NEC Code Compliance & Life Safety Disclaimer

1. Educational & Informational Purpose: The data, calculations, formulas, wire gauge charts, and technical schematics published on GridShieldPower.com are for educational, estimation, and preliminary planning purposes only.

2. Licensed Electrician Requirement: Installing backup generators, manual transfer switches, automatic transfer switches (ATS), mechanical interlock kits, power inlet boxes, and subpanels involves lethal electrical voltages (120V / 240V / 480V) and arc flash hazards. All permanent installations must be performed by a licensed, insured, and certified electrical contractor adhering to local municipal codes and the National Electrical Code (NFPA 70).

3. Anti-Backfeeding Compliance: Connecting a generator directly to a residential branch circuit without an approved mechanical or automatic transfer device is illegal under federal and state electrical codes and endangers the lives of utility line workers.

4. Carbon Monoxide Exhaust Hazard: Portable generators emit odorless, lethal carbon monoxide (CO) gas. Never operate any combustion engine indoors, in garages, or closer than 20 feet to any window, door, or ventilation opening.