Wire and cable products are used in a variety of applications, so their performance requirements are multifaceted and extensive. Generally speaking, their primary performance can be summarized as follows:
Electrical Performance
Conductivity: Most products require excellent conductivity, and individual products must have a certain resistance range.
Electrical Insulation: Insulation resistance, dielectric constant, dielectric loss, and electrical withstand characteristics.
Transmission Characteristics: High-frequency transmission characteristics and anti-interference properties.
Mechanical Performance:
Tensile strength, elongation, flexibility, elasticity, softness, shock resistance, abrasion resistance, and mechanical impact resistance.
Thermal Performance
This refers to the product’s temperature resistance rating, operating temperature, heat generation and heat dissipation characteristics of power transmission wires and cables, current carrying capacity, short-circuit and overload capacity, thermal deformation and thermal shock resistance of the component materials, thermal expansion of the material, and drip resistance of the impregnated or coated material.
Corrosion and Weather Resistance
This refers to resistance to electrochemical corrosion, biological and bacterial corrosion, chemical corrosion (oil, acid, alkali, chemical solvents, etc.), salt spray resistance, light resistance, cold resistance, mildew resistance, and moisture resistance.
Aging Performance
This refers to the ability of the product and its component materials to maintain their original performance under the effects of mechanical stress, electrical stress, thermal stress, and other external factors, or under external climatic conditions.
Other Performance
This includes the properties of certain materials (such as the hardness and creep of metal materials and the compatibility of polymer materials) as well as certain special application characteristics of the product (such as flame retardancy, atomic radiation resistance, insect bite resistance, time transmission delay, and energy damping).
Product functional requirements are primarily based on the specific product’s purpose, application conditions, and the coordination and interaction with supporting equipment. Among a product’s various functional requirements, some are crucial, decisive, and must be strictly met.
Others are subordinate, and sometimes certain factors are mutually restrictive. Therefore, comprehensive research, analysis, and comprehensive consideration are necessary.
Post time: 2025-09-30
