Rothoblaas - 防坠落系统和安全装置 Page 11
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高空作业原则 垂直净空 采用防坠落系统作业时,必须考虑垂直净空: TA = LC + Lmax + HA + DSIC (+ f) TA 垂直净空 Lmax 能量吸收器的最大延伸(最长.1,75.m). DSIC 安全距离(最小.1.m) LC HA f ..[m] 当绳索开始阻止坠落时,从屋顶固定锚点到安全带固 定锚点的绳索长度 LC 从安全带的胸骨/背侧锚点到操作者足部的平均高度 为.1,50.m Lmax 坠落可能导致的系统变形 TA HA DSIC 坠落系数 坠落系数表示坠落的危险程度: FC = H / L FC 坠落系数 .L 系绳/连接装置的长度 H 坠落期间失去的高度. 2m 2m 2m 0m 0m 0m -2m -2m -2m . 由等式得出的值必须介于.0.和.2.之间,其中.2.表 示最大坠落系数。 坠落系数的值越低,对操作员身体的冲击力就越 小。如果坠落系数的值高,则会造成减速度高,令 人体难以承受,并对操作员造成严重伤害。 FC0 无能量吸收器 有能量吸收器. FC1 FC2 ...... . . 高空作业原则 | 11
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