Courses of Study

Architecture and Construction, Grade 9 - 12, Commercial Wiring, 2009

1.) Demonstrate safety procedures as recognized by governing agencies and approved industry standards when testing and replacing components, or installing wiring.

Examples: lockout, tagout

2.) Identify electrical hazards and how to avoid and minimize them in the workplace.

3.) Explain the purpose of switchgears in commercial wiring applications.

4.) Describe construction, metering layouts, wiring requirements, and maintenance for switchgears.

5.) Describe visual and mechanical inspections and electrical tests associated with low and medium voltage cables, busways, and instrumentation.

6.) Describe the function of ground fault relay systems used in commercial wiring applications.

7.) Describe the operation and function of Delta and Wye wired transformers.

8.) Demonstrate connecting a multi-tap transformer to obtain required secondary voltage.

•  Connecting a control transformer for a given application
•  Calculating the power factor for a given circuit
9.) Identify various types of hazardous locations encountered by commercial electricians.

Example: proximity work, limited-access work

10.) Select commercial wiring materials and methods for use in hazardous locations.

11.) Demonstrate the installation of explosion-proof boxes and fittings as specified by the National Electrical Code (NEC) codebook.

12.) Select feeder over-current protection devices for continuous and noncontinuous duty loads in commercial wiring applications.

13.) Calculate electrical loads for a variety of commercial applications.

Examples: office building, marina, restaurant

14.) Calculate motor loads on electrical feeder lines.

15.) Describe various types of standby and emergency generators.

•  Describing operating principles of automatic and manual transfer switches
16.) Demonstrate the installation of a commercial service entrance and load center or panel board