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Understanding the 120% Rule: The Foundation of Safe Solar Installations The term "125 Percent Rule" is commonly misused in solar discussions. The correct and critical safety provision in the US National Electrical Code (NEC) is the 120% Rule (NEC 705.12(B)). This regulation govern..

The 120% Rule for Solar: Ensuring Electrical Safety in PV Installations As solar energy adoption accelerates globally, understanding critical electrical safety standards like the 120% Rule becomes essential for homeowners, installers, and develop..