IS : 613 -1984

Indian StandardSPECIFICATION FOR

COPPER AND BARS FORELECTRICAL PURPOSES

(Second Revision)

Second Reprint AUGUST 1996

UDC 669.3+422+621.3

ISPAT INDUSTRIES LTDGeetapuram, Co'vi, TeiuM

DUt. ftaiaad.-402107.

© Copyright 1985

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr6 April 1985

ISP AT INDUSTRIES LTDG t e m Doivi Triuki - P«nGwtepurem,

J^Ut. Rilgad. - 402107.

ian StandardSPECIFICATION FOR

COPPER RODS AND BARS FORELECTRICAL PURPOSES

(Second Revision)

Copper and Copper Alloys Sectional Committee, SMDC 11

Chairman Representing

D B L. R. VAIDYANATH Indian Copper Information Centre, CalcuttaMembers ,

SHBI D. DE. SABKAB (Alternate toDr L. R. Vaidyanath )

SHBI DEV KUMAR AGOABWAL Bralco Metal Industries Pvt Ltd, BombaySHBI RAJ KUMAR AGOABWAL ( Alternate )

SHBI K. L. BABUI National Test House, CalcuttaSHBI H. P. DTJBEY (Alternate )

SHBI J. NAOESH BHATT Indian Telephone Industries Ltd, BangaloreSHBI A. R. SUKUMARAN (Alternate )

SHRI BAOHITAB SINGH Ministry of Defence (DGI)/DPI ( N )SHBI M. R. AOHABYA ( Alternate )

SHBI BALKBISHNA BINANI Rasbtriya Metal Industries Ltd, BombayD B V. S. PATKAB ( Alternate )

SHBI P. R. DHAB National Pipes and Tube Co Ltd, CalcuttaSHBI A. K. MITBA ( Alternate )

D B S. K. BISWAS Hindustan Copper Ltd, CalcuttaPBOT A. D. BOBBA Alcobex Metals ( P ) Ltd, Jodhpur

SHBI S. D. NABKHAPB ( Alternate )SHBI L. N. CHAKBABOBTY Bengal Ingot Co Ltd, Calcutta

JSHBI P. GHOSH Indian Cable Co, JamshedpurL SHBI TBILOK SINGH ( Alternate )SHBI H. N. GUSTA Ministry of Finance ( India Government Mint ),

CalcuttaSHBI A. V. HABNE Bharat Heavy Electricals Ltd, Secunderabad

D B M. N. CHANDBASEKHABIAH ( Alternate I )SHBI K. N. WADHWA {Alternate II)

SHRI D. P. JAIN Saru Smelting Pvt Ltd, MeerutSHBI D. N. CHAKBAVORTY ( Alternate )

( Continued on page 2 )

© Copyright 1985

BUREAU OF INDIAN STANDARDSThis publication is protected under the Indian Copyright Act ( XIV of 1957 ) andreproduction in whole or in part by any means except with written permission of thepublisher shall be deemed to be an infringement of copyright under the said Act.

IS : 613 - 1984

( Continued from page 1 )

Members Representing

SHBI R. P. KESAN KMA Ltd, BombaySHRI A. H. SABHACHANDANI (Alternate ).

SHRI S. K. KHANDEKAR Vanaz Engineers ( P ) Ltd, PuneSHRI S. K. MOHANTY Ordnance Factories Board, CalcuttaSHBI G. R. K. MURTHY Ministry of Defence ( R & D )

SHBI I. N. BHATIA ( Alternate )SHBI P. S. RAMASWAMT Bhandary Metallurgical Corporation Pvt Ltd,

BombaySHBI T. RAMASUBBAMANIAN Directorate General of Technical Development,

New Delhi * vSHRI T. R. MOHAN RAO ( Alternate ) m ^

SHRI M. K. RAO Indian Non-Ferrous Metals Manufacturers ™Association, Bombay.

SHRI S. K. ROY Ministry of Defence ( DGI )SHRI P. K. L. P. NIMANKAB ( Alternate )

SHRI R. N. SAHA Directorate General of Supplies & Disposals,New Delhi

SHRI DIPANKAB KIRTI ( Alternate )SHBI D. K. SEHOAL Leader Engineering Works, Jalandhar

SHBI V. K. CHOTJDHURY ( Alternate )SENIOR CHEMIST & METALLURGIST, Ministry of Railways

CENTRAL RAILWAY, BOMBAYDEPUTY DIBBCTOB ( MET )-II,

RDSO, LTJOKNOW ( Alternate )SHRI A. SHANTHARAM HMT Ltd, BangaloreSHBI S. C. SIVABAMAKHISHAN National Metallurgical Laboratory ( CSIR ),

JamshedpurSHBI A. R. C. SONDYS The Institution of Engineers, CalcuttaSHBI J. SBIDHARAN Ministry of Steel & Mines, New DelhiSHBI P. SRIRAM Rapsri Engineering Industries Pvt Ltd, BangaloreSHBI N. S. SURANA Multimetals Ltd, Kota

SHRI N. C. RAMAKUISHANA ( Alternate )SHRI SWABOOP KRISHNA Indian Standard Metal Co Ltd, BombaySHRI S. S. VAIDYANATHAN J. B. Metal Industries Pvt Ltd, BombaySHBI K. RAGHAVENDRAN, Director General, ISI (Ex-officio Member)

Director ( Struc & Met )

Secretary

SHRI JAGMOHAN SIKOHDeputy Director (.Met ), ISI

IS t 613 • 1984

Indian Standard

SPECIFICATION FORCOPPER RODS AND BARS FOR

ELECTRICAL PURPOSES

(Second Revision)

0. FOREWORD

0.1 This Indian Standard ( Second Revision ) was adopted by the IndianStandards Institution on 12 March 1984, after the draft finalized by theCopper and Copper Alloys Sectional Committee had been approved by theStructural and Metals Division Council.

0.2 This standard was first published in 1954 and subsequently revised in1964. In view of the publication of revised version of IS : 191 ( Parts 1 to10 )-1980*, and IS : 3288 ( Part 1 )-1981f it was felt necessary to revisethis standard to accommodate the material below 10 mm starts from6 mm.

0.3 In this revision the following modifications have been made:i) MKS units have been changed to SI units for all quantities and

dimensions,ii) Clauses for terminology, chemical composition, sampling and

criteria for conformity have been modified, and•fc iii) Tensile properties for 6 to 10 mm size have been added.

0.4 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated, expres-sing the result of a test or analysis, shall be rounded off in accordancewith IS : 2-1960J. The number of significant places retained in therounded off value should be the same as that of the specified value in thisstandard.

•Specification for copper ( third revision ) .tGlossary of terms for copper and copper alloys: Part 1 Cast form and wrought form

( main types ) ( second revision ).JRules for rounding off numerical values ( revised ) .

IS: 613 -1984

1. SCOPE

1.1 This standard covers the requirements for hard ( HD ), half-hard( HB ) and annealed ( D ) copper rods and bars for electrical purposes.

2. SUPPLY OF MATERIAL

2.1 General requirements relating to the supply of material shall conformto IS : 1387-1967*.

3. TERMINOLOGY

3.0 For the purpose of this standard, the following definition as given inIS : 3288 ( Part 1 )-1981f shall apply.

3.1 Bar/Rod — Any extruded, drawn, cold or hot rolled, forged, cast orcombination of any of these processes of solid section supplied in straightlength, whose width or greatest distance between parallel faces is greaterthan 6 mm.

3.2 Minimum Gross-Sectional Dimension — The diameter in thecase of rounds, width across flats in the case of square and hexagonalshapes, the smaller side width in the case of rectangular rods.

4. PHYSICAL CONSTANTS4.0 The constants given below are based on standards fixed by the Inter-national Electrotechnical Commission ( see Appendix A ).

4.1 Coefficient of Linear Expansion — The coefficient of linearexpansion of annealed or hard-drawn high-conductivity copper over arange of 0 to 150°C shall be taken as 0-000 017 per degree Celsius.

4.2 Mass — At a temperature of 20oG, the density of annealed or hard-drawn high-conductivity copper shall be taken as 8*89 g/cms.

4.3 Resistance of a Solid Conductor4.3.1 For the purpose of calculation, the resistance at 20° G of a

conductor of annealed high-conductivity copper, one metre in lengthof a uniform cross-sectional area of one square millimetre has been takenas 0-017 241Q.

4.3.2 The resistance of hard-drawn high-conductivity copper is afunction of its hardness, and the tensile strength is an approximateindication of the degree of hardness. Within a range from 305 to460 MPa tensile strength, the following formula has been found to express

•General requirements for the supply of metallurgical materials (first revision ) ,tGlossary of terms for copper and copper alloys: Part 1 Cast form and wrought form

main types ) ( second revision ) .

IS : 613 -

sufficiently closely the results obtained in practice, and has been adoptedin calculating the resistance of hard-drawn copper given in this specific-ation:

P = 160"where

P = percentage increase in resistivity of the hard-drawn copperwire over its resistivity when annealed, and

T = tensile strength of the hard-drawn copper wire in MPaI For the determination of the resistances of hard-drawn high-conductivity copper by the formula given above, the resistance of annealedhigh-conductivity copper at 20°C as given under 4.3.1 has been taken asbasis.4.4 'Constant Mass9 Temperature Coefficient of Resistance

4.4.1 At a temperature of 20°C, the coefficient of variation of theresistance with temperature of annealed high-conductivity copper measuredbetween two potential points rigidly fixed to the wire has been taken as0-003 93/deg G.

4.4.2 At a temperature of 20°C, the coefficient of variation of theresistance with temperature of hard-drawn high-conductivity coppermeasured between two potential points rigidly fixed to the wire has beentaken as 0-003 81/deg C, which is an average value for copper of 97percent conductivity.

NOTE — Copper which at 20°C has a resistivity of 1/58 = ( 0"017 241 )Q mm2/m is said to have a conductivity of 100 percent.

5. CHEMICAL COMPOSITION5.1 The material shall have chemical composition as given in for gradescathode copper, ETP, FRHG IS : 191 ( Part 4 )-1980*, IS : 191 ( Part 5 )-1980* or IS : 191 ( Part 6 )-1980* respectively.

k5.2 The chemical composition shall be determined either by the method'specified in IS : 440-1964f or any other'established instrumental/chemical

method. In case of dispute the procedure specified in the latest versionof IS : 440-1964f for chemical analysis, shall be the referee method.6. FREEDOM FROM DEFECTS6A The rods and bars shall be bright and clean. It shall be free fromblisters, slivers, scale, fins, spills, cracks and other defects.

•Specification for copper ( third revision ):Part 4 Cathode copperPart 5 Electrolytic tough pitch copper ( ETP )Part 6 Fire refined high conductivity copper ( FRHC )

tMethods of chemical analysis of copper ( revised ).

IS t 613 - 1984

7. MECHANICAL PROPERTIES

7.1 Tensile Test — The material, when tested in accordance withIS : 2654-1977* shall have tensile properties as given in Table 1.

7.1.1 Rods I Bars other than Rectangular — For material over 30 mmdiameter, thickness or width across flats, the test piece shall be turnedwith its centre 14-.0 mm from the surface of the material. For material ofsmaller diameter or width which may not be tested in the condition asmanufacture of the test piece shall be turned from the centre of thematerial. _ .

7.1.2 Rectangular BarsjRods — The test piece shall be taken from t h e "centre of the rod/bar.

8. DIMENSIONAL TOLERANCES

8.1 The dimensions and tolerances for round, square, rectangular andhexagonal rods/bars shall be in accordance with IS : 2826-1980j\

8.2 The tolerance on length of bar or rod, if ordered in exact length, shallbe within the limits specified in Table 2.

8.3 The straightness and/or edgewise curvature shall be as specified.

8.4 Edgewise Bending — Where the material is required for severeedgewise bending, the degree of bending shall be stated in the enquiryor order or both, and any special test requirements shall be agreed tobetween the purchaser and the manufacturer.

8.5 Radius on Edges ( Square and Rectangular Material) — If thematerial is required with radiused edges, the radius of curvature shall beagreed to between the purchaser and the manufacturer.

9. ELECTRICAL RESISTIVITY TEST

9.1 The electrical resistivity shall be measured under one of the conditionsgiven in 9.1.1 or 9.1.2.

9.1.1 Direct Measurement on the Test Sample — Resistance measurementsshall be determined on specimens of the rod after cleaning, but withoutfurther processing and annealing.

•Methods for tensile testing of copper and copper alloys (first revision ) .tDimensions for wrought copper and copper alloys rods and bars ( second revision ).

CONDITION( COMMON TO

ALL GRADES,see 5.1 )

(1)

TABLE 1 MECHANICAL PROPERTIES

MINIMUM CROSS-SEC-TIONAL DIMENSION

Over

(2)

Annealed( O )

Half-Hard(HB)

Hard( H D )

6101250

610122550

6101250

(Clauses 7.1 and 7.1.2)

RODS/BABS ( OTHER THANRECTANGULAR )

to andluding

mm

(3)

10125090

1012255090

10125090

TensileStrength

MPaf

(4)

260 Max235 Max225 Max225 Max

265 Min265 Min245 Min235 Min235 Min

350 Min325 Min295 Min265 Min

PercentageElongationon Gauge

Length,4V"A-or

50 mm, Min

(5)

40455050

1515202525

68

1015

*For information only.tlMPa = lN/mm» = 0102 kgf/mm*.

RODS/BABS ( RECTANGULAR )

TensileStrength

MPaf

(6)

260 Max235 Max225 Max

245 Min245 Min235 Min235 Min

320 Min310 Min275 Min245 Min

HARDNESS*HV ( RF )

PercentageElongationon Gauge

Length, 4 V"A"or 50 mm

Min

(8)

60 ( 65 ) Max( for all sizes )

75 ( 75 ) Min(for all sizes)

90 ( 90 ) Min(for all sizes)

CO

IS t 613 • 1984

TABLE 2 TOLERANCE ON LENGTH OF BAR/ROD IN STRAIGHT LENGTHS

( Clause 8.2 )

LENGTH OP BAR/ROD( I F ORDERED IN EXACT LENGTH )

Over

(1)mm—

150

1200

2 400

— —i

Up to andIncluding

(2)

mm

150

1200

2 400

—

TOLERANCE( Plus and Minus )

(3)

mm

1-2

1-5

2-5

5-0

9*1.2 Measurement on Test Sample After Annealing — Resistance measure-ment shall be made on specimens of the rod after cleaning andprocessing down to a diameter of approximately 2-0 mm and annealing attemperature 500° C for 30 minutes. Other equivalent annealing methodmay be used. Test specimens processed to a diameter other than 2 mmmay be used if so specified.

9.2 The electrical resistivity when tested in accordance with IS : 3635-1966* shall comply with the value given in Table 3.

CONDITION

(1)Annealed

Half-Hard 1i

?•and Hard I

TABLE 3 ELECTRICAL

MEASURED BYTHE METHOD

(2)9-1-1 or

9-1-2

9-1-1 or

9-1-2

RESISTIVITY

RESISTIVITYohm mm*/m AT

20°C, Max

(3)

0-017 37

0-017 77

0-017 37

CONDUCTIVITY( IACS ) PERCENT,

Min

(4)

99-25

97-0

9925

NOTE — The constant for converting the resistance at various temperature tothe resistance at standard temperature of 20°C and reciprocals these constants forconverting resistance at 20°C to resistance at other temperature for annealed andhard-drawn high-conductivity copper are given in Appendix B .

•Methods of test for resistance of metallic electrical resistance material.

8

IS t 613 - 1984

10. PACKING

10*1 The material shall be packed in bundles, boxes, cases or crates soas to ensure the safe transportation of the material and avoid damage intransit.

11. MARKING

11.1 Each package tagged with suitable metal tag shall bear the markingmade on them with the grade of material, name of the manufacturer, themass, size, lot number, date of manufacture and any such informationrequired by the purchaser

11.2 BIS Certification Marking

The product may also be marked with Standard Mark.

11.2.1 The use of the Standard Mark is governed by the provisions of theBureau of Indian Standards Act, 1986 and the Rules and Regulations madethereunder. The details of conditions under which the licence for the use ofStandard Mark may be granted to manufacturers or producers may be obtainedfrom the Bureau of Indian Standards.

12. SAMPLING AND CRITERIA FOR CONFORMITY

12.1 Lot — In any consignment all the copper rods/bars of the same grade( chemical composition ), size, temper and manufactured by a single firmunder essentially similar conditions of production shall be groupedtogether to constitute a lot.

12.1.1 Tests for determining the conformity of the lot to the require-ments of this specification shall be carried out on each lot separately. The

. number of bars/rods to be selected for this purpose at random over the' whole lot shall be in accordance with col 1 and 2 of Table 4.

12.2 Number of Tests and Criteria for Conformity

12.2.1 The rods/bars selected in accordance with col 1 and 2 ofTable 4 shall be inspected for freedom from defects ( see 6 ) and dimen-sions ( see 8). Any rod/bar failing to meet the requirement of one ormore of these characteristics shall be considered as defective. If thenumber of defectives found is less than or equal to the permissible numberof defectives given in col 3 of Table 4, the lot shall be considered asconforming to the requirements of these characteristics.

IS t613-1984

TABLE 4 SCALE OF SAMPLING AND PERMISSIBLENUMBER OF DEFECTIVES

( Clauses 12.1.1, 12.2.1 and 12.2.2 )

No. OF BARS/RODSIN A LOT

( ! )

Up to 100

101 to 300

301 „ 500

501 „ 1000

1 001 „ 3 000

3 001 and above

No. OF BARS/RODSIN THE SAMPLE

(2)

5

13

20

32

50

80

PERMISSIBLE NO.or DEFECTIVES

(3)

0

1

2

3

5

7

No. OP BARS/RODSFOR COPPER

CONTENT; TENSILETEST AND ELECTRI-

CAL TEST

(4)

2

3

4

5

6

7

12.2.2 From each lot the number of rods/bars to be subjected for thedetermination of copper content (see 5), tensile test (see 7) and electricalresistivity test ( see 9 ) shall be in accordance with col 1 and 4 of Table 4.One determination of all other requirements of chemical composition( see 5) shall be done for each lot irrespective of the size of the lot. Thebars/rods for these tests shall be selected out of those obtained in 12.1.1.

NOTE — The material required for chemical analysis from each of the rodsintended for testing shall be collected in accordance with IS : 1817-1971*.

12.2.2.1 In the case of determination of copper content, tensile testand electrical resistivity test, the lot shall be considered as conforming to therequirements of this specification if all the test results on different samplessatisfy the corresponding requirements.

12.2.2.2 The lot shall be declared as conforming to the requirementof other constituents if the single test result of chemical analysis obtainedfor each constituent satisfy the corresponding requirement of the specific-ation.

•Methods of sampling non-ferrous metals fpr chemical analysis.

10

IS t 613 - 1984

H 3 Retest

12.3.1 If the test results of chemical analysis fails to satisfy therequirement for any of the constituents, two more tests for that constituentshall be done on the same sample in order to confirm that the analysis hasbeen done properly. If both the test results satisfy the relevant require-ments, the lot shall be considered as conforming to the specification, other-wise not.

12.3.2 If the test results on any sample for tensile test and electricalresistivity test, fails to satisfy the requirements for any of the mechanicalproperties and electrical resistivity two, more tests shall be done on thesample selected from the same lot. If both the test results satisfy therelevant requirements the lot shall be considered as conforming to thespecification, otherwise not.

13. INFORMATION TO BE GIVEN BY THE PURCHASER

13.1 This standard contains a number of clauses in which the purchaser isallowed to exercise an option. The list of information to be given by thepurchaser in respect of these clauses is given in Appendix G.

APPENDIX A( Clause 4.0 )

INTERNATIONAL STANDARD FOR ANNEALEDHIGH-CONDUCTIVITY COPPER

A-l. STANDARD VALUES

A-1.0 The following values fixed by the International ElectrotechnicalCommission for ' Standard Annealed Copper ' have been taken as standardvalues for annealed high-conductivity copper.

A-l.l At a temperature of 20°C the volume resistivity of standard annealedcopper is 1/58 ( or 0-017 241 ) II mm«/m.

A-l.2 At a temperature of 20°G the density of standard annealed copperis 8 89 g/cm8.

A-l.3 At a temperature of 20°C the coefficient of linear expansion ofstandard annealed copper is O'OOO 017/deg C.

NOTE — The above value for the coefficient of linear expansion way be appliedto annealed copper over a temperature range of 0 to 150°C.

11

IS : 613 - 1984

A-1.4 At a temperature of 20°G the coefficient of variation of theresistance with temperature of standard annealed copper measuredbetween two potential points rigidly fixed to the wire, the metal being

allowed to expand freely, is 0-003,93 Tor g 5 * ) /deg C.

A-1.5 It follows from A-l.l and A-1.2 that at a temperature of 20°C the

mass resistivity of standard annealed copper is -^3- x 8*89 •= 0*153 23...Jo

Q g/m/m.

APPENDIX B( Clause 9.2 )

MULTIPLIER CONSTANTS AND THEIR RECIPROCALSFOR ANNEALED AND HARD-DRAWN COPPER

B-l. The constants for converting resistance at various temperatures tothe standards temperature of20°G and reciprocals of these constants forconverting resistance at 20°C to other temperatures for annealed copper ofconductivity 100 percent are given in Table 5.

TABLE 5 MULTIPUER CONSTANTS AND THEIR RECIPROCALS FORANNEALED COPPER OF CONDUCTIVITY 100 PERCENT

TEMPERATURE,°C(1)1010-5111151212-51313-51414-515155

MULTIPLIERCONSTANT

(2)

1-04091-03881-036 71-03461032 51-030 41-028 3•026 2•0241•022 1•020 0•018 0

RECIPROCAL OPCONSTANT

(3)

0-960 70-962 70-96460-966 60-968 60-970 50-972 50-974 50-976 4.0-97840*980 40-982 3

( Continutd ]

12

IS : 613 - 1984

TABLE 5 MULTIPLIER CONSTANTS AND THEIR RECIPROCALS FORANNEALED COPPER OF CONDUCTIVITY 100 PERCENT — Contd

TEMPERATURE,"C(1)16

16-5

17

17-5

18

18-5

19

19520

20-5

21

21-5

22

22-5

23

23-5

24

24-5

25

25-5

26

26.5

27

27-5

28

28-5

29

29-5

MULTIPLIERCONSTANT

(2)1-016 0

1-0139

1-01191-009 9

1007 9

1-0059

1003 9

1-002 0

1000 0

0-998 0

0996 1

0994 1

0-992 2

0-990 3

0-988 3

0986 4

0-984 5

0-982 6

0-980 7

0-978 8

0-977 0

0-975 1

0-973 20-971 4

0-969 5

0-967 7

0-965 80-964 0

RECIPROCAL OPCONSTANT

(3)

0-9843

0-986 2

0-988 20-990 2

0-992 1

0-994 1

0-996 1

0998 0

1-000 0

1-002 0

1-003 9

1-005 9

1-007 9

1-009 8

1-0118

1-0138

1-015 7

1-017 7

1-019 7

1-021 6

1-023 6

1-025 5

1-027 51-029 5

1-031 4

P033 4

1-035 4

1-037 3

( Continued)

13

IS > 613 - 1984

TABLE 5 MULTIPLIER <ANNEALED COPPER

TEMPERATURE,°C

(1)3030'531315

3232*5

3333-5

3434-53535-5

3636-5

3737-538

38-53939-5

40

40-541

41-5

42

42-5

43

43-5

CONSTANTS AND THEIR RECIPROCALS FOROF CONDUCTIVITY 100 PERCENT — Ctmtd

MULTIPLIERCONSTANT

(2)0-962 20-96040-9586

0-95680*9550

0-953 20-951 4

0-949 60-947 80-946 10-944 3

0-942 60-940 80-939 1

0-937 40-935 70-933 9

0-932 20-930 50-928 8

0-927 1

0-925 40-923 8

0-922 10-9204

0918 80-9*7 1

0-915 5

RECIPROCAL orCONSTANT

(3)1*039 3104131-043 210452

1*047 21-0491

1051 1

1-053 11-055 01-057 0T059 01-0609

1-062 91064 8

1-066 81-068 81-070 7 -

1-072 71*074 71-076 6

1-078 61-0806

1-082 5T08451*0865

1-0884

1-09041-092 4

( Continued)

I*-

14

IS 1984

TABLE 5 MULTIPLIER <ANNEALED COPPER

TEMPER ATOBB,

°c(1)44

44-5

45

45-5

46

46-5

47

47-5

48

48-5

49

49*5

50

50-5

51

51'5

52

52*5

53

53-5

54

54-5

55

55-5

56

56*5

CONSTANTS AND THEIR RECIPROCALS FOROF CONDUCTIVITY 100 PERCENT — Contd

MULTIPLIESCONSTANT

(2)

0-913 8

0-912 2

0-910 5

0-9089

0-907 3

0-905 7

09041

0-902 5

0-900 9

0-899 3

0-897 7

0896 1

0-8945

0*893 0

0-891 4

0-8898

0888 3

0-886 7

0-885 2

0-883 7

0-882 1

0-880 6

0879 1

0-877 6

0-876 1

0-874 6

RECIPROCAL OTCONSTANT

(3)

1-0943

1-096 3

1-098 3

1-100 2

1-102 2

1-1041

1-1061

1-108 1

rnoo1-1120

11140

1-1159

1-117 9

1-1199

1-1218

1-123 8 '

1-1250

1-127 7

1-129 7

1-1317

1-133 7

1-1356

11376

1-139 5

1-1415

1-143 4(Continued)

15

IS : 613 . 1964

TABLE 5 MULTIPLIERANNEALED COPPER

TEMPER ATUBE,°C

(1)5757-55858*55959'56060-56161-56262-56363-56464-56565-566

66-56767-5686 8 56969'570

CONSTANTS AND THEIR RECIPROCALS FOROF CONDUCTIVITY 100 PERCENT — Contd

MULTIPLIERCONSTANT:

(2)

0-873 00-871 60-870 10-868 60-867 20-865 60-864 20-862 70-861 20-859 80-858 40-856 90855 40-854 00-852 60851 10849 70848 3084690-845 50-842 70-844 10-841 30-839 90-838 50-837 10-835 8

RECIPROCAL OFCONSTANT

(3)

T145 4114741149 31-15131-153 31155 21-1572T1592116111163 11-165 1T16701-169 01-171011729117491-176 8117881-18081-182 71-186 71-184 71188 61-19061-19451-19261-196 5

NOTE 1 — Given the resistance of a wire at 7"°C, the resistance at 20cC is found bymultiplying the resistance at 7~°C by the constant for 7~°C given in col 2. Conver-sely, given the resistance at 20°C, the corresponding resistance at 7~°C is found bymultiplying the resistance at 20°C by the reciprocal of constant for T°C givenin col 3.

NOTE 2 — The temperature coefficient of resistance of copper varies slightlyfrom sample to sample according to its exact conductivity. The figures given inthis table are based on the international standard coefficient of 0003 93/deg C at20°C. The error in using this table for copper within the range of conductivity of 99to 101 percent will not exceed 0'06 percent.

16

IS t 613 • 1984

B-2. The constant for converting resistances at various temperatures tothe standard temperature of 20°C and reciprocals of these constants forconverting resistances at 20°G to other temperatures for hard-drawncopper of conductivity 97 percent are given in Table 6.

TABLE 6 MULTIPLIER CONSTANTS ANDFOR HARD-DRAWN

TEMPER ATTJRK

°c(1)

10

10-5

1111-5

1212-51313-5

1414-515

15-516

16-5

1717-5

1818-5

1919-5

2020-5

2121-52222-523

23-5

RECIPROCALS OF CONSTANTSCOPPER OF CONDUCTIVITY 97 PERCENT

MULTIPLIERCONSTANT

(2)

1039 6

1-037 6

1-035 51-033 5

1-0314

1-029 4

1-027 41-025 4

1-023 41-02141-0194

1-017 4

1-015 5

1-013 5

T01161-009 6

1-007 71-005 71-003 81-001 9

1-000 0

0998 1

0-996 2

0-994 30-992 40*990 6

0-988 70-986 8

RECIPROCAL OFCONSTANT

(3)

0-96190-963 8

0-965 7

0-967 60-969 5

0-971 40-973 3

0-975 2

0-977 10-97900-981 0

0-982 90-984 8

0-986 70988 6

0-990 50-992 4

0-994 30-996 2

0-998 11-0000

1-001 9

1-003 81-005 7

1-007 61-009 51-01141-013 3

( Continued)

17

IS: 613 -1984

TABLE 6 MULTIPLIER CONSTANTS AND RECIPROCALS OF CONSTANTSFOR HARD-DRAWN COPPER OF CONDUCTIVITY 97 PERCENT — Contd

TEMPERATURE°C

(024

24-52525-5

26

26-5

2727-5

2828-529

29-5

3030-5

31

31-5

32

32*533

33-534

34-535

35-5

36

36-537

MULTIPLIERCONSTANT

(2)

0985 00-983 1

0-981 3

0-979 5

0-977 7

0975 8

0-974 0

0-972 20-97040-968 60-966 8

0-965 10-963 3

0-9615

0-959 8

0-9580

0-956 3

0-954 5

0952 80-951 1

0-94940-947 60-945 9

0-94420-942 5

0-940 9

0-939 2

RECIPROCAL OFCONSTANT

(?)1-015210171

10191

1-021 0

1-022 9

1-0248

1-026 71-028^

1-03051-032 41034 3

1-036 21-038 1

1-040 0

1-041 9

1-043 81-045 7

1047 6

1-049 51-051 4

1-053 4

1-055 21-057 21-059 1

1-061 0

1-062 91-064 8

(Continued)

18

IS: 613 - 1984

TABLE 6 MULTIPLIER CONSTANTS AND RECIPROCALS OF CONSTANTSFOR HARD-DRAWN COPPER OF CONDUCTIVITY 97 PERCENT — Contd

TEMPER ATTJRE°C(1)37-5

38

38-5

39

39-5

40

40-5

41

41-5

42

42-5

43

43-5

44

44-5

45

45-5

46

46-5

47

47-5

48

48-5

49

49-5

50

50-5

51

51-5

MULTIPLIERCONSTANT

(2)0-937 5

0-935 8

0-934 2

0-932 5

0-9308

0-929 2

0-927 6

0-925 9

0-924 3

0*922 7

0-9210

0-919 4

0-917 8

0916 2

0-914 6

0-913 0

09114

0-909 9

0-908 3

0-906 7

0-905 2

0-903 6

0-902 1

0-900 5

0-899 0

0-897 4

0-895 9

0-894 4

0-892 8

RECIPROCAL OFCONSTANT

(3)1-066 7

1-068 6

1-070 5

1-072 4

1-074 3

1-076 2

1-078 1

1-080 0

1-081 9

1-083 8

1-085 7

1-087 6

T089 5

1-091 4

1-0933

1-095 3

1-097 2

1-099 1

1-1010

1-102 9

1-10481-106 7

1-108 6

1-1105

1-1124

1-1143

1-1162

1-118 1

1-120 0( Continued )

19

IS: 613 - 1984

TABLE 6 MULTIPLIER CONSTANTS AND RECIPROCALS OF CONSTANTSFOR HARD-DRAWN COPPER OF CONDUCTIVITY 97 PERCENT — Contd

TBlfPEBATUKE

°c(1)

52

52-553

5 3 5

54

54-5

55

5 5 5

56

56-557

57-5

58

58'559

59-5

60

60-561

6 1 5

6262-5

63

63-5

6464-565

65-5

66

MULTIPLIERCONSTANT

(2)

0-891 3

0-88980-888 30-886 808853

0883 8

0-882 30-880 90-879 40-877 9

0-876 40-875 00-873 5

0-872 10870 60-869 2

0-867 8

0-866 30-86490-863 5

0-862 1

0-860 6

0-85920-857 8

0-856 4

0-855 0

0-853 6

0-852 30-850 9

RECIPROCALCONSTANT

(3)

1-12191-12381-1257

1127 61-129 5

1-131 4

1-13341-135 31-137 2T139 1

T141 0T142 91-14481-146 7

1148611505

1-152 4

T1543

1-156 21158 1

1-160 0

1-16191-16381165 7

1-1671

1-169 5

11715

1-173 41-1753

( Continued)

20

IS: 613 - 19§4

TABLE 6 MULTIPLIER CONSTANTS AND RECIPROCALS OF CONSTANTSFOR HARD-DRAWN COPPER OF CONDUCTIVITY 97 PERCENT —Contd

TEMPEBATURE, MULTIPLIER RECIPBOCAL

°G CONSTANT CONSTANT

(1) (2) (3)

665 0-849 5 I1177 2

67 0848 1 1-179.1

675 0-8468 T1810

68 0-845 4 T182 9

68-5 0-8440 1-1848

69 0-842 7 1186 7

695 08413 T188670 08400 11905

NOTE 1 — Given the resistance of a wire at T°C, the resistance at 20°C u foundby multiplying the resistance at 7"°C by the constant for T°C given in col 2.Conversely, given the resistance at 20°C, the corresponding resistance at 7~°C is foundby multiplying the resistance at 20°C given in col 3.

NOTE 2 — The temperature coefficient of resistance of copper varies slightlyfrom sample to sample according to its exact conductivity. The figures given inthis table are based on a coefficient of 0'003 81/degC at 20°C which is an averagevalue for copper of 97 percent conductivity. The error in using this table for copperwithin the range of conductivity of 96 to 98 percent will not exceed 0'06 percent.

APPENDIX C{Clause 13.1)

INFORMATION TO BE GIVEN BY THE PURCHASER

C-l. Whether the purchaser wishes to inspect the material at thesupplier's works ( see 2 ).

C-2. The chemical composition grade required {see 5).

C-3. Dimensional tolerances {see 8).

C-4. Marking details ( see 11 ).

C-5. Sampling and criteria for conformity ( see 12 ).

21

INTERNATIONAL SYSTEM OF UNITS ( SI UNITS )

Base Units

QuantityLengthMassTimeElectric currentThermodynamlc

temperatureLuminous intensityAmount of substance

Supplamentary Units

Quantity

Plane angleSolid angle

Derived Units

Quantity

ForceEnergyPowerFluxFlux densityFrequencyElectric conductanceElectromotive forcePressure, stress

Unitmetrekilogramsecondamperekelvin

candelamole

Unit

radiansteradian

Unit

newtonloulewattweberteslahertzSiemensvoltpascal

Symbolm

kgsAK

cdmol

Symbol

radst

Symbol

NJWWbTHzSV ,Pa

111111111

Definition

N =J =

W =Wb -

T =Hi = 1

S =V =

P a -

1 kg.m/s*t N.m1 J/sI V.s1 Wu/m»

c/s(s-i)1 A/V1 W/A1 N/m*

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