Mechanical and electrical construction 6
Review Material
https://www.youtube.com/watch?v=uvJD1sSt1PM
https://www.youtube.com/watch?v=56L_7QJZyRQ
Discussion
Why is conduit used or sometimes required?
What is determined by ratings on a receptacle?
Why are GFCI’s used and how do they work?
Why does voltage drop in a circuit?
Determine the power factor when true power of an electrical circuit is 1000W and apparent power is 1700 VA.
Also, for a heater rated at 3000 W, how much energy is used in 2 and 10 hours?
Review Material
https://www.youtube.com/watch?v=uvJD1sSt1PM
https://www.youtube.com/watch?v=56L_7QJZyRQ
Discussion
Why is conduit used or sometimes required?
What is determined by ratings on a receptacle?
Why are GFCI’s used and how
do they work?
Why does voltage drop in a circuit?
Assignment
Determine the power factor when true power of an electrical circuit is 1000W and apparen
t power is
1700 VA.
Also, for a heater rated at 3000 W, how much energy is used in 2 and 10 hours?
Review Material
https://www.youtube.com/watch?v=uvJD1sSt1PM
https://www.youtube.com/watch?v=56L_7QJZyRQ
Discussion
Why is conduit used or sometimes required?
What is determined by ratings on a receptacle?
Why are GFCI’s used and how do they work?
Why does voltage drop in a circuit?
Assignment
Determine the power factor when true power of an electrical circuit is 1000W and apparent power is
1700 VA.
Also, for a heater rated at 3000 W, how much energy is used in 2 and 10 hours?