Bare Stranded Copper Conductor

Details

Overview

Stranded Bared Copper Conductor

Bare Copper conductors are primarily used for grounding purposes as specified in the National Electrical Code.Soft-drawn solid or stranded conductors, for use as grounding connections in circuits, and grounding for machinery or equipment. Hard-drawn conductors for overhead transmission and distribution lines, as grounding connections in circuits, and grounding for machinery or equipment.

Construction

Bare Stranded Copper Conductor wire

Conductor Sections

Conductor: Hard-drawn stranded Copper Wire

Standards

Basic design to EN13602/BS 7884/ASTM B8/JIS C 3105:1994/AS1746 standards.

Technical Data

EN 60228(*if other standards are required, please contact with us)
Nominal Cross Sectional Area	No. of Wires	Diameter of Wires	Diameter of Conductor	Nominal Weight	Maximum DC Resistance at 20℃
mm²		mm	mm	kg/km	Ω/km
16	7	1.7	5.1	137	1.15
25	7	2.13	6.9	215	0.727
35	7	2.52	7.56	300	0.524
50	10	2.52	8.9	410	0.387
70	14	2.52	10.7	595	0.268
95	19	2.52	12.6	820	0.193
120	24	2.52	14.25	1040	0.153
150	30	2.52	15.75	1280	0.124
185	37	2.52	17.64	1600	0.0991
240	48	2.52	20.3	2100	0.0754
300	61	2.52	22.68	2700	0.0601

Bare Stranded Copper Conductor | High-Conductivity Grounding & Overhead Line Solutions

Bare stranded copper conductors are engineered from multiple twisted electrolytic copper wires, offering unmatched flexibility and conductivity for demanding electrical applications. Ideal for grounding, overhead power distribution, and industrial systems, these conductors meet ASTM B8, IEC 60228, and NEC 250 standards, ensuring safety and performance.

Key Features & Benefits

Material: 99.9% pure electrolytic copper (C11000/C10200), annealed for superior ductility.

Conductor Types:

Hard-Drawn: High tensile strength (350-500 MPa) for overhead power lines.

Soft-Drawn: Flexible design (200-300 MPa) for grounding and equipment earthing.

Sizes: 6 AWG to 1000 kcmil, customizable stranding (Class B, C, or custom patterns).

Low Resistivity: ≤0.01724 Ω·mm²/m at 20°C for efficient current transmission.

Corrosion Resistance: Bare copper surface ensures long-term durability in harsh environments.

Applications

Electrical Grounding Systems: Substation grounding grids, transformer earthing, and equipment bonding (NEC 250 compliant).

Overhead Power Transmission: High-voltage transmission lines, railway catenary systems, and renewable energy projects.

Industrial Use: Petrochemical plants, data centers, mining machinery, and solar/wind farm interconnections.

Why Choose Our Bare Stranded Copper Conductors?

Certified Quality: ISO 9001 manufacturing with RoHS compliance and third-party test reports (conductivity, elongation).

Custom Solutions: CAD-supported prototyping for non-standard sizes or stranding configurations.

Global Logistics: FOB/CIF terms, 15-30 day lead time, and secure packaging (wooden reels/drums).

Competitive Pricing: Transparent quotes based on real-time LME copper prices and volume discounts.