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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。( ^, U. w) M" t1 L& ]; F; ~
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8 Marking6 s; {6 \# q" Q; T3 Q% j" l1 m
8.1 Accessories shall be marked as follows:$ Y! Q0 w* f3 n7 X& M
– rated current in amperes;
& ]3 @" q" S# g" w% v# u2 v– rated voltage in volts;
# I2 i5 m) }$ v$ X5 p" h– symbol for nature of supply;
- f3 L V: {7 V– manufacturer's or responsible vendor's name, trade mark or identification mark;
$ ?! Y; {, @% R8 ^– type reference which may be a catalogue number;; E+ y. X$ r2 B( V
– first characteristic numeral for the degree of protection against access to hazardous parts! r" n! v' }( ?0 u9 u4 Q
and against harmful effects due to ingress of solid foreign objects, if declared to be higher$ h" I3 `6 f* F/ O! W& J( L4 F) G
than 2, in which case the second characteristic numeral shall also be marked;
+ p% \ w- Q( x0 v. B– second characteristic numeral for the degree of protection against harmful effects due to
. \& @# B+ r- j( `( \ingress of water, if declared to be higher than 0, in which case the first characteristic, a1 v& o) ^: ^- I6 Z$ R
numeral shall also be marked., Q4 T+ U n+ p) b6 z
If the system allows plugs of a certain IP rating to be introduced into socket-outlets having
3 h: e' Z( }3 [8 R4 nanother IP rating, attention should be drawn to the fact that the resulting degree of protection# H( Q/ M9 z& @2 L& ^
of the combination plug/socket-outlet is the lower of the two. They shall be stated in the
! ]+ |) @# {" I3 E$ k- w4 rmanufacturer's literature related to the socket-outlet. |
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