Miscellaneous Equipment and Limited-Energy Systems
Signs (600), Elevators (620), Welders (630), Class 1/2/3/4 Circuits (722–726), Fire Alarm (760) and Communications (800)
NFPA 70 National Electrical Code, 2023 edition · Reviewed 2026-09-21
Two Florida blueprint sub-bullets under Special Occupancies, Equipment & Conditions live here: Miscellaneous Equipment (signs, elevators, welders) and Data Processing and Communications Equipment (the limited-energy and fire alarm circuits of Chapter 7 and the communications rules of Chapter 8). In the 2023 edition Chapter 7 is arranged as: 722 cables for power-limited and fault-managed circuits, 724 Class 1 power-limited circuits, 725 Class 2 and Class 3 circuits, 726 Class 4 fault-managed power (new in 2023), 760 fire alarm systems; Chapter 8 opens with 800 general requirements for communications systems. Written from the 2023 text (the Florida edition; 2023 section numbers throughout).
1. Electric signs and outline lighting — Article 600
- Listing (600.3): fixed, mobile or portable signs, section signs, outline lighting, PV-powered signs and retrofit kits are listed and labeled and installed per the listing (field-installed skeleton tubing and outline lighting made of listed luminaires wired per Chapter 3 excepted).
- The sign outlet (600.5(A)): each commercial building and each commercial occupancy accessible to pedestrians gets at least one sign outlet at each entrance to each tenant space, on a branch circuit rated at least 20 A that supplies no other load (sign controllers excepted; not required at delivery/service entrances).
- Ratings (600.5(C)): sign branch circuits are continuous loads; neon → not over 30 A; all other signs and outline lighting → not over 20 A.
- Wiring (600.5(D)): the supply terminates in the sign, an enclosure, a box, a conduit body or a panelboard; listed sign enclosures may be pull/junction boxes up to 600 V for adjacent signs, outline lighting and the sign's floodlights; poles may enclose the supply conductors.
- Disconnect (600.6): every sign/outline lighting system/skeleton tubing (and its feeder or branch circuit) is controlled by an externally operable switch or breaker that opens all ungrounded conductors and controls no other load. Exceptions: **exit directional signs inside a buildin
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