防腐绝缘层的检漏电压
Voltage for Detecting Holidays in Anti-corrosive Layer
浏览(1717) 下载(0)
- DOI:
- 作者:
- 王林章
Wang Linzhang
- 作者单位:
- 石油部管道科学研究院
- 关键词:
- 摘要:
- 石油管道防腐绝缘层通孔的检测电压,只与涂层的厚度有关,而与通孔的形式无关。笔者对通孔的检漏电压,防腐层厚度,检漏电极形状之间关系进行了探讨,并对现行的检漏电压标准提出了不同意见。认为:在均匀电场中,无论是直流电压、交流电压（峰值）,气隙击穿电压应该用 U=AS+BS0.5表示。根据 U=AS+BS0.5可以确定检测涂层通孔的检漏电压,并以此制定检漏电压标准。并且指出随着薄涂层在防腐工程上应用的增多,制定标准已是当务之急,并呈请有关职能部门给予注意。
The voltage for detecting holidays in anti-corrosive layer on oil pipeline arerelated to the thickness of the layer and not to the form of holidays.The authohas studied the relationship between the detected holidays, the thickness of anti-corrosivelayer and the pattern of detecting electrode and puts forward some suggestionsabout the detecting voltage specifications now applied. He considers that both DCand AC voltages and breakdown voltages of air space should be expressed byU=AS+BS0.5.The voltage for detecting holidays can be determined by this for-mula: The author also points out that at the present time, because of the rapidlyincreasing application of coating materials in construction field, establishment ofstandard is a matter of urgency The author also expects the authorities concerned should pay more attention to this problem.1987,4(4): 9-11参考文献：
(1)《石油施工技术》19 81年N02 P15～16
(2) 李标荣、陈志雄编《电工绝缘材科学》中国工业出版社
(3) 清华大学、西安交通大学《高电压绝缘》第一版，电力 工业出版社1980年12月
(4) 石油部标准SY J 8-84
(5) 缪始森、孙嘉平等译《高电压工程》第1版水力电力出版社，1984