![]() The vertical risers of underground conduits should include an expansion fitting so that ground movement, caused by the settling of the trench backfill nor frost heaves, will not break the conduit nor pull it loose from the panel. If you use underground conduit instead then you can bury it 18 inches to the top from finished grade. You need to put an S bend in the cable or cables so that ground movement, caused by the settling of the trench backfill nor frost heaves, will not break the conduit nor pull it loose from the panel. The bottom end of the conduit must be deep enough to put directly buried conductors or cable 24 inches to the top most surface of the cable from finished grade. When you go to add that hot tub, or any other load that is located outside the home, you can run conduit straight down from the bottom of the panel to the bottom of a trench. Thanks in advance for lending your expertise!Ĭlick to expand.Having those breakers slots in the outdoor panels can be a good thing. Understandably this configuration will vary from house to house, so I'm going to follow this post tonight with a detailed diagram illustrating my specific setup. Would definitely and sincerely appreciate any experience you can throw my way. ![]() run the SER, drill holes, set a backer board for the exterior boxes over the finish stucco (?), assemble boxes and punch the appropriate knockouts, determine and install the correct connectors and conduit between boxes, etc.Ĥ) pull the service cable through the exterior wall, connect the service cable between the disconnects and meter base, full service cable to the circuit breaker boxes and connect them in the appropriate order, etc. The next steps (definitely going to need advice here) are:ġ) Confirm I have all of the hardware I need (particularly the disconnects-need to ensure they are properly configured, including any necessary grounds, pass through-lugs, etc.) Ģ) determine what kind of service cable I need to run between all of the boxes (currently thinking 2/0 alum 4-wire SER?) ģ) figure out the order of installation (e.g. I'd like to go ahead and set the meter base and disconnects and run the SER. I just picked up the 320-amp meter base and I bought (2) GE 150-amp exterior disconnects. Thanks everyone for your feedback on this topic, I sincerely appreciate your help! Since I started this discussion, I've made the decision to drop down to 320 amp service, and per the above recommendations (thank you WiredinDallas and others), I did reach out to our local utility and they sent me an approved meter base list. If I can just purchase the equipment and set the boxes, I'll get an electrician to come in and do all the hookups. Lastly, I think I need to use 4-wire SER between the meter, disconnects, and circuit breaker panels, correct? Should it be a certain gauge or is there just one gauge for 4-wire SER? BTW-I did receive some advice this evening to contact my utility to determine what kind of meter/disconnect setup I'm allowed to have in my community, but in the meantime, any help here would be much appreciated. Can anyone give me an idea what kind of disconnects and what kind of meter base I should be looking for? I've seen single phase, three phase, 120, 240, and some other technical specs that I don't quite understand. All I've heard is that the meter base needs to be "double lug" to support the two separate disconnects and two separate breaker panels, but I haven't seen that "double lug" description on anything I've looked at so far. I've thus far been able to pick up (2) Cutler-Hammer 200-amp circuit breaker panels (lugs only, no internal disconnects), but I'm not sure what kind of 200-amp exterior disconnects I should purchase (or what to look for there), nor what the specifications of the 400-amp meter base should be. Electrical supplies are very limited here in Myrtle Beach, so I've resolved to the idea that I'm probably going to have to get mis-matching brands. ft., I'd like to supply 400-amp service to it, including setting a 400-amp meter base, (2) 200-amp exterior disconnects (required by code), and (2) 200-amp 40-slot circuit breaker panels. Hey everyone, I'm new to the site, appreciate any solid help you can provide! I'm building a house myself, 3400 sq.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |