起重机提升线速度和功率测试代码

[中文适用范围]： 本文件主要适用于通过卷筒和提升绳索机构提升负载的移动式起重机。如果负载可以保持恒定并且提升线行进距离足以满足规定的线速度测量的精度，则它可用于确定其他提升线机构的提升线速度和功率。此推荐做法适用于所有机械@液压@和电动提升机构。目的 该测试的目的是确定移动式起重机在卷筒上绳索层处于指定条件下提升指定负载时产生的提升线速度。指定负载以磅为单位报告，提升线速度以英尺每分钟为单位报告。导出的值可用于计算提升线功率。 [外文原描述]： This document applies primarily to mobile cranes that lift loads by means of a drum and hoist line mechanism. It can be used to determine the hoist line speed and power of other hoist line mechanisms if the load can be held constant and hoist line travel distance is sufficient for the accuracy of the line speed measurements prescribed. This recommended practice applies to all mechanical, hydraulic, and electric powered hoist mechanisms.