Glossary of Wire & Cable Terminology
EARTH FAULT - A fault that occurs when a conductor is accidentally connected to earth or when the resistance to earth of an insulator falls below a specific value.
EARTH POTENTIAL - The potential of a large conducting body, such as the earth, taken to be the arbitrary zero in the scale of electrical potential. Synonymous with zero potential.
ECM - Abbreviation for Electronic Counter Measure. The use of equipment to prevent or induce jamming of electronic equipment, missile systems, radar, radio, and other devices.
ECTFE - Abbreviation for ethylene chlorotrifluoroethylene copolymer. See ethylene chlorotrifluoroethylene. Trade name Halar®. Halar® is a trademark of the Allied Chemical Co.
EEA - Abbreviation for ethylene-ethyl acrylate copolymer.
EHF - Abbreviation for extremely high frequency. See frequency band.
EIA - Abbreviation for Electronics Industries Association. Formerly know as RETMA (Radio Electronics Television Manufacturers Association).
ELASTOMER - A rubberlike substance.
ELECTRICAL DUCT - Any electrical conduit or other raceway round in cross section, approved or listed for use underground, and embedded in earth or concrete.
ELECTROTINNED - Wire tinned with pure tin using an electrolytic process.
ELECTROMOTIVE FORCE - Pressure or voltage. The force which causes current to flow in a circuit. The algebraic sum of the potential differences in a circuit equals the EMF, which is measured by the energy liberated when unit electric charge passes completely round the circuit. A battery of EMF, E, will supply a current, I, to an external resistance, R:
E = I (R + r)
where r is the internal resistance of the battery.
The term "electromotive force" strictly applies to a source of electrical energy but is sometimes misused as being equivalent to potential difference. Symbol E. Abbreviated as EMF.
ELONGATION - The state of being elongated or lengthened.
EMC - Abbreviation for electromagnetic compatibility. No emission of interference exceeding FCC limits.
EMF - Abbreviation for electromotive force. See electromotive force.
EMI - Abbreviation for electromagnetic interference.
EMP - Abbreviation for electromagnetic pulse.
ENAMELED WIRE - A conductor with a baked-on varnish enamel; may be 7 AWG through 50 AWG. Intended for use in winding motors, coils, transformers, and other applications of similar usage.
ENERGIZE - To apply rated voltage to a circuit or device, such as the coil of a relay, in order to activate it.
ENERGY - The capacity for performing work. EP - Abbreviation for ethylene propylene.
EPDM - Abbreviation for ethylene propylenediene monomer rubber.
EPN - Abbreviation for extended performance network cable.
EPOXY - A potting resin used in bonding, e.g., to bond PTFE wire to pot connectors to assure that they are moisture proof.
EPR - Abbreviation for ethylene propylene copolymer rubber. It has properties similar to butyl rubber. The polymer is chemically cross-linked.
ESI - Abbreviation for electrostatic interference.
ETCHED WIRE - A process applied to PTFE wire in which the wire is passed through a sodium bath to create a rough surface to allow epoxy resin to bond the PTFE.
ETFE - Abbreviation for ethylene tetrafluoroethylene. See ethylene tetrafluoroethylene.
ETHERNET - Local area network configuration.
ETHYLENE - A colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas. It can be produced by pyrolysis of petroleum hydrocarbon.
ethylene chlorotrifluoroethylene - A high temperature fluoropolymer of high dielectric strength (HALAR®). Abbreviation ECTFE. Also abbreviated as ECTFE-XI. Halar® is a trademark of the Allied Chemical Co.
ethylene tetrafluoroethylene - A high temperature insulation of high dielectric strength. Abbreviation ETFE.
ethylene tetrafluoroethylenecopolymer - A high temperature cross-linked fluoropolymer of high dielectric strength per MIL-C-17. Abbreviation XLETFE.
ETL - ETL Testing Laboratory.
EXTREMELY HIGH FREQUENCY - See frequency band.
EXTRUDE - To shape (as metal or plastic) by forcing through a die.
EXTRUSION - The process of continuously forcing both a plastic or elastomer and a conductor core through a die, thereby applying a continuous coating of insulation or jacket to the core or conductor.
Standard Wire & Cable Company can supply you with the right sizes, types, and quantities of product you need to keep you on schedule and your management happy. We have been doing this for companies since 1947.
If you need a non-stock item, don't worry. We will have it made for you. Custom cable and custom heat shrink shapes are another of our specialties. We provide design, engineering, and manufacturing solutions to meet your exact requirements.
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