International Journal of Environmental Research and Public Health, Journal Year: 2025, Volume and Issue: 22(3), P. 387 - 387
Published: March 7, 2025
Live-line workers’ physiological and psychological conditions are significantly affected when operating in high-temperature high-humidity environments, influencing both work efficiency safety. Fifteen participants, wearing high-voltage-shielding clothing, were tested a simulated environmental chamber at temperatures of 23 °C, 32 38 relative humidities RH 30%, 50%, 75%. The experiment involved walking speed 5 km/h for 75 min., during which the participants’ skin temperature, core thermal sensation, heart rate, blood oxygen level, sweat cognitive performance measured. results indicated marked increase with rising temperature humidity levels. At °C/RH 75%, reached 38.39 average was 36.8 °C. Significant differences observed across different body regions (p < 0.05), this disparity decreasing as increased. Heart rate also exhibited significant varying 0.05). Specifically, level increased higher humidity, while levels decreased In addition, rose, error response time tasks negative impact on accuracy more pronounced complex tasks. study further found that sensation voting (TSV) remained within range −0.5 to +0.5, comfort zone ranging between 33.4 °C 34.1 It is recommended be maintained 20.8 25.8 Our findings provide theoretical foundation development personal protective equipment live-line workers.
Language: Английский