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Illumination Survey
Conducting a light survey is essential for identifying and mitigating potential hazards related to excessive or insufficient lighting in the workplace. Adequate lighting significantly influences employee productivity, allowing them to read safety instructions and labels effectively. Ensuring the right light levels at workstations is crucial, as overly bright or dim lighting can be unsuitable.
Purpose of Illumination Survey
In short purpose to Illumination survey is study of lighting condition in work environment. To identify too much bright light, Glare, Low light and flickering light to avoid potential hazards Identify who can be harmed Evaluation of risks and hazards and suggestion to improvement employee safety.
Key Elements in Illumination Testing
- Light Intensity Measurement
- Light Uniformity
- Color Representation
- Glare Analysis
- Energy Efficiency
- Compliance with Standards and Regulations
- Lighting Design and Analysis
- Outdoor Lighting Evaluation
Lighting Standards for Places:
| Area and Work-room. | Minimum intensity of illumination in Lux |
|---|---|
| Stock-yards, main entrance and exit roads, cat-walks of outdoor plants, coal unloading and storage areas | 20 |
| Passage-ways, and corridors and stairways, warehouses, stock-rooms for large and bulky materials, platforms of outdoor plants, basements | 50 |
| Engine and boiler rooms, passengers and freight elevators, conveyers crating and boxing departments, store-rooms and stock-rooms for medium and fine materials, lockers rooms, toilet and wash rooms. | 100 |
Workplace Lighting standards as per Work type:
| Nature of work | Examples | Minimum intensity if illumination in Lux |
|---|---|---|
| Where discrimination of detail is not essential | Handling of material of coarse nature, rough sorting, grinding of clay products, handling coal or ashes. | 50 |
| Where slight discrimination of detail is essential. | Production of semi-finished iron and steel products, rough assembling, milling of grains, opening, carding, drawing, slubbing, roving, spinning (ordinary) counts of cotton. | 100 |
| Where moderate discrimination of detail is essential. | Medium assembling, rough bench work and machine work, inspection and testing of products, canning, sawing, venering planning of lumber, sewing of light coloured textiles and leather products, weaving light thread, warping, slashing doubling (fancy) spinning fine counts. | 200 |
| Where close discrimination of detail is essential. | Medium bench and machine work fine testing, flour grading, leather finishing, weaving cotton goods, or light coloured woollen goods, welding sub-assembly, drilling, rivetting, book- binding and folding. | 300 |
| Where discrimination of fine detail is involved under a fair degree of contract for long periods of time. | Fine assembling, fine bench and machine work, fine inspection, fine polishing and bevelling of glass, fine wood working, weaving dark coloured woollen goods. | 500 |
| Where discrimination of extremely fine detail is involved under conditions of extremely poor contrast for long periods of time. | Extra fine assembling, extra fine inspection, testing of extra fine instruments, jewellery and watch manufacturing, grading and working of tobacco products, dark cloth hand tailoring, final perching in dye works, make-up and proof reading in printing plants. | 1000 |