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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。
, {- K% n( t* ~: p6 p! w' ^, h. U% V6 }' K6 S% {/ I9 ~
8 Marking$ y4 Q6 y) Y6 h- e# v
8.1 Accessories shall be marked as follows:" k6 G: \# a+ b( f& `# ^0 k) ]8 D8 u
– rated current in amperes;1 y4 C* W* d, b: B1 Z# D
– rated voltage in volts;
C' J. `! ~- l0 ?3 @& ?9 Q– symbol for nature of supply;
4 v d; a0 u% _– manufacturer's or responsible vendor's name, trade mark or identification mark;
. \3 e, z+ T1 a! k# B– type reference which may be a catalogue number;8 I, G' G' v0 r0 K( \$ W
– first characteristic numeral for the degree of protection against access to hazardous parts
' ~! B, P1 X8 h& Hand against harmful effects due to ingress of solid foreign objects, if declared to be higher0 m, ]* h/ \, X+ H1 t( a- R
than 2, in which case the second characteristic numeral shall also be marked;
+ m- m/ W2 \. K M* L$ B– second characteristic numeral for the degree of protection against harmful effects due to
, l6 \. N, }/ tingress of water, if declared to be higher than 0, in which case the first characteristic
+ N( b" S+ c6 Anumeral shall also be marked.
& X5 N% x0 ~7 w; z+ UIf the system allows plugs of a certain IP rating to be introduced into socket-outlets having7 k4 O8 S; J: n, ~9 ` a
another IP rating, attention should be drawn to the fact that the resulting degree of protection
# a2 R! w" e! J v! k& _; \+ {of the combination plug/socket-outlet is the lower of the two. They shall be stated in the
3 g+ X8 I. A" ?( q1 Emanufacturer's literature related to the socket-outlet. |
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