1、 I 3404583 000bL4b O 1 HD 4ru.5 si. bbbx bS2 2) 519 68 19 - TeiiLSx 2116 2210097 issue .1 1988-03-11 Methods of test for winding wires Part 5: Electricai properties Methodes dessai des fils de bobinage Cinquime partie: PropritstQs Blectriques Pr fme t hoden fr Wi ckedrht e Teil 5: Elektrische Eigens
2、chaften RD: IEC 852-5 (19851 ed i; IEC/TC 55, not appended - Title Page Related to Direct ive: - CENELEC common modifications- date of ratification ; 1987-12-02 date of announcement : .1988-06-0.1 date of latest publication : 1983-12-01 date of withdrawai : 1988-12-0.1 -_C-_-_l_l -7- LIST OF NATZONA
3、L STANDARDS IS GVEN OVERLEAF . t Official Phot oc- W 3404583 0006347 2 W I UCC: bL1.315.33:6C3.1:2.317 KEY WORDS: Electrical wire,; winding wire; insulated wire; electrical property PETHODS OF TEST FOR WINDING kllRES PART 5: ELECTRICAL PROPERTIES . Mlthodes dessai des fils de Priifmethoden fur bob i
4、 nage Cinquime partie: Propriets Teil 5: Elektrische .4 L ect r iq ues 14 i ck e Ldrht e E i genscha f t en emw OF 7s.c MD - The Harmonization Document consista of: - IEC 851-5 (19851 ed 1; IEC/TC 55, not appended - with CENELEC common modifications Thi5 Harmonization Document was approved by CENELE
5、C on 1987-42-02. The Eng1 ish and French versions of this Harmonization Document are provided by the text of th IEC publication and the German version is the official translation of the iEC text. The German tranlation is not yet available, All texts prepared by CENEiEC exist in three official versio
6、ns (English, French and German). According to the CENELEC Internal Regulations the CENELEC member National Committees are bound: to announce the existence of this Harmonization Document at national level by or before 1988-06-01 to publish their new harmonized national standard by or before 1988-12-0
7、1 to withdraw ell conflicting national standards by or before 1988-12-01. Harmonized national standards are listed on the HO information sheet, which is available from the CENELEC National Committees or from the CENELEC Central Secretariat. The CENELEC Nationl Committees are the national electrotech
8、nical conmittees of Auetris, Belgium, Denmsrk, Finland, France, Germany, Greece, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United C i ngdom. Copyright reserved to all CENELEC members I hl I o W -.I W Z W o 2 O m o U O ._ U .- z E E E o W J w Z C O O o o oi
9、 c O O Y- a, 5 iii) ril 5 CI C 3 O o o m O C Qi C m c v) a, o. m 4 C O U .- Y ._ U n .i) Y % o, n Ln a) Q 4 Ln I 4 Ln a) o Li W U w -4 3 r, u vi i H 5 E-r H U w d w U E n VI o3 m r Y VI I m o3 ? cn w cn 3 4CJ dw UH rl Ln c al a w o Z U . -2- b - 3404583 0006349 6 m HD 490.5 S1 Test 14 . Annex 1 A te
10、st circuit for measuring-&he continuity of covering according to picture shown below is used for this test. “ Number of faults 8 . With a maximum tractive effort according to the tablegiven hereafter, the wire sample is directly drawn through two strips of felt with a length of 20 mm which are impre
11、gnated with an aqueous electrolyte solution. 30 9 of anhydrous sodium sulfate are added to one litre of water. Table Nominal diameter I over up to Tractive effort I N 0,l 0,05 012 or7 2i5 acc. to agreement The speed of the wire sample amounts to approx. 0,25 m/s. Defective spots in the covering with
12、 a resistance of up to 10.000 ohms are indicated, over 11.000 ohms are not. In this test circuit, the faulty spots are counted by a counter which registers with certainty 10 current impulses per second, lasting 0,04 s respectively. Permanent faults are shown by the signal lamp. It has to be guarante
13、ed that the counter does not register more than 10 current impulses per second, lasting 0,04 s respectively. - 1 2 3 4 5 6 7 9 10 I1 a - Wire sample Felt strip, wool felt Bath with NasS04-solution Direct current source Relay Res is tor Re s i s tor Counter Signal lamp Delivery reel with enamelled wi
14、re Winding up-device together 10.000 ohms Picture Test circuit for determining the number of faults - Test 19 Dielectrical loss factor HD 490.5 S1 Annex 2 The wire sample cleaned with a benzine-soaked soft cloth is smeared with an aqueous graphite dispersion on 8 length of 100 mm and is dried for tw
15、o hours at approx. 90 C. 100 mm of thin wire samples are laid arouni! a thicker blank wire and, subsequently, are smeared with an aqueous graphite dispersion. The dielectrical loss factor is metered between the conductor and the graphite covering. For this purpose, a suitable measuring outfit which supplies a sinusoidal measuring voltage up to 50 V with a frequency of 1 Kcs is used. Two tests are conducted. . .- .-e -
