| 280.58 High Voltage Cables and Wires (601-15,000V), Solid and Stranded, Single and Multiconductor |
| 280.75 Ties and Anchors, Cable and Wiring |
| 280.80 Underground Cables and Wires, Solid and Stranded, Single and Multiconductor, Aluminum and Copper: Types UF, URD, USE, XLP, etc. |
| 280.90 Weatherproof Cables and Wires, Solid and Stranded, Single and Multiconductor, Aluminum and Copper: Types RR, WP, etc. |
| 280.95 Wire and Cable (Not Otherwise Classified) |
| 285.03 Arresters, Lightning |
| 285.04 Back-up Systems, Battery Operated (Emergency) |
| 285.05 Beacon Light Systems Complete For Buildings, Roadside, etc. (See Class 120 for Marine Beacons) |
| 285.07 Bulb and Fixture, Changer/Remover |
| 285.08 Bus Bars, Duct, and Accessories |
| 285.09 Cabinets, Electrical Service Entrance |
| 285.10 Cable Accessories: Clamps, Clasps, Clips, Closures, Reels, Splices, Wrappings, etc. |
| 285.11 Capacitors, Motor Starting and Running |
| 285.14 Circuit Breakers, Load Centers, Boxes, and Panelboards |
| 285.15 Coatings, Protective, Electrical |
| 285.18 Conduit and Fittings, Cast Iron and Malleable Iron |
| 285.19 Conduit and Fittings, Plastic/Pvc |
| 285.21 Conduit and Fittings, Aluminum |
| 285.22 Conduit and Fittings, Rubber |
| 285.23 Conduit Fittings, Steel: Boxes, Bushings, Clamps, Connectors, Covers, Locknuts, Straps, etc. |
| 285.24 Conduit and Fittings, Brass, Bronze, and Copper |
| 285.25 Current Collection Equipment and Accessories, Electrical |
| 285.26 Conduit, Steel |
| 285.27 Control Devices, Lighting (Including Photocells, Multiple Relays, Lighting Contactors) |
| 285.28 Cutouts, Pole Line Type |
| 285.30 Dielectric Tools, Tool Handles, Hydraulic Hose and Fittings (High ANSI Rated) |
| 285.34 Fuses, Fuse Blocks and Holders, Links, etc. |
| 285.40 Grounding Rods and Fittings |
| 285.54 Lighting Fixtures, Indoor: All Kinds and Parts (Including Lampholders and Recycled Types) |
| 285.55 Lighting, Area, Pole or Standard Mounted (Parking Lots, etc.) |
| 285.56 Lighting Fixtures, Outdoor: Floodlights, Spotlights, Yard Lights, and all other Weatherproof Fixtures (Except Streetlights) (Including Recycled Types) |
| 285.58 Lighting Units, Emergency, Battery Operated; and Batteries |
| 285.64 Motor Controllers, Contactors, Push Button Stations, Relays, Safety Switches, Starters, Coils and Brushes |
| 285.66 Monitors and Related Equipment, Power Line |
| 285.67 Power Systems Switchgears and Related Accessories |
| 285.69 Misc. Electrical Equipment and Supplies (Not Otherwise Classified) |
| 285.74 Pole Line Hardware: Anchors, Arms, Bolts, Braces, Brackets, Clevises, Connections, Insulators, Plates, Pole Steps, Racks, Rods, Shackles, Straps, Thimbles, Washers, etc. (See 765-95 for Wire Rope Accessories) |
| 285.76 Street and Highway Lighting Luminaires, Accessories and Parts |
| 285.78 Structural Supports and Racks, Mechanical Type: Angles, Braces, Brackets, Channels, Clips, Fittings, Spring-Nuts, etc. |
| 285.79 Switches, Parts and Accessories (Miscellaneous) |
| 280.16 Bare Cables and Wires: Type ACSR, Bare Copper, Bare Aluminum, etc. |
| 280.24 Building Cables and Wires, Single and Multiconductor: Types NM, THWN, TW, THW, THHN, XHHW, RHW, RR, ROMEX, etc. |
| 280.28 Cathodic Cable (Protection) |
| 280.40 Guy Wires and Cables: Guy Strand, SM, HS, EHS, etc. |
| 285.82 Transformer Equipment, Type 1 KVA and less |
| 285.84 Transformers, Transmission Line Type |
| 285.85 Transformers, Dry Type, For Indoor or Outdoor Applications |
| 285.86 Transformers, Power Distribution (Including Fluid Filled, Pad and Pole Mount) |
| 285.87 Transformers, Power, Electric Sub-Station |
| 285.92 Wire and Cable Markers and Marker Ties |
| 285.93 Wire Molding, Raceways, Accessories, and Fittings |
| 285.95 Wiring Devices: Adapters, Caps, Connectors, Extension Cords, Fluorescent and HP Starters, Outlets, Plates and Covers, Plugs, Receptacles, Safety Cord Lock, Switches, Terminals, etc.(Incl. Recycled Electrical Products, Supplies) |
| 285.96 Uninterruptible Power Supplies |
| 345.18 Emergency Showers and Wash Stations |
| 345.22 Fall Protection Equipment and Accessories (For the Climber's Protection from Falls (See 445-83 for Pole and Tree Climbing Equipment) |
| 345.24 Fireproof Curtains |
| 345.30 First Aid Blankets, Stretchers, etc. |
| 345.32 First Aid Cabinets, Kits, and Refills |
| 345.48 Gloves, Safety: Electrician's, Lineman's, etc. (Including Sleeves) |
| 345.56 Hats and Helmets, Safety (Incl. Fire Helmets) |
| 345.64 Head, Ear, Eye and Face Protection |
| 345.92 Vest, Safety |