| G |
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| Gauge |
The diameter of a wire |
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| Gain |
Increase of voltage, current, or power over a standard reading |
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| Ground |
An electrical connection between a circuit and the earth or other large connecting body |
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| Ground Conductor |
A conductor in a transmission cable or line that is grounded |
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| H |
| Harmonized |
Products that meet requirements of CENELEC for use in the European Economic Community |
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| Harness |
An assembly of wires and cables, typically with many breakouts, that have been tied together or pulled into a rubber or plastic sheath, used to connect electric circuits |
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| Hazardous Location |
Flammable vapors or fibers that may cause fire or explosion as defined by the NEC |
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| Helical Stripe |
A spiral stripe applied to a conductor for circuit identification |
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| High Frequency |
The band from 3 to 30 MHz in the radio spectrum, designated by the Federal Communications Commission |
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| High Tension Cables |
High voltage ignition wires for combustion engines, gas and oil igniters |
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| Hook Up Wire |
Single insulated conductor wire |
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| I |
| IEEE |
Institute of Electrical and Electronic Engineers |
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| Impedance |
The total opposition offered by a circuit to the flow of alternating current or any varying current at a specific frequency |
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| Impedance Match |
Occurs when the impedance of a particular circuit, cable or component is equal to the impedance of the circuit, cable or device to which it is connected |
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| Inductance |
Property of wire which stores electrical current in a magnetic field around a wire |
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| Induction |
The phenomenon of a voltage or magnetic field being generated in an object from the source of such fields |
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| Insulation |
Material used to separate close electrical components that has good dielectric properties |
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| Insulation Resistance |
The resistance offered by an insulation to an impressed dc voltage, likely to produce a leakage current through the insulation |
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| Insulation Stress |
The molecule separation pressure caused by a potential difference across an insulator |
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| Interface |
The region where two systems or a major and a minor system can meet and interact with each other |
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| Interference |
Disturbances of an electrical or electromagnetic nature that introduce undesirable responses into other electronic equipment |
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| IR Drop |
The designation of a voltage drop in terms of current and resistance |
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| Irradiation |
In insulations, the exposure of the material to high energy emissions to alter the molecular structure by cross-linking |
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| ISO |
International Standards Organization |
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| Isolation |
The ability of a circuit or component to reject interference |