drawing.
Harness. An arrangement of wires and
cables, usually with many breakouts, which have been pulled
together or pulled into a rubber or plastic sheath, used
to interconnect an electric circuit.
Hash Mark Stripe. A noncontinuous helical
stripe applied to a conductor for identification.
Heat Distortion. Distortion or flow of
a material or configuration due to application of heat.
Heat Endurance. The time of heat aging
that a material can withstand before failing a specific
physical or electrical test.
Heat Resistance. Ability of a substance
to maintain physical and chemical identity and electrical
integrity under specified temperature conditions.
Heat Seal. A method for sealing by thermal
fusion.
Heat Shock. A test to determine stability
of a material by sudden exposure to a high temperature
for a short period of time.
Helical Stripe. A continuous, colored
spiral stripe applied to a conductor for circuit identification.
Henry. Unit of inductance such that the
induced voltage in volts is numerically equal to the rate
of change in current in amperes per second.
Hertz (Hz). A term replaced cycles-per-
second as a unit of frequency.
Hi Pot. A test designed to determine
the highest voltage that can be applied to a conductor
without electrically breaking down the insulation.
Hook-Up Wire. A single insulated conductor
used for low current, low voltage (usually under 600 volts)
applications within enclosed electronic equipment.
Hygroscopic. Capable of absorbing and
retaining moisture.
Hz. Abbreviation for hertz.
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