如题，哪位好心大哥有这个标准，这个FR2具体要求是什么？在线等啊
兄弟，舍近求远了啊！ 最近如何
System circuit (functional)
兄弟，舍近求远了啊！ 最近如何 ？请哥吃饭吗？
System circuit (functional) integrity in accordance with NBN 713 020
The test specifies fire performance of building materials and products. The cables are installed in 3 x 3 testing room They are installed on cable trays and undergo the flame action up to 1000°C. The cables are then classified according to the maximum time for resistance to fire (denoted by Rf1, Rf 1 1/2, Rf2 in which the number represents the time duration).
迷儿:兄弟，舍近求远了啊！ 最近如何 ？请哥吃饭吗？
Fire Testing
System circuit (functional) integrity in accordance with NBN 713 020
The test specifies fire performance of building materials and products. The cables are installed in 3 x 3 testing room They are installed on cable trays and undergo the flame action up to 1000°C. The cables are then classified according to the maximum time for resistance to fire (denoted by Rf1, Rf 1 1/2, Rf2 in which the number represents the time duration).
我想要整个标准，有没？这个FR2和Rf2什么区别？