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本刊去年第六期载有“电器设备接零保护系统中的插座接法”一文(P 54),现提两点改进建议供作者及大家参考。法)所示: 1)在进户线处(双零线并接点附近)加装零线辅助接地装置。接地极利用建筑物主钢筋,在几乎不增加费用的情况下即可获得优良的低值接地电阻。 2)将双零线未端 C’D’两点并接在一起。这样,当C或D任一点断线时,都不会引起其他电器外壳带电。而两线同时都断如图(实为该文中图5和图6的综合画
The sixth issue of last year contained a paper entitled “Connection of Receptacles in ZERO Protection System of Electrical Equipment” (P 54). We will make two suggestions for improvement for reference by authors and Members. Act): 1) In the line of entry (double zero line and near the junction) to install zero-line auxiliary grounding device. Grounding With the main steel reinforcement of the building, excellent low-value ground resistance is achieved with little additional cost. 2) The two zero-zero line C’D ’and two connected together. In this way, when C or D is disconnected at any point, will not cause other electrical shell charged. The two lines at the same time as shown in Figure (in fact, the article in Figure 5 and Figure 6 of the composite painting