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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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8 Marking! Y1 @8 H: r, c/ e; g) M. w1 J8 h
8.1 Accessories shall be marked as follows: b9 n" y! S( M
– rated current in amperes;
/ v I) K( _6 t– rated voltage in volts;) Z/ U% N8 U; Q5 f4 B
– symbol for nature of supply;
# X, M4 p9 O5 r( K( E– manufacturer's or responsible vendor's name, trade mark or identification mark;3 @/ h" k! f: y# p& @( u
– type reference which may be a catalogue number;
8 B5 W& c- P/ ]4 N0 x# Z– first characteristic numeral for the degree of protection against access to hazardous parts6 J: f W% O; k( r
and against harmful effects due to ingress of solid foreign objects, if declared to be higher0 Y, E9 t! u' I: P0 P
than 2, in which case the second characteristic numeral shall also be marked;) x: o5 U0 e! \7 H
– second characteristic numeral for the degree of protection against harmful effects due to% `/ |, u$ `9 ]$ M/ e1 ~
ingress of water, if declared to be higher than 0, in which case the first characteristic# Q1 H" U& C1 |/ Z% k1 R
numeral shall also be marked.
3 m) V# `/ K- J# b; FIf the system allows plugs of a certain IP rating to be introduced into socket-outlets having
7 }% V9 V4 \# Y' Q! z. }another IP rating, attention should be drawn to the fact that the resulting degree of protection; A$ V& _7 u* b5 a4 i- Z" P
of the combination plug/socket-outlet is the lower of the two. They shall be stated in the+ l2 C$ q+ ~! C4 n# D! G* J
manufacturer's literature related to the socket-outlet. |
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