Understanding NEC Article 400, Table 400.4: Complete Technical Guide to Flexible Cord and Cable Specifications
National Electrical Code (NEC) Article 400 establishes comprehensive requirements for flexible cords and flexible cables used in electrical installations throughout North America. According to the National Fire Protection Association (NFPA), Article 400 specifically covers general requirements, applications, and construction specifications for flexible cords and flexible cables rated up to 600 volts maximum, with special provisions for electric vehicle cables rated up to 1000 volts maximum.