ACSR Use Galvanized Steel Cable Wire Rope 1.0-4.8mm Gauge With Adhesive And Flexible

Table 1. Initial Settings for Determining Stress 1% Extension

Nominal Wire Diameter, mm

Initial Stress, N/mm²

Initial setting of extensometer for a gauge length of 250mm²

1.24

2.25

100

0.125

2.25

3

200

0.25

3

4.75

300

0.375

4.75

5.5

400

0.5

For other gauge lengths, multiply the initial setting by the gauge length in mm divided by 250.

Table 2. Zinc Coating Requirements

Nominal Wire Diameter, mm

Class A

Class B

Class C

Class D

Class E

Over

Up to and incl.

Min. mass of Zn g/m2

Min. no. of one minute dips

Min. mass of Zn g/m2

Min. no. of one minute dips

Min. mass of Zn g/m2

Min. no. of one minute dips

Min. mass of Zn g/m2

Min. no. of one minute dips

Min. mass of Zn g/m2

Min. no. of one minute dips

1.24

1.5

185

2

370

3.5

150

1

365

3

185

2

1.5

1.75

200

2

400

3.5

160

1.5

460

3.5

200

2

1.75

2

215

2.5

430

4

175

2

550

4

215

2.5

2

2.25

215

2.5

430

4

175

2

550

4

250

3.5

2.25

2.75

230

3

460

4

190

2.5

640

5

250

3.5

2.75

3

230

3

460

4

190

2.5

640

5

250

3.5

3

3.5

245

3.5

490

4

205

3

730

6

250

3.5

3.5

4.25

260

3.5

520

4

260

3.5

730

6

260

3.5

4.25

4.75

275

4

550

4

275

4

775

6

275

4

4.75

5

200

4

580

5

290

4

825

6

290

4

5

5.25

290

4

580

5

290

4

825

6

290

4

5.25

5.5

290

4

580

5

290

4

825

6

290

4

Table 3. Mechanical Properties of ST1A Wires

Nominal wire diameter mm

Diameter tolerance

Stress at 1% extension, MPa

Tensile strength, MPa

Elongation on 250mm

Mandrel diameter for wrapping test

No. of torsion twists

Over

Up to and incl.

mm

N/MM2

N/MM2

%

Min.

Min.

Min.

xd

Min.

1.24

1.5

±0.03

1170

1400

3

1

18

1.5

1.75

±0.03

1170

1400

3

1

18

1.75

2.25

±0.03

1170

1400

3

1

18

2.25

2.75

±0.04

1140

1350

3

1

16

2.75

3

±0.05

1140

1350

3.5

1

16

3

3.5

±0.05

1100

1300

3.5

1

14

3.5

4.25

±0.06

1100

1300

4

1

12

4.25

4.75

±0.06

1100

1300

4

1

12

4.75

5.5

±0.07

1100

1300

4

1

12

Table 4. Mechanical properties of ST2B Wires

Nominal wire diameter mm

Diameter tolerance

Stress at 1% extension, MPa

Tensile strength, MPa

Elongation on 250mm

Mandrel diameter for wrapping test

Over

Up to and incl.

mm

N/MM2

N/MM2

1.24

1.5

±0.05

1100

1300

4

1

1.5

1.75

±0.05

1100

1300

4

1

1.75

2.25

±0.05

1100

1300

4

1

2.25

2.75

±0.06

1070

1250

4

1

2.75

3

±0.06

1070

1250

4

1

3

3.5

±0.07

1000

1200

4

1

3.5

4.25

±0.09

1000

1200

4

1

4.25

4.75

±0.10

1000

1200

4

1

4.75

5.5

±0.11

1000

1200

4

1

Table 1. Initial Settings for Determining Stress 1% Extension

Nominal Diameter of Galvanized Steel Wire

Initial Stress N/mm²

Initial Setting of Extensometer mm/mm

>

<

mm

mm

1.18

2.24

95

0.05

2.24

3.15

190

0.10

3.15

5.00

285

0.15

Table 2. Tensile Strength and Stress at 1% Elongation

Nominal Diameter of Galvanized Steel Wire

Tensile Strength minimum N/mm2

Stress at 1% elongation minimum N/mm2

>

<

mm

mm

1.18

2.24

1400

1180

2.24

3.15

1320

1140

3.15

5.00

1320

1100

Table 3. Properties for High Strength Galvanized Steel Wire for ACSR

Tensile strength grade N/mm2, min.

1550

1700

1800

Nominal diameter of galvanized wire

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel wrap test dia.

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel Wrap test dia.

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel wrap test dia.

>

≤

mm

mm

1.18

1.32

1260

3.0

1d

1320

3.0

2d

1370

3.0

3d

1.32

1.80

1260

3.5

1d

1320

3.0

2d

1370

3.0

3d

1.80

2.24

1260

3.5

2d

1320

3.0

2d

1370

3.0

3d

2.24

2.72

1260

3.5

2d

1320

3.5

3d

1370

3.0

3d

2.72

2.90

1260

3.5

2d

1320

3.5

3d

1370

3.0

3d

2.90

4.00

1220

4.0

3d

1280

3.5

3d

–

–

–

4.00

5.00

1220

4.0

3d

–

–

–

–

–

–

d=Nominal diameter of galvanized wire

L₀= Original Gauge Length

Table 4. Conversions of Tensile Strength and Stress at 1% Elongation

N/MM²

tonf/in²

1100

71.2

1140

73.8

1180

76.4

1220

79.0

1260

81.6

1280

82.9

1320

85.5

1370

88.7

1400

9.07

1550

100.4

1700

110.1

1800

116.6

Table 1. Zinc Coating

Specified Diameter of Coated Wre

Class A

Class C

1.6-1.9

210

630

>1.9-2.3

220

440

660

>2.3-2.7

230

460

690

>2.7-3.1

240

480

720

>3.1-3.5

260

520

780

>3.5-3.9

270

540

810

>3.9-4.5

275

550

825

>4.5-4.8

300

600

900

Table 2. Tensile Requirements

Specified Diameter

Stress at 1 % Extension min Mpa

Ultimate Tensile Strength min MPA

Elongation in 250mm, min, 1%

Class A

Class B

Class C

Class A

Class B

Class C

Class A

Class B

Class C

1.6-2.3

1310

1240

1170

1450

1380

1310

3

3

3

>2.3-3.05

1280

1210

1140

1410

1340

1280

3.5

3

3

>3.05-3.6

1240

1170

1100

1410

1340

1280

4

3

3

>3.6-4.8

1170

1100

1070

1380

1280

1240

4

4

4

Table 3. Initial Settings for Determining Stress 1% Extension

Specified Diameter, mm

Initial Stress, MPA

Initial Setting of Extensometer, mm/mm

1.6-2.3

100

0.0005(0.05% extension)

>2.3-3.05

190

0.0010(0.10% extension)

>3.05-4.8

290

0.0015(0.15% extension)

Table 4. Mandrel Size for Adherence Test

Specified Wire Diameter,mm

Ratio of Mandrel Diameter to Wire Diameter

1.6-2.3

3

>2.3-3.05

4

>3.05-4.8

5

Table 5. Permissible Variations in Diameter of Zinc-Coated Steel Wire

Specified Diameter, mm

Permissible Variation, mm

Plus

Minus

1.6-2.3

0.04

0.03

>2.3-3.05

0.05

0.05

>3.05-3.6

0.08

0.05

>3.6-4.8

0.1

0.08

Dia. of strand, in(mm)

Minimum Breaking Strength of Strand,1bf(kN)

Weight of Zine Coating, g/m²

High Strength Grade

Extra High Strength Grade

CLASS A

3/16(4.76)

2850(12.677)

3990(17.748)

153

1/4(6.35)

2850(21.129)

6650(29.581)

183

5/16(7.94)

8000(35.586)

11200(49.820)

244

3/8(9.52)

10800(48.040)

15400(68.503)

259

7/16(11.11)

14500(64.499)

20800(92.523)

275

1/2(12.70)

18800(83.627)

26900(119.657)

275

Dia of Wire, mm

Tensile Strength, Mpa

Stress at 1% Extension, Mpa

Coating, g/m²

CLASS A

CLASS B

0.80-1.57

1000-1550

/

50-153

/

1.57-1.90

1000-1550

/

153-210

/

1.90-2.30

1000-1550

1310

220

440

2.30-2.70

1000-1550

1280

230

460

2.70-3.10

1000-1550

1280

240

480

3.10-3.50

1000-1550

1240

260

520

3.50-3.90

1000-1550

1170

270

540

3.90-4.50

1000-1550

1170

275

550

4.50-4.80

1000-1550

1170

300