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引用第6楼安规007于2011-05-06 17:24发表的 :& Q6 S5 L& I9 s; S) v
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TNV供电也属于三类吗? 有没有标准依据啊,想看看。& ?; _ H9 y5 |8 Y" Q# s2 e% w
TNV电路也算是危险电压啊
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* C/ N% j6 F0 o7 E& lHAZARDOUS VOLTAGE
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! Q7 f0 _3 o }/ KCLASS III EQUIPMENT
1 P$ o! F( C2 F t# ~$ ~equipment in which protection against electric shock relies upon supply from SELV CIRCUITS, k1 M8 }0 h$ n4 n9 i% b1 j
and in which HAZARDOUS VOLTAGES are not generated
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. H- j3 p" g- WHAZARDOUS VOLTAGE: voltage exceeding 42,4 V peak, or 60 V d.c., existing in a circuit
. ~: i0 s, E' S' S1 l5 C" pthat does not meet the requirements for either a LIMITED CURRENT CIRCUIT or a TNV CIRCUIT7 a0 @: q1 M: U; ` e) K6 e1 l- ?$ k
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所以TNV电路时没有HAZARDOUS VOLTAGE。
- l8 ?; ^, h- u* \5 J" _此外,我们的一份报告也是这样写的 |
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