DIYbanter - View Single Post - Is a junction box behind clear acrylic considered concealed?

Bill[_43_]

In article , says...

DerbyDad03 wrote:
Let's say I need to extend some wires that run in the joist space below a
crawl space attic above a bathroom. The crawl space has 1 x 4 flooring.

I know I can't simply remove the floor boards, install the junction box and
then conceal it with the floorboards.

However, can I replace the cut out floorboards with a piece of plywood with
an acrylic insert so that the junction box can be seen from above?

The plywood would be big enough to be used as an access panel spanning the
joist bay, the "window" would be large enough for the junction box to be
clearly visible.

If not acrylic, what about a steel grate?

It doesn't have to be visible, just accessible.

Right! Accessible, not necessarily visible.

The problem is that the wires in a junction box may come loose (need to
be able to open the junction box to fix the problem). Or if there is a
problem with a circuit, you can open that junction box and test the
wires.

If this is in a crawl space, can you get into the crawl space and then
get to that junction box from below? If yes, then it is accessible!