本标准提供了一种使通电电缆系统经受标准火灾暴露以获得时间额定值的方法。电缆类型包括电力电缆、控制电缆、仪表电缆和通信电缆。验收标准基于规定测试期间电缆的维护功能。

This standard provides a method for subjecting energized cable systems to a standard fire exposure to obtain a time rating. Types of cable include power, control, instrumentation and communication cables. Acceptance criteria are based on the cable maintaining functionality throughout the prescribed test.