Need Help making a lamp out of an old glass wine bottle

I have an old glass wine bottle and I want to make a lamp out of it
I started off drilling a 3/8" (1/8 IPS) for the cord to go through (I know there are bottle kits out there but I think they look tacky with the cord coming out of the socket shell)
Any way I know how to assemble a lamp as I have done it many times before, and I am very familiar with fixture wiring
So my one and only question is can the SPT-1 (18/2) cord be in sand?
I want to put colored sand in the bottle (To weigh it down and to look better) and I am going to be putting a pipe (3/8" 1/8 IPS) through the bottle and there will be a cord bushing in the hole so very little cord is going to be directly in the sand
I am going to be using the special craft sand not the regular ol' Sand (Very fine particles) I just want to know if that would be OK to do
I think it is but I just want to make sure

Thanks

 

Obviously it won't have a UL listing but I don't see anything dangerous about what you are planning.

 

I'd probably sheath the cord, maybe with clear poly tubing just as an extra precaution. Your talking more UL rules here then NEC. As long as the sand is dry I see no problem.

The preceding has been an opinion not a pronouncement.

 

I would use heat shrink tubing or some other listed product.

 

No need to do either. This is craft sand we're talking about here. It's very fine, non-abrasive, and non-conductive. The same stuff they do sand art at the carnival with - it's almost powder.

And on that note, a regular wire bushing isn't going to cut it as far as keeping the sand in the bottle. You'll have to fill the hole around the wire with silicone caulk.