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《建筑施工》一九八八年第三期发表的汤大元同志的《对电气设备接零保护的两点改进建议》(P.46),有二点不妥之处: 1)汤大元同志建议在进户线处加装零线辅助接地装置。其实在接零保护系统中,必须在电源进户处设置重复接地。汤大元同志建议的零线辅助接地装置就是重复接地装置,在接零系统中是非加不可的。 2)汤大元同志建议在双零线末端,把C’D’两点并接在一起。如果照汤大元同志建议的接法接,漏电
“Building Construction” Comrade Tang Taiyuan published in the third issue of 1988, “Two Suggestions on Improving Zero-protection of Electrical Equipment (P.46)” has two points: 1) Comrade Tang Da-yuan suggested Into the line at the installation of zero-line auxiliary grounding device. In fact, zero protection system, you must set the power at the entrance to repeated grounding. The zero line auxiliary grounding device recommended by Comrade Tang Tai Yuen is a repetitive grounding device that is indispensable in the zero-connection system. 2) Comrade Tang Da-yuan suggested putting C’D ’at the end of the double zero line. If the soup according to Tang Dayuan suggested connection, leakage