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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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y! r5 d7 X, a: H7 B$ v9 p6 H8 Marking
1 s' L# I9 ~# [! h" I2 D. w9 _8.1 Accessories shall be marked as follows:
) R% w; _% W8 @( v+ @7 X– rated current in amperes;
5 _4 t' U' {7 P2 m1 Y– rated voltage in volts;; ^/ d; a6 @( w- D; m
– symbol for nature of supply;) i% |+ E/ S( o% ?7 ? Z; ~, T l
– manufacturer's or responsible vendor's name, trade mark or identification mark;& m( j. R. J( o7 F1 J4 }% e
– type reference which may be a catalogue number;
) h/ w# y0 x- w6 n' W0 c– first characteristic numeral for the degree of protection against access to hazardous parts2 s8 L* G; w C
and against harmful effects due to ingress of solid foreign objects, if declared to be higher
8 g+ w$ ~" d; d: Rthan 2, in which case the second characteristic numeral shall also be marked;
0 |$ R0 g9 F3 E– second characteristic numeral for the degree of protection against harmful effects due to. K" x4 e" O6 c' v& z' X
ingress of water, if declared to be higher than 0, in which case the first characteristic
8 X7 D& f) k! ~2 s0 |' R" l' tnumeral shall also be marked.
% A* H* b, V+ ^6 ~4 {8 mIf the system allows plugs of a certain IP rating to be introduced into socket-outlets having9 n9 t& F( ?: _% z0 @
another IP rating, attention should be drawn to the fact that the resulting degree of protection" G4 N/ M1 \. m* g( r" |, Q
of the combination plug/socket-outlet is the lower of the two. They shall be stated in the% X4 @5 R( E+ |4 q0 i' C( x8 c. J
manufacturer's literature related to the socket-outlet. |
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