HD 120-1974 Characteristic Impedances and Dimensions of Radio Frequency Coaxial Cables《特性阻抗和射频同轴电缆的尺寸》.pdf
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HD 120-1974 Characteristic Impedances and Dimensions of Radio Frequency Coaxial Cables《特性阻抗和射频同轴电缆的尺寸》.pdf
1、 CENELEC IEC 78 (1967 - 3rd edition) Characteristic impedances and dimensions of radio- frequency coaxial cables c DATE OF ISSUE OF THE COVER SIIEET : 1977-0.!%1.5 : Belgium : .Switzerland : Germany : Denmark : France : Italy : Ireland : Norway : Ne therlands : Portugal : Sweden : Finland : United K
2、ingdom EUROPEAN COMMITTEE FOR ELECTR9TEGHNICAL STANDARDIZATION Reference of the re levant National Harmonized Standards overleaf CEhBLEC HARMONIZATION DOCUbENT HD 120 I- This Rarmonization Document was adopted by CENELEC on 1974-05-07* The National Electrotechnicai. Committees, members of CENELEC, i
3、n A B CK D DK F 3: IRL N NL P -. s SF UK are obliged, in accordance with the CE1EI;EC 1nt;erna.l Regulations, to iniplement this Harmonization Document in their respective country by * - Issuing harmonized national standurd(s) and/or - klithdrawing conflicting national standard(s) Latest date of imp
4、lernentalion : 1976-01-01 U Clac. No 93e5 A -: B * GH : D DK : F 5: . IRL : N . NL : P t S . SF : UK : NOS NOS ASE 1018.1970 DIN 47 260 (1971) DS/IEC 78 (191) SP NOS NOS NOS NEN 10 078 (1967) NOS SEN 43 03 O1 (1961) - NOS BS 2316 Part 3 (1969) , ROS SP Standard ir. preparation NR Standax4 uaidci. revicion No national standard correopnding to the Harmonization Do c unw n t
