What does NEC Article 250 cover?

NEC Article 250 specifically addresses grounding and bonding requirements in electrical installations. Grounding is the process of connecting electrical systems to the earth, which helps prevent electrical shock and protects equipment from damage due to lightning strikes and power surges. Bonding refers to the connection between various conductive parts to ensure that they have a low-resistance path to ground.

This article outlines necessary practices for safely grounding electrical systems, including the installation of grounding electrodes, grounding conductors, and the proper methods of bonding services and equipment. The provisions set forth in this article are critical for ensuring the integrity and safety of electrical systems, reducing the risk of shock hazards and electromagnetic interference.

The information provided in Article 250 is essential for electrical contractors and professionals who must ensure that their work complies with safety standards and codes established by the National Electrical Code (NEC). Understanding these grounding and bonding requirements is vital for all electrical installations, making this article a cornerstone of electrical safety and performance.