What does Article 314 primarily address?

Article 314 of the National Electrical Code primarily addresses the installation of outlet boxes, junction boxes, conduit bodies, and the proper methods for their support, accessibility, and space requirements. This article is essential as it ensures that the electrical boxes used in residential and commercial electrical systems are safely and effectively installed to protect the wiring and facilitate safe electrical connections.

The focus is on how these boxes and conduits must be installed to meet safety standards, how to calculate the volume of electrical boxes for accommodating wires and devices, and ensuring that these installations provide accessibility for maintenance and future modifications. The regulations outlined in Article 314 are critical in preventing issues such as overheating, which can lead to fire hazards, and ensuring that electrical systems function reliably.

The other options are relevant to various aspects of electrical installation but do not pertain specifically to the core subject of Article 314. Proper insulation techniques, wiring colors, and electrical wire types are important topics addressed in different articles of the NEC, but they fall outside the scope of what Article 314 covers, which is specifically oriented toward box and conduit body installation.