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NFPA 70 (NEC) — Article 620
Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts
The National Electrical Code article for elevator wiring: conductors, traveling cables, disconnecting means, overcurrent protection, machine room and pit power and lighting, grounding and emergency or standby power.
Check which edition your jurisdiction has adopted before you work to it.
Who Uses It
Electricians, elevator contractors, electrical engineers and electrical inspectors.
How It's Organized
| Conductors & wiring | Conductor sizing, wiring methods and installation of conductors |
|---|---|
| Traveling cables | Types, supports and installation of traveling cables |
| Disconnecting means & control | Main line disconnect, its location and lockout |
| Overcurrent protection | Protection and selective coordination |
| Machine rooms, control rooms & pits | Lighting, receptacles and spaces |
| Grounding | Equipment grounding of elevator equipment |
| Emergency & standby power | Power sources and regenerated power |
Common Questions This Covers
| Main line disconnect | Disconnecting means |
| Traveling cable | Traveling cables |
| Pit and machine room receptacles / GFCI | Machine rooms and pits |