Insulation coordination is defined according to the requirements of the product and the surrounding environment to select electrical insulation properties, only in its lifetime endured a variety of roles (such as voltage and other factors) based on the strength, to achieve the ultimate goal of product insulation coordination. Three Bay Electric Technology Department in reference to all the information in the following concluded: insulation coordination principle, low-voltage equipment for insulation coordination requirements of low-voltage electrical terminals in the application and design requirements: insulation coordination principle insulation co-ordination 1 terminal line insulation damage and influencing factors. One is the breakdown (thermal breakdown) that is in a strong electric field inside the medium electric and heat due to dielectric loss, if the heat is too late loss, the temperature rising terminals, resulting in low molecular weight volatiles The molecular structure of the material will escape physical destruction, finally resulting in insulation breakdown; breakdown factors: temperature - temperature, humidity decreased breakdown voltage material - humidity increases, the breakdown voltage of the voltage drop materials - Role Time voltage action time to grow, the breakdown voltage drop materials Frequency - Frequency increased breakdown voltage drop material thickness material - material thickness increase, cooling unfavorable, the breakdown voltage drops second insulating material for insulation that is in the process of aging equipment operation under the action of various factors insulated terminals, physically, chemically change the cable terminal irreversible, leading to dramatic changes in material electrical, mechanical properties and damage to the insulation aging. Such as: thermal aging, alone or insulating material under the combined effects of heat, oxygen, water, or the product of low molecular weight volatiles escape; generate radical chain reaction so that molecular chains participation; autocatalytic acceleration caused material damage; produce hydrolytic degradation; or produce polymer chain polymerization, leading to performance degradation or complete destruction of the material; in addition electrical aging, due to O3, nitrogen oxides, and other high-speed particles produced by partial discharge and partial discharge caused by dielectric loss resulting increase Materials heat, resulting in material degradation or complete destruction of the current terminals: For circuit installation process needs to be tested circuit, and links to constantly disconnect circuit repeated operation. Thus devised URTK / S test terminals. Terminal is divided into areas of the connector. With the increasingly high degree of industrial automation and industrial control requirements become more stringent, precise dosage terminals gradually rise. With the development of the electronics industry, the use of terminals more and more, and more and more types. Currently the most widely used in addition to the PCB terminals outside. Terminal Model | Chong Xu Song Electronic Products Factory (certified) | Yunfu terminal by Dongguan Shijie Xu Song Chong electronic products factory provided. Dongguan Shijie Xu Song Chong Electronic Products Factory (chuangxs.1688.com) (www.chuangxs.1688.com) is Dongguan, connectors leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Song Chong-wook in electronic products plant leadership with the staff warmly welcome all inquiries negotiations to create electronic products factory Song Chong-wook a better future. You can also access (www.chuangxs.1688.com/supply_details_29087410.html), for more information about the company.