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

Author Question: There are cases in which equipment connected by a plug or cord do not have to be grounded. What are ... (Read 66 times)

armygirl

  • Hero Member
  • *****
  • Posts: 556
There are cases in which equipment connected by a plug or cord do not have to be grounded. What are these exceptions?
 
  What will be an ideal response?

Question 2

List four of the major sources of electrical hazards in the workplace.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ju

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

There are cases in which equipment connected by a plug or cord do not have to be grounded. These exceptions are as follows: 1) when they receive power through an isolating transformer that has an ungrounded secondary of 50 volts or less, and 2) properly labeled portable tools equipped with a system of double insulation.

Answer to Question 2

The major causes of electrical shock are as follows:
 Contact with bare wire carrying current. The bare wire may have deteriorated insulation or be normally bare.
 Working with electrical equipment that lacks the UL label for safety inspection.
 Electrical equipment that has not been properly grounded. Failure of the equipment can lead to short circuits.
 Working with electrical equipment on damp floors or other sources of wetness.
 Static electricity discharge.
 Using metal ladders to work on electrical equipment. These ladders can provide a direct line from the power source to the ground, again causing a shock.
 Working on electrical equipment without ensuring that the power has been shut off.
 Lightning strikes




armygirl

  • Member
  • Posts: 556
Reply 2 on: Jul 26, 2018
Great answer, keep it coming :)


xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

For a complete list of videos, visit our video library