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目的 探索湿热环境下劳动战士的安全保障措施。方法 通过环境热强度 (湿黑球温度等 )与人体热紧张指标 (肛温、心率与出汗率 )的关系 ,规定不同热强度与不同劳动强度下为保障战士安全的时限。结果 湿热环境劳动的时间限值划分为生理安全上限与耐受极限两种。生理安全上限时间 :湿黑球温度 (WGT) 32℃时中度劳动 (MW ) <3h、重度劳动 (HW) 1h、停止极重度劳动 (EHW ) ;WGT 31℃时MW 3h、HW 1.5～ 2h、停止EHW ;WGT 30℃时MW 4h、HW 3h、EHW 1h ;WGT 2 9℃时MW不限制时间、HW 4h、EHW 1.5h ;WGT 2 8℃时HW不限制时间、EHW 2～ 4h ;WGT 2 7℃时EHW不限制时间。耐受极限时间 :WGT 32℃时MW 3h、HW 2h、停止EHW ;WGT 31℃时MW 4h、HW 3h、EHW 1h ;WGT 30℃时MW不限时间、HW 4h、EHW 2～ 3h ;WGT 2 9℃时HW不限制时间、EHW 4h ;WGT 2 8℃时EHW不限制时间。结论 本标准适用于陆军在热环境下劳动的安全保障 ,其他军兵种也可对照使用以预防中暑。
Objective To explore the safeguards of labor fighters in hot and humid environment. Methods According to the relationship between the thermal intensity of the environment (wet black ball temperature, etc.) and the thermal stress index (rectal temperature, heart rate and sweating rate) of the human body, the time limit for ensuring the safety of fighters under different heat intensities and different labor intensity is stipulated. Results The time limit of labor in hot and humid environment is divided into two categories: upper limit of physical safety and tolerable limit. Physiological safety cap time: Wet bulb temperature (WGT) Moderate labor (MW) <3h at 32 ° C, HW for 1h, EHW stopped; WGT MW at 31 ° C 3h, HW 1.5 ~ 2h , Stop EHW; WGT MW 4h at 30 ℃, HW 3h, EHW 1h; WGT 2 MW at MW without limitation, HW 4h, EHW 1.5h; WGT 2 HW at 8 ℃ without limitation, EHW 2 ~ 4h; WGT EHW does not limit the time at 7 ℃. Tolerance limit time: WGT MW 3h at 32 ℃, HW 2h, stop EHW; WGT MW 4h at 31 ℃, HW 3h, EHW 1h; WGT at 30 ℃ for any time, HW 4h, EHW 2 ~ 3h; WGT 2 HW does not limit the time at 9 ℃, EHW 4h; WGT 2 EHW at 8 ℃ does not limit the time. Conclusion This standard applies to the army in the hot environment of labor security, other arms and arms can also be used in comparison to prevent heat stroke.