YJV insulation uses high-density polyethylene, and VV cable insulation uses polyvinyl chloride. There are differences between the two in terms of production equipment and processing technology; YJV cables are chemically cross-linked polyvinyl chloride insulated polyvinyl chloride sheathed , is thermosetting plastic,such as armoured cables、xlpe cable、armoured cable 4 core、xlpe cable 120mm. VV cable is PVC insulated PVC sheath,(such as pvc cable flexible 3x1.5mm2、150mm pvc flexible cable )is a thermosetting material just because the material is different, so armoured cable awg18 and PVC power cables allow different long-term working temperatures, YJV cables (YJLV) The rated operating temperature of the electrical conductor of the cable is 90 degrees Celsius, and the temperature does not exceed 250 degrees Celsius when a short-circuit fault occurs (the delay time is less than 5 seconds). VV cable (VLV) type cable electrical conductor operating rated temperature is 70 degrees Celsius, short-circuit fault (continuous time less than 5 seconds temperature does not exceed 160 degrees Celsius. 5 core armoured cable carrying capacity is larger than 6mm PVC cable carrying capacity.
From the perspective of technical and economic data, the basic parameters of the three-core YJV cable are higher than those of the VV cable. YJV is used in industrial buildings, and its cable carrying capacity is larger than that of VV cables. What is more critical is that when monitoring electrical fires, because its insulating material has no available chlorine, it is not easy to generate harmful gases when ignited. So in other words, VV’s energy saving and environmental protection characteristics are worse. Mining cables are suitable for AC 50HZ, rated current 0.6/1kV and below transmission and transformation circuit lines for power distribution. The natural ambient temperature is 25°C, and the working temperature of the cable conductor does not exceed 70°C.
High-voltage cable YJV copper core high-density polyethylene insulated PVC sheathed power engineering cable. fire resistant armoured cable copper core high density polyethylene insulated strip steel armored cable PVC sheathed power engineering cable. NHVV is the same as VV type, suitable for places with fire protection regulations. KVV polyvinyl chloride insulated control cable is mainly used for: signal transmission, control, and precision measurement of household appliances, instrument panels, and power distribution equipment.