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Electrical Wiring in the Home/running power to separate building


QUESTION: Hi Robert, I am taking power from my 200amp entrance panel to a separate building with woodworking tools. I'll start with 100amp breaker at the panel then travel 75' inside my basement before going out through 1 1/2" conduit another 75' to the building where i'll have another 100 amp breaker at the subpanel. My question is cable type. I know i'll need URD for outside and am looking at either 2-2-2-4 or 2-2-4-6. Which will suffice? Also what should i use for wire inside the house between service panel and the exit to conduit? Thanks for your help

ANSWER: Hey Tom so sorry for the delay I have been have some family health issues with KY mother in law who just found out she has stage 4 cancer any way it seems like you pretty much have it well in hand and as far as the wire goes...being you are in fact going to be in pipe  I would just use #2 THHN the whole way...any other questions please let me know

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QUESTION: Hi Robert, sorry to hear about your mother in law. Those are the type of thing that put our other problems in perspective.  
Would like to ask you about the second half of my run.  One half is outside in conduit between house and garage, but it then enters the house and will not be in SER 2-2-2-4 jacketed wire the appropriate choice? Thanks again,  Tom

Hello Tom,
Nice to here from you again after reviewing your question I also noticed that you said you were going to start with an 100a breaker than another 100a breaker there is no need to Double fuse it You can if you want however the first 100a breaker is just fine than you can simply use a 100A MAIN LUG panel in your shop which is cheaper and you still will be in compliance as far as the wire I'm not sure what you mean by 2-2-2-4 wire are you speaking of "Direct Berrial Romex"? if so that is just fine if not the correct application would be 1 1/2" Green Field with 4 #2's (2hot 1 neutral 1ground) let me know if you have any other questions  
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Electrical Wiring in the Home

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Robert Tomasulo


I am here to answer ALL your questions regarding anything to do with home wiring such as Switches, Receptacles,Lighting, Main Distribution Panels, HVAC, Thermostats, etc; if it has a wire and in your home I CAN ANSWER IT. Whether its as simple as "why do my lights flicker?" Or as complex as I would like to rewire my house im here to help, in addition i can offer advice on remodeling a kitchen or lighting up you back yard as well as offering troubleshooting on appliances.


I have over 17 years in the electrical industry including Residential, Commercial & Industrial, Im also a certified HVAC technician as well as a certified fiber obtic technician.I am currently employed by the New York City Transit Authority as the Senior Electrical Maintainer and serve as the Relief Foreman for the electrical maintenance division for the past 12 years.I also hold many certifications, licenses and certificates in my field

FOA Member(Fiber Optic Association) UTU (United Transportation Union) IBEW (International Brotherhood of Electrical Workers) HVAC/TALK (Heating & Air conditioning troubleshooting group)

5 years of technical school after high school in electrical installation and design sponsored by Local 3 (IBEW) As well as over 17 years of hands on in the field training and education, and till this day im still learning, Not a day goes by that i don't learn something and if i feel i didn't i will open up a book to insure I DO!

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