Which regulation pertains specifically to fixture wires?

The regulation that pertains specifically to fixture wires is Article 402. This article provides guidelines for the installation, application, and specifications regarding fixture wires, which are typically used to connect lighting fixtures to the supply source. It covers essential aspects such as wire types, sizing, and the environment in which these wires can be installed safely.

Fixture wires are designed for use within fixtures and are usually insulated to handle the specific conditions they will encounter, such as heat and exposure to potentially damaging elements inside lighting fixtures. Article 402 ensures that these wires are utilized correctly to maintain safety standards and comply with the National Electrical Code. Understanding the requirements of this article is crucial for electricians and professionals dealing with residential and commercial lighting systems, as it helps ensure both efficiency and safety in electrical installations.