本标准规定了钢或钢合金管道和设备的阻抗加热系统的应用。它为一般工业应用中这些系统的设计、安装、维护和维修提供了建议。 本标准适用于拟安装在具有潜在爆炸性环境的普通和危险场所的阻抗加热系统。 危险地点包括:加拿大2区；22区；或第一类第二分部；第二类第二分部；CSA C22中所述的III类，第2部分。1.美国一级2区； 和22区；或第一类第二分部； 第二类第二分部；NEC中所述的III类2类。 本标准与其他公认规范和标准一起使用时，旨在涵盖整个阻抗加热系统，包括系统设计、规范、安装、操作、测试、调试和维护。本标准还涉及以下对阻抗加热系统性能重要的相关系统: a） 隔热系统； b） 供电系统； c） 电气接地系统；和 d） 控制和监控系统。

This standard provides for the application of impedance heating systems for steel or steel alloy pipe and equipment. It provides recommendations for design, installation, maintenance, and repair of these systems in general industry applications. This standard applies to impedance heating systems intended to be installed in ordinary and hazardous locations with potentially explosive atmospheres. The hazardous locations include the following: In Canada Zone 2; Zone 22; or Class I, Division 2; Class II, Division 2; Class III, Division 2 as described in CSA C22.1; and In the U.S. Class I, Zone 2; and Zone 22; or Class I, Division 2; Class II, Division 2; Class III, Division 2 as described in the NEC. This standard, when used with other recognized codes and standards, is intended to cover impedance heating systems in its entirety, including system design, specification, installation, operation, testing, commissioning, and maintenance. This standard also addresses the following associated systems which are important to the performance of impedance heating systems: a)Thermal insulation system; b)Electric power supply system; c)Electric grounding system; and d)Control and monitoring system.