Detecting resistance faults
- 专利权人:
- BRITISH GAS CORPORATION
- 发明人:
- BROWN, LEONARD
- 申请号：
- US19850788029
- 公开号：
- US4725778(A)
- 申请日:
- 1985.10.16
- 申请国别(地区):
- 美国
- 年份:
- 1988
- 代理人:
- 摘要：
- Resistance faults, for example across insulating joints of cathodically protected pipelines may be evaluated by comparing magnetic field strengths associated with a test current of predetermined frequency flowing into and away from the joint.
- 来源网站：
- 中国工程科技知识中心
