ASTM F1207M监测有源电气系统接地电阻用电绝缘监测器的规格(米制）
日期:2012-02-08 12:09
c ungrounded systems or ac ungrounded systems with dc components unless ac to dc conversion is isolated from the monitored system with transformers.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is th
4/5 下一页 上一页 首页 尾页
返回
刷新
WAP首页
网页?/a>
登录
09/15 10:06