The 4c 16mm² 0.6/1kV copper core XLPE insulated underground (UG) power cable is a core equipment in the low-voltage distribution system of power stations, serving as a key carrier for on-site power transmission with high stability, environmental resistance, and safety reliability.​ In terms of specifications, the cable adopts a 4-core design, with each core conductor having a cross-sectional area of 16mm². The copper conductor purity reaches 99.95%, with a single-core diameter of approximately 4.5mm. The stranding pitch is controlled within 18-22 times the diameter, ensuring a balance between flexibility and mechanical strength. The insulation layer is made of XLPE (cross-linked polyethylene) material with a thickness of ≥1.0mm. After chemical cross-linking treatment, it forms a three-dimensional network structure, with a temperature resistance level of 90℃. Under the rated voltage of 0.6/1kV, the insulation resistance is ≥1000MΩ·km, and it can withstand a voltage test of 1.8kV/1min. The overall outer diameter of the cable is about 22-25mm, and the sheath is made of weather-resistant PVC material with a thickness of ≥1.2mm, featuring flame retardancy (complying with IEC 60332-1) and corrosion resistance, suitable for underground direct burial or pipe laying.​ In power station scenarios, its characteristic applications focus on power supply for on-site auxiliary systems: firstly, connecting generator sets and low-voltage distribution cabinets to transmit control power for excitation systems and cooling systems; secondly, providing power distribution support for on-site lighting, communication equipment, water pumps, and other auxiliary facilities; thirdly, serving as an emergency backup line to ensure power supply for key equipment when the main system fails. Due to the underground laying method, it can avoid the impact of mechanical collision, oil pollution, and high-temperature radiation in the complex environment of power stations, especially suitable for humid and dusty areas in coal-fired and gas-fired power stations.​ In terms of materials and processes, the copper conductor undergoes continuous annealing treatment, with a conductivity of 58MS/m, reducing transmission losses; the XLPE insulation layer is added with antioxidants and hydrolysis-resistant agents, maintaining stable performance even in 95% humidity environment; the sheath is mixed with carbon black masterbatch, improving UV aging resistance by 40%, extending the service life to more than 30 years in an underground burial depth of 50cm. During production, the conductor stranding adopts a twist-back process, the insulation extrusion accuracy is controlled within ±0.05mm, and a semi-conductive water-blocking layer is set between the sheath and the insulation layer to prevent moisture infiltration.​ In terms of price, affected by copper price fluctuations, the price per meter is about 45-60 yuan, with copper material cost accounting for 60%-70%. Bulk purchases (over 1000 meters) can enjoy an 8%-12% discount. Imported brands (such as Nexans) have a 25%-30% premium over domestic brands (such as Far East), but are more favored by international power station projects due to passing UL 44 certification.​ To meet the special needs of power stations, the cable also has customized features: it can be equipped with steel tape armoring (thickness ≥0.5mm) to enhance impact resistance, suitable for areas with heavy equipment rolling; halogen-free low-smoke sheath (LSZH) is used to meet environmental protection requirements in confined spaces; metal marking tapes are installed every 100 meters to facilitate underground fault location. The packaging adopts 500-meter wooden reels, with power station-specific test reports (including test data of partial discharge ≤10pC) attached, ensuring compliance with power station grid connection standards.​ In summary, with precise specification adaptation, reliable material performance, and scenario-based design, the cable has become an ideal choice for low-voltage power distribution in power stations, ensuring stable operation of on-site equipment and providing solid support for safe power transmission.