filament lamp loads and shall carry the "T" marking of the Underwriters' Laboratories, Inc. Where switches with pilot lights are indicated on the drawings, the combinations shall consist of a switch, as specified above, with a yokemounted and candelabra-base socket rated at 75 watts, 125 volts, and fitted with a glass or plastic jewel. A clear 6-watt lamp shall be furnished and installed in each pilot switch. Jewels for use with switches controlling motors shall be colored green and for other purposes red. The capacity ratings of toggle switches for various circuit loads shall be as follows: 16-27. a. For loads up to 800 watts - 10 amperes. b. For loads from 800 to 1500 watts - 20 amperes. MOUNTING HEIGHT OF EQUIPMENT: No equipment or ap- pliances of any nature shall be so installed that the topmost operating part shall be over 6 feet 6 inches above the floor or platform from which it is to be operated or worked upon, 16-28, unless instructed otherwise by Engineer. LIGHTING FIXTURES: This Contractor shall furnish and install all lighting fixtures as described on the draw- ings. All fluorescent fixtures shall be equipped with higr power factor ballasts. 16-29. LIGHTING PANELS: This Contractor shall furnish, in- stall and completely connect all lighting panels as shown on the drawings. Panels shall be flush mounted, front operated, single door safety type. All panelboard cabinets shall be constructed of standard code gauge steel and shall be formed as to prevent any buckling or weaving. A minimum of a 4-inch wiring gutter shall be provided at sides and ends with additional 2-inch gutter space for feeder condul.:. 2-1/2 inch or larger. Trim shall be formed in one piece o. code gage steel, all edges and corners being cut true and smooth and securely fastened to the cabinet. Door shall be equipped with card (and with a typewritten card installed therein), snap catch, lock and two keys and shall have no appreciable crack around either sides or ends. be riveted to door and trim. a. Hinges sha. Lighting panelboards shall be Square D Company Type NAB-4 or NAB-4AB, Trumbull Electric Manufacturing Company Type NAB, or equal. This Contractor shall refer to th Single Line Diagram and the Panel Schedules on the drawings for sizes of main breakers, where required in panelboards, and the sizes of branch circuit breakers. 16-11 All panelboards