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本帖最后由 tsunn 于 2013-2-2 11:59 编辑 # W$ V* R% [2 N; G! n3 i
2 S& \9 ~4 s! y% c* n: ]" y7 H9 DIEC60335-1的3.6.6对small parts的定义应该怎么理解?
" L; d) \) h0 E. V9 t; p" o) [( Msmall part$ ~& V! _, y" @' \
part, where each surface lies completely within a circle of 15 mm diameter, or a part where
7 W1 Q! y3 F7 J/ |; C: |some of the surface lies outside a 15 mm diameter circle but in such a way that it is not
\' T# {8 [4 H% K5 Rpossible to fit a circle of 8 mm diameter on any of the surfaces
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' K- u. S0 a. h n' z; O) Y' INOTE 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
" Y' z0 ^% }' j4 o1 Nexample 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& `0 L! f* ~5 z4 g* P; n8 a$ q: r. P* f
is shown in example B in Figure 5. A part that is not a small part is shown in example C in Figure 5.
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