This topic contains a solution. Click here to go to the answer

Author Question: The two most common types of overcurrent protective devices are _____. a. circuit breakers and ... (Read 43 times)

kaid0807

  • Hero Member
  • *****
  • Posts: 515
The two most common types of overcurrent protective devices are _____.
 
  a. circuit breakers and fuses
  b. heaters and blowers
  c. Edison-base fuses and time-delay devices
  d. safety switches and load centers

Question 2

Which of the following is defined by UL as a device that trips when a fault current to ground is 6mA or more?
 
  a. Class A
  b. Class B
  c. Class H
  d. Class R



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jaaaaaaa

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

a

Answer to Question 2

a




kaid0807

  • Member
  • Posts: 515
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it


irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

For a complete list of videos, visit our video library