1.1 本标准涵盖了电气工人带电作业所用绝缘梯的规范和资格测试。 1.2 这些绝缘梯通常用于在架空电力线结构上提供通道，并便于使用带电线路工具、徒手方法或两者结合进行带电线路工作。 1.3 这些梯子用于提供水平、垂直或倾斜位置的通电电源线。 1.4 梯子可以是结构安装的、底座支撑的或由起重机或类似装置支撑的电缆。 1.5 钩梯通过两个挂钩或一个挂钩旋转附件定位在结构上。 1.6 梯子的使用和维护超出了本规范的范围，尽管了解正确使用带电梯子的重要性至关重要。 1.7 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.8 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This standard covers the specification and qualification testing of insulating ladders used for performing live line work by electrical workers. 1.2 These insulating ladders are used to provide access, generally on overhead power line structures and to facilitate live line work with live line tools, bare hand methods, or a combination of both. 1.3 These ladders are used to provide access to energized power lines in either a horizontal, vertical, or inclined position. 1.4 The ladder may be structure-mounted, base-supported, or cable-supported by a crane or similar device. 1.5 Hook ladders are positioned on the structure by two hooks or by a hook swivel attachment. 1.6 The use and maintenance of the ladders are beyond the scope of this specification although it is critical to understand the importance of proper application rigging of a live line ladder. 1.7 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.