705.95 Ampacity of Neutral Conductor National Electrical Code 2017 of New York State <https://up.codes/viewer/new_york/nfpa-70-2017> > 7 Special Conditions <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/7/special-conditions#7> > 705 Interconnected Electric Power Production Sources <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/7/special-conditions#705> > 705.95 Ampacity of Neutral Conductor <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/7/special-conditions#705.95> JUMP TO FULL CODE CHAPTER The ampacity <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#ampacity> of the neutral conductors <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#neutral_conductor> shall comply with either (A) or (B).
(A) Neutral Conductor for Single Phase, 2-Wire Inverter Output If a single-phase, 2-wire <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/8/communications-systems#wire> inverter <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/6/special-equipment#inverter> output is connected to the neutral and one ungrounded <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#ungrounded> conductor (only) of a 3-wire <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/8/communications-systems#wire> system or of a 3-phase, 4-wire <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/8/communications-systems#wire>, wye-connected system, the maximum load connected between the neutral and any one ungrounded <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#ungrounded> conductor plus the inverter <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/6/special-equipment#inverter> output rating shall not exceed the ampacity <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#ampacity> of the neutral conductor <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#neutral_conductor> . (B) Neutral Conductor for Instrumentation, Voltage, Detection or Phase Detection A conductor used solely for instrumentation, voltage <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#voltage_of_a_circuit> detection, or phase detection and connected to a single-phase or 3-phase interactive inverter <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#interactive_inverter>, shall be permitted to be sized at less than the ampacity <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#ampacity> of the other current-carrying conductors and shall be sized equal to or larger than the equipment grounding conductor <https://up.codes/viewer/new_york/nfpa-70-2017/chapter/1/general#grounding_conductor_equipment_egc> . On Mon, Jan 24, 2022 at 11:58 AM Foxfire Energy <[email protected]> wrote: > I’d start with the manufacturers recommendations > > Sent from my iPhone > > > On Jan 24, 2022, at 11:52 AM, jay <[email protected]> wrote: > > > > HI All, > > > > Where do I find in the code how to size a sense only neutral wire for GT > inverter. > > > > thanks > > > > jay > > > > peltz power > > > > > > _______________________________________________ > > List sponsored by Redwood Alliance > > > > Pay optional member dues here: http://re-wrenches.org > > > > List Address: [email protected] > > > > Change listserver email address & settings: > > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > > > There are two list archives for searching. When one doesn't work, try > the other: > > https://www.mail-archive.com/[email protected]/ > > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > > > List rules & etiquette: > > http://www.re-wrenches.org/etiquette.htm > > > > Check out or update participant bios: > > http://www.members.re-wrenches.org > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **[email protected] <[email protected]>* *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0> dba Vermont Solar Engineering 802.863.1202
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