Wire and cable performance

Wire and cable products are used in different occasions, so the performance requirements are many and very extensive. From a whole point of view, its main performance is: 1. Electrical Properties Conductive Properties - Most products require good electrical conductivity, and individual products require a certain range of electrical resistance. Electrical insulation properties—insulation resistance, dielectric coefficient, dielectric loss, and electrical resistance characteristics. Transmission characteristics - refers to high-frequency transmission characteristics, anti-jamming characteristics.

2. Mechanical properties refer to tensile strength, elongation, bendability, elasticity, softness, shock resistance, abrasion resistance, and mechanical impact resistance.

3. Thermal performance refers to the product's temperature rating, operating temperature Heat and heat dissipation characteristics of power transmission cables, current carrying capacity, short-circuit and overload capabilities, thermal deformation and thermal shock resistance of composite materials, thermal expansion of materials, and impregnation or coating Dropping performance of materials, etc.

4. Corrosion resistance and weather resistance are resistance to galvanic corrosion, resistance to biological and bacterial attack, resistance to chemicals (oil, acids, alkalis, chemical solvents, etc.), resistance to salt spray, light, cold, mildew, and moisture resistance.

5. Aging performance refers to the ability of products and their constituent materials to maintain their original performance under the influence of mechanical stress, electrical stress, thermal stress, and various other external factors, or external weather conditions.

6. Other properties include properties of some materials (such as hardness, creep of metal materials, compatibility of polymer materials) and certain special characteristics of products (such as non-flammability, resistance to atomic radiation, insect bites, delayed transmission, etc.) , and energy damping, etc.)

The performance requirements of products are mainly proposed from the aspects of the use of specific products, the conditions of use, and the matching relationship of supporting equipment. In a product's various performance requirements, there must be some of the main, play a decisive role, should be strictly required. Some are subordinate. Sometimes some factors are mutually restrictive. Therefore, comprehensive research and analysis must be comprehensively considered.