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12-19-13, 05:08 AM

riley71

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fishing cable

Hello all. I have to fish new cable through 20' of a joist bay. There are dozens of screws through the ceiling from when drywall hangers covered the plaster and lath with sheetrock. Does this situation necessitate the use of mc cable instead of romex? I'm concerned a screw might tear open the romex while pulling it through. Thanks

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12-19-13, 07:24 AM

pcboss

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Given your situation MC would be less likely to be damaged.

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Electrical - AC & DC
Wire size for subpanel?

L

leslyons on Dec 18, 2013

Guys - I'm trying to post a new post, but can't find a "button" anywhere that lets me start a new thread. I KNOW I'm stupid! Somebody point out where the "start a new thread" button is, please! Here's what I'm trying to find out, JUST in case someone reads this: I live on a ranch and have underground electrical to my 100 amp panel on my well house. I am setting up a wood-working shop in a separate building that is 220 feet away. I want to put a 100 amp subpanel in the shop, to give me 110v and 220v for my power tools. It's only me, so i won't be running anything more than one tool and a dust collector at a time (at least that's what I think!). I plan to run 2" PVC Electrical (gray) conduit underground (2 ft deep?) from the well house to the shop, and run 4 wires (2 hots, a neutral and a ground) to the sub panel. What wire size (copper and aluminum) should I use? And should I "upsize" the wire to handle a 200 amp panel in case I ever want to increase the capacity in the future? I read a lot of posts, but still wasn't sure. If possible, "dumb down" the answer for me - I am definitely NOT an electrician, but plan to hire a retired electrician to do the work. THANKS for any help anyone can provide!!!Read More
Electrical - AC & DC
Sub panel for wood shop garage

M

mikecurranto on Dec 17, 2013

Hello all, Mike here from Cranston, Rhode Island. I have a home built in 1920 with a detached garage. Originally had a 60 amp service with the old tube wiring. I have since had a new service professionally installed. 200 amp with 1 60 amp subpanel. The subpanel feeds the attic which I converted into 2 bedrooms and a full bath. Currently light usage. The main panel is full. I have a woodworking shop in my basement and filled up the main panel with 2 240 and a bunch of 120 circuits. Can I add 2 more subpanels? I would like to add a 60 amp 8 breaker subpanel to feed the basement lights and receptacles. I'll leave the electric dryer in the main panel. Then I want to add another subpanel for my 10' x 20' detached garage as I am moving my wood shop to it next summer once the renovations are complete. The garage is a 75 foot run from the main panel. I want to add a 100 amp subpanel in the garage. I will install a grounding rod for the panel. The garage is a tinder box. I'm rebuilding it. The walls are old and dry 1x6 sheathing covered by 1/2" new plywood and red cedar shingles. The interior will have southern yellow pine on floor and eastern white pine on the walls and ceiling. No sheetrock! Yeah, I got a big fire extinguisher. Replacing the overhead door with 2 carriage doors. More wood. And I'm adding a side door. Wood. I'm adding a fire alarm. Here are my questions. Should I use 2 50 amp breakers in the main panel to feed the sub? I happen to have a new spare 100 amp main panel with a 100 amp main breaker and 20 breaker slots. Can I use it? Run 6/2 wire from the main to the garage sub? Cerrowire 125 ft. 6/2 NM-B Indoor Residential Electrical Wire? Found on HD site. Then add a ground to one neutral bus to the copper grounding rod? Or do I need to purchase another actual subpanel without the main breaker? I need to run the wire under ground. I realize there is UF for this purpose. But can I run a pipe through my basement wall and underground to the garage? If so, Metal or PVC? The garage subpanel will power a dozen 4 foot 2 bulb florescent lights and 2 240 volt tools. A table saw and a wood/sawdust collector. Plan to have 10/3 30 amp dedicated circuits for each. I will continuously run a dehumidifier, an air filter and small oil filled heater when necessary. The sawdust collector runs whenever any other tool runs. The air filter will run whenever I am in the shop. All the other tools and accessories are 120 volt and tend to run one at a time. I plan to run 3 12/3 circuits for the 12 lights. I will also add 16 receptacles on 4 12/3 circuits. Do the receptacles need to be GFCI? I'm sure I didn't think of everything here but it's a start. Oh yeah. When the main breakers in the main panel are turned off, what's the risk factor? I'm assuming the hot bus bars are dead? But the neutral bus bars could in theory still be dangerous assuming something goes wrong at the pole? Trying to plan this out correctly so I don't need to place any calls with my insurance company or the family undertaker. Thanks.Read More

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