Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
你的位置:首页 > 新闻动态 > 技术动态

真空断路器的寿命关乎产品的好坏

2013/11/15 10:14:01      点击:

对于大型的或者是精密型的机械设备来说,使用寿命往往关系着产品质量的好坏问题,这也是我们一直比较关心的。
      机械寿命是高压真空断路器产品质量的主要考核指标。根据相关资料报道,其中一个主要问题是机械寿命达不到企业标准规定值,机械特性主要数也超出产品技术条件规定范围。
     在报道中关于“免维护”的问题。现在对真空断路器的广告宣传、产品样本及使用说明书中,普遍谈到该产品"免维护"一词,实际上不现实的。高压真空断路器由于安装有质量相对较好的真空灭弧室,其电气性能和机械性能均有明显的提高,现场安装、维护比较简便,但也绝不是"免维护"。
     每一种形式的真空断路器,从结构上来讲,都是由上百种零部件组成,有些部分零部件需要自行设计、加工,而相当一部分则是依靠外协。依据标准的要求,这些零部件的材质选型、工装、工艺、检验等都应为"维护量小"、"不检修周期",比较妥当,这样才能保证各个环节到整体产品的电气和机械性能。

奇米影视7777狠狠狠狠影视