Course Content
Article 200 – Use and Identifications of Grounded Conductors
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Article 210 Branch Circuits
Article 210 of the National Electrical Code (NEC) covers the requirements for branch circuits, which are the circuits that supply power to the outlets, lighting fixtures, and other loads in a building. In this lesson, we will discuss the key requirements of Article 210.
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Article 215 Feeders
Article 215 of the National Electrical Code (NEC) covers the requirements for feeders, which are the circuits that supply power from the service equipment to the branch circuits in a building. In this lesson, we will discuss the key requirements of Article 215.
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Article 230 Services
In summary, Article 230 provides specific requirements for the installation of service conductors and equipment to ensure safe and reliable delivery of electrical power to buildings and structures.
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Article 242: Overvoltage Protection
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NEC Chapter 2 Wiring and Protection
About Lesson

Article 250 of the National Electrical Code (NEC) covers the requirements for grounding and bonding of electrical systems. Grounding is the process of connecting an electrical system to the earth or a conductive body that serves in place of the earth. Bonding is the process of connecting two or more conductive objects together to ensure electrical continuity and to provide a low-impedance path for fault current.

Summary:

Article 250 covers the following topics related to grounding and bonding:

  1. General requirements: This section outlines the general requirements for grounding and bonding, including the types of systems that must be grounded and bonded, and the methods for establishing an effective ground.

  2. System grounding: This section covers the grounding of the electrical supply system, including the grounding of transformers, generators, and service equipment.

  3. Grounding electrodes: This section covers the types of grounding electrodes that can be used, and the requirements for their installation and connection.

  4. Grounding conductors: This section covers the sizing, installation, and connection of grounding conductors, which provide the path for fault current to flow during a fault condition.

  5. Bonding: This section covers the bonding of electrical equipment and enclosures, including the requirements for bonding conductors and the types of bonding methods that can be used.

  6. Equipment grounding: This section covers the requirements for equipment grounding, including the use of equipment grounding conductors and the requirements for grounding of electrical equipment.

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