New information

Question 1

What is a service line?

Answer 1

Any electric conductor through which energy is supplied by the commission to the consumer

Question 2

Raceway

Answer 2

An enclosed channel that forms the path

Question 3

Advanatages of using EMT over PVC

Answer 3

1)EMT is more durable than PVC
2)EMT is fire resistant where as pvc isn’t
3)EMT has high mechanical strenth where as pvc has physical weakness

Question 4

Differences between a circuit breaker and fuse

Answer 4

1)Circuit breakers short circuit when there is an overload in current whereas fuses melt

2)Circuit breaker can be reused over again whereas fuse is a one time use

3) Circuit breaker are safer than fuse because its a flip of a switch

4)Circuit breakers do not have exposed live parts where as fuses do

Question 5

Effects of loose termination on a busbar

Answer 5

1)The current would not be able to effectively return to supply causing overheating

2) There will be a break or short circuit if connection fails

3)The electrical apparatus can be destroyed