盘形悬式绝缘子是使用最普遍和最重要的一种线路绝缘子， 这种绝缘子由铁帽 、绝缘瓷件 和脚用水泥胶合剂胶合而成。 钢脚及铁帽与胶合剂接触的表面薄涂一层缓冲层，一般为沥青，钢脚顶部瓷件之间有弹性衬垫 。瓷件表面一般上白釉，铁帽和钢脚表面全部热镀锌。 帽下口边缘与绝缘件之间留有适当间隙，以避免材料膨胀时绝缘件受应力损坏。
Disk suspension insulator is one of the most common and important line insulators, which is made of iron cap, insulating ceramic parts and feet cemented with cement. The surface of steel foot and iron cap contacted with cementing agent is coated with a buffer layer, which is generally asphalt, and there is an elastic liner between the porcelain parts on the top of steel foot. Porcelain surface is usually covered with white glaze, iron cap and steel foot surface are all hot-dipped galvanized. There is an appropriate gap between the lower edge of the cap and the insulator to avoid the stress damage of the insulator when the material expands.
There are two main types of disc suspension ceramic insulators: spherical socket connection and groove connection. Spherical socket connection structure is non-directional and easy to assemble and disassemble. Especially, it is easy to replace insulators on live. Therefore, spherical socket connection mojuljs.37ix.com.cnzaoxingcz.37ix.com.cnwww.baodingjiaju.cnstructure is generally used in high hengshui.75ix.cnpaishuigou.37ix.com.cnyamodai.37ix.com.cnvoltage, ultra-high voltage and ultra-high voltage lines. The slot connection structure is simple in connection with fittings, but it is not convenient for live operation. It is generally used in low voltage grade lines in our country. In order to ensure that the insulators do not fall off from the string in operation, each insulator is equipped with locking device, in which the locking pin is used in the spherical socket connection structure, the cylindrical pin is used in the groove connection structure, and the opening pin or the humpback pin is used to lock.