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  1. Services and Service Equipment
    Good morning Ladies and gents. I am an electrician in Michigan, contemplating a move to a different state. I was wondering if there are big differences in applications that I need to be wary of. Specifically, service changes and things of that nature.
  2. Canadian Electrical Forum
    Hello Everyone. I am hoping to get some advice and to see if i am on the right track when it comes to a new project that i am working on. Please keep in mind that i am in ontario canada and code rules are different even between provinces. (Everything is underground) I have a property that is...
  3. NEC Code Forum
    Hello, I'm looking to see if anyone may have experience or an idea of how glamping sites would be specified in the NEC. I can't see to pin down an exact definition to apply to glamping sites. If you're unfamiliar, glamping is luxury camping, geodesic domes, bubbles, tipis, all of which will...
  4. Business, Marketing, and Sales
    Hey everyone, looking to get some experienced feedback on service contracts. Here's my specific situation: Been working for a large electrical contractor on a large scale public works project at a major state university for the last 2.5 years. While I've been on this project I've obtained my...
  5. Services and Service Equipment
    So I am in the process of bidding out a 3 family in massachusetts, boston area, and I don't do residential all of the time. Ive done my service calculation for the units, and they will draw max 75 amps, but I know that isn't the case all of the time. Anyways, I figured each unit will have a...
  6. Services and Service Equipment
    Hey there, I am wiring a 3 family in massachusetts, and I am not a wiz on residential wiring as I mainly do industrial and commercial. Anyways, my question is How far can my service entrance cable go between the meter disconnect and the panel. It is a 3 family, and I want to put the panels in...
  7. General Electrical Discussion
    I have a question that I'm not really sure I know the correct answer to. If you have dwelling unit calculation that comes out to, say 195 amps, can you still use 4/O aluminum? In 230.42 it states that the conductor shall have an ampacity not less than the maximum load to be served, but in...
  8. Tools, Equipment and New Products
    I mostly work residential in a gentrifying city -meaning lots of old panels & meters, loose bugs, crappy grounding. I get a lot of situations where 1 leg of the service entrance isn't working/intermittent arcing. I'm looking for recommendations to get a *voltage logger* to see if problems are...
  9. General Electrical Discussion
    Is a portable generator (the type typically used by home owners when the power goes out) a separately derived system? Or, is it considered a nonseparately derived system? I have thought it was a separately derived system, but now I am unsure. - When the generator is plugged in, I would say there...
  10. General Electrical Discussion
    I’ am currently bidding a job for a a triplex. Each of the 3 units will have its own 100 Amp panel, and the House panel will be a 50 amp. I am considering bringing in a 400 amp feed, is that over kill or is that the correct service size i should be using for this project?
  11. Services and Service Equipment
    I’ am currently bidding a job for a a triplex. Each of the 3 units will have its own 100 Amp panel, and the House panel will be a 50 amp. I am considering bringing in a 400 amp feed, is that over kill or is that the correct service size i should be using for this project?
  12. General Electrical Discussion
    I have a friend who asked me a good question today. He was looking at a house that has a 320A service, one panel needs to go in the garage and another in the basement, below. The question is, do you need to have a disconnect for the second panel in the same location as the one in the garage...
  13. Services and Service Equipment
    We are doing a job in a older building where the service comes in three wire 1000 amp service and appears to be ungrounded. Myself and the two other electricians on the job have looked at it and we measure Phase A -> B = 240 B -> C = 240 C -> A = 240 A -> case = 150 B -> case = 120 C -> case...
  14. General Electrical Discussion
    i am working on a DADU (detached additional dwelling unit) in Seattle. I have to upgrade the main service at the house to 200 amps and put in a double socket meter base. The main house needs a 100 sub panel and the DADU also needs a 100 amp sub panel. Table 310.15b6 used to let me use #4 wire...
  15. Canadian Electrical Forum
    So the way we used to figure a HWT in the determination of a single dwelling service calc was to throw it under 8-200 (1) (vii), at 100% if no range was figured and at 25% if a range had been provided for in item (iv). I've been told by a respected associate who serves on at least one of the...
  16. General Electrical Discussion
    I'm adding a GFCI receptacle on the outside of a house in Canada. This one will be right by the panel in the basement so it will have its own dedicated circuit. I was going to drill a hole in the footing from the outside, run my cable and then Hilti the weatherproof box onto the footing over...
  17. Tools, Equipment and New Products
    These *look* awesome...has anyone tried them and/or what do you think...? If you respond, please say whether or not you've actually used them (or a similar product). Thanks! https://www.acdcusa.com/96106-ttd1010fbtuni-above-ground-insulation-piercing-connector-main-1-0-8-tap-2-10/
  18. General Electrical Discussion
    Ive seen this topic discussed a couple times but not found a for sure answer. Does a Pergola require any clearances to overhead services? I think it comes down to if you consider the top a pergola a "roof". Personally I don't think should be considered a roof and therefore would not require any...
  19. Services and Service Equipment
    I have an old bible camp looking to upgrade their service. I'm currently working on the Load calculations, but want to know what you guys think. There are 6 cabins, all are bare bones no equipment, one room unfinished shacks. One sanctuary/church that's 1440sf, unfinished inside. A 1200 sq ft...
  20. Services and Service Equipment
    I'm putting in service wiring for a new heat pump unit and a nearby hot tub enclosure. Two 50 amp circuits plus one 20 amp circuit for a couple outlets by hot tub for lights, stereo, etc. The power is coming from an indoor 200 amp main panel. I am planning a large conduit inside the wall to an...
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