Title: Unit 7 Glossary
Course: ELT 102 Basic Electricity & Wiring > Section: ELT 102 Basic Electricity & Wiring

Unit 7 Glossary

Terms

Term | Definitions
National Electrical Code (NEC) | The standard for minimum safe electrical installations. The National Electrical Code is adopted in some form as law in all 50 states.
Neutral Wire | The wire that conducts the power back to the source and completes the circuit. The neutral wire is usually covered with white insulation.
Period | the time required for one complete cycle of a regular, repeating series of events.
Phase | the angular relationship between current and voltage in alternating-current circuits.
Pictorial Diagram | is much like a photograph of the circuit, an electrical print that shows the external appearance of each component in the circuit.
Power Cable | is an assembly of two or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power.
Receptacle | an electrical wall outlet designed for use with a plug.
Schematic Diagram | a graphical representation of a circuit, with components or electrical systems represented by graphical symbols.
Service | the conductors and equipment used to deliver energy from the electric supply system to the system being served.
Service Entrance | The point where electricity enters a building. A service-entrance switchboard has metering equipment and devices for over-current protection and electrical control.
Sheath | the external conducting surface of a shielded transmission line.
Solid-core wire | also called single-strand wire, consists of one piece of metal wire.
Stranded wire | a conductor composed of a group of wires, usually twisted or braided together.
Terminal | A point of connect for two or more conductors in an electrical circuit.
Three-way Switch | a switch which can connect one conductor to any one of two conductors.
Waveform | the graphic representation of a wave showing the variations in amplitude over a period of time.
Wire gauge | also called American Wire Gauge ( AWG )- a system of numerical designations of wire size.
Wiring diagram | a diagram that shows electrical components and/or equipment, together with all interconnecting wiring.