DoElect

The following earthing terms are defined according to NEC standard (National Electrical Code) which is a foundational pillar of NFPA 70 (National Fire Protection Authority). Having a good understanding of the terms used within Article 250 of NEC is critical to understanding the grounding and bonding requirements within the NEC. The following definitions are commonly used throughout Article 250, and knowing them is essential to installing an effectively grounded and bonded electrical system. Ground - The earth Grounded (Grounding) - Connected (connecting) to the ground or to a conductive body that extends the ground connection. An example of a conductive body that extends the ground connection is the first 5 feet of a water pipe entering a building. It is permitted to connect at this point even though it is not a grounding electrode, as the first 5 feet of the pipe are not physically in contact with the earth. Grounded Conductor - A system or circuit conductor that is intentionally gr...