U1000 R2X 3×1.5mm², 3×2.5mm² PVC power station cables and 1000V XLPE cables are two types of key cable products suitable for power stations and low-voltage distribution systems. They have reliable electrical performance and environmental adaptability, playing an important role in power transmission, equipment connection and other scenarios.​ In the U1000 R2X series PVC power station cables, the 3×1.5mm² cable is composed of 3 high-purity copper conductors with a cross-sectional area of 1.5mm². Each core contains 19 copper wires with a diameter of 0.3mm, with a stranding pitch of 6-8mm. At 20℃, the DC resistance of a single core is ≤12.1Ω/km. The insulation layer is made of PVC material, with a thickness of 0.7-0.9mm, an insulation resistance of ≥100MΩ·km, and a long-term operating temperature of -15℃ to 70℃. The sheath is also made of PVC, with a thickness of 0.6-0.8mm, a tensile strength of ≥12MPa, an oxygen index of ≥28, an overall outer diameter of about 7-9mm, and a current-carrying capacity of 16-18A in air. The 3×2.5mm² cable has 19 copper wires with a diameter of 0.4mm per core, a single-core DC resistance of ≤7.41Ω/km, an insulation thickness of 0.8-1.0mm, a sheath thickness of 0.7-0.9mm, an outer diameter of about 9-11mm, and a current-carrying capacity of 24-26A. Other properties are basically the same as those of the 3×1.5mm² cable. Both cables adopt a circular structure, with specifications, voltage and other marks printed on the surface, suitable for control circuits and auxiliary equipment power supply in power stations, such as connecting small pumps and lighting systems.​ The 1000V XLPE cable uses cross-linked polyethylene (XLPE) as the insulation layer, with better heat resistance and insulation performance. Taking the common 3×1.5mm² and 3×2.5mm² specifications as examples, the conductor parameters are consistent with those of PVC cables of the same specification. However, the XLPE insulation layer has a long-term operating temperature of 90℃, can withstand 250℃ during short-term overload (within 5 seconds), with an insulation resistance of ≥1000MΩ·km, a dielectric loss tangent of ≤0.003, and a breakdown strength of ≥20kV/mm. The sheath is mostly made of PE or PVC, with better weather resistance and mechanical strength, suitable for main circuits of power stations, outdoor laying and other scenarios with high requirements for insulation and heat resistance.​ In terms of price, the market unit price of U1000 R2X 3×1.5mm² PVC cable is about 9-13 yuan/meter, and 3×2.5mm² is about 13-17 yuan/meter; the unit price of 1000V XLPE 3×1.5mm² cable is about 15-20 yuan/meter, and 3×2.5mm² is about 20-25 yuan/meter. The price is significantly affected by fluctuations in copper prices and raw materials. Bulk purchases (over 1000 meters) can enjoy a 5%-8% discount. Due to higher material and process costs, XLPE cables are about 60%-80% more expensive than PVC cables of the same specification, but they have a longer service life (≥30 years), and their comprehensive cost performance is more prominent in high-load scenarios.​ In summary, the two types of cables have their own focuses: PVC cables have low cost and are suitable for conventional environments; XLPE cables have better performance and are suitable for high-requirement scenarios. The price list can provide a clear cost reference for power station construction, equipment upgrading, etc., helping users choose suitable products according to actual needs.