IEC 60137:2008给出了用于电气设备、机械、变压器、开关设备和三相交流系统装置的绝缘套管的特性和测试，设备的最高电压高于1000 V，电源频率为15 Hz至60 Hz（包括60 Hz）。本标准中对变压器套管的特殊要求和试验也适用于电抗器套管。与上一版相比，此版本包括以下重大技术变更: -变压器套管的长持续时间工频； -适用于变压器和GIS套管的型式和验收试验的特殊要求； -安装在变压器和GIS上的套管的特定绝缘水平； -根据IEC指南111，增加了与安全和环境相关的条款；和 -修订了海拔校正程序（>1 000 m）。

IEC 60137:2008 gives the characteristics and tests for insulated bushings intended for use in electrical apparatus, machinery, transformers, switchgear and installations for three-phase alternating current systems, having highest voltage for equipment above 1 000 V and power frequencies of 15 Hz up to and including 60 Hz. Special requirements and tests for transformer bushings in this standard apply also to reactor bushings. This edition includes the following significant technical changes with respect to the previous edition:
- Long duration power-frequency for transformer bushings;
- Special requirements for type and acceptance tests applicable to transformer and GIS bushings;
- Specific insulation levels for bushings fitted to transformers and GIS;
- According to IEC Guide 111, clauses relating to safety and the environment have been added; and
- The altitude correctino procedure has been revised (> 1 000 m).