| 接地保护与接零保护安全性比较 |
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| 引用本文： | 赵秋生. 接地保护与接零保护安全性比较[J]. 工业安全与环保, 2009, 35(3) |
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| 作者姓名： | 赵秋生 |
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| 作者单位： | 中国劳动关系学院安全工程系,北京,100037 |
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| 摘 要： | 我国现存标准或规范仍在推荐使用接零保护(TN系统),这是一种人为增大故障电流、以过流保护装置(过流保护断路器或熔断器)对漏电进行防护的方法.在漏电保护器RCD广泛应用的今天,完成漏电防护的首要装置是RCD,而不再是过流保护装置.通过基于RCD的漏电防护水平评价和对本质安全性的综合比较, 得出的结论是接地保护(TT系统)比接零保护(TN系统)更安全.
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| 关 键 词： | TT系统 TN系统 过流保护装置 漏电保护器 本质安全性 |
Comparison to the Safety Performances of Connecting Zero Protection and Connecting Earth Protection |
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| ZHAO Qiu-sheng. Comparison to the Safety Performances of Connecting Zero Protection and Connecting Earth Protection[J]. Industrial Safety and Dust Control, 2009, 35(3) |
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| Authors: | ZHAO Qiu-sheng |
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| Affiliation: | Department of Safety Engineering;China Institute of Industrial Relations Beijing 100037 |
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| Abstract: | Existing standards or codes have still recommended to use connecting zero protection(TN system) in China which is a method to protect current leakage by over-current protective devices(over-current breaker or fuse),through increasing fault current deliberately.With the residual current protective device(RCD) being used widely now,the basic device used to perform the current leakage protection is RCD,rather than over-current protective devices.Though evaluation of current-leakage protection based on RCD and ... |
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| Keywords: | TT system TN system over-current protective device RCD essence safety |
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