Bare Conductor Acs Aluminium Clad Steel Strand, Wire Cable

• Customization: Available
• Type: Bare
• Conductor Type: Stranded
• Model NO.: ACS
• Application: Overhead
• Material Shape: Round Wire
• Certification: ISO9001
• Brand: Ees Cable
• Transport Package: Wooden/Irowood Drum
• Specification: AWG MCM MM2
• Trademark: EES CABLE
• Origin: China
• HS Code: 7312100000
• Production Capacity: 500000m/Month

Product Description

ACS (Aluminum-Clad Steel) - Application Standards & Construction

1. Overview

ACS (Aluminum-Clad Steel) is a bimetallic conductor composed of a high-strength steel core with an outer aluminum cladding, combining steel's mechanical strength with aluminum's conductivity and corrosion resistance. It is widely used in overhead ground wires (OPGW), grounding systems, and specialized electrical applications.

 

2. Application Standards

(1) International Standards (IEC/ASTM)

• IEC 61232 (Aluminium-clad steel wires for electrical purposes)

  • Primary standard covering ACS wire requirements, including mechanical and electrical properties.

• ASTM B416 (Standard Specification for Aluminum-Clad Steel Wire)

  • Specifies material composition, tensile strength, and conductivity.

(2) Power & Utility Standards

• IEEE Std 80 (Guide for Safety in AC Substation Grounding)

  • Recommends ACS for grounding grids in high-voltage substations.

• IEEE Std 1138 (Standard for Testing & Installation of OPGW)

  • Covers ACS use in optical ground wires (OPGW) for transmission lines.

(3) Telecommunications & National Codes

• ITU-T K.27 (Bonding and Grounding of Telecom Sites)

• NEC Article 250 (Grounding and Bonding Requirements)

 

3. Construction of ACS

(1) Core Material

• Base Metal: High-carbon steel (e.g., SAE 1070, 1080)

• Tensile Strength: 900-1500 MPa (depending on grade)

(2) Aluminum Cladding

• Thickness: 10-30% of total diameter

• Purity: ≥99.5% aluminum (EC grade preferred)

• Bonding Method: Metallurgical bonding (hot-dip or pressure-welded)

(3) Common ACS Types

Type	Al Clad %	Conductivity (%IACS)	Tensile Strength (MPa)	Key Applications
ACS 20%	20%	20%	1200-1400	OPGW, shield wires
ACS 30%	30%	30%	1000-1300	Grounding rods
ACS 40%	40%	40%	900-1100	High-corrosion environments

 

4. Key Applications

1. Overhead Ground Wires (OPGW & Shield Wires)

   • Lightning protection for transmission lines

   • Combines with optical fibers in OPGW designs

2. Grounding Systems

   • Substation grounding grids

   • Tower and pole grounding

3. Specialty Uses

   • Railway electrification (catenary systems)

   • Coastal/marine installations (salt-resistant)

 

5. Performance Characteristics

Property	ACS	Bare Aluminum	Galvanized Steel
Conductivity	20-40% IACS	61% IACS	8-12% IACS
Tensile Strength	900-1500 MPa	70-150 MPa	500-1200 MPa
Corrosion Resistance	Excellent (Al layer)	Good	Moderate
Cost	Medium	Low	Low

 

6. Manufacturing & Quality Control

• Cladding Process: Hot-dip extrusion or continuous welding

• Dimensional Tolerance: ±1-2% of nominal diameter

• Surface Finish: Smooth, oxide-free aluminum layer

 

7. Comparison with Alternatives

• vs. ACSR: ACS has better corrosion resistance but lower conductivity.

• vs. Copper-Clad Steel (CCS): ACS is lighter and cheaper but less conductive.

• vs. Pure Aluminum: ACS offers superior strength for tension applications.

 

8. Compliance & Certification

• IEC 61232 (International)

• ASTM B416 (North America)

• GB/T 17937 (China)
  
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