How to judge the quality of the conductor bar?

Although the quality identification strategy of conductor systems is familiar to senior procurement manufacturers, it is still an area to be explored for many new procurement elites. With that in mind, here's a hand-picked guide to help you get the hang of picking the best conductor systems to ensure you get the right quality for every purchase.

 

Although the quality identification strategy of conductor systems is familiar to senior procurement manufacturers, it is still an area to be explored for many new procurement elites. With that in mind, here's a hand-picked guide to help you get the hang of picking the best conductor systems to ensure you get the right quality for every purchase.

 

Aluminum Insulated conductor systems

The conductors, as well as the stainless steel strips and housings in which they are embedded, determine the lower limit of quality. At present, Jinan Dema Electric's product materials are all made of first-line brand materials in the industry, and customized services can be provided.

 

a. Demaelectric conductor material is made of 6101A professional conductive aluminum, which has low resistivity, high mechanical strength, strong conductivity and many types of application environments. Compared with some enterprises, the use of aluminum for doors and windows or recycled aluminum has poor conductivity, and long-term use will lead to an increase in power consumption and maintenance costs of enterprises.

 

b. For stainless steel strips, Jinan Dema Electric Co., Ltd. uses 304-grade stainless steel, which is food grade and almost completely rusty. Some conductor bar manufacturers use 201 steel belts, which will rust after long-term use, which will bring potential safety hazards.

 

c. In terms of processing technology, the composite strength and tightness of stainless steel strip and conductor are also important indicators to test the quality of the conductor rail.

The combination of conductor rail stainless steel strip and aluminum conductor produced by Demaelectric can ensure the stability of the conductive performance of the conductor during instantaneous start and normal operation, at the same time, it prevents the steel belt from falling off due to breakdown and sparking caused by loose steel belt wrapping.

 

Because the expansion coefficient of the stainless steel strip is less than that of aluminum, the steel strip will never fall off after compaction.

 

                           Common profile expansion coefficients

Metal Category	stainless steel	Galvanized steel	Copper	Aluminum
Expansion mm（100m×℃）	1.80	1.26	1.62	2.35

 

 

The processing technology of some conductor rail manufacturers is relatively rough and the durability is poor.

 

d. After the Jinan Dema Electric Co., Ltd. Conductor bars are processed and formed, the humanized production process of deburring and chamfering is added to the ends of all Conductor bars, and all Conductor bars' connectors are subjected to a vibration deburring process. This not only reduces the physical damage to worker caused by the products during installation and use, but also optimizes the continuous reliability of the conductors' conduction when connected.

 

In order to save labor costs, many conductor systems manufacturers do not adopt this process.

 

e. Our company's aluminum Insulated conductor systems Joints are made of the same 6101 high-quality conductive aluminum as the conductor, and the contact area of ​​the two conductor bars is increased. The stop nut is used to improve the stability and mechanical strength of the conductor systems.

Many companies still use Flat gaskets for connection, and the bolts are easy to loosen after long-term use, which reduces the safety of the product and increases the cost of subsequent maintenance.

 

f. The collector is assembled by inlaying special process materials and stainless steel metal parts. It can realize 360° free rotation of the Carbon brush and can be adjusted in the horizontal and vertical directions at the same time. The left and right swing amplitudes are both greater than 90°, realizing the three-dimensional spatial movement of the collector to ensure that the carbon brush and the conductor systems can maintain good contact in any state, meeting the working requirements of uninterrupted power supply to electrical equipment.

 

The collector support arm is made of aluminum alloy and is sprayed with plastic on the surface to eliminate static electricity on the metal surface and enhance its anti-oxidation and corrosion resistance.

 

The Carbon brush is the most critical component of the current collector. Our company's Carbon brush is made of a proprietary formula of graphite alloy copper and a special process of high-temperature treatment. Its wear resistance is 4-5 times that of similar domestic products.

 

g. Dema's Expansion joint uses a copper core plug-in, and a copper braided belt is added on the upper surface for auxiliary, which greatly improves the power-on rate, and has a compact structure and reliable connection.

 

 

 

Enclosed conductor systems

It is mainly composed of copper strips and housing, and the material used in the product is still the key indicator.

 

a. The copper strip used by Demaelectric is made of T2 copper, and the housing material is made of high-strength flame retardant material.

 

b. Observing the housing is the most intuitive way to judge the quality. The toughness and glossiness of the housing l can be used to judge the quality of the product. In addition, the housing can be tested for flame retardancy by burning.

 

Open copperhead conductor systems

The application field of Open copperhead conductor systems is relatively small, and mainly used in steel mills, smelting workshops, and other environments. Its quality mainly depends on the materials of copper and T-rail. At the same time, the better the fit between copper and substrate, the higher the processing level.

 

a. Demaelectric conductors are made of industrial pure copper T2 electrolytic copper with a copper content of ≥99.9%, low resistance, and low voltage per unit length. The conductor and the T-rail frame are compounded with a high-precision compound machine to ensure that there is no gap between the conductor and the T-rail, thereby reducing the power loss of the conductor bar.

 

Some manufacturers not only fail to meet the production standards but also cut corners on quality in order to lower prices.

 

b. Demaelectrical insulators are made of DMC raw materials mixed with epoxy resin. They use a special formula and have the comprehensive performance of insulation, high voltage resistance, aging resistance, corrosion resistance, high-temperature resistance, low-temperature resistance, sunlight resistance, rain resistance, fire retardancy, and a series of other factors. It used high-strength bakelite (porcelain) insulators. The insulation strength of the insulator is greater than 4kV and there is no breakdown for 5s.

 

c. The Demaelectric rail clips assembly is made of 20# cast steel or 6005 high-strength aluminum alloy and is formed in one step using a precision casting process. After forming, it is treated with a hot-dip galvanizing process for corrosion protection. The product has high strength and corrosion resistance.

d. The Expansion joint sections device of Demaelectric adopts a trapezoidal steel lining lined with a copper plate, which is not only high in strength but also allows the collector Carbon brush to slide smoothly when the expansion and contraction amount is large, ensuring the current continuity and temperature rise reliability when the Open copperhead conductor systems expand.

 

When choosing a conductor system, you should not let the price alone be the first threshold for your decision. Think carefully, consider the product's durability and long-term maintenance costs, and make every investment accurately act on improving production efficiency and cost control. Embrace the perfect balance of high quality and high-cost performance, maximize your purchasing value, not only escort the current project, but also lay a solid foundation for the long-term development of the company, and create a future with maximum benefits.