Anti-vandalism protection for lighting enclosure set in ground, uses protective cover plate held in place by bolt with washer on top to prevent operation with tube spanner or pliers, and requiring a special tool

摘要

The lighting has a lamp (5) in a sealed enclosure (1). The bulb is covered by a horizontal plate (10), with one edge folded to fit (12) over pins (14), while the other edge (13) retains a bolt (20) with its head accessible from the outside through a hole (19) in the plate. The top of the bolt head carries a washer, preventing operation with tube spanner or pliers, and requiring a special tool.