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3、A1:2013EN 50123-4:2003+A1:2013 - 2 - 3 - EN 50123-4:2003/A1:2013ForewordThis document (EN 50123-4:2003/A1:2013) has been prepared by CLC/SC 9XC “Electric supply and earthing systems for public transport equipment and ancillary apparatus (Fixed installations)“, of Technical Committee CLC/TC 9X “Elect
4、rical and electronic applications for railways“.The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2014-08-26 latest date by which the national standards conflicting with th
5、is document have to be withdrawn(dow) 2016-08-26Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights.Foreword to amendment A1 (1 &RQWHQWV3DJ
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9、 (Fixed installations)“, of Technical Committee CLC/TC 9X “Electrical and electronic applications for railways“.The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2014-08-26
10、 latest date by which the national standards conflicting with this document have to be withdrawn(dow) 2016-08-26Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any o
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