I have a elecrical design going now for class I Division installation now.
I will greatly appreciate of somenoe can direct me to a link or a manufacturer where I can get an Electrical Specification on the subject.
Thank you in advance
REVISIONS TO ELECTRICAL CODES AFTER HURRICANE KATRINA OR PSUNAMI TYPE OF OTHER NATIONAL/INTERNATIONAL FLOOD INCIDENTS
I am an Electrical Engineer currently working in Washington DC
I have been seeking answers for published Electrical Code changes or/and revisions to Electrical Code after...
On customer request I have a design for 240 voltsa 1-p,3-p system 1-line with CT connection to provide power for 4 tenents.
Can some one direct me to a link for a typical 1-line to refresh my memory.
I do not do 240 vots system on regular bases.
I need to have 120 v, 240 volt 1-p and 240 v...
What is the different between Ground Fault Current and Short Circuit Current?
I have heard someone arguing that Ground Fault Current is entirely different form Short Circuit current.
Is isn’t a Ground Fault current eventually becomes Short Circuit current to trip the nearest circuit breaker...
One of our client is interested in a experimental combined heat and power project. The primary objective of this project is to generate continuous power through micro turbines to provide enough heat to produce up to 40 tones of absorption chiller cooling. There is the potential for as much as...
I would like to know what is the Fire Rating Criteria is for 13.5 KV and above Network Transformer Vault Wall Construction in the US. If it is addressed NEC [National Electrical Code in US], I cannot find it. Any Electrical or/and Building Standard code that address matter in the US will be...
Can someone explain me as to how load flow study can be used relate a system’s economic analysis. Can Load flow study for building be used to analysis the economic of that building?.
Please explain me what is a 5-pole bus bar. This is not a familiar electrical engineering term here in the USA.
Please see attachment's. Someone is building a German Manufacturing firm here in USA. This seem like part of the specification for it.
Thank you in advance
I am looking for manufacturers on "Flat Cables" as substitute for regular electrical wiring[120/208V] for office application. Any information on this will be greatly appreciated.
I am in the process of designing on a rush project for the first time that has to do with connecting two 100 HP Fire Pumps to an exisitng 600 KW Generator with only around 200 amps per phase on all three phases being used to date.
This is the first time I working with Fire Pumps and I am not...
I would like to know what is the commonly used CRI by any standards? Is CRI> 85 fir site lighting is too much to ask.
Can some one refer me as to where I can look this up?
I like to know whether a “snap shot measurements [Instantaneous] measurements are acceptable for Harmonics analysis of an existing electrical system? Is there an IEEE standard specifies how it should be measured. I have an electrical consultant basing his UPS design on an existing electrical...
I have just read someone’s design drawing for a 30 Horse Power Fire Pump. I am not sure why his design calls for 250 amp enclosed circuit breaker on the Normal side of the Fire Pump controller ATS on the Normal side and a 50 amp enclosed circuit breaker to the Emergency side of the Fire Pump...
I like to know whether it is technically correct to provide a 3-phase 4-Wire panel from a residential single phase panel which I assume which has L1 and L2 and a Neutral.
I was asked to provide a 60 amp sub-panel form a residential panel which I assume 100 Amp or larger. I had a choice of...
