Intry Verified receipt
Is the Intry Neutral Current-Carrying Conductor accurate and NEC compliant?
The provenance receipt for the Intry Neutral Current-Carrying Conductor: 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: Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 27477 automated checks re-derive and source-check the numbers against the cited subdivision of NEC 310.15(E), the 310.15(F) exclusion and the printed rows of Table 310.15(C)(1) before each deploy. 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 310.15(E), neutral conductor · NEC 2023 310.15(F), grounding or bonding conductor · NEC 2023 Table 310.15(C)(1) and its footnote · NEC 2023 Table 310.16, Equation 310.15(B)(1) and 110.14(C) (NEC 2023). Reused verbatim from the locked engine, never re-written for this page.
- Checked
- Before any release, an automated check rebuilds the calculated figures from the locked engine that produces them and holds each one against the source it cites, so a number answers to its source and not merely to itself. As of the current build that suite holds 27477 checks, and this page has to clear them too. This is our own deterministic gate, not a third-party audit.
- Runnable
- A reference engine behind the published numbers on this site. Runnable access is offered on the calculators exposed at the Intry MCP endpoint.
- Final say
- Your AHJ has final say. NEC 310.15(E)(3) turns on whether the major portion of the load is nonlinear and the code prints no percentage for that, so this tool asks you for it rather than supplying a threshold of its own.
Frequently Asked Questions
Is the Intry Neutral Current-Carrying Conductor accurate and NEC compliant?
Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 27477 automated checks re-derive and source-check the numbers against the cited subdivision of NEC 310.15(E), the 310.15(F) exclusion and the printed rows of Table 310.15(C)(1) before each deploy. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.