What is the Cable Environmental Reliability Test
April 26, 2021
Salt Spray Test
The cable is directly buried in the area with acid and alkali, which will often cause the cable armor, lead skin or outer protective layer to be corroded. The protective layer suffers from chemical corrosion or electrolytic corrosion for a long time, resulting in the failure of the protective layer and the reduction of insulation. The cable is faulty.
The salt spray test simulates the environment of the ocean or humid area climate and is used to assess the resistance of products, materials and their protective layers to salt spray corrosion.
High Temperature Test
The external environment and heat source of the cable can also cause the cable to overheat, insulation breakdown, and even explosion and fire.
High temperature has many effects on products, such as aging, oxidation, chemical changes, thermal diffusion, electromigration, metal migration, melting, vaporization deformation, etc. Usually, the life of the product will be reduced to a quarter for every 10°C rise in the surrounding environment; When the ambient temperature rises by 20°C, the product life will be reduced by half. The life of the product follows the "10°C rule". Therefore, the high temperature test is the most commonly used test for the selection, aging test, life test, and accelerated life of components and the whole machine. Tests also play an important role in the verification of failure analysis.
UV Ultraviolet Light Aging Test
Used to simulate the damaging effects of sunlight, humidity and temperature on cables; material aging includes fading, loss of light, strength reduction, cracking, peeling, chalking and oxidation, etc.
Xenon Lamp Aging/ Solar Radiation
Using a xenon arc lamp that simulates the full sunlight spectrum to reproduce the destructive light waves existing in different environments can provide corresponding environmental simulations and accelerated tests for scientific research, cable product development and quality control.
Gas Corrosion Test
Gas corrosion is mainly applied to contact points and connectors. The evaluation standard after the test is the change of contact resistance, followed by the change of appearance. The main corrosive gases are sulfur dioxide, hydrogen sulfide, nitrogen dioxide, and chlorine. One or more gases can be selected for testing according to the use environment.
Ozone Aging Test
The ozone test is suitable for testing the ozone aging resistance and aging cracking test of non-metallic materials and organic materials (such as: coatings, paints, rubber, plastics, cables, wires and their products) of rubber products.