W-0-821la Outlet-Boxes; Steel, Cadmiumor Zinc-Coated, with Covers and Accessories. W-P-13la Panelboards; Equipped With Automatic Circuit-Breakers W-R-36 Raceways and Fittings; Metallic, Underfloor W-R-15la Receptacles (Convenience-Outlets), Adapters, Attachment-Plug-Caps, Cord-Connector-Bodies, CurrentTaps, Motor-Base-Plugs, and PlugBodies; W-S-893 Switches; 250-volts Snap, Multiple-Type and Combination Devices, Flush-Type With Wall Plates W-S-896 Switches; Snap, Single-Unit, Interchangeable Flush-Type With Wall Plates HH-T-101a Tape; Friction HH-T-11llec Tape; Rubber (Natural and Synthetic} WW-C -58la Conduit; Insulating Underwriters' Steel, Rigid, Laboratories, Zinc-Coated Inc.: Standard for Cabinets and Boxes Standard for Industrial Control Equipment Standard for Thermoplastic-Insulated Wires Standard for Rubber-Covered Wires and Cables National Board of Fire Underwriters: National Electrical Code, Wiring and Apparatus Standard for Electric National Electrical Manufacturers Association: Industrial Control Standards 16-2