CTE Resource Center - Verso

Virginia’s CTE Resource Center

Explain functions, operation, and characteristics of single-phase power systems.

Definition

Explanation should include
  • identifying components used in power system wiring
  • stating how conduit, nonmetallic sheathed, and metal sheathed cable is routed in residential installations
  • identifying the proper termination for the cabling.

Process/Skill Questions

  • In a normal single-phase three-wire system, how is 120 V derived?
  • In a normal single-phase three-wire system, how is 240 V derived?
  • How is a neutral derived in a 120-240 V three-wire system?
  • What is the difference between alternating current (AC) and direct current (DC) voltage?

Related Standards of Learning

English

11.5

The student will read and analyze a variety of nonfiction texts.
  1. Use information from texts to clarify understanding of concepts.
  2. Read and follow directions to complete an application for college admission, for a scholarship, or for employment.
  3. Generalize ideas from selections to make predictions about other texts.
  4. Draw conclusions and make inferences about explicit and implied information, using textual support.
  5. Analyze two or more texts addressing the same topic to identify authors’ purposes and determine how authors reach similar or different conclusions.
  6. Identify false premises in persuasive writing.
  7. Recognize and analyze use of ambiguity, contradiction, paradox, irony, overstatement, and understatement in text.
  8. Generate and respond logically to literal, inferential, evaluative, synthesizing, and critical-thinking questions before, during, and after reading texts.

12.5

The student will read and analyze a variety of nonfiction texts.
  1. Generate and respond logically to literal, inferential, evaluative, synthesizing, and critical-thinking questions before, during, and after reading texts.
  2. Analyze and synthesize information in order to solve problems, answer questions, and generate new knowledge.
  3. Analyze two or more texts addressing the same topic to identify authors’ purposes and determine how authors reach similar or different conclusions.
  4. Recognize and analyze use of ambiguity, contradiction, paradox, irony, overstatement, and understatement in text.
  5. Identify false premises in persuasive writing.
  6. Draw conclusions and make inferences about explicit and implied information, using textual support.

Other Related Standards

NCCER Electrical Standards, 2011

26110-11 Basic Electrical Construction Drawings

 

26111-11 Residential Electrical Services

 

26112-11 Electrical Test Equipment