Which NEC article addresses grounding and bonding for service installations?

The determination that Article 250 addresses grounding and bonding for service installations is anchored in the National Electrical Code's organization. Article 250 is specifically dedicated to the requirements for grounding and bonding, which are critical for ensuring the safety and functionality of electrical systems.

Grounding serves the important purpose of providing a path for fault currents, reducing the risk of electrical shock and fire hazards. Bonding helps to ensure that all electrical components, equipment, and structures have a common ground potential, thus minimizing the risk of voltage differences that could lead to dangerous situations.

While other articles, such as Articles 210, 220, and 300, cover important aspects of electrical installations like branch circuits, load calculations, and general requirements for wiring methods respectively, none focus on grounding and bonding as thoroughly as Article 250. This article encompasses key provisions related to grounding electrode systems, grounding conductors, and bonding of equipment, making it indispensable for safe service installations in any electrical system.