Whole-Villa Surge Arrestor (SPD) Wave-Reflection & Distance Coordinator

Deterministic Traveling-wave open-end voltage doubling (IEC 62305-4 / IEC 60364-5-53 >10m rule) + Uw insulation coordination engine (.pdf, .svg, .csv) built for DEHN, OBO Bettermann, ABB, Schneider Electric — zero-upload ephemeral Wasm RAM execution.

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