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| Type: | Bare |
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| Conductor Type: | Stranded |
| Application: | Overhead |
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1. Applications
Contact wire is an electric conductor of an overhead contact line with which the current collector makes contact and is characterized by two clamping grooves. Copper and copper alloy grooved contact wires can be used in railway applications, fixed installations and electric traction.
2.Description
The drawing stock or intermediate rod stock is a copper or copper silver as defined in standard EN 1977 or a copper cadmium, copper magnesium or copper tin alloy. Note: 1) To identify the different copper(alloys) used as contact wire, identification grooves are used. 2)Whatever cross section of the wire is used, the dimensions of the clamping grooves shall be in accordance with standard.
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Parameter Category
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Parameter Name
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Technical Details
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Buyer Selection Guidelines
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Basic Information
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Product Model (Alphabetical Only)
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CCG-CA-G2-HW-HSR; CCG-CU-G1-HL-SUB; CCG-CT-G3-CR-CRL; CCG-CM-G4-HW-LR; CCG-CA-G2-HC-TR
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Model Interpretation: "CCG"=Copper/Copper Alloy Grooved Contact Wire; "CA"=Copper-Silver Alloy; "CU"=Pure Copper; "CT"=Copper-Tin Alloy; "CM"=Copper-Magnesium Alloy; "G1/G2/G3/G4"=Groove Type (Single/Double/Triple/Special); "HW"=High Wear-Resistant; "HL"=Low Loss; "HC"=High Conductivity; "CR"=Corrosion-Resistant; "HSR"=High-Speed Rail; "SUB"=Subway; "LR"=Light Rail; "TR"=Tram; "CRL"=Coastal Railway. Select based on traffic speed, load, environment and conductivity requirements.
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Application Scenario
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High-Speed Railway (HSR, 200-350km/h); Urban Subway (SUB, 60-120km/h); Light Rail (LR, 80-140km/h); Tram (TR, 40-80km/h); Coastal Railway (CRL); Heavy-Load Freight Railway
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HSR: High-wear, high-conductivity models (CA/G2/HW); SUB: Low-loss, stable-contact models (CU/G1/HL); CRL: Corrosion-resistant alloy models (CT/G3/CR); Heavy-Load Railway: High-strength, anti-fatigue models (CM/G4/HW).
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Operating Environment
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Temperature Range: -40ºC to 120ºC; Humidity: ≤98%; Adapt to High-Speed Vibration, Coastal Salt-Spray, Alpine Low-Temperature, Urban Humid and Industrial Dust Environments
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Alpine Areas: Low-temperature resistant alloy (CA/CT) to avoid brittle fracture; Coastal Areas: CR models with anti-corrosion coating; Industrial Zones: Dust-resistant groove design (G2/G3) to prevent contact failure.
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Rated Current
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150A-800A (Depends on Cross-Section and Material); Suitable for DC 750V/1500V and AC 25kV Power Systems
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DC 750V/1500V (Subway/Tram): Small-to-medium cross-section (85-120mm²); AC 25kV (HSR/Light Rail): Medium-to-large cross-section (120-150mm²); Heavy-Load Railway: Large cross-section (150-185mm²) for high current carrying.
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Material & Conductivity Parameters
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Material Type & Code
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CU (Pure Copper, Cu-ETP): Purity ≥99.99%; CA (Copper-Silver Alloy, CuAg0.1): Ag Content 0.08-0.12%; CT (Copper-Tin Alloy, CuSn0.3): Sn Content 0.25-0.35%; CM (Copper-Magnesium Alloy, CuMg0.5): Mg Content 0.45-0.55%
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CU: High conductivity (economical for subway/tram); CA: Balanced conductivity & wear resistance (HSR first choice); CT: Corrosion & fatigue resistance (coastal railway); CM: High strength & anti-wear (heavy-load railway).
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Electrical Conductivity
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CU: ≥98% IACS; CA: ≥95% IACS; CT: ≥85% IACS; CM: ≥80% IACS
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High-speed/long-distance lines (HSR): ≥95% IACS (CA) to reduce power loss; Urban short-distance lines (subway/tram): ≥98% IACS (CU) for energy efficiency; Corrosion-prone areas (CRL): ≥85% IACS (CT) acceptable for anti-corrosion priority.
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Resistivity (20ºC)
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CU: ≤0.017241 Ω·mm²/m; CA: ≤0.0179 Ω·mm²/m; CT: ≤0.0203 Ω·mm²/m; CM: ≤0.0215 Ω·mm²/m
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Lower resistivity = less heat generation. For high-speed continuous operation (HSR), choose CU/CA with low resistivity to avoid overheating; For short-term operation (tram), CT/CM is acceptable.
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Thermal Stability
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Continuous Operating Temperature: ≤100ºC; Short-Term Overload Temperature: ≤120ºC (30min); No Performance Degradation After Thermal Cycling (-40ºC~120ºC)
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Alpine areas: CU/CA with good low-temperature ductility; High-temperature areas (desert railway): All materials meet requirements (≤100ºC continuous operation); Overload-prone lines (peak passenger flow): CA/CM with stable thermal performance.
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Anti-Corrosion Performance
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CT/CM: Pass 1000h Salt Spray Test (No Rust); CU/CA: Optional Anti-Corrosion Coating (Epoxy/PVC) for Coastal Use; All Materials: Oxide Film Protection (Natural Anti-Corrosion)
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Coastal/industrial corrosion areas: CT/CM (no coating needed) or CU/CA with epoxy coating; Inland dry areas: CU/CA (natural oxide film sufficient) for cost savings.
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Groove Structure & Dimension Parameters
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Groove Type & Code
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G1 (Single Groove): 1 Symmetrical Groove on Top; G2 (Double Groove): 2 Symmetrical Grooves on Top; G3 (Triple Groove): 1 Top + 2 Side Grooves; G4 (Special Groove): Customized for Specific Pantograph Contact
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G1: Simple structure (subway/tram, low-speed contact); G2: Stable contact (HSR, high-speed vibration resistance); G3: Dust-proof + stable contact (industrial/coastal railway); G4: Customized for special pantograph (heavy-load freight railway).
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Nominal Cross-Section Range
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85mm² (S85), 100mm² (S100), 120mm² (S120), 150mm² (S150), 185mm² (S185)
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Tram: 85-100mm² (light load); Subway/Light Rail: 100-120mm² (medium load); HSR: 120-150mm² (high-speed load); Heavy-Load Railway: 150-185mm² (heavy freight load).
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Key Dimensions (Typical for 120mm²)
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Total Height: 16-18mm; Bottom Width: 65-70mm; Groove Depth: 2-3mm; Groove Width: 8-10mm; Tolerance: ±0.1mm
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Match with pantograph contact strip size: HSR pantograph (wider contact): 120mm² (G2, 65-70mm bottom width); Subway pantograph (narrow contact): 100mm² (G1, 60-65mm bottom width); Confirm dimension compatibility with existing contact hardware.
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Length per Roll
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Standard: 1000m/Roll; Customizable: 500m/1500m/Roll; Weight per Roll: 85mm²≈765kg, 120mm²≈1080kg, 150mm²≈1350kg
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Long-distance HSR construction: 1500m/roll (reduce joint number, improve contact stability); Urban subway construction: 500-1000m/roll (flexible for tunnel installation); Consider transportation capacity when choosing roll weight.
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Mechanical Performance Parameters
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Tensile Strength
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CU: ≥220 MPa; CA: ≥280 MPa; CT: ≥320 MPa; CM: ≥350 MPa
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High-speed railway (HSR): ≥280 MPa (CA) to withstand pantograph vibration; Heavy-load railway: ≥350 MPa (CM) to bear freight load; Subway/tram: ≥220 MPa (CU) sufficient for light load.
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Elongation at Break
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CU: ≥15%; CA: ≥12%; CT: ≥10%; CM: ≥8%
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Alpine low-temperature areas: ≥12% (CU/CA) to avoid brittle fracture during installation; High-vibration lines (HSR): ≥10% (CA/CT) to resist fatigue; Urban lines with frequent bending (subway): ≥15% (CU) for installation flexibility.
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Wear Resistance
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CA/CM: Wear Rate ≤0.15 mg/km (HSR Test Standard); CT: ≤0.20 mg/km; CU: ≤0.30 mg/km
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High-speed lines (350km/h): CA/CM (wear rate ≤0.15 mg/km) for long service life; Medium-speed lines (120-200km/h): CT (≤0.20 mg/km); Low-speed lines (≤80km/h): CU (≤0.30 mg/km) economical.
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Fatigue Resistance
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≥10 Fatigue Cycles (15-25Hz Vibration, Stress Amplitude 50MPa) Without Fracture
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High-speed lines with frequent pantograph contact (HSR): CA/CM with excellent fatigue resistance; Urban lines with stop-start frequent (subway): CU/CA to withstand repeated contact impact; Coastal lines: CT to resist corrosion-fatigue synergy.
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Durability & Quality Parameters
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Service Life
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CU: 8-12 Years (Subway/Tram); CA: 15-20 Years (HSR); CT: 12-18 Years (Coastal Railway); CM: 18-25 Years (Heavy-Load Railway)
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HSR (long maintenance cycle): CA (15-20 years) to reduce replacement frequency; Coastal railway (corrosion-prone): CT (12-18 years) vs CU (5-8 years) extended service life; Heavy-load railway: CM (18-25 years) for cost-effectiveness.
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Surface Quality
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Surface Roughness Ra ≤0.8 μm; No Scratches, Oxide Spots or Blemishes; Groove Edge Smooth (No Burrs)
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High-speed lines: Ra ≤0.8 μm (smooth surface reduces pantograph wear); All lines: No burrs/grooves to avoid pantograph damage and contact sparking.
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Quality Certification
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ISO 9001 Quality Management System; EN 50149/GB/T 12971 Product Certification; SGS/BV Third-Party Inspection Report Available
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International projects (HSR export): EN 50149 + BV inspection; Domestic projects: GB/T 12971; High-demand customers: Custom third-party inspection (SGS) to ensure quality compliance.
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HENAN UME CABLE CO., LTD has a strict quality control policy in every step from the order to After-sales service!
Production:
Q1: Are you a manufacturer?
Yes, we are the manufacturer.
Q2: What are your main products?
Our products range as follows:
1. Electrical wire/PVC Building Wires.
2. PVC/XLPE insulated Power Cables up to 110kv.
3. Overhead Aerial Bundle Cable/ABC Cables.
4. Bare Conductors, like AAC, AAAC, ACSR, ACAR, ASCR/AW, and so on.
5. Steel wire/strand-like EHS, GSW and ACS(Aluminum Clad Steel), CCS(Copper Clad Steel).
6. Rubber Cables, Mining Cables, Welding Cable, and Control Cables.
7. Concentric Cables with Copper/Aluminum/Aluminum Alloy 8000s' Conductor.
Q3: Do you provide samples? Is it free or extra?
Yes, we could offer the samples for free
Q4: Is the quality of your products guaranteed?
We have passed ISO9001, ISO14001, ISO45001, and all our products have CE certificates.
Q5: Which markets do you involve mainly in?
Our products have been exported mainly to Africa, the Middle East, Southeast Asia, South America, Central America, North America, Europe, Australia, etc.
Q6: What is your payment term?
T/T or L/C
Q7: What about the delivery time?
Generally, it is 3-7days if the goods are in stock. Or it is 7-30days if the goods are not in stock, it is according to quantity.
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