Chapter 1: Introduction to Commercial Electrical Wiring
* Provides an overview of the scope of commercial electrical wiring, including different types of commercial buildings, applicable codes and standards, and safety considerations.
* Example: Discusses the National Electrical Code (NEC) as the governing authority for electrical wiring in commercial buildings.
Chapter 2: Electrical Theory and Basic Circuits
* Covers fundamental electrical concepts such as voltage, current, power, and resistance.
* *Example:* Explains the difference between direct current (DC) and alternating current (AC), with examples from commercial lighting and equipment systems.
Chapter 3: Electrical Distribution Systems
* Describes the different types of electrical distribution systems used in commercial buildings, including AC and DC systems, single-phase and three-phase systems, and grounding systems.
* *Example:* Compares the advantages and disadvantages of a single-phase system with a three-phase system for a large office building.
Chapter 4: Electrical Equipment and Materials
* Introduces the common types of electrical equipment and materials used in commercial wiring, such as transformers, switchboards, circuit breakers, and conductors.
* *Example:* Describes the different types of circuit breakers used in commercial buildings, including thermal-magnetic and electronic trip models.
Chapter 5: Electrical Wiring Methods
* Discusses the different methods of installing electrical wiring in commercial buildings, including conduit, cable trays, and raceways.
* *Example:* Compares the pros and cons of using conduit for concealed wiring in a healthcare facility.
Chapter 6: Lighting Systems
* Covers the design and installation of lighting systems in commercial buildings, including lighting calculations, fixture selection, and control systems.
* *Example:* Illustrates the use of a lighting calculation spreadsheet to determine the number of lighting fixtures needed to provide adequate illumination for a retail store.
Chapter 7: Power Systems
* Introduces the requirements for designing and installing power systems in commercial buildings, including equipment grounding, overcurrent protection, and load calculations.
* *Example:* Calculates the load requirements for a commercial building and determines the appropriate size of electrical feeders and transformers.
Chapter 8: Special Topics
* Discusses specialized topics in commercial electrical wiring, such as fire alarm systems, emergency generators, and telecommunications systems.
* *Example:* Explains the requirements for installing and testing a fire alarm system in a multi-story office building.
Chapter 9: Code Compliance and Inspections
* Emphasizes the importance of code compliance and provides guidance on how to meet the requirements of the NEC.
* *Example:* Discusses the specific NEC articles that apply to the installation of electrical wiring in commercial buildings.
