IEC 60865-1:20 11适用于短路电流的机械和热效应。它包含计算程序:对刚性导体和柔性导体的电磁效应，对裸导体的热效应。对于电缆和绝缘导体，参考例如IEC 60949和IEC 60986。对于直流的电磁和热效应。发电厂和变电站的辅助装置参考IEC 61660-2。只有空调。本标准中涉及系统。第三版取消并取代了1993年出版的第二版，构成了技术修订。与上一版相比的主要变化是: -与刚性导线一起自动重合闸的测定已经修订。-包括跨中滴管对跨的影响。对于垂直电缆连接，现在可以计算到下部固定点上的位移和张力。增加了由拉力引起的基础载荷的附加建议。删除了确定热等效短路电流的子条款（现在是IEC 60909-0的一部分）。删除了电气设备热效应的规定。该标准已经重新组织，并改变了一些符号，以遵循国际标准的概念特征。

IEC 60865-1:2011 is applicable to the mechanical and thermal effects of short-circuit currents. It contains procedures for the calculation of: the electromagnetic effect on rigid conductors and flexible conductors, the thermal effect on bare conductors. For cables and insulated conductors, reference is made, for example, to IEC 60949 and IEC 60986. For the electromagnetic and thermal effects in d.c. auxiliary installations of power plants and substations reference is made to IEC 61660-2. Only a.c. systems are dealt with in this standard. This third edition cancels and replaces the second edition published in 1993 and constitutes a technical revision. The main changes with respect to the previous edition are:
- The determinations for automatic reclosure together with rigid conductors have been revised.
- The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may now be calculated. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (it is now part of IEC 60909-0). The regulations for thermal effects of electrical equipment have been deleted. The standard has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.