1、m 39045e3 0004730 7 m DATE OF ISSUE OF TIIE COWR SHEET : 1977-05-15 EUROPEAN COWMITTEE FOR ELECTROTECHNICAL STANDARDIZATION _I- CENELEC HARMONIZATION DOCUMENT HD .351 .I IEC 457-1 (1974 - 1st edition) Rigid precision coaxial lines and their asscciated precision connectors - Part 1 General requiremen
2、ts and measuring methods This Harmonization Document was adopted by CENELEC on 1976-06-30. The National Electrotechnical Committees, members of CENELEC, in k 33 CH D DK F I: IRL N NIl P S SF UK : Austria : Belgium : Switzerland : Germany : Denmark : France : Italy : Ireland : Norway : Netherlands :
3、Portugal : Sweden : Finland : United Kingdim Reference of the Televant National Harmonized Standards overleaf are obliged, in accordance with the CENELEC Internal Regulations, to impleineiit this Harmonization Document in their respective country by - Issuing harmonized national standard(s) and/or -
4、 Vithdrawing conflicting national standard( s) Latest date of implementation : 1977rOl-01 h B CK D ID IC F x IRL I? NI, 0 *s SF UK . ?OS NOS SEV 30411-1 0197. (sP) NOS NOS NOS NOS NOS NOS NOS NOS NOS NOS NOS NOS SP Standard in preparntion NR Standard. under revision No national standard corresponding to the Harmonizntion Do cume 11 t
