Product Description
Our factory's corrosion-resistant electrical wire uses steel-cored aluminum stranded wire as its basic structure, with an internal galvanized steel wire or aluminum-clad steel wire as the reinforcing core, and multiple strands of aluminum wire wound around it on the outside, combining high mechanical strength and good conductivity. Depending on the corrosion protection method, it is mainly divided into: anti-corrosion grease type, aluminum-clad steel core type, and alloy coating type.
Product Model
|
Model |
Anti-corrosion type |
Steel core structure |
Al/steel section ratio(mm²) |
Main anti-corrosion mechanisms |
|
JL/G1A |
Basic type (no special anti-corrosion measures) |
galvanized steel strand |
120/20,400/35… |
Zinc-coated base corrosion protection |
|
JL/G1AF |
Grease-based (light/medium/heavy corrosion protection) |
Galvanized steel core + anti-corrosion grease |
120/20,150/25,400/35… |
A steel core or interlayer coating of anti-corrosion grease forms a physical barrier. |
|
JL/LB20A |
Aluminum-clad steel profile |
Aluminum-clad steel wire core |
1250/70,1450/80… |
Aluminum-steel metallurgical bonding eliminates electrochemical corrosion. |
|
JL/G1X |
Alloy coating type |
Rare earth zinc-aluminum alloy coated steel core |
400/35,500/45 |
The corrosion resistance of the coating is 2 to 3 times that of ordinary zinc plating. |
|
LGJX-400/35 |
Rare earth reinforced |
Rare earth steel core |
400/35 |
Rare earth elements refine grains and improve coating density. |
Product Feature And Application
Typical Application Areas:
- Coastal areas and areas around saltwater lakes
- Industrial and mining areas, areas near chemical plants, and other areas with severe air pollution;
- Saline sandy soil areas and high-humidity environments
Core Advantages:
- High tensile strength, suitable for long-span installations;
- Strong corrosion resistance, reducing maintenance costs;
- Long service life, reducing replacement frequency and power outage risk.
Product Technical Parameters
Mechanical Performance Comparison
- Tensile Strength: Aluminum-clad steel type (JL/LB20A) > Alloy-plated type (JL/G1X) > Grease-coated type (JL/G1AF)
- Elastic Modulus: Aluminum-clad steel core conductors can reach over 180 GPa, superior to ordinary galvanized steel cores (approximately 165 GPa)
- Sagging Control: Due to its high strength and low coefficient of thermal expansion, aluminum-clad steel wire reduces sag by 1-2%, making it suitable for long-span installations.
Electrical Performance Comparison
- Current Carrying Capacity: Aluminum-clad steel core conductors have no risk of electrochemical corrosion, resulting in stable temperature rise during long-term operation and a 2-3% increase in current carrying capacity compared to ordinary conductors of the same specification.
- Power Loss: The anti-corrosion coating reduces surface oxidation and contact resistance, reducing power loss by 4-6%.
Corrosion Resistance Classification
- Light Corrosion Protection (Grease-coated steel core only): Suitable for installations 5-10 km from the coastline. Light salt spray zone (km away):
- Medium corrosion protection (steel core + inner aluminum wire with grease): Suitable for industrial emission areas and Class III pollution level areas.
- Heavy corrosion protection (full-layer grease or aluminum-clad steel): Suitable for highly corrosive areas <3 km from the sea and with an average annual humidity >80%.
Lifespan and Economy
- Ordinary galvanized steel core conductors have an average lifespan of approximately 15 years in coastal areas.
- With heavy corrosion protection measures, the lifespan can be extended to 25-30 years, and the total lifespan cost can be reduced by approximately 20%.
FAQ
How to Choose the Right Corrosion-Resistant Steel Core Conductor?
- First, the corrosive environment should be the primary consideration, combined with a comprehensive decision based on mechanical strength, conductivity, and maintenance costs.
- For mildly corrosive environments, medium-corrosion coated conductors are suitable. By coating the steel core and aluminum wire with anti-corrosion grease, a physical barrier is formed, effectively blocking moisture and contaminants, with a lifespan exceeding 20 years.
- In moderately corrosive areas, alloy-plated conductors are recommended. Their steel core uses a rare-earth alloy plating, offering 2-3 times the corrosion resistance of ordinary zinc plating and effectively resisting acidic gas corrosion.
- For severely corrosive or long-span applications, aluminum-clad steel core conductors should be prioritized. Their aluminum-steel metallurgical structure completely eliminates the risk of electrochemical corrosion, requires no maintenance throughout its lifespan, and offers the best overall cost.
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