Electrical Installation Management & Single-Line Schematics: Swiss NIN 2020, SiNa Protocols & Art. 24 NIV
Operational guide for Swiss electrical contractors, switchgear builders, and certified electrical inspectors: low-voltage installations under NIN 2020 / SN 411000, Safety Verification (SiNa) under NIV Art. 24, ESTI inspection directives, and BKP 232.