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

Table 220.102 of the National Electrical Code (NEC) is used to calculate the minimum ampacity requirements for feeders and service conductors. It provides a set of values that are based on the size of the service or feeder and the type of load that it will be serving. Here’s a step-by-step guide on how to use Table 220.102:

  1. Determine the size of the feeder or service conductor in amperes.
  2. Determine the type of load that the conductor will be serving (such as general lighting, heating, or air conditioning).
  3. Find the appropriate column in Table 220.102 based on the size of the conductor.
  4. Find the row in the table that corresponds to the type of load that the conductor will be serving.
  5. The value in the table where the row and column intersect represents the minimum ampacity that is required for the conductor.
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