Running Line Through Cinderblock... - Electrical - Page 2 - DIY Chatroom Home Improvement Forum

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Old 10-02-2011, 08:38 PM   #16
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Not electrician or contractor reason for asking question on tis board for expert help and helpful info.


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Old 10-03-2011, 08:24 AM   #17
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Instead of boring a hole in the concrete, you run it up the side of the foundation in conduit and then use an LB (can find at a home store, a right angle fitting) you can bring the cable in through the wooden rim joist. It's a lot easier to drill and not nearly as thick.
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Old 10-03-2011, 10:43 AM   #18
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My personal views (which may differ from others).
  1. Run conduit underground. It gives some protection to the wire and provides a method to easily replace/add wires if needed. Oversize the conduit (within reason) just in case you want to do something different in the future.
  2. 12" is not deep enough. We found that out when we had our stone driveway redone.
  3. The UF vs. THWN debate has those with strong feelings on both sides. I hate UF because it is hard to strip.
  4. I have run conduit through cement block using conduit. I aimed for the hollow portion of the block. I used a masonry hole saw. I drilled from both sides, inserted the conduit, and then filled the void in the block with expandable foam insulation (just as Tommy Silva did on Ask This Old House).
  5. We just had a new well installed. They ran the UF wire directly through the hole drilled in the poured cement wall. No conduit. Passed inspection.
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Old 10-03-2011, 11:58 AM   #19
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Originally Posted by 68MHJCs View Post
There was already a line there but during the winter (problem) I hit the line with the snow thrower. Now every time I would turm the lampost on it would trip the curcuit.
How in the world did you take out a buried electrical line with a snowblower? Were you trenching with it, along with deciding that it was too boring to just stay on the drive and side-walks, so you decided to go four-wheeling around the yard?


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