With the following pictures of 2 ft x 2 ft recessed fluorescent corridor lighting, I meant to show how the louvers of fluorescent light fixtures are provided with hinge for ease of maintenance.
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Picture 1: 2 ft x 2 ft fluorescent corridor lighting
All parts of an electrical installation must be designed with enough provisions for access to do repair and maintenance works.
Even for the not so complicated things like fluorescent light fixtures like the ones in the above picture.
Note that the ceiling corridor here used the plaster ceiling type. Unlike ceiling panels that are removable in 2 ft by 2 ft or 2 ft by 4 ft sizes as they are installed onto ceiling tees, the plaster ceiling type needs to be broken if the maintenance need to access to the mechanical and electrical services installed above the ceiling.
After the maintenance work is done, the opening need to be sealed back to the original condition.
It is a messy work.
So here is a classic example of the need to have electrical fixtures purposely designed for access without breaking things.
Picture 2: Closer view of aluminium louvers with hinge
The above picture shows a closer view of light fixture, with the louvers swinged down and pivoted at the hinge.
While the picture below shows a few of the same type of the fluorescent lights during normal operation.
Picture 3: Lighted fluorescent lights
The provision of louvers is not only good for lighting at plaster ceiling areas; it is just at convenient where 2 x 2 ft or 2 x 4 ft ceiling is used.
Picture 4 below shows a 2 ft x 4 ft fixture installed at a 2 ft x 2 ft ceiling area.
Picture 4: 2 x 4 ft Fluorescent Light
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