Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册The pole assembly (19.) consists of the upperinterrupter support (20.) with the upper terminal (27.),the vacuum interrupter (30.), the lower interruptersupport (40.) with the lower terminal (29.), the clamp(29.2) with the flexible connector (29.1) and angledlever (48.6). The centering piece (28.1) and the struts(28.) relieve the vacuum interrupters of external forcessee (Fig. 2/4).Fig. 2/4 3AH3 pole assembly图. 2/4 3AH3 极柱装配真空断路器极柱装配 (19.) 包括带有上接线终端 (30.) 上极帽 (27.), 带有下接线终端 (29.) 下极帽, 以及连接于软连接 (29.1) 的导电夹 (29.2) 和拐臂 (48.6). 衬垫 (28.1)和 绝缘支撑杆 (28.) 减弱了施加于真空灭弧室的外部压力(见图.2/4).- 2/3 -