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Power-Telecommunication Application

Messenger Wire

Galvanized Steel Strands

Characteristics

We line-up, depending on the purpose of application, various grades of product such as the one with smaller diameter and higher tensile etc., with which we have been providing based on the specification meeting to JIS G3537 Galvanized Steel strands over several decades.

Application

In order for the power cable being transmitted with overhead line, messenger wire will minimize any tension over the power cable by hanging over the line between the utility poles.

Specification

Grade 1 2(a) 2(b) 3(a) 3(b)
Cross Section View
Construction 3 wire strands 7 wire strands 19 wire strands
Construction Symbole 1 x 3 1 x 7(a) 1 x 7(b) 1 x 19(a) 2 x 19(b)
Classification of steel strands based on standard tensile strength, from 1 through 3.
Grade 1 2 3
Tensile Strength of wire N/mm² 1230 880 690
Classification of steel strands based on coating amount of zinc.
Grade Extra A A B
Amount of Zinc Coating Extra thick coating Thick coating Thin coating
Nominal Diameter of Wire and Diameter Tolerance of wire composing strands

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Nominal
Diameter
(mm)
Diameter
Tolerance
(mm)
min. Breaking Loads(kN) Elongation(%) Torsion
1 2 3 1 2 3 1 2
1.00 ±0.05 0.961 0.696 0.539 2.0 2.0 2.0 18 14
1.20 ±0.05 1.38 1.00 0.775 2.0 2.0 2.0 18 14
1.40 ±0.05 1.88 1.36 1.06 2.0 2.0 2.0 18 14
1.60 ±0.05 2.46 1.78 1.38 2.0 2.0 2.0 18 14
1.80 ±0.06 3.12 2.25 1.75 3.0 3.0 3.0 16 12
2.00 ±0.06 3.85 2.78 2.16 3.0 4.0 4.0 16 12
2.30 ±0.06 5.09 3.67 2.85 3.0 4.0 4.0 16 12
2.60 ±0.08 6.51 4.69 3.65 3.0 4.0 4.0 16 12
2.90 ±0.08 8.10 5.83 4.53 3.0 4.0 4.0 14 10
3.20 ±0.08 9.90 7.10 5.52 4.0 5.0 5.0 14 10
3.50 ±0.10 11.8 8.49 6.60 4.0 5.0 5.0 14 10
3.80 ±0.10 13.9 10.0 7.79 4.0 5.0 5.0 14 10
4.00 ±0.10 15.4 11.1 8.63 4.0 5.0 5.0 14 10
4.30 ±0.10 17.8 12.8 10.0 4.0 5.0 5.0 12 10
4.50 ±0.10 19.5 14.0 10.9 4.0 5.0 5.0 12 10
5.00 ±0.10 24.0 17.4 13.4 4.0 5.0 5.0 12 10
Pitch of outer lay
Grade Pitch of outer lay
1 Nominal Diameter of wire 30 ± 5 times
2 Nominal Diameter of wire 40 ± 5 times
3 Nominal Diameter of wire 70 ± 10 times
Breaking Load for Steel Strands

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Grade Number of
Wire/Nominal
Diameter
(Wire/mm)
Calculated
Diameter
of Strands(mm)
Calculated Cross
Section Area
of Strands
(mm²)
min. Breaking Loads
of Steel Strands (kN)
Nominal Mass
(kg/km)
1 2 3
1 3/2.90 6.2 19.8 22.4 16.1 12.6 156
3/3.20 6.9 24.1 27.4 19.6 15.2 190
3/3.50 7.5 28.9 32.5 23.4 18.2 228
3/4.00 8.6 37.7 42.5 30.6 23.8 297
3/4.30 9.3 43.6 49.2 35.5 27.7 344
3/4.50 9.7 47.7 53.8 38.7 30.0 376
2 7/1.00 3.0 5.50 6.19 4.48 3.47 43.5
7/1.20 3.6 7.92 8.90 6.44 4.99 62.7
7/1.40 4.2 10.8 12.2 8.78 6.83 85.3
7/1.60 4.8 14.1 15.9 11.5 8.90 111
7/1.80 5.4 17.8 20.1 14.4 11.3 141
7/2.00 6.0 22.0 24.8 17.8 13.9 174
7/2.30 6.9 29.1 32.8 23.6 18.3 230
7/2.60 7.8 37.2 42.0 30.2 23.5 294
7/2.90 8.7 46.2 52.2 37.6 29.2 366
7/3.20 9.6 56.3 63.7 45.7 35.6 446
7/3.50 10.5 67.3 75.8 54.7 42.5 533
7/3.80 11.4 79.3 89.6 64.4 50.1 628
7/4.00 12.0 88.0 99.1 71.4 55.6 696
7/4.30 12.9 102 115 82.8 64.4 805
7/4.50 13.5 111 126 90.3 70.1 881
7/5.00 15.0 137 155 112 86.5 1090
3 19/1.60 8.0 38.2 42.1 30.4 23.6 304
19/1.80 9.0 48.3 53.3 38.4 29.8 384
19/2.00 10.0 59.7 65.9 47.5 36.9 474
19/2.30 11.5 78.9 87.0 62.8 48.8 627
19/2.60 13.0 102 112 80.1 62.4 802
19/2.90 14.5 125 138 100 77.5 997
19/3.20 16.0 153 170 122 94.4 1210
19/3.50 17.5 183 201 145 113 1450
19/4.00 20.0 239 263 189 147 1900

Messenger Wire (Zinc-Aluminum Coating)
Zinc –Aluminum coated Steel Strands

Characteristics

Comparison with regular galvanized product, our Zinc-Aluminum products has much more superior characteristics of anti-corrosion, so called tough coating against rust. Depending on the usage, products we offer includes small diameter or high tensile etc.

Application

Used for Anti-brine type of Telecommunication Overhead line.
Zinc-aluminum alloy coating on surface will suite anti-corrosion.

Specification

Nominal Diameter
(mm)
Diameter Tolerence
(mm)
Breaking Load
(kN)
Elongation
(%)
Torsion Amount of Coating
(g/m²)
2.00 ±0.06 3.85 3.0 16 250
2.30 ±0.06 5.09 3.0 16 300
2.60 ±0.08 6.51 3.0 16 300
2.90 ±0.08 8.10 3.0 14 300
3.20 ±0.08 9.90 4.0 14 300
3.50 ±0.10 11.77 4.0 14 300
4.00 ±0.10 15.40 4.0 14 300
Number of Wire/Nominal Wire Diameter
(Wire/mm)
Calculated diameter of strands
(mm)
Calculated cross section area of strands
(mm²)
Breaking Loads of Strands
(kN)
Nominal Mass
(kg/km)
7/2.00 6.0 22.0 24.80 174
7/2.30 6.9 29.1 32.75 230
7/2.60 7.8 37.2 42.00 294
7/2.90 8.7 46.2 52.71 366
7/3.20 9.6 56.3 63.70 446
7/3.50 10.5 67.3 75.81 533
7/4.00 12.0 88.0 99.10 696

Power Transmission

ACSR (Aluminum Conductor Steel Reinforced)

Characteristics

Our steel product is used for a core in order to reinforce ACSR.
The steel core design is galvanized wire strands required to be strictly reliable with mechanical characteristics. The line-up of our products are fully prepared for such high grade specification.

Application

ACSR, mainly used for overhead and long-distance high-voltage transmission line, is indispensable for the power transmission network relating to "Smart Grid", the advanced technology currently attracted. Thus our products contribute to the sector of infrastructure. Since the renewable energy derived from natural energy has drawn public attention recently, which yet get impacted investment, the power distribution network will be increasing more along with newly installed power generators. As ACSR is used globally in popular, we have been not only selling in Japan but also exporting to many countries.
For our product being manufactured over decades with accumulated technology, we have variety of products including ultra high tensile class and extra anti-corrosion galvanized strands available for our market.

Mechanical Properties of Galvanized Steel Strands

Galvanized Steel Strands

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Diameter of Wire min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating min. Uniformity Construction Min. Breaking Loads
mm Mpa % Times g/m² Times   kN
2.0 1,320 4.0 20 215 2 7/2.0 27.6
2.3 230 7/2.3 36.5
2.6 3 7/2.6 46.6
3.2 1,270 4.5 16 245 4 7/3.2 67.9
3.8 260 7/3.8 95.8
4.5 1,230 5.0 275 7/4.5 130.1
Extra Strength Galvanized Steel Strands

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Diameter of Wire min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating min. Uniformity Construction Min. Breaking Loads
mm Mpa % Times g/m² Times   kN
2.0 1,770 4.0 20 215 2 7/2.0 37.0
2.3 230 7/2.3 48.9
2.6 3 7/2.6 62.5
3.2 4.5 16 245 4 7/3.1 88.8
3.8 1,670 260 7/3.8 126.0
4.5 5.0 275 7/4.5 176.6
Ultra Strength Galvanized Steel Strands

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Diameter of Wire min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating min. Uniformity Construction Min. Breaking Loads
mm Mpa % Times g/m² Times   kN
2.0 1,960 2.0 20 215 2 7/2.0 38.8
2.1 4.0 230 2.5 7/2.1 42.8
2.2 7/2.2 46.9
2.3 7/2.3 51.3
2.4 7/2.4 55.9
2.5 7/2.5 60.6
2.6 16 7/2.6 65.6
2.7 7/2.7 70.7
2.8 3 7/2.8 76.0

Note: Specified number is based on JIS G3548, G3537 and Power Cable Spec. 2003-A.

Support Wire for Power and Telecommunication cable.

Galvanized Steel wire and Galvanized Steel strands.

Characteristics

This product is galvanized on the surface for the purpose of superior corrosion resistance.
With accumulated technology over decades, we are proud of our products with high level of surface cleanliness and straightness enabling the cable assembling easier for customers.
Other than standard specifications, it is our pleasure to satisfy customers with special requirement such as adding adhesive layer on the surface, making smaller sizes of wire or strand and so on, depending on various application.

Application

Our wires and strands are used as tension member inside and out side of optical fiber cable called "Drop Wire" for FTTH, where, needless to say, IT has been more multifaced day by day.

Mechanical Properties of Galvanized Steel Strands

Galvanized Steel wire

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Diameter min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating
mm N/mm² % Times g/m²
0.5 1,670 1.5 15 10
0.7 1,570 20 20
1.2 1420 2.0 110
Galvanized Steel Strands

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Diameter of Wire min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating Construction Min. Breaking Loads
mm N/mm² % Times g/m²   kN
1.00 1,230 2.0 18 110 7/1.00 6.19
1.20 7/1.20 8.90
1.40 130 7/1.40 12.2
1.60 7/1.60 15.9
1.80 3.0 16 160 7/1.80 20.1
2.00 7/2.00 24.8
2.30 200 7/2.30 32.8
2.60 7/2.60 42.0
2.90 230 7/2.90 52.2
3.20 4.0 14 7/3.20 63.7

Other specification or modification are available depending on application

Zinc-Aluminum Alloy Coated Steel Wire and Strand.

Characteristics

Our Zinc-Aluminum alloy coated product carries much more superiority over corrosion than galvanized products, traditionally well known, due to combined anti-corrosion effect by both sacrificial node and high corrosion resistance seen on aluminum.
Our products feature high level of surface cleanliness and straightness which makes cable processing easier based on long time technical development with know how accumulated for over decades. It's possible for us to respond to any other varied specification and requirement meeting to each application.

Application

Product being well protected against corrosion using zinc-aluminum alloy coating.

Mechanical Properties of Galvanized Steel Strands

Zinc-Aluminum Alloy Coated Steel Wire

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Diameter min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating
mm N/mm² % Times g/m²
1.2 1,420 1.0 18 110
2.3 1,230 3.0 16 250
2.6 1,230 3.0 250
Zinc-Aluminum Alloy Coated Steel Strand.

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Diameter of Wire min. Tensile Strength min. Elongation min. Torsion min. Amount of Coating Construction Min. Breaking Loads
mm N/mm² % Times g/m²   kN
1.40 1,230 2.0 18 250 7/1.40 11.5
1.80 3.0 16 250 7/1.80 20.1
2.00 7/2.00 24.8
2.30 7/2.30 32.8
2.60 7/2.60 42.0

Other specification or modification are available depending on application

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