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根据UL 60065中的条款,注意红色部分:
) r. l* A1 n. u0 v2 \* ]. b, P20.1 DU Electrical components and mechanical parts0 l% J _8 s) a0 D# j
+ d* l# [) Q/ \8 \% _) uElectrical components and mechanical parts with the exception of those in b), shall comply with
4 U! s) V! M8 U e' c" |* _5 s8 f1 j9 cthe requirements of 20.1.1, 20.1.2, 20.1.3 and 20.1.4.3 a) I- e* N: R! ?
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b) The following parts which would contribute negligible fuel to a fire:) b. u4 ^6 p x K
– small mechanical parts, such as mounting parts, gears, cams, belts and bearings, if' o$ D! [8 N* `& z7 e
the mass of the non-metallic material of each part does not exceed 4 g, excluding0 z' `# u3 J7 _ e8 V0 \& H
metal, glass and ceramic;
$ C& l T2 ^3 U! _( T– parts such as projection TV lenses, loudspeaker parts, external accessories, and
: E. y0 n8 k+ F& Q: g: S4 T5 qfibrous materials less than 0.25 mm thick;
. i2 E' F. L4 O5 U– small electrical components such as:
) @# v% [: }% l8 D9 b• integrated circuits, transistors, optocoupler packages;+ o7 q& ?2 h2 I4 c
• capacitors with a volume not exceeding 1 750 mm3,) r# a4 o! T8 D; s! \2 u" L
provided these components are mounted on material of flammability category V-1 or
+ h$ m" R2 ]) V$ Q( rbetter according to UL 94.5 ], ^, B/ T/ ?6 p; C
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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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- N' D4 g3 q/ K6 S5 x$ I* x; U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。) e0 |/ M$ W+ ^
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