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795 MCM DRAKE ACSR Conductor Cable
795 MCM DRAKE ACSR Conductor Cable

795 MCM DRAKE ACSR Conductor Cable

The ACSR CAA 795 MCM 26/7F DRAKE is a widely used, high-capacity overhead conductor designed for power transmission and distribution systems. It features a rugged construction of 26 hard-drawn 1350-H19 aluminium wires wrapped around 7 galvanized steel strands, forming a strong and conductive concentrically stranded cable. Built to ASTM B232 specifications, this conductor delivers excellent electrical performance, while its steel-reinforced core offers the mechanical strength needed for long-span installations. The steel strands are galvanized to Class A or B, providing reliable corrosion resistance in outdoor environments. With its proven design and high load-handling capabilities, the DRAKE configuration is commonly used across utility networks, particularly for high-voltage transmission lines where strength, conductivity, and longevity are critical.
Construction
Technical Specifications
Quality Control
Application

Construction

795 MCM DRAKE ACSR Conductor Cable Construction
795 MCM DRAKE ACSR Conductor Cable Construction

Standard

Product ASTM B232
Aluminum’s application as an electrical conductor material has progressed remarkably, mainly due to its superior electrical performance. Nevertheless, for the majority of long-span transmission lines, aluminium conductors need supplementary mechanical bracing, and galvanized steel wires are usually employed as the core in ACSR for this purpose.

Construction

ACSR comprises a concentrically stranded conductor with one or more layers of hard-drawn 1350-H19 aluminium wires over a galvanized steel wire core. The core may be single or stranded depending on size, and the steel wires are available with Class A or B galvanization for corrosion protection.
Engineered to meet the electrical and mechanical strength requirements of transmission or distribution lines, ACSR provides an optimal design by combining the right quantities of aluminium and galvanized steel wires.

Applications

This cable is commonly employed as bare cable for overhead transmission lines, while also serving as primary and secondary bare cable in distribution lines.

Conditions for Ampacity Calculation

Conductor temperature = 75 °C;
Room temperature = 25 °C

Technical Specifications

795 MCM DRAKE ACSR Conductor Cable
795 MCM DRAKE ACSR Conductor Cable
Construction characteristics
Type of cable Drake
Type of conductor Circular, stranded
Conductor material aluminum / Steel Core
Conductor flexibility Class A
Conductor shape Circular non compacted
Dimensional characteristics
Conductor cross-section 795 kcmil
Aluminium cross-section 402.56 mm²
Conductor cross-section 468 mm²
Number of aluminium wires 26
Diameter of aluminium wires 4.44 mm
Number of steel wires 7
Diameter of steel wires 3.45 mm
Diameter of steel core 10.35 mm
Conductor diameter 28.11 mm
Average geometric radius 0.01142 m
Aluminium content 1118 kg/km
Steel content 512.2 kg/km
Approximate weight 1629 kg/km
Nominal outer diameter 28.11 mm
Number of cores 1
Number of round wires -
Electrical characteristics
Max. DC resistance of the conductor at 20°C 0.072 Ohm/km
Max. electric resistance AC 60Hz 75°C 0.086 Ohm/km
Inductive reactance 0.3373 Ohm/km
Capacitive reactance 0.2035 MOhm.km
Ampacity 910.0 A
Mechanical characteristics
Rated breaking load (Class A) 14245 kgf
Rated breaking load (Class B) 13796 kgf
Hardness type 1350-H19
Usage characteristics
Length 1596 m
Reel net weight 2600 kg
Packaging Reel 170/80

Quality Control

795 MCM DRAKE ACSR Conductor Cable
795 MCM DRAKE 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.

795 MCM DRAKE 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.

795 MCM DRAKE 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

This cable is commonly employed as bare cable for overhead transmission lines, while also serving as primary and secondary bare cable in distribution lines.

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)
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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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