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根据UL 60065中的条款,注意红色部分:9 W! n, b7 D- k v7 R7 n
20.1 DU Electrical components and mechanical parts
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4 _( _! A8 v3 hElectrical components and mechanical parts with the exception of those in b), shall comply with
5 ~+ S E/ o' m7 p& Sthe requirements of 20.1.1, 20.1.2, 20.1.3 and 20.1.4.; x0 b2 P2 T0 L4 i
; d+ ~9 a% s% L r9 Wb) The following parts which would contribute negligible fuel to a fire:( `+ M$ ]3 G8 N: H: f' C
– small mechanical parts, such as mounting parts, gears, cams, belts and bearings, if
+ B N& C2 |; ?0 qthe mass of the non-metallic material of each part does not exceed 4 g, excluding
3 n' X& U( n& G! Ametal, glass and ceramic;& I4 s5 Z8 u+ k L
– parts such as projection TV lenses, loudspeaker parts, external accessories, and
& k0 q8 _' b/ F) \fibrous materials less than 0.25 mm thick;# E2 |+ n' Z% R! K1 G7 z
– small electrical components such as:( }# N8 R) y: l) X) a& k* S
• integrated circuits, transistors, optocoupler packages;$ D/ k' }1 Z( P6 }( v
• capacitors with a volume not exceeding 1 750 mm3,0 ]& y* ^3 P% m8 \
provided these components are mounted on material of flammability category V-1 or
! t; `6 O r8 g" y& Z4 [better according to UL 94.' ]& H) `& {! X. p
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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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. d/ i0 f& z& H! V8 ?4 N' `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。9 @+ K4 }' l2 p1 i
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