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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
* L# K) a' H, m! H8.1 Accessories shall be marked as follows:8 A" a2 @' m' S: ^# F% J9 {! Y
– rated current in amperes;2 x4 s4 C1 F/ H C
– rated voltage in volts;
1 u5 n; b4 B6 P9 m! `– symbol for nature of supply;
$ ^2 ~2 o) g! A5 ~* I– manufacturer's or responsible vendor's name, trade mark or identification mark;
/ O; P1 @0 @' B/ t+ l– type reference which may be a catalogue number;, D5 t8 t7 y2 p7 g7 U$ _, x
– first characteristic numeral for the degree of protection against access to hazardous parts
3 P \; p( E2 Y& M2 @1 Zand against harmful effects due to ingress of solid foreign objects, if declared to be higher) C6 a% |7 T6 a4 U
than 2, in which case the second characteristic numeral shall also be marked;
0 l( N3 p6 r* M3 H2 f) W* X– second characteristic numeral for the degree of protection against harmful effects due to
3 C& f* M2 A# Tingress of water, if declared to be higher than 0, in which case the first characteristic( C, r- S# [: g8 k& U- C" @- @
numeral shall also be marked.# ~+ j, H$ a3 h
If the system allows plugs of a certain IP rating to be introduced into socket-outlets having
% E( g+ O6 [/ z9 a/ {( }; Qanother IP rating, attention should be drawn to the fact that the resulting degree of protection
6 j R& [& R+ }( cof the combination plug/socket-outlet is the lower of the two. They shall be stated in the) k: {" {) J; k0 q# O
manufacturer's literature related to the socket-outlet. |
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