Multi-String Solar PV Combiner Reverse-Backfeed Fault, gPV Fuse & Polarized-Breaker Auditor

Deterministic IEC 62548 / NEC 690.9 reverse string fault current I_rev = 1.25 * (N_p - 1) * I_sc_STC vs module I_R rating & gPV fuse minimum-melting temperature-derated window engine (.json, .csv, .pdf) built for Littelfuse Solar, Mersen gPV, ABB S800PV, Noark / ETI — zero-upload ephemeral Wasm RAM execution.

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