标准摘要
[中文适用范围]： IEC 60331 的这一部分规定了用于测试在遭受火灾和机械冲击时保持电路完整性所需的电缆的测试设备，其中测试条件基于具有与标称 850℃温度相对应的受控热输出的火焰。 ？它适用于测试外径大于 20 毫米的电缆。它还在附件 A 中提供@用于测试的燃烧器和控制系统的验证方法。 [外文原描述]： IEC 60331-2:2009 specifies the test apparatus and procedure and gives the performance requirements, including recommended flame application times, for low-voltage power cables of rated voltage up to and including 0,6/1,0 kV and control cables with a rated voltage which are required to maintain circuit integrity when subject to fire and mechanical shock under specified conditions. It is intended for use when testing cables not greater than 20 mm overall diameter. NOTE Cables of larger diameter should be tested using the apparatus, procedure and requirements of IEC 60331-1. This standard describes the means of test specimen preparation, the continuity checking arrangements, the electrical testing procedure, the method of burning the cables and the method of shock production, and gives requirements for evaluating test results. Annex A provides the method of verification of the burner and control system used for the test. Requirements are stated for an identification that may optionally be marked on the cable to signify compliance with this standard. It has the status of a horizontal standard in accordance with href="https://webstore.iec.ch/publication/7516">IEC Guide 104 .
英文名称Tests for electric cables under fire conditions - Circuit integrity - Part 2: Test method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm