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North Carolina Electrical Restricted-Plumbing and Heating (SP-PH)

The Electrical Specialty Restricted Plumbing, Heating, and Air Conditioning (SP-PH) classification authorizes the licensee to install, maintain, or repair electric wiring or devices only as an incident to the licensee’s plumbing, heating, or air conditioning business.


It authorizes the licensee to install, maintain, or repair only wiring that is directly related to pluming, heating, or air conditioning that is restricted to circuits or parts of circuits that operate at voltages not exceeding 600 volts phase to phase, is electrically isolated from the building wiring system by an over-current protective isolating device that has been installed complete with line-side connections by others, is permanently and legibly marked to identify the equipment served by the device and is located within an enclosure intended solely for and limited to servicing the specific plumbing, heating, or air conditioning equipment involved or is located within a panel-board that serves the building wiring system and is also permanently and legibly marked to identify the equipment served by the devise provided that the wiring is installed by others from the load side terminals of the device to the junction box, auxiliary gutter, or similar disconnecting means located outside the panel-board but in sight of and within 50 feet of the plumbing, heating, or air conditioning equipment served.


This license also authorizes the licensee to install, maintain, or repair only wiring that is directly related to plumbing, heating, or air conditioning equipment and that originates at the load side terminals of the protective isolating device, except for control wiring, is physically adjacent to the plumbing, heating, or air conditioning equipment. Control wiring that receives its control power from the plumbing, heating, or air conditioning equipment involved may extend beyond these limits if the control voltage does not exceed 120 volts to ground and the wiring is protected from over-current and is not installed in a location considered hazardous under the National Electrical Code.

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Seminar Format

What Is Included in Your Seminar

  • Required-book list and tabbing guidance
  • American Contractors Exam Services study guide and workbook
  • Book navigation workshop
  • Practice questions and timing strategy
  • Instructor support during class
  • Post-registration support from American Contractors Exam Services

Required Books

Some of the references listed below are permitted to be taken into the examination. These references may be tabbed (with permanent index tabs) and highlighted. Please contact us for a detailed listing. They are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-992-1910.

*There are additional downloadable documents for the North Carolina Electrical Specialty Restricted Plumbing and Heating exam*

target="_blank" href=General Statutes, Chapter 87.

target="_blank" href=Title 21, NC Administrative Code, Chapter 18B.

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