| Customization: | Available |
|---|---|
| Application: | Construction, Overhead, Industrial, Power Station |
| Voltage: | High Voltage Cable |
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Overhead lines, sometimes referred to as aerial conductors, are often specified where there are significant distances to cover and where these cables are best positioned far out of reach. The distances to cover, the environmental conditions it will face, and the location are all factors in specifying the appropriate cable.
The main classifications of bare conductor are AAC (All aluminum conductor), AAAC (All aluminum Alloy Conductor) or ACSR (aluminum conductor steel reinforced). AAC is most commonly found in urban areas with frequent supports and short spans. It is also used in coastal regions where salt in the air can cause corrosion - the all-aluminum wire providing corrosion resistance - and specified for use in the railway industry for OHL electrification. AAAC tend to be specified where greater mechanical resistance is required and where there is a reduced sag characteristic. The ACSR, with its steel reinforcement provides additional strength and where the spans run for larger distances, such as across rivers.
The advantages of AAC, AAAC and ACSR come in their lightweight properties. These overhead lines have no specified voltage rating - it will depend on the type of installation - although the higher corona limit of ACSR makes it beneficial when used with high voltage and extra-high voltage transmission. The overhead line wires are manufactured in accordance with various national standards and can be sized appropriately - including GB/T1179 ASTM B231, ASTM B399, IEC 61089, DIN 48201, BS 215, BS 3242, BS EN 50182 and Spanish standard UNE 21.018. etc.
Aluminum Conductors Steel Reinforced (ACSR)
1. Aplication
ACSR conductors are widely used for electrical power transmission over long distances, since they are ideal for long overhead lines spans. They are also used as a messenger for supporting overhead electrical cables.
2. Structure And Reference Picture
ACSR conduc tors are formed by several wires of aluminum and galvanized steel, stranded in concentric layers. The wire or wires which form the core, are made of galvanized steel and the external layer or layers, are of aluminum. Galvanized steel core consists normally of 1, 7 or 19 wires. The diameters of steel and aluminum wires can be the same, or different.
By varying the relative proportions of aluminum and steel, the required characteristics for any particular application can be reached. A higher U. T. S. Can be obtained, by increasing steel content, and a higher current carrying capacity by increasing aluminum content.
In ACSR Conductor outer layer consist of aluminum strands.
No. of Strands usd for ACSR Conductor is given by 3n²-3n+1 n=no. of layers
Paticular ACSR conductor is choosed for that Transmission Line:
For 11KV and 33 KV Line
| Name of Conductor | No. of AL Strand | No. of Steel Strand | Overall Diameter | Resisitance at 20 ºC | Breaking Load | Cuurent Capacity at 75ºC |
| Rabbit | 6 | 1 | 10.05mm | 0.5524 Ω | 18.25 KN | 190A |
| Dog | 6 | 1 | 14.15mm | 0.2792 Ω | 32.41 KN | 291A |
Load Capacity in MVA for Rabbit = 1.732*11*190=3.62MVA
Load Capacity in MVA for Dog =1.732*33*291=16.63 MVA
For 66KV and 132 KV Line
| Name of Conductor | No. of AL Strand | No. of Steel Strand | Overall Diameter | Resisitance at 20 ºC | Breaking Load | Cuurent Capacity at 75ºC |
| Wolf | 30 | 7 | 18.3mm | 0.1871 Ω | 67.34 KN | 405A |
| Panther | 30 | 7 | 21 mm | 0.139 Ω | 86.67 KN | 487A |
Load Capacity in MVA for Wolf = 1.732*66*405=46.3 MVA
Load Capacity in MVA for Panther =1.732*132*487=111.34 MVA
For 220KV and 400 KV Line
| Name of Conductor | No. of AL Strand | No. of Steel Strand | Overall Diameter | Resisitance at 20 ºC | Breaking Load | Cuurent Capacity at 75ºC |
| Zebra | 54 | 7 | 28.62mm | 0.06868 Ω | 130.32 KN | 737A |
| Moose | 54 | 7 | 31.77mm | 0.05595 Ω | 159.6 KN | 836A |
Load Capacity in MVA for Zebra = 1.732*220*737=280.83 MVA
Load Capacity in MVA for Moose =1.732*400*836=579.18 MVA
3.Electrical properties
| Density at 20ºC | Aluminum: 2.703 kg/dm3 |
| Galvanized Steel: 7.78 kg/dm3 | |
| Temperature coefficient at 20°C | Aluminum: 0.00403 °C |
| Resistivity at 20°C | Aluminum ≤ 0.028264Ω•mm2/m |
| Coefficient of linear expansion: | Aluminum: 23 x10-6 °C |
| Galvanized Steel: 11.5 x10-6 °C |
4.Product parameters
Aluminum conductor steel reinforced (ACSR)-BS 215 (This standard as an example, the actual standard is order by clients requirement.)
| Code | Nominal Section Area mm2 |
Stranding No./Diameter |
Structure | Maximum DC Resistance At 20ºC Ω/km |
Rated Strength kN |
| AL mm |
Steel mm |
||||
| Mole | 10 | 6/1.50 | 1/1.50 | 2.707 | 2.707 |
| Squirrel | 20 | 6/2.11 | 1/2.11 | 1.368 | 1.368 |
| Gopher | 25 | 6/2.36 | 1/2.36 | 1.093 | 1.093 |
| Weasel | 30 | 6/2.59 | 1/2.59 | 0.9077 | 0.9077 |
| Fox | 35 | 6/2.79 | 1/2.79 | 0.7823 | 0.7823 |
| Ferret | 40 | 6/3.00 | 1/3.00 | 0.6766 | 0.6766 |
| Rabbit | 50 | 6/3.35 | 1/3.35 | 0.5426 | 0.5426 |
| Mink | 60 | 6/3.66 | 1/3.66 | 0.4545 | 0.4545 |
| Skunk | 60 | 12/2.59 | 7/2.59 | 0.4568 | 0.4568 |
| Beaver | 70 | 6/3.99 | 1/3.99 | 0.3825 | 0.3825 |
| Horse | 70 | 12/2.79 | 7/2.79 | 0.3936 | 0.3936 |
| Racoon | 75 | 6/4.10 | 1/4.10 | 0.3622 | 0.3622 |
| Otter | 75 | 6/4.22 | 1/4.22 | 0.3419 | 0.3419 |
| Cat | 80 | 6/4.50 | 1/4.50 | 0.3077 | 0.3077 |
| Hare | 90 | 6/4.72 | 1/4.72 | 0.2733 | 0.2733 |
| Dog | 100 | 6/4.72 | 7/1.57 | 0.2733 | 0.2733 |
| Hyena | 100 | 7/4.39 | 7/1.93 | 0.2728 | 0.2728 |
| Cougar | 100 | 8/3.05 | 1/3.05 | 0.219 | 0.219 |
| Leopard | 125 | 6/5.28 | 7/1.75 | 0.2184 | 0.2184 |
| Tiger | 125 | 30/2.36 | 7/2.36 | 0.2203 | 0.2203 |
| Dingo | 125 | 18/3.35 | 1/3.35 | 0.1814 | 0.1814 |
| Wolf | 150 | 30/2.59 | 7/2.59 | 0.1828 | 0.1828 |
| Caracal | 150 | 18/3.61 | 1/3.61 | 0.1563 | 0.1563 |
| Lynx | 175 | 30/2.79 | 7/2.79 | 0.1576 | 0.1576 |
| Jaguar | 200 | 18/3.86 | 1/3.86 | 0.1367 | 0.1367 |
| Panther | 200 | 30/3.00 | 7/3.00 | 0.1362 | 0.1362 |
| Lion | 225 | 30/3.18 | 7/3.18 | 0.1213 | 0.1213 |
| Bear | 250 | 30/3.35 | 7/3.35 | 0.1093 | 0.1093 |
| Goat | 300 | 30/3.71 | 7/3.71 | 0.08911 | 0.08911 |
| Sheep | 350 | 30/3.99 | 7/3.99 | 0.07704 | 0.07704 |
| Antelop | 350 | 54/2.97 | 7/2.97 | 0.07727 | 0.07727 |
| Bison | 350 | 54/3.00 | 7/3.00 | 0.07573 | 0.07573 |
| Deer | 400 | 30/4.27 | 7/4.27 | 0.06727 | 0.06727 |
| Zebra | 400 | 54/3.18 | 7/3.18 | 0.0674 | 0.0674 |
| Elk | 450 | 30/4.50 | 7/4.50 | 0.06067 | 0.06067 |
| Camellia | 450 | 54/3.35 | 7/3.35 | 0.06073 | 0.06073 |
| Moose | 500 | 54/3.53 | 7/3.53 | 0.0547 | 0.0547 |
Xinfeng Cable Co., Ltd. is a research and development, production, sales in one of the well-known wire and cable enterprises, with a complete and scientific quality management system, advanced technical team support, strong sales and after-sales service.
Henan Xinfeng Cable Co., LTD., founded in 1996, with a registered capital of 210 million CNY, covers a total area of 50,000 square meters, the existing staff of 586 people, including a variety of technical personnel more than 80 people, with a university degree 60 people, the company has the current domestic advanced production equipment and testing equipment, including more than 200 sets of advanced cable production equipment. And spend tens of millions to purchase the most complete cable testing equipment.
In 2012, the company took the lead in the cable industry through the ISO9001 international quality system certification, ISO14001 occupational safety and health certification system, 18001 environmental management certification, national CCC compulsory certification and other qualifications, and through the European safety product CE certification, European environmental protection ROSH certification, SGS environmental protection product testing certification. In 20 years of development, it has formed an annual production capacity of 1.5 billion CNY for overhead insulated wires, high and low voltage cables, BV cables and other products, and constantly improve and expand the research and development and production field of cable products.
At present, the company is mainly engaged in the system design, development, manufacturing, marketing and service of more than 1000 kinds of cables in four categories: overhead wire, power cable, electrical equipment wire and cable, and special cable. Products are widely used in power, water conservancy, railway, transportation, new energy, petroleum and petrochemical, national defense, construction and urban infrastructure and other fields.
The company is headquartered in Zhengzhou, and has set up 8 branches in Beijing, Wuhan, Xi 'an, Hefei, etc., responsible for the sales and after-sales work in and around the region. In 2013, the group wholly established Henan JinFar East Cable Co., LTD., responsible for the international market sales and expansion business, products are exported to the Americas, Africa, Australia, Europe and other 38 countries and regions, products by foreign customers praise.
With the continuous expansion of product share, Xinfeng cable products have also been widely recognized and praised by the majority of users, The company has successively won the industry "National quality integrity enterprise", "China Famous products", "Henan famous brand products", 2013-2015 successively won the Henan Provincial Bureau of Industry and Commerce "contract-abiding and trustworthy enterprise", "quality, service, credit AAA enterprise", "National product quality supervision and sampling inspection qualified enterprise" and other honors.
1.Advanced Production Equipment:Advanced production equipment and testing equipment, including more than 200 sets of advanced cable production equipment.Medium voltage cable production equipment uses the German Sikora brand.
2.Quality Control:The factory has well-equipped quality control room,can complete the inspection of all major electrical parameters.
3.Experienced Team:Our experienced production and sales teams can respond to a wide variety of projects, quickly respond to customer needs, and are able to provide type test reports for most major products.
4.Competitive Pricing:Our pricing competitive without compromising on quality
Q:What factors should be considered when selecting a power cable?
A:Factors include voltage rating, current carrying capacity, environmental conditions (temperature, moisture, chemicals), mechanical stresses (such as impact or vibration), installation requirements, and regulatory standards.Our sales team can assist in selecting the appropriate cable based on these factors.
Q:What types of power cables do you offer?
A:We offer a wide range of power cables including low voltage (voltages up to 1000V.), medium voltage (1000V to 35 kV.). We also provide specialty cables such as fire-resistant, armored, and flexible cables to meet various customer needs.
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