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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/ u9 S/ x, V% }
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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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1.2.42.2
4 `$ B' o* P+ E2 `6 s" GSELV (safety extra low voltage)5 O: N( M3 D7 {! {/ ^" d
ELV in a circuit which is insulated from the mains supply by an insulation not less than that
* F' x8 F* q4 ^! }) W* A, O, A! Ebetween the primary and secondary circuits of a safety isolating transformer according to
1 }9 k+ P5 a! \5 c$ Q8 O4 pIEC 61558-2-6 or equivalent2 p7 R4 V, l) M7 p4 ~+ H5 J
& F7 F9 O- z* g2 @* s/ NNOTE :
1 v' ]/ n8 H F* oMaximum voltage lower than 50 V a.c. r.m.s. or 120 V ripple free d.c. may be specified in particular+ E2 q/ t+ T* E+ J
requirements, especially when direct contact with current-carrying parts is allowed. |
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