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इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 9567 (2001): Tin or Tin-lead Coated Copper Wire [LITD 6: Wires, Cables, Waveguides and Accessories] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” . _Q._ IS 9567:2001 - :. .- Wan77G5 i &r* faa3mww-R-fwm Indian Standard TIN OR TIN-LEAD COATED COPPER WIRE — SPECIFICATION ( First Revision) ICS 25.220.40; 77.150.30; 29.060.10 (3BIS 2001 BUREAU OF IN DIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC NEW DELHI 110002 Price Group 4 .huze 2001 Wires, Cables, Waveguides and Accessories Sectional Committee, LTD 18 FOREWORD This Indian Standard (First Revision) wasadopted bytheBureau ofIndian Standards, after thedraft finalized bytheWires, Cables,Waveguides andAccessories Sectional Committee hadbeenapproved bythe Electronics andTelecommunication Division Council. This standard wasoriginally published in 1980. Itisnowbeing revised toalignitwiththelatest technological development. While revising this standard, assistance has been derived from ASTM B33-1(1985) and ASTM B189(1985). There isnoIEC standard onthis subject. For thepurpose ofdeciding whether aparticular requirement ofthisstandard iscomplied with, thefinal value, observed orcalculated, expressing theresultofatest,shallberounded offinaccordance withIS2:1960 ‘Rules forrounding offnumerical values(revised)’. Thenumberofsignificant placesretained intherounded offvalue should bethe sameasthatofthe specified value inthis standard. IS 9567:2001 Indian Standard TIN OR TIN-LEAD COATED COPPER WIRE — SPECIFICATION ( First Revision) 1 SCOPE NOTE—Thephysicalconstantsofcoppermaterialaregiven inAnnexA. This standard specifies requirements for tin and 4.2 Resistivity tin-lead coatedcopper wirehaving anominaldiameter (coated) within the range 0.08 mmto2.0mm. The resistivity at 20”C of the plain annealed copper wire before coating shall not exceed 0.017 241 2 REFERENCES ohm.mm2/m. The following standards contain provisions which 4.3 Details of Coating through reference in this text, constitute provision of The copper wire shall be covered with a smooth, this standard. At the time ofpublication, theeditions uniform, continuous and adherent layer of tin or indicated were valid. All standards are subject to tin-lead alloy. revision, and parties to agreements based on this 4.3.1 Tin standard areencouraged toinvestigate thepossibility of applying the most recent editions of the standards Tin shallbeofgrade 99.75 (seeIS 26). indicated below: 4.3.2 Tin-Lead Alloy 1SNo. Title Tin-lead alloy shall be non-antimonial Eutectic 63% 26:1992 Tin ingot ~ourth revision) tin 37% lead nominal alloy. Tin content shall be 482 : 1991 Reels for covered, round electrical maintained at63+5% tin. winding wires (third revision) 4.4 Diameter of Coated Wire 1885(Part 32) :Electrotechnical Vocabulary: Part32 The finished coated wire diameter shall have a 1993 Electric cables @rstrevision) tolerance of +3% - 1% on the nominal specified 9000 (Part 3/ Basic Environmental Testing Proce- diameter. The preferred nominal diameters of the Sec 1to5): dures for electronics and electrical coated wire aregiven inTable 1. 1977 items: Part 3Dry heattest 9000 (Part 18/ Basic environmental testing proce- Table 1Diameters And Resistance of Preferred Sec 1to 3) : dures for electronics and electrical Sizes of Wires 1981 items: Part 18solderability test (Clauses 4.4,6.3.1 and 6.4.1) 3 TERMINOLOGY PreferredDlameter(Cuated) Resistance(Coated) Nominal Maximum 3.1 For the purpose of this standad, the following mm ohm/km (1) (2) definition in addition tothose given inIS 1885 (Part 0.08 3687.5 32) shall apply. 0.1 2360 0.15 Res=23.6kf2 1049 3.2 Tin or Tin-Lead Coated Copper Wire — A 0.2 590 solid conductor of circular section having a uniform 0.25 377.6 coating oftin or tin-lead alloy. 0.3 259.94 NOTE—Forsimplicity,theterm‘wire’isusedinthkstandard 0.4 145.94 toindicatetinortin-leadcoatedcopperwire. 0.5 Res=23.351d2 93.40 0.6 1 63.5 4 MATERIAL AND CONSTRUCTIONS 0.7 46.65 4.1 Material 0.8 Res=22.861d2 35.72 1.0 22.86 The basic conductor of the coated wire shall be 1.2 15.87 produced from highconductivity annealed copper. 1.6 8.93 2.0 .5.71.-5 1 IS 9567:2001 5 PACKING AND MARKING againsubjected toallthetestsspecified in6.1.1. Ifno .2 single failure occurs, the type shall be considered as --- 5.1 Packing approved. The wire shall be supplied on reels or coils, suitably 1 6.1.2 Acceptance Tests .! packed and labelled. The following shallconstitute theacceptance tests: 5.1.1 When wire is supplied on reels, the reels shall a) Measurement ofdiameter (see 6.4.1), conform toIS 482. b) Resistance test(see 6.3.1), 5.2 Marking c) Elongationandbreakingstrengthtest(see6.4.2), d) Solderability test(see6.4.4), The label which shall be securely attached tothe reel e) Continuity ofcoating test (see6.4.5), and orcoil shall contain thefollowing information: f) Adherence ofcoating test (see6.4.6). a) Manufacturer’s name or~ade-mark; b) Nominal diameter ofcoated wire; 6.L2.I Sampling plan c) Typeofwite(thatis,tincoatedortin-leadcoated] A recommendatory sampling plan is given in d) Nominal composition oftin-lead alloy,incase Annex B. oftin-lead alloy coated wire; e) Mass (net andgross); 6.1.3 Routine Test f) Country ofmanufacture; and The measurement of diameter (see 6.4.1) shall g) Any other information agreed to between the constitute routine test. purchaser andthemanufacturer. 6.2 Conditions for Tests 5.2.1The labelmay alsobemarked withtheStandard Mark. 6.2.1 Standard Atmospheric Conditionsfor Testing Unless otherwise specified, all tests shall be carried 5.2.1.1 The use of the Standard Mark isgoverned by out under the standard atmospheric conditions given the provisions of theBureau ofIndian Standards Act, below: 1986andtheRules andRegulations madethereunder. Temperature 15to 30°c Details ofconditions under whichalicensefortheuse Relative humidity 45 to75percent oftheStandard Markmaybe grantedtomanufacturers Airpressure 86to 106kPa or producers may be obtained from the Bureau of Indian Standards. 6.2.2 Preconditioning 6 TESTS All the electrical measurements shall be carried out after storing the wires at the temperature for a time 6.1 Classitkation of Tests sufficient for the whole of the wires to reach that 6.1.1 Type Tests temperature. The following shallconstitute thet y pe tests: 6.2.3 Samples of wire from each reel/coil for various a) Measurement ofdiameter (see6.4.1), testsshallbetaken afterdiscarding alength ofwireof b) Resistance test (see6.3.1), 1.5mfrom eachend. c) Elongation and breakhg strength test (see 6.4.2), 6.3 Electrical Tests d) Bend test (see6.4.3), 6.3.1 Resistance Test e) Solderability test (see6.4.4), ~ The electrical resistance of the coated wire shall be Continuity ofcoating test(see6.4.5), and expressedasthedcresistance inohndkm at20”C. The g) Adherence ofcoating test (see6.4.6). method used shallhave an accuracy of 0.5percent. 6.1.1.1 Number of samples If resistance is measured at a temperature other than For type tests, samples of suitable lengths shall be 20”C,theresistance shallbecorrected tothereference taken from 5 reels/coils each containing one temperature of 20”C by multiplying the measured continuous length of thegiven type of wire. valuebythefactor k, where: These reels/coils shall be selected at random from 1 regular production lots so as to be representative as k= 1+0.00393(t - 20) possible of the type under consideration. Each reel/coil shall be subjected to allthetests specified tbeingthetemperature in‘C atwhich measurement is in6.1.1. made. NOTE— Forcorrection,referencemaybemadetoTable2. In the event of any one of the reels/coils failing to Thecorrectionfactorshavebeenarrivedatonthebasisofthe comply withtherequirements ifanyrespect; afurther formulamentionedabove. setof5reels/coils shall betaken allofwhich shallbe 2 IS 9567:2001 When measured by the above method, the resistance 6.4 Mechanical Tests of the wire at 20°C shall not exceed the values 6.4.1 Measurement ofDiameter ...- specified inTable 1. The measurement of coated wire diameter shall be ‘ Table 2 Temperature Correction Factors made with an accuracy better than 0.001 mm. If a ,“ (Clause 6.3.1, Note) micrometer is used it shall be ensured that the measuring force isinthe rangeof0.75to 1.25N. The Temperature,“C CorrectionFactor Reciprocal ofFactor spindle and the anvil of the micrometer shall have a (1) (2) (3) 5 1.0626 0.9411 diameter of 5to8mm. 5.5 1.0604 0.9430 6 1.0582 0.9450 The diameter shall be measured at 60° angular 6.5 1.0560 0.9469 displacement around thecircumference of the wireat 7 1.0538 0.9489 each of two places 1m apart. The average of the six 7.5 1.0517 0.9509 8 1.0495 0.9528 results shallbetaken asthe coated wire diameter.The 8.5 1.0473 0.9548 measured value shall be within the limits specified in 9 1.0452 0.9568 Table 1. 9.5 1.0430 0.9587 10 1.0409 0.9607 6.4.2 Elongation and Breaking Strength Test 10.5 1.0388 0.9627 11 1.0367 0.9646 The test shall be carried out after the test specimens 11.5 1.0346 0.9666 havebeenconditioned atatemperature of25~2°Cfor 12 1.0325 0.9686 12.5 1.0304 0.9705 at least 10hours. The test shall be started within 5 13 1.0283 0.9725 minutes after removing the specimens from the 13.5 1.0263 0.9745 condhioning atmosphere. 14 1.0241 0.9764 14.5 1.0221 0.9784 The test specimens shall be placed inatensile testing 15 1.0200 0.9804 15.5 1.0180 0.9823 machine insuchawaythatthefreelengthbetween the 16 1.0160 0.9843 jaws is approximately 250 mm (that is distance 16.5 1.0139 0.9862 between reference lines marked on the wire). The 17 1.0119 0.9882 17.5 1.0099 0.9902 speed of the testing machine shall be about 100 18 t.0079 0.9921 mrdmin. Theelongation atbreak shallbedetermined 18.5 1.0059 0.9941 bymeasuring thedistance between tworeference lines 19 1.0039 0.9960 19.5 1.0020 0.9980 at the moment of rupture and then calculating the 20 1.0000 1,0000 percentage elongation in relation to the distance 20.5 0.9980 1.0020 measured before thetest,provided thefracture occurs 21 0.9961 1.0039 21.5 0.9941 1,0059 between the reference marks and not closer than 25 22 0.9922 1.0079 mmtoeithermark. Ifthefracture occursoutside these 22.5 0.9903 1.0098 limits and if the required elongation is not obtained, 23 0.9883 1.0118 the test shall be discarded and another test made. 23.5 0.9864 1.0138 24 0.9845 1.0157 Elongation and breaking strength values shall be not 24.5 0.9826 1.0177 lessthan the values specified inTable 3. 25 0.9807 1.0197 25.5 0.9788 1,0213 26 0.9770 1,0236 Table 3 Elongation and Breaking Strength of 26.5 0.9751 1.0255 Coated Wire 27 0.9732 1.0275 27.5 0.9714 1.0295 NominalDiameterof Elongation,Min BreakingStrength 28 0.9695 1.0314 CoatedWire Percent Min 28.5 0.9677 1.0334 mm N/mm* 29 0.9658 1.0354 (1) (2) (3) 29.5 0.9640 1.0373 30 0.9622 1.0393 Uptoandincluding0.25 10 200 NOTES Above0.25anduptoand 15 200 1 Giventheresistanceofwireatt“C,theresistanceat20”Cis including0.5 foundbymultiplyingtheresistanceatt°Cbythefactorfort°C given inCOI2. Conversely, giventheresistance at2(YCthe Above0.5 20 200 corresponding resistance at t°C is found by multiplying the resistanceat20”CbythefactorgiveninCOI3. 6.4.3 Bend Test 2 The temperature coefficient of resistance of coppervaries slightly from sample to sample according to its exact One end of the test piece shall be held between two conductivity. Figuresgivenabovearebasedontheinternational supports of hardened steel which shall be rounded to standardcoefficientof0.00393/”C at20”C. Theerrorinusing a radius equal to the diameter of the wire under test. thistableforcopperwithintherangeofconductivity99percent The protruding portion of the test piece shall be bent to101percentshallnotexceed0.06percent. through 90° and then brought back to its original 3 f, —._ IS 9567:2001 position. Itshall then bebentinthe sarneplane inthe b) On removal from the dry heat oven, the wire reverse direction and again returned to its original samples shall be allowed to cool to room verticalposition. Thisprocedure willberepeateduntil temperature. They are then subjected to failure occurs. One bend consists of bending the test solderability testing. piece through anangle of90° andthen returning itto itsoriginal vertical position. 6.4.4.1 If solder globule method is used, the coated wire shall satisfy the solderability requirements as The wire shall satisfy thefollowing conditions: given below: Nominal Diameter (Coated) No. ofBends Before Condition of Coated Wire Soldering Time,Max Failure, Min Seconds mm Asreceived 1.5 0.2 to0.3 (both inclusive) 4 After accelerated ageing 2.5 0.4 to0.5( -do -) 6 6.4.4.2 The coated wire shall also satisfy the requirements of dewetting test in accordance with 0.6 to0.7( -do -) 8 IS 9000 (Part 18/Sec 1to 3). 0.8 to 1.2(-do-) 10 6.4.5 Continuity of Coating Test 1.6t02.0 (-do-) 12 The wire shallmeet therequirements ofcontinuity of 6.4.4 Solderability Test coating, whentestedbythehydrochloric acid- sodium polysulphide test described inAnnex C. The coated wire shall satisfy the requirements of solderability test when tested in accordance with 6.4.6 Adherence of Coating Test IS 9000 (Part 18/See 1 to 3), both before and after The wire shallmeet therequirements of adherence of accelerated ageing. Accelerated ageing shall be coating, when tested by the wrapping and immersion carried out asfollows: testdescribed inAnnex D. a) The wire shall be subjected todry heat for 16 hours at 155° C [see IS 9000(Part 3/See 1to 5)], and ANNEX A (Clause 4.1, Note) ., INTE RNATIONAL STANDARDS FOR COPPER A-1 The following values adopted by the NOTE—Theabovevatueofthecoefficientoflinear International Electrotechnical Commission (IEC expansion maybe applied to annealed copper over a temperaturerangefromOto150°C. publication No.28)forstandard annealedcopperhave d, At a temperature of 20° C, the coefficient of beentaken asstandard forannealed highconductivity variation of resistance with temperature of Coppec standard annealed copper, measured between a) At a temperature of 20°C, the volume resis- two potential points rigidly fixed to the wire, tivity of standard copper is 1/58= 0.017241 themetal being allowed toexpand freely, is: ohm. mm2/m. Copper which hasaresistivity at 20”C of 1/58 (0.017 241 ohm. mm2/m) is 0.003 93= — 25;.45””C saidtohave aconductivity of 100percent. e) As aconsequence it follows from (a) and (b) b) Atatemperature of20”C,thedensity ofstand- that at a temperature of 20°C the mass resis- ard annealed copper is8.89g/cm3 . tivity of standard annealed copper is: c) Atatemperattneof20°C,thecoeffkientoflinear expansionofstandardcopperis0.000017/ “C. 1/58x 8.89= 0.15328 ohm. g/m2. 4 I / IS 9567:2001 ANNEX B (Clause 6.1.2.1) RECOMMENDED SAMPLING PLAN B-1 LOT B-3 NUMBER OF TESTS AND CRITERIA FOR ACCEPTANCE In any consignment, all the reels or coils of tin or tin-lead coated copper wire of the same type, B-3.1 From each of the reels or coils selected manufactured from the same materials under according to CO12 of Table 4 suitable lengths of test essentially similar conditions of production shall be samples shall betaken afterdiscarding approximately grouped together toconstitute alot. 1.5 m of the wire from both ends. Each of these test samples shall be subjected to the measurement of B-2 SCALE OF SAMPLING diameter, resistance andsolderability. Thenumber of Forjudging theconformity ofalottotherequirements test samples not fulfilling the requirements of any of of the specification tests shall be done for each lot these tests shall be less than or equal to the separately. For this purpose the number of reels or corresponding permissible number given in COI3 of coils to be selected at random from a lot shall be in Table 4. accordance withCO11and2ofTable 4. B-3.2 For the test for elongation, breaking strength, continuity of coating and adherence of coating the Table 4 Scale of Sampling And Permissible number of samples to be tested and the permissible Number of Defective number of defective shall be in accordance with (Clauses B-2, B-3.1 and B-3.2) CO14and 5ofTable 4. LotSize ForDiameter, ForElongation, NOTES Resistance and BreakingStrength, 1 ThetestsamplesforthepurposeofB-3.2maybechosenfrom Soldembitity ContinuityofCoating thereelsorcoilsalreadyselectedforthepurposeofB-3.1. andAdherenceof Coating ~~ -1 2 Ifrequired,forcontinuityofcoatingandadherenceofcoating, Sample Permissible Sample Permissible separatewires maybe takenfrom the reels or coils selected Size No.of Size No.of accordhrgtoCO14ofTable4. Defective Defective (1) (2) (3) (4) (5) upto300 13 0 8 0 301to500 20 0 13 0 501to1000 32 1 20 0 loolto3000 50 2 25 1 3001 andabove80 3 50 2 ANNEX C (Clause 6.4.5) CONTINUITY OF COATING TEST C-1 SPECIMENS shall not be handled. Care shall be taken to avoid abrasion bythecutends. C-1.l Length of Specimens CAUTION—Consideration should be given to Test specimens shall have a length of about 15 cm. toxicity and flammability when selecting solvent They shall be tagged ormarked tocorrespond withthe cleaners. coil orreel from which they were cut. C-2 SPECIAL SOLUTIONS REQUIRED C-1.2 Treatment ofSpecimens C-2.1 Hydrochloric Acid Solutions gr 1.088 The specimens shall be thoroughly cleaned by Commercial hydrochloric acid (sp gr 1.12) shall be immersion in a suitable organic solvent such as diluted with distilled water to a specific gravity of betizene, ether or trichloroethylene forat least3rein; 1.088 measured at 15”C. A portion of hydrochloric then removed and wiped dry with aclean, soft cloth acid solution having a volume of 180 ml shall be (see Caution). The specimens thus cleaned shall be considered to be exhausted when the number of test kept wrapped in a clean, dry cloth until tested. That specimens prescribed inTable 5oflength asindicated partofthespecimen tobeimmersed inthetestsolution in C-3 havebeen immersed in itfor twocycles. 5 .