Author Question: How should meter test leads be connected for testing a circuit? What will be an ideal ... (Read 71 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
How should meter test leads be connected for testing a circuit?
 
  What will be an ideal response?

Question 2

What are the four wires used in a common four-wire communicating system?
 
  What will be an ideal response?



Carissamariew

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

Whenever possible, attach the test leads to the conductors with the circuit de-energized. This can be done with alligator clip type test leads. Always connect the neutral test lead first and then the hot test lead last. The circuit may then be energized for the reading to be taken. Once the reading has been obtained the circuit may once again be de-energized and the test leads removed by disconnecting the hot lead first and the grounded lead last.

Answer to Question 2

Two wires for control power and two wires for communication.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

For a complete list of videos, visit our video library