|
本帖最后由 tsunn 于 2013-2-2 11:59 编辑
& X" ?+ S6 Y5 e" m4 o) \- M/ d" f+ u# n) z8 [
IEC60335-1的3.6.6对small parts的定义应该怎么理解?
4 x; y8 \6 w' R2 T/ G% T7 U3 k' K. Vsmall part# X# L2 w/ ~8 I! }3 P) c% S
part, where each surface lies completely within a circle of 15 mm diameter, or a part where7 Q: |" ]5 X$ X( Q! C. D
some of the surface lies outside a 15 mm diameter circle but in such a way that it is not
& q/ i% i; M+ |4 [possible to fit a circle of 8 mm diameter on any of the surfaces' N0 n! [+ j9 S* J6 I' I5 _
( N( j# I7 L, O7 e1 U9 A# Y& sNOTE 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* }( G3 v2 k7 S5 t, Q6 B4 d0 A
example 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
2 U' Z6 e* y: V/ iis shown in example B in Figure 5. A part that is not a small part is shown in example C in Figure 5.# N4 O* m, T o* P$ x
|
|