IEC 60811-509:2012+A1:2017给出了绝缘体和护套在高温下抗开裂的测试程序。IEC 60811-509:2012取消并取代已撤回的IEC 60811-3-1:19 85第9条。IEC 60811-100:2012附录A中显示了替换件的全部详细信息。与上一版本相比没有具体的技术变化，但请参见IEC 60811-100:2012的前言。本出版物应与IEC 60811-100:2012一起阅读。该合并版本由第一版（2012年）及其修正案1（2017年）组成。因此，除本出版物外，无需下令修订。

IEC 60811-509:2012+A1:2017 gives the procedure for the test for resistance of insulations and sheaths to cracking at an elevated temperature. IEC 60811-509:2012 cancels and replaces Clause 9 of IEC 60811-3-1:1985, which is withdrawn. Full details of the replacements are shown in Annex A of IEC 60811-100:2012. There are no specific technical changes with respect to the previous edition, but see the Foreword to IEC 60811-100:2012. This publication is to be read in conjunction with IEC 60811-100:2012. This consolidated version consists of the first edition (2012) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.