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发表于 2014-11-22 09:33
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电源看了报告已经确定是可以的,有LPS 且是UL+CUL认证的,现在的问题是 电动按摩器具外壳是HB的,但产品是连续性工作的,不想换材料,可否有豁免???熟悉的大哥能否给点参考,标准原文如下:
5 Z3 b; }/ u+ w+ O' {& V( N) ZUL1647 7.2.1: ! z5 H1 D7 N: q. _2 x
b) Class HB minimum for a portable, attended, intermittent duty, household appliance; or
2 o9 [$ w& A- G0 `Exception No. 1: Class V-2 minimum for a polymeric material used to enclose heating elements,
0 P& r/ `. [* m" kincluding heating wire.9 J' l* _3 }, i- A/ q& x
Exception No. 2: In lieu of the required HB flame rating for portable attended, intermittent duty,
h9 s# H" b* @2 Y8 ~ u5 e3 Whousehold appliances, the polymeric enclosure may be subjected to the 12 mm or 20 mm
( W+ f9 k/ w8 W5 o$ F0 fEnd-Product Flame Test in accordance with UL 746C.) T! K! t2 D4 U! e+ z4 T/ P
c) Class V-2 minimum for an appliance other than mentioned in (a) and (b)." I3 E6 m5 m( M0 L+ _/ [
Exception: In lieu of the required minimum V2 flame rating for appliances other than as specified
$ ~, Q. k. p5 Z" P' nin (a) and (b), the polymeric enclosure may be subjected to the 12 mm or 20 mm End-Product3 P+ V+ A/ q9 p1 T4 f9 U
Flame Test in accordance with UL 746C. |
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