标题: small part的定义 [打印本页] 作者: tsunn 时间: 2013-2-2 11:46 标题: small part的定义 本帖最后由 tsunn 于 2013-2-2 11:59 编辑 $ t- C/ |6 d4 ~) z
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IEC60335-1的3.6.6对small parts的定义应该怎么理解?# O5 P) b/ Y/ t* D
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part, where each surface lies completely within a circle of 15 mm diameter, or a part where + C$ n; @4 x& Y3 i$ c" _some of the surface lies outside a 15 mm diameter circle but in such a way that it is not . w/ R, n$ F1 H0 Gpossible to fit a circle of 8 mm diameter on any of the surfaces ' P+ z+ g* p2 z) q O% y2 ^5 {; L
NOTE A part that is too small to grip and at the same time to be able to apply the glow-wire tip is shown in & C( w+ G1 U/ [3 g- {8 O" U) q. X: mexample A in Figure 5. A part that is large enough to grip but that is too small to be able to apply the glow-wire tip / s5 x3 X8 }" {% T) o1 L* m Cis shown in example B in Figure 5. A part that is not a small part is shown in example C in Figure 5.& c6 L/ O3 ^) [2 g# K/ c$ h+ k& C 作者: craigyu 时间: 2013-2-2 12:00
对照图5比较好懂作者: H-RH 时间: 2013-2-2 13:30 本帖最后由 H-RH 于 2013-2-2 13:39 编辑 ) H: s6 s8 x6 t# j2 G
* S! z8 m; S0 Q/ X9 V- D- mSmall part: * k2 ^8 S) y1 A& o7 {* h " M* a# d/ b- v W4 `! o4 l[attach]78607[/attach] & ?! t# p1 D" ^ x- A作者: H-RH 时间: 2013-2-2 13:31 本帖最后由 H-RH 于 2013-2-2 13:39 编辑 0 T- c, Z2 K! L* A
* f* w/ a+ S J4 { Not a small part: 1 p4 X8 J9 N5 ]6 x- d( V# ~2 P$ x Z' _5 M5 q& Z6 [" B8 R7 q