Intry Verified receipt

Is the Intry Outdoor HVAC GFCI Requirement (NEC 210.8(F)) accurate and NEC compliant?

The provenance receipt for the Intry Outdoor HVAC GFCI Requirement (NEC 210.8(F)): the exact authority its values derive from, the edition they are keyed to, who has final say, and what our automated checks hold them against, rebuilt from their cited source.

Short answer: It computes from the NEC sections named below (NEC 2023), and our automated checks hold its answers against values written from those sources for the cases the checks cover, not for every input you can enter. Whether an installation is NEC compliant is decided by the inspector, not by a calculator. This answer holds only for the jurisdictions whose amendments we have read from their own primary documents. Everywhere else the tool refuses, and your AHJ has the final say in every case. Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 30639 automated checks, one suite for the whole site rather than a per-tool count, re-derive the numbers before each deploy from the tables this site transcribed from the cited NEC section together with your state's own amendment to it. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.

The receipt

Calculated from
NEC 2023 and NEC 2020, 210.8(F), read from the printed book · TIA 20-19 and TIA 23-3, the lineage of the exception itself · Each state's own amendment to 210.8(F), where we hold it · Each state's own current-code listing, for what is in force today · The compiled adoption dataset, published as the weaker source (NEC 2023). Reused verbatim from the locked engine, never re-written for this page. The documents it rests on are listed in the source receipt on the tool page.
Edition
NEC 2023
Checked
Before any release, an automated check runs the locked engine that produces these figures and holds its answers against values written from the source it cites, so a checked number answers to its source and not merely to itself. The check covers the cases someone wrote a check for, not every input the tool accepts: it tells you where a number comes from, and it is not a proof of every value. As of the current build that suite holds 30639 checks, and this page has to clear them too. This is our own deterministic gate, not a third-party audit.
Runnable
Exposed at the Intry MCP endpoint. An AI assistant can run this calculator, and before each release an automated check confirms the answer it returns is identical to the one the website's own engine produces.
Final say
This answer holds only for the jurisdictions whose amendments we have read from their own primary documents. Everywhere else the tool refuses, and your AHJ has the final say in every case.

Frequently Asked Questions

Is the Intry Outdoor HVAC GFCI Requirement (NEC 210.8(F)) accurate and NEC compliant?

It computes from the NEC sections named below (NEC 2023), and our automated checks hold its answers against values written from those sources for the cases the checks cover, not for every input you can enter. Whether an installation is NEC compliant is decided by the inspector, not by a calculator. This answer holds only for the jurisdictions whose amendments we have read from their own primary documents. Everywhere else the tool refuses, and your AHJ has the final say in every case. Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 30639 automated checks, one suite for the whole site rather than a per-tool count, re-derive the numbers before each deploy from the tables this site transcribed from the cited NEC section together with your state's own amendment to it. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.


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