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根据UL 60065中的条款,注意红色部分:
. x" o. p" d+ \8 X- ~4 F7 R9 T20.1 DU Electrical components and mechanical parts/ H3 ~! f7 p9 N: N( z' I
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Electrical components and mechanical parts with the exception of those in b), shall comply with
* s4 w8 t+ Z1 ]" v7 c- wthe requirements of 20.1.1, 20.1.2, 20.1.3 and 20.1.4.
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b) The following parts which would contribute negligible fuel to a fire:. Y6 j7 W2 O; u( ~. a6 j1 n
– small mechanical parts, such as mounting parts, gears, cams, belts and bearings, if$ l) }+ h. b4 y# A$ ^( z/ c* }
the mass of the non-metallic material of each part does not exceed 4 g, excluding
+ v( [7 j+ I3 q0 ]metal, glass and ceramic;( E# ]& r# b6 W; [, D
– parts such as projection TV lenses, loudspeaker parts, external accessories, and
; M, I; b( h; y3 ^/ J, h% t+ bfibrous materials less than 0.25 mm thick;
8 ^- |- ^2 u. p4 S9 H– small electrical components such as:% D2 E( h; K9 [3 _8 d% e
• integrated circuits, transistors, optocoupler packages;
) i! \, U, U n4 q• capacitors with a volume not exceeding 1 750 mm3,7 B2 i: {4 D9 ^0 v5 a8 m
provided these components are mounted on material of flammability category V-1 or
' Y% q; F% N( d1 @4 zbetter according to UL 94.. ^. o: d0 G& u; Y x
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我觉得你说的纸筒,这部分应该没有问题的。你可以再仔细看一下标准中这部分的。
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/ l6 Y2 X6 e& i0 w) c不过你的变压器理论上输出是大于15W,你可以自己计算一下的。
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