请教EN60335-1中的3.4.4

59779520 · 发表于 2011-12-4 18:02:47

谁能举例解释保护特低电压电路?怎么接地啊?

59779520 · 发表于 2011-12-4 18:03:22

斑竹啊!帮我解答

toolkiller · 发表于 2011-12-5 10:29:54

3.4.4
protective extra-low voltage circuit
earthed circuit operating at safety extra-low voltage which is separated from other circuits
by basic insulation and protective screening, double insulation or reinforced insulation
NOTE 1 Protective screening is the separation of circuits from live parts by means of an earthed screen.
NOTE 2 A protective extra-low voltage circuit is also known as a PELV circuit.

Denny.Xie · 发表于 2011-12-5 11:36:24

3.4.4
protective extra-low voltage circuit
earthed circuit operating at safety extra-low voltage which is separated from other circuits
by basic insulation and protective screening, double insulation or reinforced insulation
NOTE 1 Protective screening is the separation of circuits from live parts by means of an earthed screen.
NOTE 2 A protective extra-low voltage circuit is also known as a PELV circuit.

MS168 · 发表于 2011-12-5 17:18:39

谢谢楼上几位的分享。。辛苦了

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