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Are you researching TCVN 6483 for your power transmission line project? This standard provides detailed regulations for round aluminum wire bare conductors stranded in concentric layers. It is widely applied in overhead power transmission projects in Vietnam. This standard is equivalent to the international standard IEC 61089.
- General information and scope of application of the standard
- Technical specification lookup table for ACSR (Aluminum Conductor Steel Reinforced) cables
- Comparison with related standards (ASTM B232)
Mastering the requirements of technical standards is essential in electrical system design and construction work. Let's join Ngoc Lan Cable to explore in detail each necessary aspect of this standard.
1. Introduction to TCVN 6483
TCVN 6483 was issued in 1999 and provides detailed regulations on the stranded structure and electro-mechanical characteristics of bare conductors manufactured from metallic wires such as hard drawn aluminum (designated A1), aluminum alloy (A2, A3), and various types of zinc-coated steel wires with different strength grades (S1A, S2A, S3A). This standard helps standardize the manufacturing process for stranded bare aluminum conductors, which are used as conductors for overhead power transmission lines.
2. Main information table
The demand for technical information lookup in design work is continuously increasing. This information table summarizes the key points of the standard, enabling engineers to effectively grasp the application context and legal validity.
| Full name: | TCVN 6483 – Standard specifications for round aluminum wire stranded in concentric layers for overhead power transmission lines |
| Equivalent international standard | IEC 61089 |
| Scope of application: | Aluminum alloys, zinc-coated steel, hard drawn aluminum |
| Year of issue: | 1999 |
| Current status: | Fully effective |
| Issuing authority: | Ministry of Science & Technology of Vietnam |
3. Technical specification lookup table
The technical specifications in TCVN 6483 are designed to ensure transmission performance and high reliability under actual operating conditions. The criteria for DC resistance and minimum breaking load are strictly regulated.
| Nominal area |
Structure | Approx. Overall diameter of cable |
Max. DC resistance at 20ºC |
Min. Breaking load |
Permissible current |
Approx. weight (without greased) |
Approx. Greased weight | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aluminum | Steel | ACSR/Lz | ACSR/Mz | ACSR/Hz | ACKP | ||||||
| mm² | Nº x mm | Nº x mm | mm | Ω/km | kN | A | kg/km | kg/km | kg/km | kg/km | kg/km |
| 16 / 2.7 | 6 x 1.84 | 1×1.84 | 5.6 | 1.7934 | 6.08 | 111 | 64.6 | – | – | 3.3 | 1.6 |
| 25 / 4.2 | 6×2.30 | 1×2.30 | 6.90 | 1.1478 | 9.13 | 148 | 100.9 | – | – | 5.1 | 2.4 |
| 40 / 6.7 | 6×2.91 | 1×2.91 | 8.73 | 0.7174 | 14.40 | 200 | 161.5 | – | – | 8.1 | 3.9 |
| 63 / 10 | 6×3.66 | 1×3.66 | 10.98 | 0.4555 | 21.63 | 267 | 254.4 | – | – | 12.8 | 6.2 |
| 100 | 6×4.61 | 1×4.61 | 13.83 | 0.2869 | 34.33 | 360 | 403.8 | – | – | 20.3 | 9.8 |
| 125 | 18×2.97 | 1×2.97 | 14.85 | 0.2304 | 29.17 | 410 | 397.9 | – | 8.4 | 25.3 | 16.5 |
| 125 | 26×2.47 | 7×1.92 | 15.64 | 0.2310 | 45.69 | 415 | 503.9 | 3.5 | 13.2 | 28.8 | 20.6 |
| 160 | 18×3.36 | 1×3.36 | 16.80 | 0.1800 | 36.18 | 481 | 509.3 | – | 10.8 | 32.4 | 21.1 |
| 160 | 26×2.80 | 7×2.18 | 17.74 | 0.1805 | 57.69 | 488 | 644.9 | 4.6 | 17.1 | 37.1 | 26.4 |
| 200 | 18×3.76 | 1×3.76 | 18.80 | 0.1440 | 44.22 | 555 | 636.7 | – | 13.5 | 40.6 | 26.4 |
| 200 | 26×3.13 | 7×2.43 | 19.81 | 0.1444 | 70.13 | 563 | 806.2 | 5.7 | 21.2 | 46.1 | 33.0 |
| 250 | 22×3.80 | 7×2.11 | 21.53 | 0.1154 | 68.72 | 646 | 880.6 | 4.3 | 22.7 | 54.9 | 38.8 |
| 250 | 26×3.50 | 7×2.72 | 22.16 | 0.1155 | 87.67 | 651 | 1007.7 | 7.1 | 26.6 | 57.8 | 41.3 |
| 315 | 45×2.99 | 7×1.99 | 23.91 | 0.0917 | 79.03 | 748 | 1039.6 | 3.8 | 37.9 | 67.8 | 56.1 |
| 315 | 26×3.93 | 7×3.05 | 24.87 | 0.0917 | 106.83 | 757 | 1269.7 | 8.9 | 33.4 | 72.6 | 52.0 |
| 400 | 45×3.36 | 7×2.24 | 26.88 | 0.0722 | 98.36 | 873 | 1320.1 | 4.8 | 48.0 | 85.8 | 70.8 |
| 400 | 54×3.07 | 7×3.07 | 27.63 | 0.0723 | 123.04 | 880 | 1510.3 | 9.0 | 54.1 | 90.2 | 68.9 |
| 450 | 45×3.57 | 7×2.38 | 28.56 | 0.0642 | 107.47 | 944 | 1485.2 | 5.4 | 54.2 | 96.9 | 79.9 |
| 450 | 54×3.26 | 7×3.26 | 29.34 | 0.0643 | 138.42 | 951 | 1699.1 | 10.2 | 61.0 | 101.7 | 77.7 |
| 500 | 45×3.76 | 7×2.51 | 30.09 | 0.0578 | 119.41 | 1010 | 1650.2 | 6.0 | 60.3 | 107.7 | 88.6 |
| 500 | 54×3.43 | 7×3.43 | 30.9 | 0.0578 | 153.80 | 1018 | 1887.9 | 11.1 | 66.4 | 110.3 | 85.5 |
| 560 | 45×3.98 | 7×2.65 | 31.8 | 0.0516 | 133.74 | 1088 | 1848.2 | 6.7 | 67.2 | 120.1 | 99.3 |
| 560 | 54×3.63 | 19×2.18 | 32.7 | 0.0516 | 172.59 | 1097 | 2103.4 | 13.6 | 76.8 | 127.3 | 96.6 |
| 630 | 45×4.22 | 7×2.81 | 33.8 | 0.0458 | 150.45 | 1175 | 2079.2 | 7.6 | 75.5 | 135.1 | 111.7 |
| 630 | 54×3.85 | 19×2.31 | 34.7 | 0.0458 | 191.77 | 1184 | 2366.3 | 15.3 | 86.2 | 142.9 | 109.4 |
Selecting the correct cable type for each specific project must reference the complete specification table. Engineers must use the official PDF document containing detailed information.
4. Comparison of related standards
Understanding the differences between standards helps engineers select the correct conductor type.
| Standard | Scope of application | Primary materials |
|---|---|---|
| TCVN 6483 | Vietnam | Applied to aluminum alloys, hard drawn aluminum, zinc-coated steel with round wires stranded in concentric layers |
| ASTM B232 | United States and widely used globally | Focuses on aluminum conductor steel reinforced (ACSR) bare conductors |
From the comparison table above, it can be clearly seen that the most important difference between the two standards is that TCVN 6483 has a broader scope of application regarding conductor materials compared to ASTM B232.
5. Applications & Ngoc Lan Cable products
Ngoc Lan Cable has implemented TCVN 6483 since the early years after the standard was issued. The increasingly stringent requirements of electrical power projects are met through investment in modern testing systems. Among our flagship products that demonstrate our technical capabilities, aluminum conductor steel reinforced (ACSR) bare conductors have been trusted in many national key projects.
- Cross sections from 16mm² to 710mm²
- Concentric stranded structure
In actual projects, merely understanding the basic specifications above is insufficient to achieve optimal performance and high durability for transmission lines. Accurate calculation of load-bearing capacity and sag for specific weather conditions and terrain requires detailed technical data beyond basic parameters. Factors such as wind loading, ice loading, and thermal expansion directly affect the conductor's service life. View detailed complete technical specification tables at ACSR aluminum conductor steel reinforced bare conductors.
6. FAQ – Frequently asked questions
6.1 Is TCVN 6483 still in effect?
TCVN 6483 remains fully effective in Vietnam. Currently, it continues to meet the current technical requirements of the electrical industry.
6.2 Where can I download the official PDF?
The official PDF document can be downloaded from the website tieuchuan.vsqi.gov.vn (Vietnam Institute for Standards and Quality) or Ngoc Lan Cable. Please use the version from official sources to ensure accuracy. We provide direct download links in the section below.
6.3 How does TCVN 6483 differ from ASTM B232?
TCVN 6483 has a broader scope of application regarding aluminum materials used for conductors compared to ASTM B232, which focuses only on aluminum conductor steel reinforced (ACSR) bare conductors.
7. Download PDF Documents and Catalogue
The demand for referencing specific product information during the design process is continuously increasing. Ngoc Lan Cable provides detailed catalogues for product lines meeting TCVN 6483 standards and TCVN PDF files. You can easily compare and select the appropriate cable type.
Download official TCVN 6483:1999 PDF
Complete standard document with technical regulations, testing methods and detailed specification tables.
View Ngoc Lan cable product catalogue
Technical specifications, product images and application guides for ACSR wire from 16mm² to 710mm²
8. Overall assessment and recommendations for TCVN 6483 standard implementation
TCVN 6483 has played an essential role in standardizing bare conductor quality for Vietnam's electrical industry for over 25 years. Power transmission line projects using conductors meeting TCVN 6483 standards have low failure rates. Operating costs are optimized thanks to strictly controlled technical specifications.
Benefits of implementing TCVN 6483:
- Technical quality assurance – Electrical and mechanical parameters are strictly controlled according to international standard procedures
- Meeting international requirements with standard-compliant products for export projects overseas
- High durability with mechanical load-bearing capacity and corrosion resistance
With our commitment to quality according to TCVN 6483 standards, Ngoc Lan Cable is ready to accompany domestic and international electrical power projects. Contact our professional engineering team for detailed consultation on conductor solutions suitable for your project.
