Substation1
Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

cable
an assembly of insulated conductors, either buried or carried on poles (aerial cable).
cable limiter
a cable connector that contains a fuse. Cable limiters are used to protect individual conductors that are connected in parallel on one phase of a circuit.
cable tray
a specialized form of raceway used to hold insulated electric power cables in a building.
coaxial cable
A transmission line formed by two concentric conductors separated by a dielectric designed to confine the fields and their energy in the medium between said conductors. It is often used in applications where signal interference between the cable and its surrounds must be kept to a minimum.

See coax
fiber-optic cable
a glass fiber cable that conducts light signals and can be used in token ring local area networks and metropolitan area networks. Fiber optics can provide higher data rates than coaxial cable. They are also immune to electrical interference.
gas cable
an electric power cable which is pressurized with an insulating gas, typically sulfur hexaflouride, for its primary insulation.
messenger cable
a fully-insulated three-phase aerial cable in which three individual insulated conductors are carried on insulated looms hung upon a bare messenger wire. Such cable is used frequently in distribution work.
pipe cable
a paper-insulated high-voltage electric power transmission cable laid within a rigid steel pipe containing pressurized insulating oil.
semi-rigid cable
a coaxial cable with a solid metal outer-conductor. Typically used where the cable is bent to fit the application only once.
triplex cable
a cable used for residential or commercial service drops consisting of two or three insulated conductors spiralled around a bare neutral wire which provides support for the cable.