Going to submit this: This the question on the pratice test. Yes I have the answer key. Here we go.
Answer questions #3 through #13 with the following moter nameplate information: 230 volt's,three phase, AC
moter, service factor of 1.0, temperature rise rating of 40 degrees Celsius, rated for continous duty, design letter B, code letter R, full load current rating of 20 Amp's., and 7-1/2 horsepower.
Save that thought!
I did the first Ques. right.
#2 Asked
What is the Max. I.V.T.B. (inverse time breaker) to put on this ? It is a #10 Con.,okay,then if we take the
given amp's, from the Ques., or we take 430.250, it still comes to #10. Correct if I am wrong. The Key
Answ. ( Will call it AK from now on!). The AK say's 55 Amp's. I am 49 year's young and never saw a 55
Amp IVTB. 240.6a, you know where I am going with that. I would like some help on this one?
Answer questions #3 through #13 with the following moter nameplate information: 230 volt's,three phase, AC
moter, service factor of 1.0, temperature rise rating of 40 degrees Celsius, rated for continous duty, design letter B, code letter R, full load current rating of 20 Amp's., and 7-1/2 horsepower.
Save that thought!
I did the first Ques. right.
#2 Asked
What is the Max. I.V.T.B. (inverse time breaker) to put on this ? It is a #10 Con.,okay,then if we take the
given amp's, from the Ques., or we take 430.250, it still comes to #10. Correct if I am wrong. The Key
Answ. ( Will call it AK from now on!). The AK say's 55 Amp's. I am 49 year's young and never saw a 55
Amp IVTB. 240.6a, you know where I am going with that. I would like some help on this one?