Here's the deal. Raised floors throughout a five storey building have hundreds of double duplex receptacles under them. There's a cob web of extra long plug strip cords running to the receptacles, through holes in the floor tiles. Now, this isn't a computer room situation, just regular office space. I know that the code prohibits cords running through tiles this way, and I suspect it is because you can't see the condition that the cord cap is in, as it is out of sight when plugged in under the floor tiles. All sorts of loose connection mischief can occur this way, and I'm wondering if anyone has any experience in the sort of problems caused by this sort of code violation.