This paper introduces copper-core PE-insulated Ttu 0.6kV cables, covering 300 Mcm, 500 Mcm, and 250 Mcm specifications, suitable for low-voltage distribution scenarios, especially outdoor and humid environments.​ The conductor is made of high-purity electrolytic copper through compact stranding technology, featuring excellent conductivity, low power loss, and high mechanical strength, capable of withstanding tension and bending during laying. The insulation layer is polyethylene (PE), with excellent weather resistance, corrosion resistance, and insulation performance. It can withstand a long-term temperature of 70℃ and 90℃ for short-term overload. Under 0.6kV voltage, the insulation resistance remains stable above 1000MΩ, effectively resisting moisture, ultraviolet rays, and chemical erosion.​ Specification differences adapt to different loads: 500 Mcm has a current-carrying capacity of about 450A, suitable for large outdoor distribution trunk lines, such as industrial park main incoming lines; 300 Mcm has a current-carrying capacity of about 350A, ideal for power supply of medium-sized outdoor equipment, such as municipal street lamp system main lines; 250 Mcm has a current-carrying capacity of about 280A, mostly used in branch lines and small outdoor facilities, such as community distribution branch lines. The overall structure of the cable is compact, with an outer diameter increasing with specifications (about 55-70mm), supporting direct burial, pipe threading, and overhead laying, providing an efficient and durable solution for low-voltage outdoor power distribution.

Flexible Core Copper Electrical Wire Welding Cable (16mm-95mm)（English Part）​ This flexible core copper electrical wire welding cable, available in 16mm, 25mm, 35mm, 50mm, 70mm, 95mm specifications, is engineered for high-performance welding applications, combining exceptional flexibility with robust conductivity. Crafted from high-purity copper, the cable ensures efficient current transmission, critical for maintaining stable arc performance in welding processes across industrial, construction, and manufacturing settings.​ The flexible core design, featuring multiple fine copper strands, allows easy maneuverability even in tight spaces or around complex workpieces, reducing operator fatigue during prolonged use. With a range of cross-sectional sizes, it caters to varying current demands: smaller 16mm-35mm cables suit medium-duty tasks like metal fabrication, while larger 50mm-95mm options handle heavy-duty welding of thick metals in shipbuilding or structural engineering.​ Encased in a durable, heat-resistant jacket, the cable withstands high temperatures, sparks, and mechanical abrasion, ensuring longevity in harsh welding environments. Compliant with industry standards for welding cables, it guarantees reliable performance, making it a trusted choice for professional welders and industrial operations requiring consistent, high-power electrical connectivity.

Armoured 4+1 5 Core 25mm², 35mm², 50mm² XLPE Cable: PVC Insulated Electrical Copper, CE Standard YJY, YJV22, YJV32 Power Cable​ Our armoured 4+1 5 core XLPE power cables, available in 25mm², 35mm², and 50mm², combine advanced materials and robust design to meet CE standards, making them ideal for demanding electrical distribution systems. These cables feature copper conductors, XLPE insulation, and PVC outer sheathing, with armouring options (YJV22, YJV32) for enhanced durability in industrial, commercial, and infrastructure projects.​ The XLPE insulation delivers superior thermal stability and low dielectric loss, ensuring efficient power transmission even under high loads and temperature fluctuations. This insulation resists moisture, chemicals, and aging, critical for long-term reliability in harsh environments. The 4+1 core configuration—four live conductors plus a neutral/earth core—supports balanced three-phase power distribution, simplifying installations in systems requiring grounded or neutral connections.​ Armouring (steel tape for YJV22, steel wire for YJV32) provides exceptional mechanical protection against impact, abrasion, and external pressure, making these cables suitable for direct burial, conduit installation, or exposed applications. The PVC outer sheath adds further resistance to UV radiation, ozone, and industrial contaminants.​ Compliant with CE standards and available in YJY (non-armoured), YJV22 (steel tape armoured), and YJV32 (steel wire armoured) variants, these cables cater to diverse needs: 25mm² for medium loads, 35mm² for higher currents, and 50mm² for heavy-duty power distribution. They excel in connecting machinery, switchgear, and building networks, ensuring safe, efficient, and long-lasting performance.

The 600V THHN/THWN-2 14AWG-400MCM copper electrical cable is a high-performance electrical wire. With its wide range of specifications, excellent environmental adaptability, and diverse application scenarios, it plays an important role in wiring projects in construction, industrial, commercial and other fields, becoming a preferred solution for many wiring projects.​ In terms of specification parameters, the cable has a wide range of conductor sizes, ranging from 14AWG to 400MCM (thousand circular mils), which can meet the power transmission needs of different power equipment. The 14AWG conductor has a diameter of about 1.63mm and a current-carrying capacity of approximately 20 amps, and is often used in light-load electrical scenarios such as lighting circuits and small household appliances; the 400MCM conductor has a cross-sectional area of 202 square millimeters and a current-carrying capacity of more than 600 amps, suitable for heavy-duty power transmission systems such as large industrial motors and distribution trunk lines. Its rated voltage is 600V, which complies with relevant standards for low-voltage power distribution and can match the voltage requirements of most civil and industrial equipment.​ In terms of material and performance, this cable shows significant advantages. The conductor is made of high-purity electrolytic copper with a purity of more than 99.95%, which not only has excellent conductivity and can effectively reduce energy loss during power transmission, but also has good ductility and fatigue resistance, and is not easy to break during multiple bending and installation operations. The insulation layer is made of polyvinyl chloride (PVC) or cross-linked polyethylene (XLPE), and after special processing, it has obtained THHN/THWN-2 dual certification. Among them, the THHN certification ensures that the cable can withstand a high temperature of 90°C in a dry environment, making it suitable for wiring in bridge and conduits inside buildings; the THWN-2 certification allows the cable to be used in humid environments (including water) with a temperature resistance level of 90°C, and also has a certain chemical corrosion resistance, which can resist the erosion of oil stains, mild acids, alkalis and other substances.​ The wide range of application scenarios is another prominent feature of this cable. In the construction field, it is often used in lighting systems, socket circuits of residential and commercial buildings, and power supply wiring of central air conditioning and other equipment; in industrial scenarios, it can be used as motor leads and connecting cables inside control cabinets, especially suitable for humid areas or areas with short-term flooding risks, such as food processing workshops and car washes; in outdoor applications, it can be used in open-air facilities such as garden lighting and small pump stations with waterproof connectors. In addition, the flame retardant performance of the cable meets UL standards, which can slow down the burning speed in case of fire, buying valuable time for personnel evacuation and emergency treatment.​ In terms of installation and maintenance, the cable has good flexibility, which is convenient for threading in narrow spaces or bridge laying, and the surface of the insulation layer is smooth, reducing the frictional resistance during installation. In the long-term use process, the oxidation resistance of the copper conductor and the aging resistance of the insulation layer make the service life of the cable reach more than 15 years, thus reducing the later replacement cost.​ In general, the 600V THHN/THWN-2 14AWG-400MCM copper electrical cable provides a safe and efficient solution for various electrical wiring needs with its comprehensive specification coverage, reliable material performance and strong multi-scenario adaptability.

PVC insulated copper cables (4mm², 6mm², 16mm², 25mm²) are core wires designed specifically for residential electrical wiring. With high-purity electrolytic copper as conductors and polyvinyl chloride (PVC) as insulation layers, they are widely used in household lighting, socket power supply, and high-power appliance connections due to their complete specifications, stable performance, and moderate cost, providing safe and reliable transmission guarantees for residential power systems.​ In terms of specification design, this series of cables covers common cross-sections from 4mm² to 25mm², accurately matching different power load requirements: 4mm² cables are suitable for medium-power equipment such as wall-mounted air conditioners and electric water heaters, with a continuous current-carrying capacity of up to 25A (at an ambient temperature of 30℃); 6mm² cables can carry 32A current, adapting to high-power appliances such as cabinet air conditioners and ovens; 16mm² and 25mm² cables are used for residential main incoming lines and main trunk lines of distribution boxes, with current-carrying capacities of 70A and 90A respectively, which can meet the load requirements of simultaneous power consumption in multiple areas. This stepped specification design not only avoids material waste in low-load scenarios but also ensures the power supply safety of high-power equipment.​ In terms of materials, the conductors are made of high-purity stranded copper with a conductivity of over 98%, which not only reduces current transmission loss but also improves flexibility through multi-strand copper wire stranding, facilitating bending and laying in narrow spaces such as wall embedding and floor pipe wear，reducing construction difficulty. The insulation layer is made of rigid PVC material with a temperature resistance of 60-70℃, which has good insulation resistance (≥100MΩ) and voltage resistance performance (can withstand 2000V AC voltage for 1 minute without breakdown). It can effectively isolate current, resist daily wear and minor chemical corrosion, and has a flame retardant rating of UL94 V-0, which is not easy to spread when exposed to fire, adding a line of defense for residential fire safety.​ In residential wiring, the application scenarios of this series of cables have clear divisions of labor: 4mm² and 6mm² cables are mostly used in branch circuits, such as bedroom sockets and dedicated lines for kitchen appliances; 16mm² cables are often used for main trunk lines from the main distribution box to the distribution boxes on each floor; 25mm² cables are adapted to the main incoming lines of villas and large-sized residences, ensuring stable distribution of incoming power. The color of its PVC insulation layer follows international specifications: phase wires are brown/black, neutral wires are blue, and ground wires are yellow-green two-color. The intuitive color distinction can reduce wiring misoperations and improve construction efficiency.​ The product strictly complies with standards such as GB 5023.3-2008 "Polyvinyl Chloride Insulated Cables with Rated Voltage up to 450/750V" and has passed multiple tests such as insulation thickness, conductor resistance, and aging resistance to ensure the quality consistency of each meter of cable. Whether it is pre-embedded wiring in new residences or line renovation of old houses, this series of cables can be an ideal choice for residential electrical systems with the advantages of strong adaptability, convenient installation, and a service life of more than 15 years.