How to Estimate Large Commercial Electrical Jobs
I am looking for a book on estimating large commercial jobs including Solar installations. Their are so many books out there which are the best…
Resources for Estimating Commercial Electrical Jobs
Question: I am looking for a book on estimating large commercial jobs including Solar installations. Their are so many books out there which are the best?
This electrical question came from: Jason, a Electrician from Middlesex, New Jersey.
See more about Home Wiring for New Jersey
Thanks for your electrical question Jason.
Electrical Estimating for Commercial and Solar Projects
Jason, there are a lot of fine resources for great electrical books. One publisher that I am very familiar with is Thompson Delmar, the Cengage Learning publishers who produce high quality books. I personally have their De Walt Electrical Estimating Professional Reference and the De Walt Construction Estimating Complete Handbook.
The Following links will assist you with your electrical question:
Electrical Code Articles for Home Wiring
Electrical Code Directory covering afci circuit, electrical-boxes, electrical-circuit, electrical-code-outlets, electrical gfci, electrical-grounding, electrical-project, electrical-services, electrical-underground, electrical-wiring, electrical-wiring-code, lighting-code, and smoke-detectors.
You identified your project to be about Electrical Wiring, so you might find this information useful:
Home electrical wiring projects with pictures and wiring diagrams.
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
Wiring a Switch for an Air CompressorWayne asks:
I am wiring my 240volt air compressor using 10/3 to a lighted 30 amp switch to place by exit door to turn off when im away.
My question is: when I wire the switch I will have essentially two hots, do I place both the black and red on one screw and the black and red on the other?
Also its the lighted Leviton 3032-plr, a lot of the comments say I need to use the neutral to operate the light.
I dont know what to do with that.
Thanks for your help.
Wayne, The Leviton 3032-plr switch that you have described is for 120volt applications and will not work on a 240volt circuit.
A typical 240 volt air compressor requires two hots and a ground wire.
A neutral wire is not required.
A 120volt lighted control switch could be wired as an add on control circuit, however this would require a separate 120volt control circuit, a 120volt lighted switch, and a 120volt control relay with 240volt contacts rated for 30amps.
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