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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。* z5 p8 q* e% R
2.个人觉得不需要吧(这个不确定)- y0 R4 w' I" |
3.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)
, {7 Q& p6 v9 U! d9 B22.31 Neither clearances nor creepage distances over supplementary insulation and
# k* p$ T' ?; e% N% Xreinforced insulation shall be reduced below the values specified in Clause 29 as a result of9 I( ~# P3 o7 x: {0 x/ y& z
wear.
% J2 ^' R5 T' E$ f8 j X) HIf a part, such as a wire, screw, nut or spring, becomes loose or falls out of position, neither% a9 Y5 q, M# q# f2 J
clearances nor creepage distances between live parts and accessible parts shall be+ x- L* N/ n* P( A. L
reduced below the values specified for supplementary insulation. This requirement does not& a' R& B. U3 n# T) s# K
apply if:* t2 j" ?5 G) m, D' O! t j% j! s
– wires connected to terminals have an additional fixing provided near the terminal, so that
, o, |/ l+ h$ v! v$ Y8 ain the case of stranded conductors, the fixing clamps both the insulation and conductor.0 h$ T# y" g/ q* C8 }
With the appliance in its normal position of use, compliance is checked by inspection, by; g( V0 q+ J6 u. p$ |6 j
manual test and by measurement. |
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