The effect of increasing the illumination on operators' visual performance in the control-room of a combined cycle power plant

Seyyed Abolfazl Zakerian; Saeid Yazdanirad; Seifollah Gharib; Kamal Azam; Asma Zare

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자료유형: 학술저널

저자정보: Seyyed Abolfazl Zakerian (Tehran University of Medical Sciences) Saeid Yazdanirad (Tehran University of Medical Sciences) Seifollah Gharib (Tehran University of Medical Sciences) Kamal Azam (Shiraz University of Medical Sciences) Asma Zare (Tehran University of Medical Sciences)

저널정보: 대한직업환경의학회 대한직업환경의학회지 대한직업환경의학회지 제30권 제5호

발행연도: 2018.9

수록면: 59 - 65 (7page)

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Background: Lighting is one of the environmental factors affecting the performance of the control room operators. Therefore, the aim of this study was to compare the control room operators’ visual performance in two different illumination conditions at a combined cycle power plant through field-work.
Methods: Sixteen operators in day shift were evaluated with the Freiburg Visual Acuity test (FrACT) software at two lighting systems with different intensities. It includes the first phase with fluorescent illumination system (Power: 40 W, Color Temperature: 4000 Kelvin, Luminous Flux: 2780 Lumen and Model: Pars Shahab) and the second phase with a combined illumination system includes fluorescent and LED (Power: 48 W, Color Temperature: 4000 Kelvin, Luminous Flux: 5400 Lumen and Model: Mazinoor).
Results: Based on the results, visual performance index and visual acuity significantly increased after the intervention (p < 0.001). As to contrast, more lighting significantly reduced the percentage of recognized contrast (p < 0.001) and increased the contrast performance index (p < 0.001).
Conclusions: The results of this study showed that increasing the intensity of light from the values below the allowable limit to the values above the allowable limit would increase the visual indicators in individuals.

#Lighting #Control room #Visual performance #Visual acuity #Power plant

참고문헌 (32)

참고문헌 신청

Zarr Nezhad A / 2013 / Identification of the human errors in control room operators by application of HEIST method (case study in an oil company)

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Berry KA, Stringfellow PF, Shappell SA / 2010 / Examining error pathways: an analysis of contributing factors using HFACS in non-aviation industries / Proceedings of the human factors and ergonomics society annual meeting

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