The 2026 National Electrical Code (NEC) introduces a significant shift in electrical design by prioritizing real-time power flow over traditional, often oversized, theoretical worst-case calculations.

Explanation: NEC 250.66 (B) limits the required conductor to #4 AWG copper. Lupacchino is a senior design engineer with Gaylor Electric, Inc. in Noblesville, Ind. and serves as an alternate on NEC ...

November of 2025 ushered in a new Code cycle and introduced the 2026 edition of the National Electrical Code. The 2026 NEC brought several significant changes and it’s important for engineers and ...