Din 48204

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621.315.145-034.14'71 • 677.73

DEUTSCHE

NORMEN

July 1974

DIN Stranded Conductors Steel-reinforced Aluminium Conductors

£

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For connection with Publication 209/1966 issued by the International E~ectrotechnic~ Commission (rEO), see Explanations. I . .. . . ".r. Designation o! a steel-reinforced aluminium conductor (Al/St) with a nominal c;ro·ss-section 0!95/15: '. ' . Steel-reinforced alUllliniumconductor 95/15 DIN 48204 or Al/St 95/15 DIN 48204 I

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Nominal cross-section

Cross-section ratio

Weight1)

Conductor diameter

kg/km

Al/St

.E

Calculated breaking load2)

Continuous loadin~ capacity)

mm2

=

mm

=

N

17,85 27,8 40 75,7

6 6 6 1,4

5,4 6,8 8,1 11,2

62 97 140 372

5950 9200 12650 45000

90 125 145

50/8 50/30 70/12 95/15

56,3 81 81,3 109,7

6 1,7 6 6

9,6 11,7 11,7 13,6

196 378 284 383

17100 43800 26800 35750

170

95/55 105/75 120/20 120/70

152,8 181,5 141,4 193,3

1,7 1,4 6 1,7

16 17,5 15,5 18

712 891 494 901

79350 108450 45650 100000

125/30 150/25 170/40 185/30

157,7 173,1 211,9 213,6

4,3 6 4,3 6

16,1 17,1 18,9 19

591 605 794 746

57600 55250 76750 66200

425 470 520 535

210/35 210/50 230/30 240/40

243,2 261,6 260,7 282,5

6 4,3 7,7 6

20,3 21 21 21,9

850 981 877 987

74900 93900 73100 86400

590 610 630 645

265/35 300/50 305/40 340/30

297,8 353,7 344,1 369,1

7,7 6 7,7 11,3

22,4 24,5 24,1 25

1002 1236 1160 1180

83050 107000 99400 92900

680 740 740 790

380/50 385/35 435155 450/40

431,5 420,1 490,6 488,2

7,7 11,3 7,7 11,3

27 26,7 28,8 28,7

1453 1344 1653 1561

123100 104800 136450 120750

840 850 900 920

490/65 495/35 510/45 550/70

553,9 528,2 555,5 621,3

7,7 14,5 11,3 7,7

30,6 29,9 30,7 32,4

1866 1646 1778 2092

153100 121800 136650 170600

960 985 995 1020

560/50 570/40 650/45 680/85 1045/45

611,2 610,7 698,8 764,6 1090,9

11,3 14,5 14,5 7,7

32,2 32,2 34 36 43

1954 1888 2171 2566 3251

148950 136 200 155500 206 250 217600

1040 1050 1120 1150 1580

mm2

16/2,5 25/4 35/6 44/32

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Design cross-section

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A

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290 350

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1) The

conductor a density of

23,1

-

410

-

weights have been calculated with a density of 2.7 kg/dm3 for aluminium kg/dm3 for galvanized steel wires and the mean of the lay ratios.

wires

and with

7.8

;~ ~~

2) The calculated breaking loads indicated above apply subject to the use of steel III according DIN 48200 Part 3. They are determined according to DIN 48202 Part 1. For other types of steel ing to DIN 48200 Part 3. the values are to be calculated according to DIN 48202 Part 1.

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3) Reference

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values

valid

up to 60 Hz at a wind speed of 0.6 ~s

ambient temperature of 35°C In special

circumstances

and solar irradiation

to accord-

giving an initial

and a final conductor temperature of 80 DC.

involving

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Page 2

DIN 48204

Conductor construction Aluminium Nominal cross-section mm2

component

Wires Number

Steel

Covering

Diameter mm

Number of layers

Wires

ross-section mm2

Number

l

component Core

Diameter mm

Diameter mm

Cross-section mm2

1612,S 25/4 35/6 44/32

6 6 6 14

1,8 2,25 2,7 2

1 1 1 1

15,3 23,8 34,3 44

1 1 1 7

1,8 2,25 2,7 2,4

-

50/8 50/30 70/12 95/15

6 12 26 26

3,2 2,33 1,85 2,15

1 1 2 2

48,3 51,2 69,9 94,4

1 7 7 7

3,2 2,33 1,44 1,67

6,99 4,32 5,01

8 29,8 11,4 15,3

95/55 105/75 120/20 120170

12 14 26 12

3,2 3,1 2,44 3,6

1 1 2 1

96,S 105,7 121,6 122

7 19 7 7

3,2 2,25 1,9 3,6

9,6 11,25 5,7 10,8

56,3 75,S 19,8 71,3

125/30 150/25 170/40 185/30

30 26 30 26

2,33 2,7 2,7

127,9 148,9 171,8 183,8

7 7 7 7

2,33 2,1 2,7 2,33

6,99 6,31 8,1 6,99

29,8 24,2

3

2 2 2 2

210/35 210/50 230/30 240/40

26 30 24 26

3,2 3 3,5 3,45

2 2 2 2

209,1

212,1 230,9 243

7 7 7 7

2,49 3 2,33 2,68

7,47 9 6,99

34,1 49,S 29,8 39,5

265/35 300/50 305/40 340/30

24 26 54 48

3,74 3,86 2,68 3

2 2 3 3

263,7 304,3 304,6 339,3

7 7 7 7

2,49 3 2,68 2,33

7,47 9 6,99

34,1 49,5 39,S 29,8

380/50 385/35 435/55 450/40

54 48 54 48

3 3,2 3,2 3,45

3 3 3 3

382 386 434,3 448,7

7 7 7 7

3 2,49 3,2 2,68

9 7,47 9,6 8,04

49,S 34,1 56,3 39,S

490/65 495/35 510/45 550/70

54 45 48 54

3,4 3,74 3,68 3,6

3 3 3 3

490,3

494,1 510,2 550

7 7 7 7

3,4 2,49 3,6

10,2 7,47 8,61 10,8

63,6 34,1 45,3 71,3

560/50 570/40 650/45 680/85

48 45 45 54

3,86 4,02 4,3 4

3 3 3 3

561,7 571,2 653,5 678,6

7 7 7 19

3 2,68 2,87 2,4

9 8,04 8,61 12

49,5 39,5 45,3 86

1045/45

72

4,3

4

1045,6

7

2,87

8,61

45,3

Aluminium component of the conductors Cross-section ratio

Aluminium component of total weight

Al/St

% 1,4

32,7

1,7 4,3

37,4 59,8

6

single-layer

6 multi-layer 7,7 11,3

67,4 67,9 72,7

14,5

79,S 83,2

23,1

89,0

7,2

8,04

8,04

2j?7

2,55 4 5,7 31,7

40,1

29,8

Direction of lay Alternating in successive layers in the case of multi-layer conductors. The outer layer must be right-handed (Z direction).

Lay

ratio Length of a complete turn of the layer External diameter of,the layer The lay ratios are Steel component 1st layer 13 to 28 2nd layer 12 to 24

a8

follows: Aluminium external middle internal

component 10 to 14 10 to 16 10 to 17

In the case of conductors with multiple layers, the lay ratio of a layer must not be larger than that of the layer directly below it.

(

rDIN 48204

Page 3

Other relevant standards For wires for stranded conductors, aluminium wires, see DIN 48200 Part 5 For wires for stranded conductors, steel wires, see DIN 48200 Part 3 For wires and conductors for lines, wires and conductors of aluminium and steel and steelreinforced aluminium conductors, technical conditions of delivery, see DIN 48202 Part 1 For stranded conductors, E-!1MgSi steel-reinforced conductors, see DIN 48206

Explanations In 1959 a working group set up by Technical Committee TC 7 "Aluminium" of the IEC and consisting of representatives of the United States, Canada, Great Britain, France, Italy, Sweden, Switzerland and Germany started to prepare supply proposals for bare stranded aluminium conductors, steel-reinforced stranded aluminium conductors, stranded E-AlMgSi conductors and steel-reinforced stranded E-AlMgSi conductors; these proposals were intended as directions. The work of preparing these directions was based on the standards of the participating countries and on 7 further specifications prepared by other countries. The first stage of the work consisted of drawing up provisions regarding the properties of the materials used for the stranded conductors. On successful completion of these activities the results presented by TC 7 of the IEC at the Aix-les-Bains meeting on 27.5.1964 were adopted and published as follows: IEC Publication 207 (1st edition 1966) Aluminium stranded conductors Conducteurs cables aluminium lEC Publication 208 (1st edition 1966) Aluminium alloy stranded conductors (aluminium-magnesium-silicon type) Conducteurs cables en alliage d'aluminium (type aluminium-magnesium-silicium) IEC Publication 209 (1st edition 1966) Aluminium conductors, steel-reinforced Conducteurs en aluminium-acier IEC Publication 210 (1st edition 1966) Aluminium alloy conductors, steel-reinforced Conducteurs en alliage d'aluminium-acier These Publications contain physical and technological data for the materials (wires) to be used, plus all necessary data for satisfactory conductor construction as well as the identification numbers resulting therefrom and the test methods and procedures necessary for determining the values concerned. In contrast with this, DIN standards consist of separate parts covering the materials to be used, and the individual wires and stranded conductors, and these are supplemented by standardized conditions of delivery. The stranded conductor constructions indicated in the IEC publications serve only for guidance. Although the dimensions of the wires ~sed in the various stranded conductors are not specified, nevertheless tolerances are specified for the diameter ranges of the wires. To make it possible under given cross-section ratios for closely laid-up conductors to be supplied, it has been necessary to dispense with rounded values for the individual wires. The cross-section ratios of the aluminium component relative to the steel component correspond with those of IEC Publication 209. In addition, DIN 48204 also includes stranded conductors with a cross-section ratio Al : Fe = 14.5: 1 and 23.1 : 1; these ratios are of interest for the purpose of supervoltage conductors and switchgear installations. Newly included are values for the calculated breaking load according to DIN 48202 Part 1, November 1966 issue, Section 3.4 and the thermal limiting values for continuous loading capacities at 0.6 m/s windspeed and solar irradiation giving an initial ambient temperature of 35 °c and a final conductor temperature of 80 °C. The IEC Publication contains no data on these points. Figures for continuous loading capacity have not been given for steel-reinforced aluminium' conductors with cross-section ratios of 1.4 : 1 and 1.7 : 1 which are used solely as earth wires on overhead lines. As a departure from IEC Publication 209, the density of aluminium is 2.7 kg/dm3, whereas the IEC ~ives 2.703 kg/dm3• In response to requests by users and manufacturers, the Standard has had added to it a table giving the percentage aluminium component for various cross-section ratios. It appears justifiable to include these particulars in the Standard so that a standard basis is available for calculating the cost of conductors.