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1.常见的电水壶蒸汽开关都是全极断开的，要接L/N.如果你的电水壶设计特殊可以发电路图讨论。
! P# ]! f# H+ w( ?) g% n! ?2.个人觉得不需要吧（这个不确定）
) [6 l3 c- N0 ]) Y" X& F3 |. m3.标准要求必须可靠固定（要求如下），一般接受焊接或端子有倒扣（印象里没有拉力要求）5 ]: |6 `9 r2 D" j( d6 U
22.31 Neither clearances nor creepage distances over supplementary insulation and6 k: F4 z |9 Q$ l( |3 s3 g
reinforced insulation shall be reduced below the values specified in Clause 29 as a result of
1 [4 h" S6 p4 lwear.
5 {6 w8 W+ l. G% QIf a part, such as a wire, screw, nut or spring, becomes loose or falls out of position, neither- b8 I4 Y6 @/ Q& C1 y$ q
clearances nor creepage distances between live parts and accessible parts shall be
# E1 j5 S7 P2 k8 preduced below the values specified for supplementary insulation. This requirement does not' O% v: `0 L- B" ~6 p/ ^+ W! o
apply if:; o, t2 ^, r$ ~6 K8 J1 {
– wires connected to terminals have an additional fixing provided near the terminal, so that4 X h5 z) x! N* M+ I
in the case of stranded conductors, the fixing clamps both the insulation and conductor.
1 ]( Z. G$ X! u9 i5 _0 ]% ~7 L$ LWith the appliance in its normal position of use, compliance is checked by inspection, by5 G$ m# u$ F8 {: s" B. n) W
manual test and by measurement. |
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发表于 2010-10-16 22:34
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