HOT TIN DIP - A process of passing bare wire through a bath of molten tin to provide a coating.
HPD - Heater cord, rubber, and high temperature barrier, insulated with an overall braid.
HPN - Heater cord, Neoprene®, parallel, two conductor.
Neoprene® is a trademark of the DuPont de Nemours Co.
HR - Abbreviation for high resistance wire.
hrs - Abbreviation for hours.
HT - a) Abbreviation for high tension. See high voltage. b) Abbreviation for high temperature.
HW - Type designation for heavy wall, 2,500 volt electronic hook-up wire to MIL-W-76.
HYGROSCOPIC - Readily absorbing and retaining moisture.
HYPALON® - A synthetic rubber, chlorosulfonated polyethylene (CSPE or CP). Hypalon® is a trademark of the DuPont de Nemours Co. Resistant to oxidation by ozone, sun, weather, heat, and chemicals, rated 90° C.
Hz - Abbreviation for Hertz. See Hertz.
I - Symbol used to designate current. See current.
I.D. - Abbreviation for inside diameter.
