954 MCM CARDINAL ACSR Conductor Cable
The ACSR CAA 954 MCM 54/7F CARDINAL is a high-capacity, heavy-duty Aluminium Conductor Steel Reinforced (ACSR) cable engineered for the reliable transmission of electrical power over long-span overhead lines. It features 54 hard-drawn 1350-H19 aluminium strands concentrically laid around 7 galvanized steel strands, offering an optimized balance between excellent electrical conductivity and mechanical strength.
Manufactured to meet the requirements of ASTM B232, the CARDINAL configuration is a trusted industry standard, widely adopted in high-voltage transmission systems. The galvanized steel core, available in Class A or B coatings, provides superior corrosion resistance and structural support, making this conductor ideal for outdoor environments exposed to wind, ice, and mechanical loading.
The 54/7F strand design ensures increased current-carrying capacity and lower resistance, making it suitable for use in critical infrastructure and utility-grade transmission networks. Its cost-effective design makes it popular for utility upgrades and rural electrification, ensuring reliable power delivery with minimal maintenance in overhead transmission and distribution systems worldwide.
Construction
Technical Specifications
Quality Control
Application
Construction
954 MCM CARDINAL ACSR Conductor Cable Construction
Standard
Product ASTM B232
Aluminium has advanced significantly as an electrical conductor material, primarily owing to its favorable electrical properties. However, for most long-span transmission lines, aluminium conductors require additional mechanical support—galvanized steel wires are commonly used as the core in ACSR conductors to meet this need.
Aluminium has advanced significantly as an electrical conductor material, primarily owing to its favorable electrical properties. However, for most long-span transmission lines, aluminium conductors require additional mechanical support—galvanized steel wires are commonly used as the core in ACSR conductors to meet this need.
Construction
ACSR features a concentrically stranded conductor construction, with one or more layers of hard-drawn 1350-H19 aluminium wires stranded over a galvanized steel wire core. Depending on size, the core is either single-wire or stranded, and the steel wires come with Class A or B galvanization for anti-corrosion protection.
ACSR provides a tailored design that aligns with the electrical and mechanical strength requirements of transmission or distribution lines, achieved by combining aluminium and galvanized steel wires in appropriate quantities.
ACSR provides a tailored design that aligns with the electrical and mechanical strength requirements of transmission or distribution lines, achieved by combining aluminium and galvanized steel wires in appropriate quantities.
Applications
Extensively applied as bare cable for overhead transmission lines, this product further acts as primary and secondary bare cable in electrical distribution lines.
Conditions for Ampacity Calculation
Conductor temperature = 75 °C;
Room temperature = 25 °C
Room temperature = 25 °C
Technical Specifications
954 MCM CARDINAL ACSR Conductor Cable
954 MCM CARDINAL ACSR Conductor Cable
| Construction characteristics | |
| Type of cable | Cardinal |
| Type of conductor | Circular, stranded |
| Conductor material | aluminum / Steel Core |
| Conductor flexibility | Class A |
| Conductor shape | Circular non compacted |
| Dimensional characteristics | |
| Conductor cross-section | 954 kcmil |
| Aluminium cross-section | 484.53 mm² |
| Conductor cross-section | 547.34 mm² |
| Number of aluminium wires | 54 |
| Diameter of aluminium wires | 3.38 mm |
| Number of steel wires | 7 |
| Diameter of steel wires | 3.38 mm |
| Diameter of steel core | 10.14 mm |
| Conductor diameter | 30.42 mm |
| Average geometric radius | 0.0123 m |
| Aluminium content | 1346 kg/km |
| Steel content | 490.6 kg/km |
| Approximate weight | 1837 kg/km |
| Nominal outer diameter | 30.42 mm |
| Number of cores | 1 |
| Number of round wires | 51 |
| Electrical characteristics | |
| Max. DC resistance of the conductor at 20°C | 0.0598 Ohm/km |
| Max. electric resistance AC 60Hz 75°C | 0.073 Ohm/km |
| Inductive reactance | 0.3317 Ohm/km |
| Capacitive reactance | 0.1999 MOhm.km |
| Ampacity | 990.0 A |
| Mechanical characteristics | |
| Rated breaking load (Class A) | 15357 kgf |
| Rated breaking load (Class B) | 14928 kgf |
| Hardness type | 1350-H19 |
| Usage characteristics | |
| Length | 2080 m |
| Reel net weight | 3800 kg |
| Packaging | Reel 210/100 |
Quality Control
954 MCM CARDINAL ACSR Conductor Cable
Raw Material Test
Raw material testing for the 954 MCM Cardinal ACSR Conductor Cable ensures compliance with ASTM B230 and B232 standards. Aluminum wires (1350-H19) are inspected for purity (>99.5%), conductivity (>61.5% IACS), and elongation (>1.5%) using spectrometry and tensile machines. Steel core wires (Class A galvanized) undergo zinc coating mass (min 259g/m²), tensile strength (1300-1450 MPa), and ductility checks via wrap and torsion tests. Samples are subjected to corrosion simulation in salt spray chambers and impurity analysis via microscopy. The structured process: incoming batch verification, random sampling, physical/mechanical testing (diameter, weight per length), chemical composition confirmation, accelerated aging trials at 150°C, and material release decision.
Process inspection
During manufacturing of the 954 MCM Cardinal ACSR Conductor Cable, process inspection adheres to ASTM B232. Aluminum drawing ensures wire diameter tolerance (±0.025mm) and surface smoothness with micrometers. Steel core galvanizing controls zinc thickness (80-100µm) and adhesion via stripping tests. Stranding line monitors 54/7 lay ratio, compactness, and tension balance using optical sensors. Real-time checks for ovality and strand continuity occur at multiple points. Final lubrication and spooling verify coil integrity. Key steps: pre-stranding material dryness confirmation, parameter logging (speed, tension), intermediate sampling for microscopy, defect rejection (breaks/cracks), and post-stranding dimensional verification. This multi-point oversight ensures the 954 MCM Cardinal ACSR Conductor Cable achieves uniform stranding, optimal steel-aluminum bonding.
Finished Product
The finished 954 MCM Cardinal ACSR Conductor Cable undergoes comprehensive testing to ASTM B232 standards. Routine tests include overall diameter (1.165 inches), weight per length (1,279 lbs/1000ft), and DC resistance (0.0181 Ω/1000ft at 20°C). Mechanical tests cover ultimate tensile strength (35,600 lbs) and elongation using universal machines. Electrical withstand and partial discharge checks confirm integrity. The process steps: reel sampling, preparation with grips, gradual load application to break point, timed hold for creep, post-test fracture analysis, and documentation. Additional verifications include zinc coating uniformity, lay length (300-400mm), and weather simulation (UV/ice loading). Only cables passing all criteria are approved, confirming the 954 MCM Cardinal ACSR Conductor Cable's high strength-to-weight ratio, low sag, corrosion resistance, and reliable performance for overhead transmission lines.
Application
954 MCM Cardinal ACSR Conductor Cable is ideal for overhead transmission and distribution lines in utility networks, rural electrification, and industrial power grids. Commonly used for spans up to 300m in moderate wind/ice areas, connecting substations to transformers for efficient 69-138kV service.
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 (2)
Wires and Cables packaging (3)
Wires and Cables packaging (4)
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Wires and Cables packaging (7)
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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.
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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.
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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.
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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.
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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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