Here's my scenario: I'm currently re-doing a floor, and have been asked if it's possible to cut a channel for running extension cables for computer equipment, as well as some low-voltage devices. The floor is a little over 3/4 in. thick, which sits upon a 3/4 in. plywood subfloor, which itself is on concrete. The channel itself would be covered by a grill that can be removed by hand without tools.
Is this code compliant? I'd like to avoid cutting into the concrete to leave room for a receptible, if possible.