NEC Section 430.6(A)(1) covers which of the following?

NEC Section 430.6(A)(1) covers which of the following?

• A. Table values; used for determining ampacity of conductors, current ratings of switches, and protections for motors less than 1,200 RPMs
• B. Minimum size and ampacity of conductors for various reasons
• C. Rating of Service disconnect means
• D. General lighting loads by non-dwelling occupancy

Answer: (A)

The main idea here is that motor circuits use specific table values to determine conductor ampacity, the current ratings of switches, and the protections needed, especially for motors that run at speeds under 1,200 RPM. These tables reflect how low-speed motors can behave differently from standard-speed motors, with different starting currents and operating currents, so sizing and protection have to be based on those published values rather than generic rules. By referring to those tables, you ensure that the conductors and protective devices are appropriately matched to the motor’s characteristics. The other topics listed aren’t what this section addresses. One item refers to a general requirement for conductor size and ampacity across various reasons, another to the rating of service disconnect means, and another to general lighting loads for non-dwelling occupancies. They belong to different parts of the NEC and do not capture the table-based sizing and protection guidance for motor circuits that this section provides.

The main idea here is that motor circuits use specific table values to determine conductor ampacity, the current ratings of switches, and the protections needed, especially for motors that run at speeds under 1,200 RPM. These tables reflect how low-speed motors can behave differently from standard-speed motors, with different starting currents and operating currents, so sizing and protection have to be based on those published values rather than generic rules. By referring to those tables, you ensure that the conductors and protective devices are appropriately matched to the motor’s characteristics.

The other topics listed aren’t what this section addresses. One item refers to a general requirement for conductor size and ampacity across various reasons, another to the rating of service disconnect means, and another to general lighting loads for non-dwelling occupancies. They belong to different parts of the NEC and do not capture the table-based sizing and protection guidance for motor circuits that this section provides.