给出了基于硅树脂和不同增强材料的电气用工业刚性层压板的要求。 给出了它的应用和区别性质。 符合本规范的材料符合既定的性能水平。然而，用户为特定应用选择材料时，应基于该应用中充分性能所需的实际要求，而不是仅基于本规范。 在本次修订的IEC 60893系列规范中，包括了新的材料类型，对一些现有类型的性能要求进行了更改，增加了一种测试介电常数和损耗因数的新方法，并将每种类型的所有非规范数据移至新的第4部分文件——IEC 60893-4:典型值。

Gives the requirements for industrial rigid laminated sheets for electrical purposes based on silicone resins and different reinforcements. Applications and distinguishing properties are given. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. In this revision of the IEC 60893 series of specifications, new material types have been included, changes have been made to the property requirements of some existing types, a new method for testing permittivity and dissipation factor has been added, and all non-specification data for each type has been moved to a new Part 4 document - IEC 60893-4: Typical values.