NEC Article 513 dictates the electrical safety needs for aircraft hangers. Learn more about the ground fault protection guidelines these facilities require.

National Electrical Code Article 513 details the guidelines for safe electrical wiring in an aircraft hanger, which may contain flammable and/or combustible liquids. It includes regulations for hazardous location designations, warning labels, aircraft battery charging, portable equipment usage, and more. One subsection, NEC 513.12, details what ground fault protection requirements for these areas.

NEC Article 513.12 states that aircraft hangers have to include ground fault protection in accordance with NEC 210.8(B). This means that all 125-volt and 250-volt receptacles supplied by single-phase branch circuits up to 50 Amps, and all receptacles supplied by three phase branch circuits supplying up to 100 Amps need Class A (5 mA +/- 1 trip level) ground fault protection.

National Electrical Code Article 513 ensures the safe use of electrical equipment in and around airplanes within a hanger. Like many other NEC Articles, it references NEC 210.8(B), which mandates Class A ground fault circuit interrupter (GFCI) protection where it is required.