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这个是针对裸露的输出端子的电压,恒压输出或恒流输出的控制器不得超过25V r.m.s
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无载输出电压不得超过33V r.m.s, 峰值不得超过33的根号2倍。
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具体的SELV具体在EN 60598-1第1.2.42.2章节
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$ N9 Q* t0 V( x! ^ H3 P. i7 |, C1.2.42.2
0 D2 S: |" F% aSELV (safety extra low voltage)
: J% x/ t5 w6 }& VELV in a circuit which is insulated from the mains supply by an insulation not less than that
2 ^: T, ^3 `. N3 Vbetween the primary and secondary circuits of a safety isolating transformer according to
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Maximum voltage lower than 50 V a.c. r.m.s. or 120 V ripple free d.c. may be specified in particular3 x" S) i4 c5 n/ w+ P
requirements, especially when direct contact with current-carrying parts is allowed. |
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