Good lighting combines three aspects: high luminous efficiency, long life and good color rendering.
The lighting of industrial premises should:
- Facilitate the Execution of a Task: the Visual Performance Concept.
Normal vision can only be exercised with minimum light. A good level of lighting allows for a good productivity, which means fewer errors or accidents, and reduced eyestrain.
- Ensure Well-Being: the Fundamental Concept of Visual Comfort.
In addition to the required level of illumination, it is also essential to ensure the following:
- A good quality of the light emitted by the sources
- The uniformity of the illumination
- The adequate balance of illumination to avoid glare in particular.
Illuminating the industry work areas
The illumination level has to be adapted to the nature and the precision of the work that needs to be performed. To illuminate the work area, it is reccommended to use local lighting, adapted to complement the general lighting of the premises.
- For inland circulation: 40 Lux Minimum Illumination
- For changing rooms and bathrooms: 120 Lux Minimum Illumination
- For blind premises assigned to permanent work: 200 Lux Minimum Illumination
Lighting for Outdoor Spaces:
- For taxiways: 10 Lux Minimum Illumination
- For outdoor areas assigned to permanent work: 40 Lux Minimum Illumination
Lighting for Specific Work Areas:
- For average mechanics and office-based typing work: 200 Lux Minimum Illumination
- For machine processing and office-based drawing work: 300 Lux Minimum Illumination
- For fine mechanics, engraving, drawing and color comparison: 400 Lux Minimum Illumination
- For precision engineering, fine electronics and various controls: 600 Lux Minimum Illumination
The level of illumination required in the industry depends on:
- The size of the details that need to be observed
- The contrast between the object / form and the bottom (the greater the contrast, the higher illuminance is required).
The Following Aspects Must Also Be Considered :
The speed of the work execution
- The movement of the monitored objects (the faster the movement, the higher illumination is required)
- The age of the operators
In industries which require fine and precised mechanical tasks, as well as the electronics industry, specific lighting reinforcements on the workstations must be installed. Some industrial sectors, the chemical sector in particular, require the use of protected luminaires.
Industries in which color rendering is extremely important, such as the printing industry, require the use of appropriate lighting lamps. In other industries such as paint manufactoring, plastics or resins, the industrial process requires the use of special UV types or IR light emissions.