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欧标插头参考的标准是IEC60884,此标准对于Marking的要求(如下)没有说明要印接地线、中性线和带电极符号,所以是可以不用印的。
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3 c* Y4 l G, p4 a$ C3 B. D: M8 Marking
6 H5 N8 t6 F. E( [: U8.1 Accessories shall be marked as follows:, K; I+ l& h1 }9 ?0 [
– rated current in amperes;
$ u# v6 ^) H- `7 i– rated voltage in volts;9 Z" w/ j/ `( S; T. G9 ?# i# z _! }
– symbol for nature of supply;1 n9 s9 j3 X9 T6 K5 X0 u8 i* T
– manufacturer's or responsible vendor's name, trade mark or identification mark;
6 C$ u0 h& H0 |: |' S8 K' G– type reference which may be a catalogue number;
- X- @5 J$ e T– first characteristic numeral for the degree of protection against access to hazardous parts
6 r% Y3 d6 l$ H/ Q" `3 u* L/ Oand against harmful effects due to ingress of solid foreign objects, if declared to be higher) s* x/ M, P% F( l" T* A$ j! c
than 2, in which case the second characteristic numeral shall also be marked;
/ B. j( K: \" ~1 p% T– second characteristic numeral for the degree of protection against harmful effects due to
# T6 r6 A! p7 m, V7 V( ?2 u6 ringress of water, if declared to be higher than 0, in which case the first characteristic( r, L- c, c" L9 _* X( l
numeral shall also be marked.+ M- }4 l$ k6 I: @' s7 W4 U' I
If the system allows plugs of a certain IP rating to be introduced into socket-outlets having4 m; U7 Z+ Q) _' D( m* x
another IP rating, attention should be drawn to the fact that the resulting degree of protection
2 {$ T0 Q- ]* S* e7 @3 z& \of the combination plug/socket-outlet is the lower of the two. They shall be stated in the! D( M2 J- r1 y4 j, D6 I: d
manufacturer's literature related to the socket-outlet. |
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