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GLOSSARY OF TERMS | E-H |
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Electromagnetic |
Unwanted signals picked up and transmitted over electrical lines, caused by varying magnetic fields. |
Eccentricity |
Like concentricity, a measure of the center of a conductor's location with respect to the circular cross-section of the insulation. Expressed as a percentage of displacement of one circle within the other. |
Elongation
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The fractional increase in length of a material stressed in tension. |
Energy Capacity |
The heat absorption capacity to absorb electrically generated heat, expressed in joules, or watt-seconds. |
Filler |
(1) A material used in multiconductor cables to occupy large interstices formed by the assembled conductors. (2) An inert substance added to a compound to improve properties or decrease cost. |
Flame Resistance |
The ability of a material not to propagate flame once the heat source is removed. |
Flex Life |
The measurement of the ability of a conductor or cable to withstand repeated bending. |
Frequency |
The number of times an alternating current repeats its cycle in one second. (See Hertz). |
Gauge |
A term used to denote the physical size of a wire. |
Ground |
An electrical term meaning to connect to the earth or other large conducting body to serve as an earth, thus making a complete electrical circuit. |
HPN |
Parallel heater cord, typically neoprene-type insulation. |
Harness |
An arrangement of wires and cables, usually with many breakouts, which have been tied together or pulled into a rubber or plastic sheath, used to interconnect an electrical circuit. |
Hertz (Hz) |
A term replacing cycles per second as an indication of frequency. |
High Potential |
A test designed to check the integrity of a conductor's insulation by applying a specified high voltage. |
Hybrid Circuit |
A surge suppressor that uses a combination of two or more types of electronic devious to provide additional or multi-stage surge protection (most surge protection use only MOVs). |
Hz |
Abbreviation for hertz. |
