What type of installations does Article 590 specifically address?

Article 590 of the National Electrical Code (NEC) specifically addresses temporary installations. This article provides guidelines and requirements for the safe installation and use of electrical systems that are intended to be in place for a limited time, such as during construction, special events, or other temporary activities. It outlines the necessary provisions to ensure that these installations are both safely executed and in compliance with electrical safety standards.

The necessity for a specific article dedicated to temporary installations arises from the unique challenges and risks associated with non-permanent setups. These installations often need to adapt quickly to changing conditions and may not be in place long enough to justify more permanent solutions. Article 590 ensures that such installations still meet safety requirements, even with their temporary nature.

Other options, such as electric signs, elevators, and cranes, fall under different NEC articles that are more tailored to their specific characteristics and safety requirements. This distinction is important in understanding the scope and focus of the NEC as it pertains to various electrical applications.