Replies

1. 
   DanH | Nov 11, 2012 08:16pm | #1

   It normally would not be legit to splice the wire inside the post (though it's not clear why you should need to do so, with or without an LB).

   Does the supplier of the post give any hints as to how the wiring is normally handled?  (At the very least code would require a "bushing" where the wire exits the post.)

   (If it were me I'd probably install a flush-buried junction box and run the individual wires to that, rather than daisy-chaining.)

1. 
   Shingle_Style | Nov 11, 2012 09:02pm | #2

   The supplier doesn’t offer any advice on it. I was wondering about putting a junction box under the post too. As long as the box doesn’t support the weight, I suppose PVC would work?

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1. 
   DanH | Nov 11, 2012 09:46pm | #3

   No, not a box under the post (which wouldn't be legit for a junction box), but a flush-with-the-surface landscape lighting box.

1. 
   Shingle_Style | Nov 11, 2012 10:35pm | #4

   That would avoid the problem of having to drill the granite at the expense of visible box covers.  Any idea if a hammer drill with a 3/4" bit would break the post?

1. 
   DanH | Nov 11, 2012 11:14pm | #5

   Try it and find out.

   In my opinion the posts should be set on a base that contains a passageway for the wire, so that the weight of the post is not on the wire.  (And a bushing still needs to be placed in the post opening.)

   The intent of the separate buried box was to allow the posts to be wired without daisy chaining and without having to "home run" each cable.  (And without having to attach boxes to the sides of the posts.) You can do it without the box, but you have to use one of the other schemes

2. 
   DanH | Nov 16, 2012 11:12pm | #9

   Not sure I see the point of drilling the post.

2. 
   IdahoDon | Nov 16, 2012 01:57am | #6

   Yes hammer drills crack granite!  lol   

   Simply get a diamond core drill bit at lowes for $20  These cut a cylinder which can be broken off if you need to go deeper.

1. 
   Shingle_Style | Nov 16, 2012 06:17pm | #7

   I asked specifically about the post because I have used hammer drills on granite slabs with no problems.  The core hole in the post is what makes it tricky.  I have also used diamond core bits on granite, but have found that they clog very quickly (but I was using 1/4").  Have you used 3/4" with success?

1. 
   IdahoDon | Nov 16, 2012 10:42pm | #8

   Yes, a good core drill goes through pretty quickly.  If you are going deeper than the core will allow I just break the plug out with a hammer and punch of some kind and keep drilling.

   I do know cheap core drills don't cut as fast as a good one.