Overhead ACSS / AW Transmission Conductor , High Temperature Conductors Anti Corrosion

Overhead ACSS/AW Aluminum Conductor Aluminum-Clad Steel Supported Conductor

Quick Details

Packaging & Delivery

Packaging Details: New wooden drum, Reel, Circle or according to customer's request
Delivery Time: According to customer's request, usually 2-4 weeks.

Description

Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductor, Steel-Supported (ACSS/TW) is a concentrically stranded conductor with one or more layers of trapezoidal shaped hard drawn and annealed 1350 aluminum wires on a central core of steel. ACSS/TW can either be designed to have an equal aluminum cross sectional area as that of a standard ACSS which results in a smaller conductor diameter maintaining the same ampacity level but reduced wind loading parameters or with diameter equal to that of a standard ACSS which results in a significantly higher aluminum area, lower conductor resistance and increased current rating.
ACSS/TW is designed to operate continuously at elevated temperatures, it sags less under emergency electrical loadings than ACSR/TW, excellent self-damping properties, and its final sags are not affected by long- term creep of aluminum. ACSS/TW also provides many design possibilities in new line construction: i.e., reduced tower cost, decreased sag, increased self-damping properties, increased operating temperature and improved corrosion resistance. The coating of steel core is selected to suit the environment to which the conductor is exposed and operating temperature of the conductor.

Service Performance

1. High tensile strength
2. Long life
3. Light in weight
4. Suitable for high as well as extra high overhead

Construction

ACSS/TW, a nonhomogeneous conductor, is a trapezoidal shaped wire compact concentriclay- stranded conductor made from aluminum 1350-O wires and round, coated steel core wire(s). ACSS/TW conductors withequal area or equal diameter as compared to ACSS conductors are available for overhead lines. Steel wires are coated with Class A coating of zinc - 5% aluminum mischmetal alloy. Other Classes of coatings are also available for additional protection from corrosion. Standard, High, Extra and Ultra High Strength steel are also available.

ACSS is a composite concentric-lay stranded conductor. Steel strands form the central core of the conductor with one or more layers of aluminum 1350-0 wire stranded around it. The steel core carries most or all of the mechanical load of the conductor due to the "0" (fully annealed or soft) temper aluminum. Steel core wires are protected from corrosion by galvanizing, aluminizing, or mischmetal alloy coating. Corrosion protection should be selected to suit the environment to which the conductor will be exposed. High strength steel core is also available.

Features

ACSS conductors are preferred over ACSR conductors for specific transmission line applications:
ACSS has at least 63.0% IACS conductivity due to their “dead-soft” (fully annealed) aluminum strands.
For the same reason, ACSS cables can be operated at temperatures of maximum 250 °C without loss of strength. Since the mechanical tension applied to the aluminum strands is low, the ACSS self damping characteristic is high. This allows ACSS cables to be installed at high unloaded tensions without the need for separate Stockbridge dampers.
-- ACSS conductors can be operated up to 250 °C vs. the maximum operating temperature for an ACSR conductor does not exceed 100 °C.
ACSS conductors are prone to resist the effects of aeolian vibration due to very little or no mechanical load on the annealed aluminum wires.
Long term creep is not a factor when designing with ACSS conductors. In addition, use of ACSS/TW with the equal area design allows equal ampacity in a conductor with approximately 10% smaller diameter over a standard ACSS with same area. This smaller diameter of equal area ACSS/TW conductors helps reduce the effects of ice and wind loading on the conductor.
Alternatively, use of ACSS/TW with equal diameter design provides a conductor in which the aluminum area is increased by approximately 20% - 25% over a standard ACSS with same diameter. This increase
in the cross-sectional area of the conductor reduces its ac resistance by about 15% - 20% and thus, increases its current carrying capacity by about 10%.

Advantages

1. Reduced drag characteristics
2. Excellent self-damping properties
3. Improved current carrying capacity
4. Low wind and ice loading parameters
5. long term creep of aluminum doesnot affect final sag

Application

ACSS is used for overhead distribution and transmission lines. It is designed to operate continuously at elevated temperatures up to 250°C without loss of strength; it sags less under emergency electrical loadings than ACSR; it is self-damping if prestretched during installation; and its final sags are not affected by long term creep of aluminum. The advantages make ACSS especially useful in reconductoring applications requiring increased current with existing tensions and clearances, new line applications where structures can be economized because of reduced conductor sag, new line applications requiring high emergency loadings, and lines where aeolian vibration is a problem.

Specification

• ACSS/TW conductor meets or exceeds the following ASTM specifications:
• B 232 Aluminum Conductors,Concentric-Lay-Stranded,Coated Steel Reinforced(ACSR).
• B 498 Zinc-Coated(Galvanized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR).
• B 609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes.
• B 857 Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW).

Formed in 2001, Guangzhou Xinyuan Hengye Power Transmission Device Co., Ltd. specializes in the manufacture of high voltage power transmission line accessories, as well as research and development in related areas. Our company is located at Zengcheng Yonghe, in the east part of Guangzhou, with excellent environment and convenient transportation.

Over years of development, we have gradually established ourselves as one of the market leaders, owing to our highly competitive strength in high voltage technology, complete production facilities and work force.

Work Force

We take special pride in or R&D and management teams. Now we have about 326 staff members, more than 30.6% of whom are qualified engineers and technicians, in addition to 34 R&D personnel. Our extensive expertise ranges from mechanical engineering, corona, electrical design and product testing, to manufacturing process.

Product Range

The company focus on development and production of fittings and conductors for voltage from 110kV to 1000kV. It had supplied around 10 transmission lines for 800kV till 1000kV in domestic. For oversea market, it had supplied to Vietnam(220kV&500kV), India(400kV&765kV), Poland(110kV to 400kV), Pakistan, Bangladesh, Syria, Paraguay, etc.

To ensure quality products, we have accumulated experience in designing and producing electric power fittings, electric substation fittings, and ultra-high voltage power transmission products. Our major products include 500kV heat-resistant power line fittings, energy-saving power line fittings, environmentally-friendly power line fittings, and high altitude line fittings. We also do research and development in related areas.

Over years of development, we have provided line fittings for heavy snow area, 750kV ultra-high voltage AC line fittings, 800kV ultra-high voltage DC line fittings, and 1000kV ultra-high voltage AC line fittings. Our products are designated to be used in national large power transmission projects, such as The Three Gorges and west-east power transmission, and are exported to many foreign countries in the Middle East and Mid and South Asia. Apart from this, we provide nonstandard and customized products according to the specific requirements of our clients.

We are an ISO9001:2000 certified company. All Manufactured products have been thoroughly tested in accordance with the national standards prior to shipment. Outstanding management patterns, advanced production techniques, and standardized testing equipment and procedures serve as the basis of our constant pursuit towards Zero Defect.

The company wholly owned subsidiary Fogang Xinyuan Hengye Cable Technology Co., Ltd. (hereinafter referred to as "Fogang Xinyuan") as the main body to carry out the research and development, production and sales of stranded carbon fiber core conductor. Fogang Xinyuan was established in November 2009 with a registered capital of 76,000,000 RMB, which was located in West Yingfo Road, Shijiao Town, Fogang District, Qingyuan City.

Fogang Xinyuan is the solo manufacturer for ACMCC conductor (Aluminium Conductor Multi-strand Carbon Fiber core) in China. ACMCC is designed for double capacity of power transmission. ACMCC Conductors can meet the requirements of ASTM, EN, BS and IEC etc. Fogang Xinyuan also has a full set of independent intellectual property rights of the manufacturing process, production equipments and product structure for ACMCC conductor.