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根据UL 60065中的条款,注意红色部分:: N6 r1 Z& h% M1 w4 X) w5 C
20.1 DU Electrical components and mechanical parts D P6 g% {! E( j! W! A1 h
9 R; ]0 w" \+ O9 C+ ~; } j+ NElectrical components and mechanical parts with the exception of those in b), shall comply with
: ~& J$ R! u6 |# C# X$ Q* Jthe 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:
4 H/ X0 v% h( B* }: d5 t– small mechanical parts, such as mounting parts, gears, cams, belts and bearings, if, c: ?5 E9 o) ] M2 X
the mass of the non-metallic material of each part does not exceed 4 g, excluding( ]$ _2 L. R" C/ z
metal, glass and ceramic;/ b- I" `- l8 ]3 ]" S% X8 [
– parts such as projection TV lenses, loudspeaker parts, external accessories, and
# Z' ? k* Y! Mfibrous materials less than 0.25 mm thick;4 v2 x3 M6 L! r6 s4 G7 G) _5 |
– small electrical components such as:: e% ?& \0 ?( f1 |; c& ]: {' Q
• integrated circuits, transistors, optocoupler packages;2 @2 G+ E+ \; p- B
• capacitors with a volume not exceeding 1 750 mm3,8 F( K+ A% D, Q: ]% B
provided these components are mounted on material of flammability category V-1 or
; }6 w5 Z6 m ^ w' r: L" I% x( Rbetter according to UL 94.
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7 v! |5 [+ t" m5 ?1 v6 ]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。, B( u; V2 ^; `: g
4 k9 s; \2 H9 U2 w- ~& o1 c1 z* [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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