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若果焊接处失效掉落仍满足附加绝缘的要求的话,就不用勾焊了。7 ?; S! L4 w1 `4 z6 _- h+ F
如果不能,需要点胶,勾焊或者扎带固定。: p* ]& p1 O" [/ a
5 R+ q' ~' ?; W4 p: f# F3 P22.31 Clearances and creepage distances over supplementary insulation and5 ~; t! @/ P: n# X4 I. v
reinforced insulation shall not be reduced below the values specified in clause 29 as a
) i7 q( ?# \* [# K. N Aresult of wear. If a part, such as a wire, screw, nut or spring, becomes loose or falls out of5 q9 B7 n* V1 k- R
position, clearances and creepage distances between live parts and accessible parts shall
" Q; B X5 b. C1 h7 rnot be reduced below the values specified for supplementary insulation.+ G5 h/ ~' z6 u; |% i# o9 L2 K
! I# o3 {' Q4 l N
--wires connected by soldering are not considered to be adequately fixed unless they are held in place near the5 D5 @9 J' U( O* w3 D A# w) A' P
terminals independently of the solder; |
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