标题: 关于加湿机UL998标准问题讨论 [打印本页] 作者: gaoyimin123 时间: 2011-12-19 17:02 标题: 关于加湿机UL998标准问题讨论 加湿机UL998标准中,42.11章与42.12章, 9 o/ d! S2 W9 K/ x- d42.11 For an extra-low-voltage safety circuit, if operation of the product with a short circuit or grounded# u1 n) X$ U: C0 H1 _1 X9 d
circuit may result in unsafe operation of the controlled device, spacings shall be not less than as specified4 f( }" f) n1 x" o U( O8 V
in Table 13.5 f8 a f. E* h# x/ ] Z
42.12 For extra-low-voltage nonsafety circuits, spacings are not specified.% V# D& R5 [6 L. m4 R+ O* `6 O! b' J