The effect of increased light intensity on workload, sleepiness, eye fatigue, and the degree of satisfaction of individuals from the light conditions in the control room of a power plant

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ZARE ASMA; Malakouti Khah Mahdi; GAROSI EHSAN; Gharib Seifollah; Zakerian Sayed Abolfazl

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Journal: Journal of Health and Safety at Work Year:2018 | Volume:8 | Issue:3 Page(s): 237-250

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Title

The effect of increased light intensity on workload, sleepiness, eye fatigue, and the degree of satisfaction of individuals from the light conditions in the control room of a power plant

Author(s)

Keywords

LightingQ3

Control RoomQ1

WorkloadQ1

SleepinessQ1

Visual FatigueQ1

Satisfaction of LightQ1

Abstract

Introduction: Control Room is one of the most important working environments that require optimal performance of individuals to minimize errors. Lighting is one of the environmental factors affecting the operation of the Control Room operators. Providing optimal Lighting in the Control Room is very important. The purpose of this study was to determine the effect of light on Workload, Sleepiness, eye fatigue, and satisfaction of individuals from light conditions. Material and Method: This was an interventional study conducted in a Control Room of a power plant. Intervention in the Control Room Lighting was performed with two Lighting systems including fluorescent lamps (4000 Kelvin, 200 lux) and LED lamps (4, 000 Kelvin, 400 lux). Sixteen operators were evaluated under the two Lighting systems in terms of Workload, Sleepiness, eye fatigue and satisfaction of individuals from light conditions. Result: According to the results, eye fatigue significantly decreased after intervention (p (0. 004>. Also, the higher light intensity, significantly decreased the level of Sleepiness (p <0. 001). In the study of Workload, the amount of mental Workload (p <0. 001) and effort (p <0. 03) decreased significantly, after intervention and the increase in the intensity of light; but physical demand, temporal demand, performance and frustration had no significant difference with the results before intervention. Conclusion: In general, a combination of fluorescent and LED Lighting systems, with 400 lux intensity, can provide optimal functional and mental conditions for Control Room operators. The illumination intensity of 400 lux in terms of Workload, Sleepiness, eye fatigue and the degree of satisfaction of individuals from light conditions provides a much better environmental condition than 200 lux.

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Designing a Health Management Process Model for Hospital Staff (Qualitative Research)

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APA: Copy

ZARE, ASMA, Malakouti Khah, Mahdi, GAROSI, EHSAN, Gharib, Seifollah, & Zakerian, Sayed Abolfazl. (2018). The effect of increased light intensity on workload, sleepiness, eye fatigue, and the degree of satisfaction of individuals from the light conditions in the control room of a power plant. JOURNAL OF HEALTH AND SAFETY AT WORK, 8(3 ), 237-250. SID. https://sid.ir/paper/387240/en

Vancouver: Copy

ZARE ASMA, Malakouti Khah Mahdi, GAROSI EHSAN, Gharib Seifollah, Zakerian Sayed Abolfazl. The effect of increased light intensity on workload, sleepiness, eye fatigue, and the degree of satisfaction of individuals from the light conditions in the control room of a power plant. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2018;8(3 ):237-250. Available from: https://sid.ir/paper/387240/en

IEEE: Copy

ASMA ZARE, Mahdi Malakouti Khah, EHSAN GAROSI, Seifollah Gharib, and Sayed Abolfazl Zakerian, “The effect of increased light intensity on workload, sleepiness, eye fatigue, and the degree of satisfaction of individuals from the light conditions in the control room of a power plant,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 8, no. 3 , pp. 237–250, 2018, [Online]. Available: https://sid.ir/paper/387240/en

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