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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。' D7 g7 ~3 P3 n+ \* v" N6 \
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8 Marking
" D# z: [. q. e# D0 T+ P/ T. c8.1 Accessories shall be marked as follows:. u2 V. t u& H, A; c4 _$ M
– rated current in amperes;. R# y- p( a) n( X0 ?# u
– rated voltage in volts;0 d% Q0 N7 q7 K7 {. D+ G
– symbol for nature of supply;
$ t$ @6 I3 k6 w– manufacturer's or responsible vendor's name, trade mark or identification mark;
7 {0 w+ k+ h7 G, m8 p0 |– type reference which may be a catalogue number;4 U" e4 o! C- F! H( q
– first characteristic numeral for the degree of protection against access to hazardous parts% Y! W; } `3 ]; O1 J( H' h
and against harmful effects due to ingress of solid foreign objects, if declared to be higher
& k1 F+ t" z( m/ }1 Fthan 2, in which case the second characteristic numeral shall also be marked;
0 R' y6 d% r$ Z& t$ W* I– second characteristic numeral for the degree of protection against harmful effects due to
2 t9 B5 |4 g+ o; j9 z3 @ingress of water, if declared to be higher than 0, in which case the first characteristic
2 s* V, [4 s. p$ l- t1 Snumeral shall also be marked.
: l6 m! o5 a6 I) } aIf the system allows plugs of a certain IP rating to be introduced into socket-outlets having
% _4 X4 v/ j# }. `another IP rating, attention should be drawn to the fact that the resulting degree of protection, o" m% [& ^. x) H& D( I4 ~' U
of the combination plug/socket-outlet is the lower of the two. They shall be stated in the- I. `; _1 a u9 | P
manufacturer's literature related to the socket-outlet. |
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