§ 50.01 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   ACCESSIBLE. (As applied to wiring methods) Not permanently closed in by structure or finish of the building; capable of being removed without disturbing the building structure or finish. (As applied to equipment.) Admitting close approach because not guarded by locked doors, elevation, or other effective means. (See READILY ACCESSIBLE.)
   APPROVED. Acceptable to the Superintendent of the Light Department of the city.
   BRANCH CIRCUIT. That portion of a wiring system extending beyond the main cut-out switch and fuse box.
      (1)   APPLIANCE BRANCH CIRCUIT. A circuit supplying energy either to permanently wired appliances or to attachment plug receptacles, that is, appliance or convenience outlets, or to a combination of permanently wired appliances and additional attachment plug outlets on the same circuits; such circuits to have no permanently connected lighting fixtures.
      (2)   COMBINATION LIGHTING AND APPLIANCE BRANCH CIRCUIT. A circuit supplying energy to both lighting and appliance outlets.
      (3)   LIGHTING BRANCH CIRCUIT. A circuit supplying energy to lighting outlets only.
   BUILDING. A structure which stands alone or which is cut off from adjoining structures by unpierced fire walls.
   CABINET. An enclosure designed either for surface or flush mounting, and provided with a frame, matt, or trim in which swinging doors are hung. (See CUTOUT BOX.)
   CABLE. A stranded conductor (single-conductor cable) or a combination of conductors insulated from one another (multiple-conductor cable).
   CIRCUIT BREAKER. A device designed to open under abnormal conditions a current-carrying circuit without injury to itself. The term applies only to the automatic type designed to trip on a predetermined overload of current.
   CONCEALED. Rendered inaccessible by the structure or finish of the building. Wires in concealed raceways are considered concealed, even though they may be accessible by withdrawing them.
   CONDUCTOR. A wire or cable or other form of metal suitable for carrying current.
   CUTOUT BOX. An enclosure designed for surface mounting and having swinging doors or covers secured directly to and telescoping with the walls of the box proper.
   ENCLOSED. Surrounded by a case which will protect a person from accidental contact with live parts.
   EXPOSED. Accessible; not concealed.
   GUARDED. Covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers or casings, barriers, walls or screens, mats, or platforms to remove the liability of dangerous contact or approach by persons or objects to a point of danger.
   ISOLATED. Not readily accessible to persons unless special means for access are used.
   OUTLET. A point on the wiring system at which current is taken to supply fixtures, lamps, heaters, motors, and current consuming devices generally.
   QUALIFIED PERSON. One familiar with the construction and operation of electrical apparatus and the hazards involved.
   READILY ACCESSIBLE. Capable of being reached quickly, for operation, removal, or inspection, without requiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portable ladders, chairs, and the like.
   SERVICE. That portion of the supply conductors which extend from the street main or duct or transformer to the service switch or fuse box of the building supply.
   SPECIAL PERMIT. A written consent of the Superintendent of the Light Department of the city.
   WATERPROOF. So constructed or protected that moisture will not interfere with its successful operation.
   WATERTIGHT. So constructed that water will not enter the enclosing case.
(1977 Code, § 3-15-1)