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Telecommunication key definitions
  • Key definitions for the telecommunications industry are found in this section.

Alive or live (energized): Electrically connected to a source of potential difference, or electrically charged so as to have a potential significantly different from that of the earth in the vicinity. The term "live" is sometimes used in the place of the term "current-carrying," where the intent is clear, to avoid repetition of the longer term.

Barricade: A physical obstruction such as tapes, cones, or "A" frame type wood and/or metal structure intended to warn and limit access to a work area.

Cable: A conductor with insulation, or a stranded conductor with or without insulation and other coverings (single-conductor cable), or a combination of conductors insulated from one another (multiple-conductor cable).

Circuit: A conductor or system of conductors through which an electric current is intended to flow.

Conductor: A material, usually in the form of a wire, cable, or bus bar, suitable for carrying an electric current.

Equipment: A general term which includes materials, fittings, devices, appliances, fixtures, apparatus, and similar items used as part of, or in connection with, a supply or communications installation.

Ground tent: A small tent usually constructed of vinyl coated canvas supported by a metal or plastic frame. Its purpose is to protect employees from inclement weather while working at buried cable pedestal sites or similar locations.

Grounded conductor: A system or circuit conductor which is intentionally grounded.

Grounding electrode conductor (grounding conductor): A conductor used to connect equipment or the grounded circuit of a wiring system to a grounding electrode.

Qualified employee: Any worker who by reason of training and experience has demonstrated the ability to safely perform assigned duties.

Telecommunications center: An installation of communication equipment under the exclusive control of an organization providing telecommunications service, that is located outdoors or in a vault, chamber, or a building space used primarily for such installations. Note: Telecommunication centers are facilities established, equipped and arranged in accordance with engineered plans for the purpose of providing telecommunications service. They may be located on premises owned or leased by the organization providing telecommunication service, or on the premises owned or leased by others. This definition includes switch rooms (whether electromechanical, electronic, or computer controlled), terminal rooms, power rooms, repeater rooms, transmitter and receiver rooms, switchboard operating rooms, cable vaults, and miscellaneous communications equipment rooms. Simulation rooms of telecommunication centers for training or developmental purposes are also included.

Telecommunication service: The furnishing of a capability to signal or communicate at a distance by means such as telephone, telegraph, police and fire alarm, community antenna television, or similar system, using wire, conventional cable, coaxial cable, wave guides, microwave transmission, or other similar means.

Vault: An enclosure above or below ground which personnel may enter, and which is used for the purpose of installing, operating, and/or maintaining equipment and/or cable which need not be of submersible design.