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- General information and scope of application of the standard
- Technical specification reference table for ACSR wire (Aluminum Conductor Steel Reinforced)
- Comparison with related standards (ASTM B232)
Mastering the requirements of technical standards is essential in electrical system design and construction work. Let's explore with Ngoc Lan Cable the detailed necessary aspects of this standard.
1. Introduction to TCVN 6483
TCVN 6483 was issued in 1999, specifying in detail the stranded structure and electro-mechanical characteristics of bare conductors manufactured from metal wires such as hard drawn aluminum (symbol A1), aluminum alloys (A2, A3), and galvanized steel wires with various strength grades (S1A, S2A, S3A). This standard helps standardize the production process of stranded bare aluminum wires, applied as conductors for overhead power transmission lines.
2. Main Information Table
The need to reference technical information in design work is increasing. This information table summarizes the important points of the standard, allowing engineers to efficiently 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, galvanized steel, hard drawn aluminum |
| Year of issuance: | 1999 |
| Current status: | Fully effective |
| Issuing authority: | Ministry of Science & Technology of Vietnam |
3. Technical Specifications Reference Table
The technical specifications in TCVN 6483 are designed to ensure transmission performance and high reliability under actual operating conditions. DC resistance and breaking load specifications are strictly regulated.
| Nominal cross-sectional area | Structure | Approximate overall diameter of cable | Maximum DC resistance at 20ºC | Minimum breaking load | Current carrying capacity | Approximate weight | Approximate 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 wire type for each specific project must reference the complete specification table. Engineers must use the official PDF document with detailed information.
4. Related Standards Comparison
Understanding the differences between standards helps engineers select the correct conductor type.
| Standard | Scope of application | Main materials |
|---|---|---|
| TCVN 6483 | Vietnam | Applied for aluminum alloys, hard drawn aluminum, galvanized steel with round wires stranded in concentric layers |
| ASTM B232 | United States and widely used globally | Focused on aluminum conductor steel reinforced bare wire (ACSR) |
From the comparison table above, we can clearly see that the most important difference between the two standards is that TCVN 6483's scope of application for conductor materials is broader than ASTM B232.
5. Electrical Industry Application & Ngoc Lan Cable Products
Ngoc Lan Cable has applied TCVN 6483 since the early years after the standard was issued. Increasingly stringent requirements of power projects are met through investment in modern testing systems. Among the flagship products affirming our technical capabilities, aluminum conductor steel reinforced bare wire has been trusted in many national key projects.
- Cross section from 16mm² to 710mm²
- Concentric stranded structure
In actual projects, understanding only the basic specifications above is not sufficient to achieve optimal performance and high durability for the wire line. Accurate calculation of load capacity and sag for each specific weather condition and terrain requires detailed technical data beyond basic specifications. Factors such as wind load, ice load, and thermal expansion directly affect conductor lifespan. See detailed complete technical specification table at ACSR aluminum conductor steel reinforced bare wire.
6. Frequently Asked Questions About TCVN 6483
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).
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. View Original Document and Products Applying TCVN 6483
The need to reference specific product information during the design process is increasing. Ngoc Lan Cable provides detailed catalogues of product lines meeting TCVN 6483 standards and the original link to TCVN 6483. You can easily compare and select the appropriate wire type.
View official TCVN 6483:1999 document
Complete standard document 6483:1999 with technical regulations, test methods, and detailed specification tables.
View Ngoc Lan Cable product catalogue
Technical specifications, product images, and application guidelines for ACSR wire from 16mm² to 500mm².
8. Overall Assessment and Recommendations for TCVN 6483 Application
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 incident rates. Operating costs are optimized thanks to strictly controlled technical specifications.
Benefits of applying TCVN 6483:
- Ensuring technical quality – Electrical and mechanical specifications are strictly controlled according to international standard processes
- Meeting international requirements with standard-compliant products in export projects abroad
- High durability with mechanical load capacity and corrosion resistance
With quality commitment according to TCVN 6483 standard, Ngoc Lan Cable is ready to accompany power projects domestically and internationally. Contact our professional engineering team for detailed consultation on conductor solutions suitable for your project.
