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705.95 Ampacity of Neutral Conductor
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(A) Neutral Conductor for Single Phase, 2-Wire Inverter Output
If a single-phase, 2-wire inverter output is connected to the neutral and one ungrounded conductor (only) of a 3-wire system or of a 3-phase, 4-wire, wye-connected system, the maximum load connected between the neutral and any one ungrounded conductor plus the inverter output rating shall not exceed the ampacity of the neutral conductor.
(B) Neutral Conductor for Instrumentation, Voltage, Detection or Phase Detection
A conductor used solely for instrumentation, voltage detection, or phase detection and connected to a single-phase or 3-phase interactive inverter, shall be permitted to be sized at less than the ampacity of the other current-carrying conductors and shall be sized equal to or larger than the equipment grounding conductor.
Related Code Sections
705.95 Special Conditions, Ampacity of Neutral Conductor
The ampacity of the neutral conductors shall comply with either (A) or (B ...
(2) Wiring and Protection, Ampacity
The neutral conductor shall be of sufficient ampacity for the load imposed on the conductor but not less than 331/3 percent of the ampacity ...
(C) Special Equipment, Ampacity of Grounded or Neutral Conductor
shall not exceed the ampacity of the grounded or neutral conductor ...
(C) Special Conditions, Ampacity of Grounded or Neutral Conductor
the ampacity of the grounded or neutral conductor ...
(B) Wiring and Protection, Common Neutral
The ampacity of the neutral conductor shall not be less than the maximum net calculated load current between the neutral conductor and all ungrounded ...