JIS-C-2521-1999-R2005-ENG.pdf
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1、JIS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Copper-nickel alloy wires, rolled wires, ribbons and sheets for electrical resistance ICs 29.060.10 Descriptors : resistors, electric wires, sheet materials, non-ferrous alloys, copper alloys, nickel alloys,
2、 filaments, strips, electrical resistance materials Reference number : JIS C 2521 : 1999 (E) 9s STD*JIS C 2521-ENGL 1973 E 4933b08 OSb9260 524 W C 2521 : 1999 Foreword T h i s translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade
3、and Industry through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JIS C 2521 : 1986 is replaced with JIS C 2521 : 1999. Date of Establishment: 1953-08-21 Date of Revision: 1999-12-20 Date of Public Notice in Official
4、 Gazette: 1999-12-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Non-Ferrous Metals JIS C 2521 : 1999, First English edition published in 2001-01 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the ev
5、ent of any doubts arising as to the contents, the original T I S is to be the final authority. O JSA2001 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microf
6、ilm, without permission in writing from the publisher. Printed in Japan -,-,- STD*JIS C 252L-ENGL 1999 4733b08 05b92bl 4b0 W JAPANESE INDUSTRIAL STANDARD JIS C 2521 : 1999 Copper-nickel alloy wires, rolled wires, ribbons and sheets for electrical resistance Introduction This Japanese Industrial Stan
7、dard has been prepared based on the first edition of IEC 60182-4 Basic dimensions of winding wires-Part 4 : Diameters of conductors for round resistance wires issued in 1971 without modifying its techni- cal contents. The items not specified in the relevant IEC Standard are added as Japanese Industr
8、ial Standard (in the clauses 3 to 5 and 7 to 12). The portions un- derlined with dots in this Standard (Attached Table 2) are not specified in the cor- responding International Standard. In addition, IEC 60182-4 was withdrawn in 1990 and replaced by IEC 60317-0-1 Specifications for particular types
9、of winding wires-Part O : General requirements- Section I : Enamelled round copper wire. This Standard has no corresponding rela- tions with the said International Standard, since its scope is different from the scope of this Standard. 1 Scope This Standard specifies copper-nickel alloy wires, rolle
10、d wires, ribbons and sheets for electrical resistance (hereafter referred to as “wires, rolled wires, rib- bons and sheets“) of alloys mainly composed of copper and nickel, and have small temperature coefficient of electrical resistance (hereafter referred to as “tempera- ture coefficient“). Remarks
11、 : The corresponding International Standard is as follows. IEC 60182-4 : 1971 Basic dimensions of winding wires-Part 4 : Di- ameters of conductors for round resistance wires 2 Normative references The standards given in Attached Table 1 contain pro- visions which, through reference in this Standard,
12、 constitute provisions of this Standard. The most recent editions of the standards shall be applied. 3 Definitions The definitions of the major terms in this Standard shall be as fol- lows: a) b) C) d) rolled wire The resistance materials made in such a process that raw rod ma- terials are rolled or
13、 drawn after rolling, and then wound. ribbon The resistance materials made in such a process that raw sheet mate- rials are cut in its longitudinal direction and then wound, volume resistivity Electrical resistance per unit cross section and unit length (Rm). linear temperature coefficient and quadr
14、ic temperature coefficient If the relative variation of electrical resistance of an electrical conductor is ex- pressed in the form of a quadric function of temperature, the linear tempera- ture coefficient is denoted coefficient on the linear term of the function and the quadric temperature coeffic
15、ient is denoted coefficient on the quadric term of the function. -,-,- STD-JIS C ZCZL-ENGL 1779 4933608 0567262 3T7 Class Copper-nickel alloy wire for electrical resistance 2 C 2521 : 1999 Grade Symbol Property and usage (informative) Grade AA CNWAA These have resistance to corrosion and oxidation.
16、The grade AA can Grade A CNWA be used at 55 O C or lower, and Generally, the temperature coefficients are denoted as follows: Linear temperature coefficient: a Quadric temperature coefficient: Linear temperature coefficient at t O C : at Grade mean temperature coefficient The relative variation in e
17、lectrical resistance of an electrical conductor due to temperature between two given temperatures (ta O C , t b O C ) divided by the temperature difference At. Generally, the mean temperature coefficient is denoted as a, and that be- tween temperature t,“C and t b Oc (ta tb) is denoted as mb. Grade
18、A and B can be used at 200 “C cm , or lower. effective cross section The sectional area, in a rolled wire, obtained from the thickness and width multiplied by a constant factor. Copper-nickel alloy ribbon for electrical resistance Copper-nickel alloy sheet for electrical resistance conductor resista
19、nce The electrical resistance per unit length in longitudi- nal direction of a conductor having a uniform cross section (QI. Unit length is usually 1 m or 1 km and the conductor resistance is respec- tively given in Wm or Wkm. - CNR - CNP 4 Class, grade and symbol The classes, grades and symbols sha
20、ll be as shown in Table 1. Table 1 Class, grade and symbol - I ICNRW 1 Copper-nickel alloy rolled wire for electrical resistance I 5 Quality 5.1 Appearance The wires, rolled wires, ribbons and sheets shall have smooth surface and be free from scratches, twists, cracks, adhesive substances and other
21、defects detrimental to use. I 5.2 ribbons and sheets shall comply with Table 2. Chemical composition The chemical ingredients of the wires, rolled wires, -,-,- STD-JIS C 2521-ENGL 1999 = 4733608 0569263 233 Ni (l) 42.0 to 48.0 3 C 2521 : 1999 Mn Cu + Ni+ Mn 0.5 to 2.5 99.0 min. Table 2 Chemical comp
22、osition % (mlm) Chemical composition I Class Grade Temperature coefficient Temperature Linear Quadric Mean at measuring temperature temperature temperature point coefficient coefficient coefficient “C a 2 3 X 10dK x 104/K a X 10bK Note (1) Nickel may contain a small amount of cobalt. Copper-nickel a
23、lloy wire for electrical resistance 5.3 Volume resistivity The wires, rolled wires, ribbons and sheets shall be tested according to 8.2.2 and comply with the specifications of Table 3. However, this specification shall not apply to the wires of diameter less than 0.355 mm, and the rolled wires, ribb
24、ons and sheets of thickness less than 0.5 mm. Grade AA 23 f 2 -1Ot0+10 -1.5to+O 38 f2 53 I 2 Table 3 Volume resistivity Copper-nickel alloy rolled wire for electrical resistance Copper-nickel alloy ribbon for electrical resistance Copper-nickel alloy sheet for electrical resistance Volume resistivit
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