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Lighting in

corridors

ABT Car parking - Level 2

Step 2.2: Check the current lighting

 

Visual or fixture specification check:

 

1.

Unified Glare Rate UGR = 28

 

 

2.

Light uniformity Uo = 0.4

 

 

3.
Color rendering Ra ≥ 80
Car park light uniformity

 
Glare

When unified glare rating (UGR) of luminaire is >28

(maximum) occupants experience the lighting as

uncomfortable and blinding.

Car parking glare

 
Light Uniformity

When the uniformity (Uo) is < 0.4 (minimum)

occupants experience shadows and contrasts, feeling

uncomfortable and have difficulty recognizing faces.

Step 3: Check state of installation

 

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