|
本帖最后由 tsunn 于 2013-2-2 11:59 编辑
7 H9 F) A9 Q8 ~0 v, K( Y" S7 k9 S! U. G
IEC60335-1的3.6.6对small parts的定义应该怎么理解?1 ?0 s/ |0 d& v$ x; b! d ^
small part9 v2 X9 i* l ~, `
part, where each surface lies completely within a circle of 15 mm diameter, or a part where
" u! n( A4 x# s0 `- \4 bsome of the surface lies outside a 15 mm diameter circle but in such a way that it is not9 V4 I' ~' H9 Q0 N8 B
possible to fit a circle of 8 mm diameter on any of the surfaces/ D# ]8 [/ }, J5 f9 P+ P
# s$ ^ b. ?) }6 ?: N Y8 ]9 ?% vNOTE 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
; m4 w7 y* \; K! k7 xexample 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
4 \7 D" N; U/ h. y$ _is shown in example B in Figure 5. A part that is not a small part is shown in example C in Figure 5./ f; v1 ?- f, o6 I5 j$ b
|
|