山地施工中地震勘探仪器的雷电防护
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摘要
野外地震勘探常常受到雷电的困扰,轻则严重影响勘探施工的顺利进行,重则对勘探仪器设备造成损坏。针对雷电的困扰,除尽量避免在雷雨天或雷雨季节施工外,加强地震勘探设备的雷电防护也是十分重要的:一是要采用带屏蔽层的传输电缆;二是要加强对数据采集站的雷电屏蔽;三是要保证数据采集设备的接地良好;四是在条件允许的情况下在施工区域设置临时避雷装置。
Thunder and lightening often trouble field seismic exploration and sometimes damage exploration instru- ments.To solve the problem,besides trying to avoid construction in thundering days or seasons,it is very important to strengthen thunder and lightening protection of the seismic recording system.Firstly,employ screened transmit- ting cable.Secondly,lay stress on screened data acquisition station from thunder and lightening.Thirdly,ensure good ground connection of data acquisition equipment.And lastly,install temporary lightening arresters in construc- tion location if permitted.
Thunder and lightening often trouble field seismic exploration and sometimes damage exploration instru- ments.To solve the problem,besides trying to avoid construction in thundering days or seasons,it is very important to strengthen thunder and lightening protection of the seismic recording system.Firstly,employ screened transmit- ting cable.Secondly,lay stress on screened data acquisition station from thunder and lightening.Thirdly,ensure good ground connection of data acquisition equipment.And lastly,install temporary lightening arresters in construc- tion location if permitted.
引文
[1]林维勇．GB50057—94．建筑物防雷设计规范[S]．北京：中国计划出版社，2000．
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