Which article discusses requirements for electrical installations?

The correct choice regarding the requirements for electrical installations is based on the focus of the specific articles in the National Electrical Code (NEC). Article 110 specifically addresses the requirements for electrical installation, highlighting general requirements for wiring methods and materials, as well as the necessary conditions for ensuring safety and compliance.

This article lays out the standards for the installation practices, including workspace dimensions, access to equipment, and clarity in wiring methods, all of which are vital for ensuring that electrical systems function safely and effectively. The provisions included in Article 110 also help in preventing accidents and ensuring proper maintenance of electrical installations.

In contrast, other articles such as Article 90 primarily provide general overview and purpose for the NEC, Article 100 defines specific terminology used throughout the code, and Article 240 deals with overcurrent protection specifically. These articles, while important, do not set the detailed requirements for the actual installation of electrical systems like Article 110 does.