Aluminum Clad Steel (ACS) Wire
FISSOT® ACS Wire (Aluminum Clad Steel Wire) is a high-performance bimetallic conductor that permanently bonds a uniform layer of high-purity aluminum around a high-strength steel core. Utilizing advanced metallurgical cladding technology from GENERAL CLAD®, our ACS wire perfectly balances the excellent electrical conductivity and corrosion resistance of aluminum with the rugged mechanical tension of steel. It is the premier choice for OPGW (Optical Ground Wires), overhead transmission line cores (ACSR/AW), and railway catenary systems.
🌟 Key Benefits
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🔗 Zero Galvanic Corrosion: Unlike traditional galvanized steel wire, the continuous metallurgical aluminum cladding eliminates the internal electrochemical interface layer, completely preventing core corrosion in coastal, industrial, and high-humidity environments.
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💪 High Strength-to-Weight Ratio: Inherits the structural integrity of a high-carbon steel core while the outer aluminum layer significantly minimizes dead weight, reducing sag in large-span overhead lines.
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⚡ Superior Fault Capacity: Provides excellent electrical conductivity (ranging from 14% to 40% IACS), acting as a highly efficient path for fault and lightning currents to safeguard power grid stability.
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🌡️ Excellent Thermal Longevity: Engineered to operate continuously at high temperatures up to 150°C without bond degradation or mechanical failure.
🚀 Top Applications
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🛰️ OPGW (Optical Ground Wire): Used as the core structural tension wires and shielding layers in OPGW cables, providing mechanical reinforcement and excellent lightning discharge diversion.
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⚡ ACSR/AW Conductor Cores: Replaces standard galvanized steel cores in Aluminum Conductors Steel Reinforced (ACSR) to lower line resistance and decrease power grid transmission loss.
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🚊 High-Speed Rail Catenary: Serves as catenary messenger wires and auxiliary earth wires under extreme mechanical tension and high-vibration railway environments.
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| Grade | Diameter Range (mm) | Min. Tensile Strength (MPa) | Min. Stress at 1% Elongation (MPa) | Min. Elongation at Fraction (%) | Min. Elongation after Fraction (%) | Max. Resistance at 20°C (nΩ·m) |
|---|---|---|---|---|---|---|
| A | 2.25 < d ≤ 3.00 | 1590 | 1410 | 1.5 | 1.0 | 123.15 |
| 3.00 < d ≤ 3.50 | 1550 | 1380 | ||||
| 3.50 < d ≤ 4.75 | 1520 | 1340 | ||||
| 4.75 < d ≤ 5.50 | 1500 | 1270 | ||||
| B | 1.75 < d ≤ 2.25 | 1825 | 1550 | |||
| 2.25 < d ≤ 3.00 | 1790 | 1500 | ||||
| 3.00 < d ≤ 3.50 | 1760 | 1470 | ||||
| 3.50 < d ≤ 4.75 | 1725 | 1430 | ||||
| C | 1.24 < d ≤ 2.25 | 1965 | 1580 | |||
| 2.25 < d ≤ 3.00 | 1900 | 1550 | ||||
| 3.00 < d ≤ 3.50 | 1860 | 1515 | ||||
| 3.50 < d ≤ 4.75 | 1825 | 1480 | ||||
| D | 2.25 < d ≤ 3.00 | 1590 | 1410 | 2.5 | 2.0 | |
| 3.00 < d ≤ 3.50 | 1550 | 1380 | ||||
| 3.50 < d ≤ 4.75 | 1520 | 1340 | ||||
| 4.75 < d ≤ 5.50 | 1500 | 1270 |
| Grade | Diameter Range (mm) | Min. Tensile Strength (MPa) | Min. Stress at 1% Elongation (MPa) | Min. Elongation at Fraction (%) | Min. Elongation after Fraction (%) | Max. Resistance at 20°C (nΩ·m) |
|---|---|---|---|---|---|---|
| A | 1.24 < d ≤ 3.25 | 1340 | 1200 | 1.5 | 1.0 | 84.80 |
| 3.25 < d ≤ 3.45 | 1310 | 1180 | ||||
| 3.45 < d ≤ 3.65 | 1270 | 1140 | ||||
| 3.65 < d ≤ 3.95 | 1250 | 1100 | ||||
| 3.95 < d ≤ 4.10 | 1210 | 1100 | ||||
| 4.10 < d ≤ 4.40 | 1180 | 1070 | ||||
| 4.40 < d ≤ 4.60 | 1140 | 1030 | ||||
| 4.60 < d ≤ 4.75 | 1100 | 1000 | ||||
| 4.75 < d ≤ 5.50 | 1070 | 1000 | ||||
| B | 1.28 < d ≤ 2.28 | 1620 | 1390 | |||
| 2.28 < d ≤ 3.04 | 1580 | 1360 | ||||
| 3.04 < d ≤ 3.55 | 1545 | 1330 | ||||
| 3.55 < d ≤ 4.82 | 1515 | 1300 | ||||
| C | 1.24 < d ≤ 3.25 | 1340 | 1200 | 2.5 | 2.0 | |
| 3.25 < d ≤ 3.45 | 1310 | 1180 | ||||
| 3.45 < d ≤ 3.65 | 1270 | 1140 | ||||
| 3.65 < d ≤ 3.95 | 1250 | 1100 | ||||
| 3.95 < d ≤ 4.10 | 1210 | 1100 | ||||
| 4.10 < d ≤ 4.40 | 1180 | 1070 | ||||
| 4.40 < d ≤ 4.60 | 1140 | 1030 | ||||
| 4.60 < d ≤ 4.75 | 1100 | 1000 | ||||
| 4.75 < d ≤ 5.50 | 1070 | 1000 |
| Grade | Diameter Range (mm) | Min. Tensile Strength (MPa) | Min. Stress at 1% Elongation (MPa) | Min. Elongation at Fraction (%) | Min. Elongation after Fraction (%) | Max. Resistance at 20°C (nΩ·m) |
|---|---|---|---|---|---|---|
| Standard | 2.50 < d ≤ 5.00 | 1080 | 800 | 1.5 | 1.0 | 63.86 |
| Grade | Diameter Range (mm) | Min. Tensile Strength (MPa) | Min. Stress at 1% Elongation (MPa) | Min. Elongation at Fraction (%) | Min. Elongation after Fraction (%) | Max. Resistance at 20°C (nΩ·m) |
|---|---|---|---|---|---|---|
| Standard | 2.50 < d ≤ 5.00 | 680 | 500 | 1.5 | 1.0 | 43.10 |
FAQs About Aluminum-Clad Steel Wire
What are the primary structural advantages of Aluminum Clad Steel (ACS) wire over galvanized steel wire in ACSR cores?
How does ACS wire perform during electrical short-circuit and lightning strike events?
Can FISSOT® customize specific conductivity and mechanical combinations for specialized grid spans?
Which international standards does FISSOT® ACS wire comply with?
How does GENERAL CLAD® technology guarantee that the aluminum and steel layers do not separate during installation tension?
What is the typical operating temperature lifecycle for ACS wire inside power grids?
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