Which article addresses phase converters?

Article 455 of the National Electrical Code (NEC) specifically addresses phase converters. Phase converters are devices used to convert single-phase electrical power to three-phase power, which is often necessary for running three-phase motors and equipment in settings where only single-phase power is available. The code outlines the requirements for the installation and use of these devices to ensure safety and proper operation.

The provisions in Article 455 cover aspects such as the types of phase converters, their ratings, installation requirements, and the safety protocols that must be followed to ensure they function optimally and safely. This includes considerations like overcurrent protection and the specific wiring methods to be used.

Understanding the requirements laid out in Article 455 is essential for ensuring that phase converters are installed properly and comply with safety standards, which is critical for preventing electrical hazards and ensuring the reliable operation of three-phase equipment.