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字数:22205,页数:42 附任务书,开题报告
摘 要
电能是现代工业生产的主要能源和动力。电能的输送的分配既简单经济，有利于实现生产过程自动化。因此，电能在现代工业生产及整个国民经济生活中应用极为广泛。电能关系到国家财产和人身的安全。加之用之广泛，因此，找到安全的防事故的使用方法是十分必要的。
关键词： 安全电流;安全电压;电气接地
Electrical equipment and earth leakage protection
Chen Juan
0501 Electrical automation
Abstract: Energy modern industrial production is the major energy and power. The distribution of electric energy transmission is simple economy, conducive to the realization of the production process automation. Therefore, the power in modern industrial production and life in the national economy as a whole is extremely wide application. Energy related to state property and personal safety. In addition to the extensive, therefore, to find safety and accident prevention of the use is necessary. Key words: safety current; security voltage; electrical grounding.
目 录
第一章 安全电流和安全电压 ...............................................13
1.1安全用电和安全电压.................................................... 13
1.2 安全电压............................................................ 15
第二章电气接地 ..........................................................18
2.1接地装置 ..............................................................18
2.2保护接地.............................................................. 18
2.3不等长接地体技术 ......................................................19
2.4接触电势和接触电压 ....................................................20
2.5跨步电势和跨步电压.................................................... 21
2.6中性点、零点和中性线、零线............................................ 21
2.7接地和接零............................................................ 21
2.8防雷接地.............................................................. 23
第三章电气接地的作用及分类.............................................. 25
3.1电气接地的作用 ........................................................25
3.2 电气接地的分类 .......................................................25
3.3 电气接地的范围 .......................................................27
3.4电气设备接地技术原则 ..................................................28
3.5接地装置的技术要求 ....................................................28
3.6根据电压大小采取相应接地.............................................. 31
3.7 接地系统.................................................... .........36
3.8 地线反击电压 .........................................................36
第四章 接地电阻的组成及降组..............................................39
4.1接地电阻构成...........................................................39
4.2不等长接地体技术.......................................................40
4.3化学降组剂的应用.......................................................40
4.4接地电阻测量方法.......................................................41
结束语.................................................... ...............42
致 谢................................................................... 42
参考文献................................................................. 43
