National Electrical Code

The National Electrical Code (NEC) Article 100 provides definitions for terms used throughout the code to ensure a common understanding of the language and technical terminology used in the code. The definitions in Article 100 are essential for correctly interpreting and applying the requirements of the NEC.

Here are some key definitions in NEC Article 100:

  1. Ampacity: The current-carrying capacity of a conductor expressed in amperes.
  2. Conductor: A wire, cable, or busbar used for conducting electricity.
  3. Ground Fault: An unintentional connection between a conductor and the ground or equipment frame.
  4. Grounding Conductor: A conductor used to connect the equipment grounding conductor or electrode to a grounding electrode.
  5. Overcurrent: An electrical current that exceeds the ampacity of a conductor or the rated capacity of equipment.
  6. Service: The conductors and equipment necessary to deliver electrical power from the serving utility to the wiring system of the premises served.
  7. Voltage: The electrical potential difference between two points in a circuit, expressed in volts.
  8. Continuous Load: A load that is expected to continue for three hours or more.

Overall, NEC Article 100 provides essential definitions that are used throughout the code to ensure that the requirements are interpreted and applied consistently. Electricians, engineers, and other professionals working with electrical systems should be familiar with the definitions in Article 100 to properly apply the NEC requirements.

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