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Up to and including the 2011 NFPA Document #70, defined as the NEC (National Electrical Code), There are no requirements for Arc Flash, labeling in Residential Wiring systems. It should be noted that at the release of the 2011 NEC, there
are many new requirements for Arc Flash labeling as well as Available Fault Current in both commercial and industrial electrical installations; and direction
labeling to distribution source Overcurrent Protective Devices, including primary field located transformer disconnect labeling. New this year too is labeling requirements for both Fire Alarm Control Panels and Industrial Control Panels,
Center Tapped Delta Systems (High Leg), and Motor Control Centers. 8-22-2011
B. Head, Certified Electrical Inspector, All Structures.
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