Which type of installation is considered permanent by the NEC?

The National Electrical Code (NEC) defines a permanent installation as one that is fixed in place and intended for long-term use. This means that the fixture is securely installed and not meant to be easily removed or relocated. These fixtures are generally hardwired, secured to structures, or anchored in a way that demonstrates their intended permanence in a building or space.

In contrast, fixtures that can be easily unplugged, designed for temporary decor, or used only during specific events are meant for flexibility and might not adhere to the same safety and installation requirements as a permanent fixture. Such temporary installations typically do not require the same level of durability, electrical connections, or adherence to long-term safety standards that permanent fixtures are accountable for under the NEC. Thus, the distinction of permanency is crucial for ensuring the safety and reliability of electrical installations in various environments.