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引用第6楼安规007于2011-05-06 17:24发表的 :
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( c$ q6 P* i5 T1 vTNV供电也属于三类吗? 有没有标准依据啊,想看看。
, \/ P$ A8 p: e4 U R/ c! z: h9 R# NTNV电路也算是危险电压啊3 h8 e; {8 S% g3 N
1.2.8.6
+ {6 i8 m% F$ ?# S3 I' QHAZARDOUS VOLTAGE
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) L6 I' S+ P+ W; ~2 @CLASS III EQUIPMENT$ @6 s2 d$ Z% y+ v9 I, g6 c
equipment in which protection against electric shock relies upon supply from SELV CIRCUITS
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: }9 h3 N4 J, A& q) F8 xHAZARDOUS VOLTAGE: voltage exceeding 42,4 V peak, or 60 V d.c., existing in a circuit' L- \$ e; |% ~' J' P
that does not meet the requirements for either a LIMITED CURRENT CIRCUIT or a TNV CIRCUIT
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所以TNV电路时没有HAZARDOUS VOLTAGE。( D& Z( d O. V' d! _
此外,我们的一份报告也是这样写的 |
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