It is of great significance to study the EU wire and cable standards

Since the establishment of the EU, the pace of standardization work has accelerated rapidly. The European Union has always been at the forefront of the world and has led the world trend. The EU currently has 25 member states. GDP and the United States are on an equal footing. The influence of EU standards in the world is increasing. There is only one ROSH directive, which has caused the world to turn upside down. Each year, China exports nearly 200,000 tons of wire and cable products to the European Union, second only to the United States. The study of EU standards is of great significance to China's wire and cable industry.

In 2002, the European Union promulgated the product standard EN13602 for copper wire for conductors. Its full name is "copper and copper alloys - cold drawn round copper wire for the manufacture of electrical conductors". The promulgation of this standard as the unified standard of the European Union and the national standard of each member country has replaced the original national standards of each member country, such as DIN40500 and BS4109, which we are very familiar with. Copper wire is the most important raw material or semi-finished product of wire and cable. The copper wire standard is the most widely cited basic standard in the production of wire and cable production standards. The specification of copper wire standards will affect the performance and quality of most wire and cable products. In particular, a large proportion of China's products are based on German standards such as German, French and British standards, and are mainly found in automotive wires, railway locomotive cables, and machine control cables. In the face of the current situation of increasingly tense energy resources and the soaring prices of materials, it is of great significance to strengthen the control of the quality of copper wire for wire and cable cost control and improvement of product performance, and the reduction in energy consumption is a shortcut to the study and application of new EU standards. . The new European Union standard condenses the crystallization of long-term processing technology and experience of European companies. It has comprehensive content, specific indicators, and complete specifications. It has important guiding significance for the production, inspection, trade, and use of copper wire.

The EN13602 standard includes bare copper monofilaments, long bare copper monofilaments, tinned monofilaments, and long tinned monofilaments in product categories. Corresponding Chinese standards GB/T3953 and GB/T4909, not only the specific requirements are higher than our national standards. On the material, the standard specifies the requirements for analysis of metal chemical content. In terms of product properties, the mechanical properties of copper wire not only specify the elongation, but also stipulates the bending strength requirements of flexural strength and flexibility. Especially in the product processing method for the first time the multi-drawing products were included in the standard, and the classification, performance and test methods of the multi-wired products were stipulated. The standard also specifies the different packaging requirements for multi-headed copper wires for take-up and idlers. The multi-end copper wire is convenient for stranding, has uniform quality, is not suitable for short filaments, has good resistance to bending, and has high production efficiency, and is widely used for manufacturing conductors of electrical equipment cables and automobile cables. Long copper wire accounts for a large proportion of European copper wire production. In Europe, multi-head wire drawing machines are already the trademark equipment for the production of flexible cables for automobile cables and industrial machinery. The EN13602 standard has a major impact on the production, use, and trade of copper wires for wire and cable in the world as a result of the call to the end of the wire cable.