Hebei New Special Cable Standard Fills The Domestic Gap

Steel-core aluminum stranded conductor overhead insulated cable is a kind of special cable. It has the characteristics of simple structure, convenient erection and maintenance, low line cost, large transmission capacity, good electrical conductivity and high tensile strength, which is beneficial to cross rivers and valleys. Laying under special geographical conditions. In the national standard "overhead insulated cables with rated voltages of 1kV and below", only special cables of copper core, aluminum core and aluminum alloy core are involved, and the requirements for steel-core aluminum stranded conductor overhead insulated cables are not required. Due to the lack of national and industry standards, most steel-core aluminum stranded conductor overhead insulated cable manufacturers can only rely on their own enterprise standards to regulate production, and the quality of the products produced varies greatly, which brings great safety hazards to power users and poses serious threats. The operation of the entire transmission grid is safe.

Since the establishment of the standard, the Hebei Provincial Product Quality Supervision and Inspection Institute has carried out extensive interviews and research and technical discussions and product design tests. The final content of the standard content mainly covers scope, normative references, use characteristics, technical requirements, Six aspects, including test methods and acceptance rules. The standard is in line with current national and industry standards, compatible with each other and organically linked, which will further promote the quality improvement of the special cable industry in Hebei Province.