America's mature aluminum cable in the country to promote the use of nearly eight years, the basic application of the cable has been basically accepted by all parties. Aluminum cable industry and the market has now formed an upsurge, a variety of names of aluminum cable products are constantly flocking to the market. However, over the past eight years or have been deliberately avoided, the application of aluminum alloy cable safety and the most critical connection technology and related products has not caused the industry and the user's real concern. As we all know, the cable in the application of the security risks are basically connected. In 1968 the United States invented the aluminum cable technology, setting off a revolution in conductor materials. For the aluminum alloy conductor cable products, aluminum alloy cable manufacturers led by the South American cable actively cooperate with UL and other institutions to carry out the research on the connection technology and related connectors suitable for aluminum alloy conductor and cable products, made technical breakthroughs and formulated The corresponding standard. Aluminum alloy cable coupled with the supporting connection technology and connected products, together created in North America and other countries using aluminum cables for nearly 50 years without a case of safety accidents, the successful application of the product history. In 2006 and 2007, two U.S. companies brought the mature aluminum alloy cable technology and products in the United States into China respectively, creating and promoting the cause and development of aluminum alloy cables in China. However, due to different national conditions, due to the installation of cable connections, connection methods, manufacturing standards are different, foreign technology and connectors can not be used for domestic connector. The status quo in the country is that prior to the absence of aluminum alloy cable technology and products, of course, there is even no corresponding connection technology and ancillary products. Due to various factors, aluminum alloy cable manufacturers are unable to carry out their own connection technologies and connector-related studies with aluminum alloy cables. As a result, aluminum alloy cables have been used domestically for promotion and application. As no other solution is known, Can, but unfortunately used the original for the aluminum cable copper and aluminum transition terminal as a connector for the aluminum cable connection this wrong connection solution, from the domestic aluminum cable applications are extended in the cable connection This unscientific, incorrect connection solutions wrong, so that the application of aluminum alloy left a security risk. Why the use of copper and aluminum transition and other inconsistent with the performance of aluminum alloy cable so-called alloy connector connection scheme is unscientific, wrong, will leave a security risk? Simple example we can understand that, as we all know, conductor aluminum is fundamentally Improve the aluminum as a conductor of physical and mechanical defects, completely solve the aluminum conductor for medium and low voltage distribution power transmission, the connector on the aluminum mechanical, compression creep poor performance and other comprehensive reasons, resulting in frequent accidents , There are serious security problems and invention. Nowadays, the problem of defects caused by all the aluminum still exists in the aluminum-copper terminal due to the presence of aluminum. What is the difference between this connection scheme and the direct-use aluminum cable? What are the advantages of using the aluminum-alloy cable? And the value? Also the use of aluminum alloy cable performance inconsistent so-called alloy connector connection problem, because this so-called alloy connector alloy in chemical, electrical, mechanical properties, special compression creep performance and other aspects of the connection Aluminum alloy cable performance inconsistent, do not match, this connection program will bring the results? Not one by one started. As for the aluminum-aluminum transitional terminal currently used in the aluminum alloy cable application, it is originally used for aluminum cable connection, the connection size of the terminal can not be safely matched with the size of the terminal device, and it often happens that the contact surface of the terminal is directly ground and the contact of the terminal is reduced Surface size to adapt to the harsh conditions of the connection. Abrasion terminal contact surface, reducing the terminal contact surface size, which will directly undermine the mechanical properties of the terminal, and cause the terminal contact surface electrical performance, current carrying capacity is insufficient, the connection site overload, fever, a direct result of a fatal safety hazard. Furthermore, due to the different production processes of aluminum cables and aluminum alloy cables, the inner diameter of the transition terminal of copper-aluminum transitional aluminum cables does not match the outer diameter of the aluminum alloy cable conductors, and requires special crimping tools and strict standard construction. However, it is difficult to guarantee the standard construction of the connection between the aluminum alloy cable and the terminal in the construction of the aluminum alloy cable in the country, so the quality of the connection between the aluminum alloy cable and the terminal is greatly hidden. Safe, no hidden dangers, the right connection options are: First of all, the application of aluminum alloy cable, the connection should be used with the same aluminum alloy cable connected to the same chemical, electrical, mechanical properties, compressive creep and other properties of aluminum alloy copper connector, so that aluminum cables and connectors The same performance, in order to achieve the perfect connection, the real advantage of the use of aluminum cables and value. Secondly, the special aluminum alloy copper connecting terminal is used to connect the copper connecting terminal of the terminal device. When the size and the electrical performance of the special aluminum alloy connecting terminal are completely matched with the size and performance of the connecting terminal device, Ensure secure connection with the terminal. This can be completely put an end to avoid the terminal due to the terminal can not match and kill the terminal connection bar and other security risks caused by brutal construction. And then, the special aluminum alloy copper connection terminals and other accessories, the aluminum alloy end of its connection aluminum alloy cable diameter and the outer diameter of the cable conductor to zero tolerance, reducing the pressure requirements of crimping tools. Terminal diameter matching the traditional crimping copper tools, engineering construction is no longer used aluminum crimping crimping tools, direct use of copper crimping tools, and copper crimping as easy, reliable, convenient and standardized construction, effectively Improve the quality of cable connection construction. Aluminum alloy cable technology and product development is the trend of the times, how to correctly select the aluminum alloy cable connection application program is related to the application of aluminum alloy cable can be safe, no hidden problems, but also the healthy development of the aluminum cable industry needs, This relates to the long-term interests of users and industries. Aluminum alloy cable technology research and progress is the aluminum alloy cable industry can no longer be avoided the reality of the problem, the domestic aluminum cable applications like North America and other countries, to create ten years, twenty years, and even without a safe long time It is an urgent matter to apply the successful history of accident products and to study and use the correct connection technology and scientific connection solutions to solve the case. 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