给出了三种E型玻璃套管的要求，采用编织或针织结构，具有连续的硅橡胶涂层，并根据其击穿电压进行区分（活页400:高击穿电压；活页401:中等击穿电压；活页402:低击穿电压）。已发现这些套管适用于高达180°C的温度。 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。

Gives the requirements for three types of E-type glass sleeving using either braided or knitted construction, with a continuous silicone elastomer coating and differentiated by their breakdown voltage (sheet 400: high breakdown voltage; sheet 401: medium breakdown voltage; sheet 402: low breakdown voltage). These sleevings have been found suitable for temperatures up to 180 °C. 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.