1、Rotating etectrical machines Part 12 : Starting performance of single-speed three-phase cage induction motors for voitap up to and including 660 V, 50 Hz Machines blectriques tournantes Umlaufende elektrische Maschinen Douzime partie: TeiL 22: Anlaufverhatten von Caract IEC/TC 2, not appended - with
2、 CENELEC common modifications This Harmonizstion Document was approved by CENELEC on 1985-03-07. The English and French versions of the HO are provided by the text of the IEi publication snd the German version is the official translation of the IEC text, CiII textc. prepared by CENELEC exist in thre
3、e official versions (English, French, end German). o According to the CENELEC intemal. Regulations the CENELEC member hotiona Cornmittees are tiounu : to announce the existence oi this Harmonization Document at national levei by or before 1985-07-01 to pubiish their new harmonized national standard
4、by or before 1986-01-02 ts uithdraw all conflicting national Standards by ar before 1967-01-01 - H.srmonires! nafior;aL =tandards are listed an the UD information sheet, c which is avzilzble from the CENELEC hatinsl Committees from the CENELEC General Secret5 r iat . Th e CEMEL E 8: Na t i o nz L Co
5、 filz i t f e e 5 a re t he na t i o na L e l e t t y. o t e t hn i ca I L o mtn i t t E e E- iLc:d:emSurg, Netherlands, Ncrwsy Partugsl, Spain, Sweden+ Switzerland, United Ringdon. l oC Austric, PeLgim, C:enm.jrk, Finlsnd, Frnco, Germany, Greece, Irelsnd, Itaty, I m W_IEI ac10373a HD 53.12 CENELEC
6、common modifications I NT RODU CT I ON CENELEC Technical ConmftteenTdcided endorsement of IEC Publication 34-12 (1980) but with limitation of the scope to motors of design N at frequency of 50 Hz. - Therefore the following comrrion modifications apply. CENELEC COb?MON MODIFICATIONS Ti tl e To add II
7、, 50tiz“ at the end. (for german version only) add the following terms : “ausgencrrimen pol umschal tbare Maschinentt between “nit K8fi glufer“ and “fr Spannungen. , . I. Clause 2 - Ohiect First paragraph : To replace “four designs by “two designs“ To add I., 50 Hz“ after “660 V“. (for gerrran versi
8、on only) add the foi;owing terms : “ausgenommen pol umschal tbare Maschinen“ between “mit Ktiglufer“ and “fr Spannungen. . . I. Notses 1 and 2 Q replacs four designs“ by “two designs“. Sub-clause 3.1 - Design N To replace “at frequencies of 50 Hz or 60 Hz“ by “at frequency of 50 Hz“. Sub-clauses 3.3 and 3.4 To be deleted Clauses 8. 9, 10 and 11 To be deleted Table III To replace, in the title and in the formula, letter “I“ by letter IJ“. Table IV To be deleted.
