That's not good at all, given the area that this area is often full of people.
And given the distance from the ground, means that any un-supervised child could "have a play" with the exposed wiring.
I thought that these sorts of things were required to have a security screw arrangement on them?.
Or is a case of a slack workman leaving the cover off of it after repairs?.
I hope that this was immediately reported to the appropriate authorities.