NEC 430.1 / NFPA 90A / high-rise office Electrical Plans
What it means on the job
Motorized dampers and motorized shades shown on the high-rise office electrical plans must be connected to the appropriate branch circuits with proper control wiring. Unconnected motorized dampers can prevent proper smoke control in a high-rise fire event, creating a life-safety hazard.
Tested in 1 CraftIQ puzzle
- whats-wronghigh-rise office Office TI: Service Interruption and Temporary Power
Related NEC sections
NEC 406.9(C)
Receptacles are not permitted within or directly over the bathtub or shower space (within 3 ft horizontally and 8 ft vertically of the threshold).
NEC 408.4 / NFPA 70E 205.2
A single-line diagram showing the electrical distribution system must be available to workers for safe operation and troubleshooting. Without it, workers cannot identify all energy sources, which is essential for lockout/tagout procedures.
NEC 408.4(A)
Every panelboard must have a legible circuit directory identifying each circuit. On a commercial TI project, unlabeled panels are an immediate inspection failure and create a safety hazard for other floor tenants and maintenance personnel.
NEC 430.102(B)
A disconnecting means must be located within sight of the motor it controls so a technician can lock it out for service. None is provided here.
NEC 430.32
Each motor must have overload protection to prevent damage from sustained overcurrent. Overloads are separate from the branch circuit short-circuit protection and are typically sized at 115-125% of motor FLA.
NEC 430.72
A motor control circuit tapped from the branch-circuit conductors must be protected against overcurrent per the control-circuit rules; an unprotected tap is a fire risk.
CraftIQ explanations are original educational commentary written in trade language and verified against the cited standards. Always confirm requirements against the code edition adopted by your jurisdiction — this is training material, not a substitute for the code book or your AHJ.