Article 110 - Requirements for Electrical Installations

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Article 110 - Requirements for Electrical (A) and (B) - Available Fault Current (New)Code Language. (A) Field Marking.(B) equipment in other than dwelling units shall be legiblymarked in the field with the maximum available fault current. The field marking(s)shall include the date the fault current calculation was performed and be ofsufficient durability to withstand the environment modifications to the electricalinstallation occur that affect the maximum available faultcurrent at the service, the maximum available fault currentshall be verified or recalculated as necessary to ensure theservice equipment ratings are sufficient for the maximumavailable fault current at the line terminals of theequipment. The required field marking(s) in (A) shallbe adjusted to reflect the new level of maximum availablefault : The field marking Requirements in (A) and (B) shall notbe required in industrial Installations where conditions of maintenance andsupervision ensure that only qualified persons service the of Change:This is intended to help Code enforcement authorities in determining compliancewith the provisions of Sections - Interrupting Rating, and - Circuit Impedance and FaultCurrent33,092AmperesDate Calculated03

Article 110 - Requirements for Electrical Installations 1 110.24(A) and (B) - Available Fault Current (New) Code Language. (A) Field Marking. (B) Modifications.

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