本指南建议采取安全措施，防止IV类高功率工业激光系统中使用的无源光学元件和光缆中的热效应、光机效应和相关效应造成的影响。本指南不适用于爆炸性环境。

This guide recommends safety measures that should be taken to help keep passive optical elements and optical fiber cables used in high power industrial laser systems from being affected by optical, opto-machines and related effects. This guide is not applicable for high power industrial laser system used in explosive environment.