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根据UL 60065中的条款,注意红色部分:* f5 \; G/ K; A! j& x, ^
20.1 DU Electrical components and mechanical parts
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Electrical components and mechanical parts with the exception of those in b), shall comply with5 N$ w# O; ?) b' Y- e% @
the requirements of 20.1.1, 20.1.2, 20.1.3 and 20.1.4.( V9 G# A& o& F, ^- U5 T
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b) The following parts which would contribute negligible fuel to a fire:
7 \& b+ [, u1 R& N) J7 W– small mechanical parts, such as mounting parts, gears, cams, belts and bearings, if
2 Q2 g7 f H& K2 }- p+ Y0 N8 z3 Jthe mass of the non-metallic material of each part does not exceed 4 g, excluding$ ?4 p5 P- b) k: I. n# E
metal, glass and ceramic;$ l" ?# h$ x( U* N8 P1 E5 [
– parts such as projection TV lenses, loudspeaker parts, external accessories, and
1 ]6 g& {$ i- z4 R' \* ifibrous materials less than 0.25 mm thick;' \! u" j' k8 p. d$ o' g
– small electrical components such as:1 n" u9 f5 `1 F \, p
• integrated circuits, transistors, optocoupler packages;8 z, i. Y5 i8 h% b$ ^1 d
• capacitors with a volume not exceeding 1 750 mm3,
- B* H6 \, o4 aprovided these components are mounted on material of flammability category V-1 or4 A! A: E; c3 P+ j7 _) ~" D
better according to UL 94.6 v. X! x; h- M8 f
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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。$ z7 N+ ]" e; k) f
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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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