The 18/30kV single core cable series includes Na2XSY, Na2XS2Y and Na2XS(FL)2Y types, all featuring XLPE insulation. Rated at 18/30kV and compliant with German VDE 0276-620 standard, these cables are suitable for medium voltage distribution systems. Na2XSY is standard type, Na2XS2Y with copper tape screen, and Na2XS(FL)2Y features heavy-duty sheath design, allowing selection according to different installation requirements.

The 33kv Na2xsy Cable (1X240/25mm, compliant with EU Standard HD-620, S2:10c) is a high-performance cable specially designed for high-voltage power transmission. With its precise specification parameters, excellent material performance and wide range of applicable scenarios, it plays an important role in the power system.​ In terms of specification parameters, "33kv" clearly indicates the rated voltage of the cable, which belongs to the category of high-voltage cables. It is suitable for high-voltage distribution networks and can realize power transmission between substations, between large power stations and power grids, providing reliable support for long-distance and large-capacity power transmission. In "1X240/25mm", "1X" indicates that the cable is of a single-core structure. This design can effectively reduce electromagnetic interference inside the cable and improve the stability of power transmission, especially suitable for transmitting a single-phase current in a high-voltage system; "240mm" refers to the cross-sectional area of the conductor. The conductor of this specification has a strong current-carrying capacity, which can carry a relatively high current under standard working conditions, meeting the high-power demand of large industrial equipment, urban main power grids and other scenarios; "25mm" may be the thickness of the insulation layer. Sufficient insulation thickness can effectively resist the risk of electrical breakdown under 33kv voltage, ensuring the safety of power transmission.​ "Na2xsy" is the model of the cable, which usually represents specific structural design and performance characteristics. Speculating from the characteristics of similar models, this model may have an aluminum armor layer. Aluminum armor can not only provide good mechanical protection for the cable, resisting external mechanical damages such as extrusion and collision, but also has the advantage of light weight, which is convenient for transportation and installation. At the same time, it has certain corrosion resistance, prolonging the service life of the cable.​ "EU Standard HD-620" indicates that the cable complies with the EU HD-620 standard, which means that it meets the strict requirements of Europe in terms of design, materials, production process, performance testing, etc., ensuring the quality and reliability of the cable, and it can be widely used in the EU and regions that recognize this standard. "S2:10c" may be related to the temperature resistance level of the cable or performance parameters in specific environments. "S2" may represent a specific performance level, and "10c" may indicate that the cable can still maintain good flexibility and electrical performance in a low-temperature environment of -10℃, suitable for laying in cold regions, and not easy to embrittle or degrade in performance due to low temperature.​ In terms of applicable scenarios, relying on its high-voltage characteristics, large cross-sectional area conductor and reliable structural design, the cable is widely used in many fields. In the field of power transmission, it can be used to connect 33kv substations, build urban high-voltage main power grids, and ensure urban power supply; in the industrial field, it is suitable for high-voltage power access in large industrial plants and industrial parks, providing sufficient power for large production equipment and heavy machinery; in the energy field, it can be used in power output lines of new energy projects such as wind farms and solar power stations, efficiently transmitting clean power to the power grid.​ In conclusion, the 33kv Na2xsy Cable (1X240/25mm, compliant with EU Standard HD-620, S2:10c) shows excellent performance in high-voltage power transmission through reasonable specification design, high-quality material selection and strict standard certification, providing a solid guarantee for the safe and stable operation of various high-voltage power projects.