The main difference between mv power cable and low voltage power cables lies in the voltage level and cable structure. The voltage level of mv power cable is between 1kV mv cable and 35kV mv cable, while the voltage level of low voltage power cables is below 1kV.
The voltage level of mv power cable is usually between 1kV and 35kV, mainly used for transmission and distribution. Due to its high voltage level, the insulation thickness and structure of medium voltage cables are relatively complex to withstand high voltages and currents. The insulation assessment points of medium voltage wire mainly include the withstand voltage strength, heat resistance, and stability in long-term use of insulation materials.
The voltage level of low-voltage power cables is below 1kV, mainly used for supplying power to households and industrial equipment. Due to the low voltage, the insulation thickness and structure of low-voltage cables are relatively simple, and the main assessment points include the withstand voltage strength and moisture resistance of the insulation material.
Structurally, mv power cable typically consist of multiple layers, including conductors, insulation layers, shielding layers, and sheaths, to ensure good electrical performance and mechanical strength. The structure of low-voltage power cable is relatively simple, generally only consisting of conductors, insulation layers, and sheaths, without shielding layers.
In terms of production technology, medium voltage cables require stricter manufacturing processes to ensure the uniformity and strength of the insulation layer, while the production process of low voltage cables is relatively simple, mainly focusing on the stability and moisture resistance of the insulation material.
In summary, there are significant differences between mv power cables and low voltage power cables in terms of voltage levels, cable structures, and production processes, which directly affect their insulation assessment points and requirements.
