Yjv Cable Pure Copper PVC XLPE Armored Cable 3/4/5/6 Core Electrical Cables 25mm/35mm/50mm/70mm/90mm/120mm/150mm/180mm

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2025-09-12 07:48:25

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PENDAHULUAN PRODUK

1. Product-Specific Details

1.1 Specifications and Parameters

YJV cables, featuring Pure Copper Conductors, XLPE insulation, armored protection, and PVC Sheathing, come with a comprehensive set of specifications and parameters that make them suitable for a wide range of electrical applications. These parameters are carefully engineered to ensure optimal performance, safety, and durability.

The conductor sizes available in YJV cables range from 25mm² to 180mm². Each size has specific current-carrying capacities that cater to different power requirements. For instance, the 25mm² conductor can handle a maximum current of 85A under normal operating conditions (ambient temperature of 40°C), while the 35mm² conductor supports up to 110A. As the conductor size increases, the current-carrying capacity rises: 50mm² (135A), 70mm² (170A), 90mm² (205A), 120mm² (240A), 150mm² (275A), and 180mm² (310A). These values ensure that the cables can accommodate various loads, from small industrial machinery to large-scale power distribution systems.

The cables are designed to operate at voltage levels up to 35kV, with options for low-voltage (up to 1kV) and medium-voltage (1kV to 35kV) applications. This wide voltage range makes them versatile, suitable for both indoor distribution in commercial buildings and outdoor transmission in infrastructure projects.

The Copper Conductors are stranded, with the number of strands increasing with conductor size to maintain Flexibility. For example, the 25mm² conductor consists of 37 strands of 0.85mm diameter Copper Wires, while the 180mm² conductor is composed of 127 strands of 1.2mm diameter wires. This stranded design enhances flexibility, allowing the cables to be bent and routed easily during installation. The copper used has a purity of 99.95% or higher, ensuring a conductivity of ≥98% IACS, which minimizes energy loss during power transmission.

The XLPE insulation has a thickness that varies with conductor size and voltage rating. For low-Voltage Cables (up to 1kV), the insulation thickness ranges from 0.8mm (25mm²) to 1.4mm (180mm²). For medium-voltage cables (up to 35kV), the insulation thickness increases to 3.4mm to 8.0mm to withstand higher electrical stress. XLPE insulation has a dielectric strength of ≥20kV/mm, ensuring effective electrical isolation. It can operate at continuous temperatures up to 90°C and withstand short-circuit temperatures of 250°C for up to 5 seconds, making it suitable for high-heat environments.

The armored layer, made of galvanized Steel Tape or wire, has a thickness of 0.3mm to 0.5mm. This layer provides mechanical protection, with a tensile strength of ≥300MPa, ensuring the cable can withstand impacts and abrasion. The armor also has a breaking force of ≥1.5kN, enhancing the cable’s resistance to pulling forces during installation.

The outer PVC sheath has a thickness of 1.8mm to 2.5mm, depending on the cable size. It has a tensile strength of ≥12MPa and an elongation at break of ≥150%, ensuring flexibility and durability. The sheath is resistant to a wide range of chemicals, including acids, alkalis, and oils, and has a water absorption rate of ≤0.5% by weight, making it suitable for wet environments.

The overall diameter of the cables varies with conductor size and core count. For a 3-core 25mm² cable, the overall diameter is approximately 28mm, while a 6-core 180mm² cable has an overall diameter of around 80mm. The weight per meter ranges from 2.5kg (3-core 25mm²) to 18kg (6-core 180mm²), which influences handling and installation requirements.

The minimum bending radius for fixed installations is 12 times the overall diameter, and for flexible installations, it is 20 times the overall diameter. This allows for easy routing in tight spaces without damaging the cable.

1.2 Special Purpose

YJV cables are designed to serve a variety of special purposes across different industries, thanks to their unique combination of features. Their versatility, durability, and high performance make them suitable for numerous critical applications.

In industrial facilities, YJV cables are widely used for powering heavy machinery, such as motors, pumps, and compressors. The 70mm² to 180mm² conductors are ideal for large industrial equipment that requires high current levels. The armored layer protects the cables from damage caused by mechanical impacts, vibrations, and contact with sharp objects in factory environments. For example, in automotive manufacturing plants, YJV cables with 4 or 5 Cores are used to connect production lines to the main power supply, ensuring reliable operation of robotic arms and assembly equipment. The XLPE insulation’s ability to withstand high temperatures is crucial in these settings, where equipment generates significant heat.

Commercial buildings, including shopping malls, hospitals, and office complexes, rely on YJV cables for their power distribution systems. The 25mm² to 50mm² 3-core or 4-Core Cables are commonly used to supply electricity to lighting systems, HVAC (heating, ventilation, and air conditioning) units, and office equipment. In hospitals, where uninterrupted power is vital, YJV cables with 5 cores (including an earth conductor) are used to ensure safe and reliable power distribution to critical areas such as operating rooms and intensive care units. The PVC sheath’s resistance to moisture and chemicals makes these cables suitable for installation in basements, ceilings, and other enclosed spaces.

Infrastructure projects, such as airports, railways, and metro systems, utilize YJV cables for their ability to withstand harsh outdoor conditions. The 90mm² to 150mm² 3-core or 6-core cables are used to power signaling systems, lighting, and escalators in airports. Railways rely on YJV cables for trackside power distribution, where the armored layer protects against damage from trains, weather, and wildlife. The cables’ UV resistance and ability to operate in a wide temperature range (-40°C to 90°C) make them suitable for outdoor installation in diverse climates, from freezing winters to hot summers.

Renewable energy plants, including solar and wind farms, depend on YJV cables for efficient power transmission. In solar farms, 4-core or 5-core YJV cables (50mm² to 120mm²) connect solar panels to inverters and then to the grid. The XLPE insulation’s low dielectric loss ensures minimal energy loss during transmission, maximizing the efficiency of the solar power system. In wind farms, the cables are used to connect wind turbines to the collection substation, with the armored layer protecting against the harsh conditions of high altitudes and strong winds.

Underground and direct burial applications, such as urban utility networks and underground power distribution, benefit greatly from YJV cables. The armored layer and PVC sheath provide excellent protection against soil pressure, moisture, and rodent attacks. 3-core or 4-core cables with sizes ranging from 35mm² to 180mm² are used for underground distribution lines, ensuring reliable power supply to residential and commercial areas. For example, in city centers where Overhead Lines are impractical, YJV cables are buried underground to transmit power from substations to transformers, with their durable construction ensuring a long service life with minimal maintenance.

Data centers, which require stable and high-capacity power supply, use YJV cables to connect backup generators and UPS (uninterruptible power supply) systems to the main electrical panel. The 6-core cables (70mm² to 150mm²) allow for multiple circuits, ensuring redundancy and minimizing downtime in case of a power failure. The cables’ ability to handle high currents and their fire resistance (compliant with IEC 60332-3) make them a safe choice for these critical facilities.

1.3 Materials and Styles

The materials and styles of YJV cables are carefully selected to enhance their performance, durability, and suitability for various applications. Each component is chosen based on its specific properties, ensuring the cable meets the demands of different environments.

The conductors are made of high-purity electrolytic copper, which undergoes a refining process to remove impurities. This high purity ensures excellent electrical conductivity, which is essential for efficient power transmission. Copper is also highly ductile, allowing it to be drawn into fine wires that can be stranded together. The stranded design improves flexibility, making the cable easier to install in tight spaces and reducing the risk of breakage due to bending or vibration. Unlike Aluminum Conductors, copper has better corrosion resistance, ensuring a longer service life, especially in humid or corrosive environments.

XLPE (cross-linked polyethylene) is used as the Insulation Material due to its superior properties compared to traditional PVC Insulation. XLPE is a thermosetting polymer that undergoes a cross-linking process, which creates a three-dimensional molecular structure. This structure gives XLPE excellent thermal stability, allowing it to operate at higher temperatures without melting or degrading. It also has low water absorption, making it resistant to moisture ingress, which is crucial for outdoor and underground applications. XLPE is resistant to chemicals, UV radiation, and aging, ensuring the insulation remains effective over time. Its low dielectric loss ensures minimal energy loss during power transmission, making it ideal for long-distance applications.

The armored layer is typically made of galvanized steel tape or wire. Galvanization involves coating the steel with a layer of zinc, which provides corrosion resistance, preventing the armor from rusting in wet or humid environments. Steel tape armor is formed by wrapping a thin steel strip around the cable, providing a smooth, continuous layer of protection against impacts and abrasion. Steel wire armor consists of multiple steel wires twisted around the cable, offering higher tensile strength and resistance to pulling forces, making it suitable for applications where the cable may be subjected to heavy loads during installation.

The outer sheath is made of PVC (polyvinyl chloride), a durable and flexible thermoplastic material. PVC is chosen for its resistance to moisture, chemicals, and abrasion, protecting the inner components of the cable from environmental damage. It is also flame-retardant, meeting standards such as IEC 60332-1, which reduces the spread of fire in case of a cable fire. PVC is easy to process and cost-effective, making it a practical choice for the outer sheath. The sheath is available in different colors, such as black or gray, for easy identification in electrical systems.

YJV cables are available in 3, 4, 5, or 6-core styles, each designed for specific electrical systems. 3-core cables are used in three-phase power systems where a neutral conductor is not required, such as in industrial machinery. 4-core cables include a neutral conductor, making them suitable for three-phase systems with single-phase loads, such as commercial buildings. 5-core cables add an earth conductor, providing extra safety in applications where grounding is essential, such as hospitals and data centers. 6-core cables are used in complex systems that require multiple circuits, allowing for efficient power distribution in large facilities.

The cables have a round cross-section, which ensures uniform distribution of electrical stress and mechanical strength. The cores are twisted together to form a Compact Cable, with fillers used to maintain a round shape and provide additional protection. This design also helps in reducing the overall diameter of the cable, making it easier to install in conduit systems.

1.4 Production Process

The production of YJV cables involves several precise steps, each designed to ensure the quality and performance of the final product. From raw material preparation to final testing, every stage is carefully controlled to meet industry standards.

Conductor Manufacturing: The process starts with high-purity copper rods, which are heated and drawn through a series of dies to reduce their diameter. This drawing process is done in multiple stages, with each die reducing the wire diameter incrementally. The result is fine copper wires with diameters ranging from 0.1mm to 1.2mm, depending on the conductor size. These wires are then stranded together using a stranding machine. The stranding process involves twisting the wires in a specific pattern (concentric or bunch stranding) to form a Flexible Conductor. The number of strands varies with the conductor size, with larger conductors requiring more strands. After stranding, the conductors are annealed, a heat treatment process that softens the copper, improving its ductility and flexibility.

XLPE Insulation Extrusion: Each Stranded Copper Conductor is insulated with XLPE using an extrusion process. The XLPE compound is fed into an extruder, where it is melted and mixed. The molten XLPE is then forced through a die that shapes it around the conductor, forming a uniform insulation layer. The thickness of the insulation is carefully controlled by adjusting the extruder speed and die size. After extrusion, the Insulated Conductors undergo a cross-linking process. This can be done using either chemical cross-linking (where the XLPE is mixed with a cross-linking agent and heated in a vulcanization tube) or radiation cross-linking (where the insulation is exposed to electron beams). Cross-linking transforms the XLPE into a thermosetting material, enhancing its thermal and mechanical properties.

Cabling: The insulated conductors are then twisted together to form the cable core. The number of cores (3, 4, 5, or 6) depends on the cable design. During cabling, fillers (made of PVC or polypropylene) are added between the cores to ensure a round and stable cross-section. A binder tape (typically polyester) is wrapped around the twisted cores to hold them together and provide additional protection.

Armoring: The cable core is then armored with galvanized steel tape or wire. For steel tape armor, a continuous strip of galvanized steel is wrapped around the cable core, with overlapping edges to ensure complete coverage. For steel wire armor, multiple galvanized steel wires are twisted around the cable core in a helical pattern. The armoring process is done using specialized machinery that ensures uniform application and proper tension.

Sheathing: The Armored Cable is then covered with a PVC outer sheath. The PVC compound is extruded over the armor using an extrusion machine, forming a continuous and uniform layer. The thickness of the sheath is controlled to meet the specified requirements. After extrusion, the cable is cooled in a water bath to solidify the PVC.

Testing: The finished cable undergoes a series of rigorous tests to ensure quality. Electrical tests include insulation resistance testing (using a megohmmeter), voltage withstand testing (applying AC or DC voltage to check for breakdown), and partial discharge testing. Mechanical tests include tensile strength and elongation tests on the sheath and insulation, and impact and crush tests on the armored layer. Dimensional checks are also performed to ensure the conductor size, insulation thickness, and overall diameter meet specifications.

Cutting and Spooling: After passing all tests, the cable is cut into standard lengths (typically 100 meters, 200 meters, or 500 meters) and wound onto wooden or steel spools. Each spool is labeled with information such as the cable type, conductor size, number of cores, voltage rating, length, batch number, and production date.

2. General Product Information

2.1 Packaging

The packaging of YJV cables is designed to protect them during storage, transportation, and handling, ensuring they reach customers in optimal condition.

YJV cables are typically wound onto large wooden or steel spools. Wooden spools are cost-effective and suitable for most applications, while steel spools are used for heavier cables or long lengths (500 meters or more) due to their higher strength. The spools have flanges with diameters ranging from 60cm (for small cables) to 200cm (for large cables), preventing the cable from slipping off during transportation.

Each spool is wrapped with a layer of plastic film to protect the cable from dust, dirt, and moisture. For outdoor storage or long-distance shipping, an additional layer of waterproof tarpaulin is wrapped around the spool to provide extra protection against rain, snow, and UV radiation. This ensures that the PVC sheath and XLPE insulation do not degrade due to exposure to the elements.

The spools are labeled with detailed information, including the product name (YJV cable), conductor size, number of cores, voltage rating, length of the cable, batch number, production date, and compliance with relevant standards (such as IEC 60502 and GB/T 12706). This information helps customers identify the correct cable for their application and verify its specifications.

For small orders or retail sales, the cable may be cut into shorter lengths (e.g., 10 meters, 20 meters) and packaged in sealed plastic bags. These bags are made of thick, transparent polyethylene, allowing customers to inspect the cable without opening the package. The bags are also labeled with the same product information as the spools.

Bulk shipments of YJV cables are palletized for efficient transportation. Multiple spools are stacked on a wooden pallet, which is then wrapped with stretch film to secure the load. The pallet dimensions are standardized (typically 120cm x 80cm) to fit into shipping containers and trucks. Each pallet is labeled with the total number of spools, total length of cable, gross weight, and destination address, facilitating easy handling and inventory management.

2.2 Transportation

Transporting YJV cables requires careful planning to ensure they arrive at their destination in good condition, considering their size, weight, and sensitivity to damage.

For domestic transportation, trucks with flatbed or enclosed trailers are used. Enclosed trailers are preferred for long distances or in adverse weather conditions, as they protect the cables from rain, snow, and direct sunlight. The spools are loaded onto the trailer using forklifts or cranes, ensuring they are positioned securely to prevent movement during transit. They are secured to the trailer using steel straps or chains, which are tightened around the spools and anchored to the trailer’s floor or walls. Wooden blocks or chocks are placed between spools to prevent them from rolling or colliding with each other, which could damage the cable or the spool flanges.

For long-distance or international transportation, sea freight is the most common and cost-effective option. The palletized spools are loaded into shipping containers, which are either 20-foot or 40-foot in size. The containers are inspected for moisture and damage before loading to ensure the cables are not exposed to water or contaminants. The pallets are secured inside the container using dunnage bags or wooden braces to prevent shifting during transit. This is particularly important for maintaining the integrity of the armored layer and outer sheath, as excessive movement could cause abrasion or deformation.

Air freight is reserved for urgent orders, though it is less common due to the cables’ weight and size. For air transport, smaller spools or cut lengths are used to meet weight restrictions. Packages are labeled with “Heavy Cargo” stickers to ensure proper handling, and temperature monitoring devices may be included to track exposure to extreme heat or cold, which could affect the PVC sheath’s properties.

During transportation, the cables must be protected from extreme temperatures. PVC sheathing can become brittle in freezing conditions (below -15°C) and may soften in high heat (above 60°C), so climate-controlled containers or trailers are used in regions with extreme weather. Additionally, the cables are kept away from sharp objects and corrosive substances to prevent damage to the sheath and armor.

2.3 Delivery

The delivery process for YJV cables is designed to be efficient and reliable, ensuring customers receive their orders on time and in pristine condition.

Upon receiving an order, the supplier verifies the specifications (conductor size, core count, length) and checks inventory. In-stock items are processed within 1–2 business days, while custom orders (e.g., non-standard lengths or specialized armoring) may take 5–10 business days to manufacture and prepare.

Customers are provided with a detailed delivery timeline, including the expected dispatch date and estimated arrival. For domestic deliveries, ground shipping typically takes 3–7 business days, depending on the distance from the warehouse. International shipments via sea freight can take 2–6 weeks, while air freight reduces this to 3–5 business days for urgent orders.

Once dispatched, customers receive a tracking number via email or SMS, allowing them to monitor the shipment’s progress through the carrier’s online portal. Tracking updates include departure and arrival times at hubs, customs clearance status (for international orders), and the final delivery window.

For large or heavy spools, the supplier coordinates with the customer to schedule a delivery appointment. This ensures that the customer has adequate space and equipment (e.g., forklifts) to unload the shipment. Delivery drivers are trained to handle oversized cargo, using liftgates or cranes when necessary to safely transfer spools from the truck to the customer’s premises.

Upon delivery, the customer is required to inspect the shipment for visible damage. This includes checking for dents in spool flanges, tears in the plastic wrapping, or cuts in the cable sheath. Any damage must be documented on the delivery receipt, and the supplier must be notified within 48 hours to initiate a claim or arrange for a replacement.

2.4 Samples

Suppliers of YJV cables offer samples to help customers evaluate the product’s quality, dimensions, and suitability for their specific applications.

Samples are typically 1–5 meter lengths of the cable, including all key components: Copper Conductors, XLPE insulation, armor, and PVC sheath. They are available for all conductor sizes (25mm² to 180mm²) and core counts (3 to 6 cores), allowing customers to test flexibility, measure dimensions, and assess material quality.

To request a sample, customers can contact the supplier’s sales team via phone, email, or the company’s website. They must specify the conductor size, core count, and voltage rating, as well as their intended application. Some suppliers offer samples free of charge for qualified customers (e.g., industrial buyers or contractors), while others charge a nominal fee to cover production and shipping costs, which is refundable upon placing a bulk order.

Samples are shipped via express courier (e.g., DHL, FedEx) to ensure prompt delivery. Domestic samples arrive within 2–3 business days, while international samples take 5–7 business days. They are packaged in rigid cardboard tubes or protective boxes to prevent damage during transit, with labels indicating the product specifications and batch number for traceability.

Customers can use samples to conduct various tests, such as verifying conductor size with a caliper, checking insulation thickness, or assessing flexibility by bending the cable to the minimum radius. They can also perform visual inspections to ensure the armor is uniformly applied and the sheath is free of defects like cracks or bubbles.

2.5 After-Sales Service

Comprehensive after-sales service ensures customers receive ongoing support long after purchasing YJV cables, covering installation, troubleshooting, and warranty claims.

Technical support is available via phone, email, or on-site visits. Suppliers employ teams of electrical engineers who can provide guidance on cable installation, including proper bending techniques, termination methods, and compatibility with connectors or junction boxes. For example, they can advise on how to strip the PVC sheath and armor without damaging the XLPE insulation, or recommend tools for cutting large-diameter cables.

Warranty coverage for YJV cables typically ranges from 5 to 10 years, depending on the supplier and application. The warranty covers manufacturing defects, such as faulty insulation, inadequate armoring, or conductor flaws that affect performance. It does not cover damage caused by improper installation, mechanical abuse, or exposure to extreme conditions beyond the cable’s rated specifications.

To file a warranty claim, customers must provide proof of purchase, photos or videos of the defect, and a description of the issue. Suppliers may send a technical representative to inspect the cable and determine the cause of failure. If the claim is approved, the supplier will replace the defective cable or provide a refund, depending on the severity of the issue.

For customers requiring additional support, suppliers offer training programs on cable handling and maintenance. These programs can be conducted at the customer’s facility or online, covering topics like identifying cable damage, preventing corrosion, and extending service life through proper storage.

Suppliers also maintain a network of authorized service partners, including electricians and contractors, who can assist with installation, repairs, or replacements. This ensures customers have access to local expertise, reducing downtime in case of cable failure.

Finally, feedback mechanisms are in place to continuously improve product quality. Suppliers encourage customers to share their experiences, whether positive or negative, through surveys or direct communication. This input is used to refine manufacturing processes, address common issues (e.g., sheath cracking in cold climates), and develop new features that better meet customer needs.

In summary, the after-sales service for YJV cables is designed to support customers throughout the product lifecycle, ensuring safe, reliable performance and maximizing the return on investment. Whether through technical guidance, warranty coverage, or training, suppliers strive to build long-term partnerships with their customers.