zmscables

Low-voltage power cables are cables with a rated AC voltage of 1kV and below, which are used to transport electrical energy. In practical applications, there are many models of low-voltage cables, and it is very important to distinguish the various models. This article will introduce the basic meaning of low-voltage power cable models and their differentiation methods in detail.   A multi-core cable is a cable with more than one insulated core. Cables play an important role in electronic products and electronic systems, and are the key link to connect the various functions of electronic products, and are widely used in the fields of aerospace and aviation, as well as naval warships. Multi-core cables reduce the skin effect of the cable, thus reducing line losses. Power cables are cables used for the transmission and distribution of electrical energy. Power cables are commonly used in urban underground power grids, power station lead-in lines, internal power supply of industrial an...

This article is enough to read about aluminum alloy cables   Nowadays, aluminum alloy cable technology plays an increasingly important role in the implementation of the national "aluminum instead of copper" construction of a resource-saving society in the field of medium and low-voltage power distribution, and the aluminum alloy cable industry and market have entered a booming stage of development. Aluminum alloy cable technology and origin In 1946, after the end of the Second World War, the United States formulated the technical policy of "aluminum instead of copper" to cope with the shortage of copper resources. However, by the 1960s, early installations of aluminum-core electrical wiring were experiencing frequent fires, basically due to connection failures. The performance deficiencies of aluminum cables caused connection safety hazards to become more and more prominent, with complaints from the power sector and residents. Later, with the development of alloy s...

In recent years, with the rapid development of the city, the subway, stations, hospitals, schools, high-rise residential, and other public facilities to expand the scale of construction, the number of high-rise buildings proliferated, and the city's demand for electricity is rising. In such densely populated key areas, the consequences of a fire are serious.   In 1996, when a serious fire broke out in the Channel Tunnel connecting England and France, the mineral-insulated cable system installed in the tunnel provided emergency lighting for evacuating passengers even after the reinforced concrete and welded rails were destroyed, and withstood the severe test of fire and heat because of the use of mineral insulated cables. Because mineral-insulated cables have quality and performance that are incomparable to ordinary cables, their use is becoming more widespread.   However, according to the analysis of building and safety fire experts, there are still many public facilities sele...