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4 AWG SWAN ACSR Conductor Cable
4 AWG SWAN ACSR Conductor Cable

4 AWG SWAN ACSR Conductor Cable

4 AWG SWAN ACSR cable is an aluminum conductor steel-reinforced cable manufactured according to ABNT NBR 7270/88 standards, combining high conductivity with enhanced tensile strength. It is commonly used in overhead power transmission and distribution lines, especially where increased mechanical support is needed for longer spans or adverse weather conditions.
Voltage Rating Typically up to 25 kV
Temperature Rating Operating: -10°C to +75°C
Short-circuit (5s): up to 150°C
Construction
Technical Specifications
Quality Control
Application

Construction

4 AWG SWAN ACSR Conductor Cable Construction
4 AWG SWAN ACSR Conductor Cable Construction

Conductor

Stranded aluminum (1350-H19) outer layer

Core

Galvanized steel wire (single or stranded) for added strength

Surface

Bare aluminum with corrosion-resistant zinc-coated steel core

Conditions for Ampacity Calculation

Conductor temperature: 75°C
Ambient temperature: 25°C

Manufacturer Standard

ASTM B232, IEC 61089

Wind speed

1 m/s

Solar radiation

Full sun

Application

4 AWG SWAN ACSR cables are widely used in overhead power transmission and distribution lines, particularly in rural, agricultural, and utility networks where moderate strength, good conductivity, and cost-effectiveness are needed for medium-span installations.

Technical Specifications

4 AWG SWAN ACSR Conductor Cable
4 AWG SWAN ACSR Conductor Cable
Construction characteristics
Type of cable Swan
Type of conductor Circular, stranded
Conductor material aluminium/Steel Core
Conductor flexibility Class A
Conductor shape Circular non compacted
Dimensional characteristics
Conductor cross-section (AWG/KCMIL) 4
Aluminium cross-section 21.18 mm²
Number of aluminium wires 6
Diameter of steel wires 2.12 mm
Number of steel wires 1
Diameter of steel wires 2.12 mm
Conductor diameter 6.36 mm
Average geometric radius 0.00244 m
Aluminium content 68.4 kg/km
Steel content 27.6 kg/km
Approximate weight 85.86 kg/km
Conductor cross-section 12.03 mm²
Maximum outer diameter - mm
Normal outer diameter 6.36 mm
Number of cores 1
Number of round wires -
Electrical characteristics
Max. DC resistance of the conductor at 20°C 1.3846 Ohm/km
Max electric resistance AC 60 Hz 75°C 1.712 Ohm/km
Inductive reactance 0.4827 Ohm/km
Capacitive reactance 0.2746 MOhm/km
Amperage 140.0 A
Rated Voltage Uo/U (Um) -
Mechanical characteristics
Rated breaking load (Class A) 846 kgf
Rated breaking load (Class B) 823 kgf
Hardness type 1350-H19
Usage characteristics
Length 3570 m
Reel net weight 306 kg
Packaging Reel 80/45
Fire resistant -
Flame retardant -

Quality Control

4 AWG SWAN ACSR Conductor Cable
4 AWG SWAN ACSR Conductor Cable  Raw Material Test

Raw Material Test

NPC has always chosen raw material suppliers who have a good reputation, possess stable supply capabilities and have passed international quality system certifications (such as ISO 9001). And establish a long-term cooperative relationship with it, forming a stable and reliable raw material supply chain.
We will ensure that all raw materials are subject to strict inspection procedures upon entry to the factory, and can only be stored in the warehouse after they have been confirmed to meet the standards.

4 AWG SWAN ACSR Conductor Cable Process inspection

Process inspection

NPC has strict quality control procedures for each process in the cable production process.
Process documents: Develop detailed process flow and operation instructions to clarify the operating specifications and quality standards of each process.
Equipment calibration: Regularly calibrate key equipment such as wire drawing machines, stranding machines, extruders, and diameter gauges to ensure that the accuracy meets the requirements.
First piece confirmation: Before each batch of production, the first piece is trial-produced to confirm that the process parameters, product dimensions, electrical performance, etc. meet the standards before mass production can be carried out.

4 AWG SWAN ACSR Conductor Cable Finished Product

Finished Product

Inspectors conduct ex-factory inspections on cables according to relevant standards and corresponding product inspection specifications to ensure that each ex-factory product complies with the process regulations.

Application

4 AWG SWAN ACSR cables are widely used in overhead power transmission and distribution lines, particularly in rural, agricultural, and utility networks where moderate strength, good conductivity, and cost-effectiveness are needed for medium-span installations.

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

Product Packaging

Wires and Cables packaging (1)
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (2)
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Wires and Cables packaging (6)
Wires and Cables packaging (7)
Wires and Cables packaging (7)
Wires and Cables packaging (8)
Wires and Cables packaging (8)

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FAQ From Customers

What are the advantages of power cables and overhead lines?
(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people;
(2) The maintenance workload is small and frequent inspections are not required;
(3) No need to erect towers;
(4) Help improve power factor.
Which aspects should be considered when choosing the cross section of a power cable?
(1) The long-term allowable working current of the cable;
(2) Thermal stability once short circuited;
(3) The voltage drop on the line cannot exceed the allowable working range.
What are the measures for cable fire prevention?
(1) Use flame-retardant cables;
(2) Use fireproof cable tray;
(3) Use fireproof paint;
(4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.;
(5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
What should be paid attention to during the transportation and handling of cables?
(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat.
(2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
What inspections should be carried out for the acceptance of cable lines?
(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear;
(2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements;
(3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements;
(4) Good grounding;
(5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted;
(6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.

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