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600 electric Signs and Outline Lighting

604 Manufactured Wiring Systems

605 Office Furnishings

610 Cranes and Hoists

620 Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts

625 Electric Vehicle Power Transfer System

626 Electrified Truck Parking Space

630 Electric Welders

640 Audio Signal Processing, Amplification, and Reproduction Equipment

645 Information Technology Equipment

646 Modular Data Systems

647 Sensitive Electronic Equipment

650 Pipe Organs

660 X-Ray Equipment

665 Induction and Dielectric Heating Equipment

668 Electrolytic Cells

669 Electroplating

670 Industrial Machinery

675 Electrically Driven or Controlled Irrigation Machines

680 Swimming Pools, Fountains, and Similar Installations

682 Natural and Artificially Made Bodies of Water

685 Integrated Electrical Systems

690 Solar Photovoltaic (PV) Systems

691 Large-Scale Photovoltaic (PV) Electric Supply Stations

692 Fuel Cell Systems

694 Wind Electric Systems

695 Fire Pumps