PVC insulated and PVC sheathed Avvg power cables, including the two common specifications of 3X35 1X16 and 3X16+1X10, are basic cable products widely used in industrial and civil power distribution systems. Characterized by the dual application of PVC materials, they combine economy, practicality, stability and reliability, and are suitable for various medium and low-power power transmission scenarios.​ In terms of specification parameters, both specifications adopt a four-core structure. "3X35 1X16" means 3 main cores with a cross-sectional area of 35mm² and 1 neutral core with 16mm²; "3X16+1X10" consists of 3 main cores with 16mm² and 1 neutral core with 10mm². This structural design is specially made for three-phase four-wire systems. The main cores are responsible for transmitting electric energy, and the neutral core balances the three-phase current to ensure the stable operation of the system. In terms of current-carrying capacity, at an ambient temperature of 25℃, the long-term allowable current-carrying capacity of the 35mm² core is about 130A, corresponding to a power of about 28kW; the 16mm² core has a current-carrying capacity of about 85A, with a power of about 18.7kW; the 10mm² core has a current-carrying capacity of about 65A, with a power of about 14.3kW. The rated voltage of the cable is 0.6/1kV, suitable for low-voltage distribution networks. The outer diameters are about 38mm (3X35 1X16) and 30mm (3X16+1X10) respectively. The thickness of the PVC insulation layer is 1.6mm and 1.4mm respectively, and the sheath thickness is 2.0mm, meeting the requirements of mechanical protection and insulation.​ In terms of materials, the conductor is made of high-purity electrolytic copper with a purity of ≥99.9%, ensuring excellent conductivity, reducing transmission loss, and having good ductility for easy bending and laying. Both the insulation layer and the sheath are made of polyvinyl chloride (PVC) material. The PVC insulation layer has moderate insulation resistance and corona resistance, and can work for a long time in an environment of 70℃, with short-term overload tolerance of 80℃; the PVC sheath, relying on high mechanical strength, resists external extrusion, wear and general chemical corrosion, and has low processing cost, making the cable overall economical. However, PVC materials will release hydrogen chloride gas at high temperatures, so the cable is more suitable for non-fire-prone areas.​ In terms of characteristic uses, the 3X35 1X16 specification is suitable for medium-sized power consumption scenarios: such as the workshop distribution trunk lines in small and medium-sized factories, connecting CNC machine tools, blowers and other equipment; the main distribution circuits in multi-storey office buildings, supplying power for air conditioners, elevators, etc.; the building incoming lines in residential quarters, meeting the simultaneous power consumption needs of multiple households. The 3X16+1X10 specification is mostly used for small-scale power distribution: such as internal wiring in shops and small offices, connecting lighting, computers and other equipment; branch circuits in civil buildings, supplying power to kitchens, living rooms and other areas; temporary power supply lines in outdoor small landscape projects and temporary construction sites.​ Compared with other types of cables, the core advantages of this Avvg cable lie in economy and versatility. The low cost of PVC materials and mature processing technology make the cable price affordable, suitable for large-scale laying; at the same time, its simple structure and convenient laying allow for exposed laying, concealed laying or pipe installation, adapting to various environments. However, it should be noted that its flame retardancy and temperature resistance are weak, so it is not suitable for high-temperature, flammable and explosive places or places with extremely high environmental protection requirements.​ In summary, the PVC insulated and PVC sheathed Avvg power cable (3X35 1X16, 3X16+1X10), with its economical and practical characteristics, has become an ideal choice for medium and low-power low-voltage distribution scenarios, providing stable power transmission support for industrial production and daily life.