The development of China Insulator industry

    The great development of China's power industry to the insulator industry has brought unprecedented opportunities, the industry should seize the rare opportunity to rely on technological progress, the development of new varieties, strengthening quality management, to meet the needs of today's power industry, especially high-grade hollow market demand for porcelain insulator and casing products. Development of insulators industry better adapt to the requirements of network development, product quality has been greatly improved, insulator manufacturing reached the international advanced level, operational performance is getting better. Domestic brittle fracture of composite insulators few anatomical examination also found that the mandrel fracture occurred in the exposed parts are not core rod stress concentration, and is located near the ends of the jacket with a gold seal. Thus, the composite insulators mandrel acid rain due to the direct effect of foreign fracture occurs rarely.

    At present the failure rate of the insulator industry are: the insulator is ten thousandths (high voltage section million), glass and porcelain insulators for the ten thousandths; arrester relatively stable operating conditions; struts and hollow insulators made great progress; more casing products issues. To this end, tinglu Ye respective manufacturing enterprises should further strengthen quality control, particularly control of design, materials and process; and strengthening the sound, learning and research combined, to accelerate the development of new products continue to meet the needs of grid construction; strengthen communication between supply and demand, together to build a strong and smart grid services. The whole industry is still in the process of rapid development, there are some constraints.

    Problems and solutions both existing insulators industry: First, the concentration of small industry, small-scale enterprises, the industry should be addressed because the concentration of small and cause "bulk" of the problem as soon as possible; the second is to work hard to develop suitable basic material promote technological progress. Insulators is very small capacitance interstage pole insulation, the insulation part of the voltage distribution is very uneven. Although the product is equipped with wire ends equalizing ring, but it is still quite large voltage gradient, the end fittings during normal operation, although not appear corona, but the field has been almost the same intensity and corona field. In the end there is a strong product leads the highest parts of the field, the high-field accelerates saturated aqueous media at a bare mandrel along the glass fibers with epoxy resin to spread good permeability low concentrations of the site, this way epoxy resins can not even remnants of anhydride curing press has accelerated the penetration of water molecules, so that the field strength mandrel rim has a high presence of an aqueous medium.