I am studying to take the PE examination and it has been MANY years since I went to school. I purchase one of the study guides from the ncees and there is a question on calculating the present worth of an investment.
Can someone help me understand the question and answer?
Thank you in...
I have a lineup of 15kV switchgear which will be installed in a prefabricated building. The switchgear has rear access in order to access the bus and incoming & feeder cable terminations. The building manufacturer indicates that NEC 110.34(A) Exception takes precedance here because the end...
I have worked in the petrochem industry for a while where a double ended main-tie-main system is very common. Now that I am on a power job I keep hearing breaker and a half scheme. The two seem similar but could someone tell me the difference between a breaker and half scheme and a double ended...
