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About Us

Shandong Jinyu Cable Co., Ltd.

Shandong Jinyu Cable Co., Ltd. produces power cables, high-voltage cables, overhead cables, control cables, flame-retardant and fire-resistant cables, low-smoke and halogen-free cables and other products.

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Trust Seal, Credit Check, ISO and Supplier Capability Assessment. company has strictly quality control system and professional test lab.

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Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.

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Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.

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Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

Marine Cables: The "Energy Link" for Blue Economy, Backed by Jinyu Cables

Marine Cables: The "Energy Link" for Blue Economy, Backed by Jinyu Cables The vast blue ocean is emerging as a new battlefield for global energy and communication development. From grid connection of deep - sea wind power to transoceanic communication interconnection, marine cables, as the key "energy link", support the vigorous rise of the blue economy. Shandong Jinyu Cable Co., Ltd., with profound technical accumulation and full - range manufacturing capabilities, provides reliable solutions for the marine cable market, helping customers seize the opportunities of marine development. I. Marine Cables: A "Necessary Puzzle" for Ocean Development Marine cables mainly include three categories: submarine power cables, submarine optoelectronic composite cables, and umbilical cables, corresponding to the needs of different marine scenarios: Submarine power cables: Undertake the task of power transmission for offshore wind power and island power supply. They need to have characteristics such as seawater corrosion resistance, mechanical tensile resistance, and low insulation loss to ensure stable power transmission in the deep sea. Submarine optoelectronic composite cables: Transmit power and signals simultaneously, providing an "electricity + data" integrated solution for marine observation networks and offshore platform communication. Umbilical cables: Serve offshore oil and gas development, integrating functions such as power, hydraulics, chemical injection, and signal transmission. They are the "lifeline" of deep - sea oil and gas extraction equipment. With the global trend of "striving for the sea" — the installed capacity of offshore wind power grows at an annual rate of over 20%, offshore oil and gas development moves towards ultra - deep water, and the construction of submarine observation networks accelerates. The market size of marine cables is expected to exceed 100 billion yuan by 2030, becoming a new growth pole in the cable industry. II. Jinyu Cables: The "All - round Supplier" of Marine Cables Shandong Jinyu Cable has been deeply engaged in the cable field for many years and has built a full - range and customized product matrix for marine scenarios: 1. Technological Breakthroughs: Overcoming Marine Environment Challenges Material Innovation: Using ultra - high - purity oxygen - free copper, seawater - resistant cross - linked polyethylene (XLPE) insulation materials, and a double - layer anti - corrosion sheath (such as HDPE + asphalt anti - corrosion layer), the service life of the cable can reach more than 30 years. Structural Optimization: Through the "central strength member + multi - layer stranding" design, the cable's tensile and torsion resistance is improved, meeting the strict requirements of deep - sea laying (water depth exceeding 1000 meters) and dynamic platforms (such as FPSO). Testing System: Establish an exclusive laboratory for marine cables, simulating environments such as seawater pressure, salt spray corrosion, and extreme temperatures, and controlling product reliability throughout the process. 2. Product Coverage: Meeting All - scenario Needs in One Stop Offshore Wind Power: Provide 35kV - 220kV submarine cables, suitable for different installed capacity wind turbines, supporting large - length joint - free production (single - reel length exceeding 5000 meters), reducing offshore construction risks. Marine Oil and Gas: Customized umbilical cables, integrating multi - core power, hydraulic channels, and optical fiber units, suitable for deep - water oil and gas field development. Marine Communication and Observation: Submarine optoelectronic composite cables support high - speed data transmission, facilitating the construction of marine observation networks and transoceanic communication trunks. III. Market Prospects: Embracing Marine Opportunities, Jinyu Walks with You Currently, the global ocean development shows three major trends, creating broad space for marine cables: "Dual Carbon" Drive: Offshore wind power upgrades to deep - sea and large - capacity units, driving the explosive growth of demand for high - voltage and large - cross - section submarine cables. Energy Security: Marine oil and gas development expands to ultra - deep water, and the demand for high - end products such as umbilical cables continues to grow. Digital Ocean: The construction of submarine observation networks and marine data centers accelerates, and the market size of optoelectronic composite cables expands rapidly. Shandong Jinyu Cable, with the triple advantages of "technology + production capacity + service", provides customers with full - cycle support from product customization to after - sales operation and maintenance: Production Capacity Guarantee: Built an intelligent marine cable production base with an annual production capacity of over 1000 kilometers, meeting the delivery of large - scale projects. Service Extension: Equipped with a professional offshore laying technical team, providing one - stop services for installation, inspection, and maintenance. Flexible Customization: Quickly respond to customers' differentiated needs, such as anti - corrosion in special sea areas and structural optimization for extreme working conditions. The ocean is the "blue engine" for future development; marine cables are the "power vein" driving the engine. Shandong Jinyu Cable Co., Ltd., with strength as the pen and quality as the ink, writes a reliable chapter for marine cables. Whether you are 布局 offshore wind power, developing marine oil and gas, or building a marine communication network, Jinyu Cable is a trustworthy partner — let's join hands to explore a new future for the blue economy!

2025-05-27

Mastering Common Cable Models: Essential Usage Tips for Electrical Projects

Mastering Common Cable Models: Essential Usage Tips for Electrical Projects In electrical installations and engineering projects, selecting the right cable model is crucial for safety, efficiency, and long-term reliability. With a wide range of cable types available, understanding their characteristics and application scenarios can help you make informed decisions. This guide breaks down popular cable models and shares practical tips for optimal usage. 1. RVV (Round Sheathed Flexible Cable) Characteristics: Structure: Multi-core copper conductors with PVC insulation and an outer PVC sheath. Flexibility: High bend radius tolerance, ideal for movable equipment. Voltage Rating: Typically 300/500V or 450/750V. Typical Applications: Home appliances (washing machines, vacuum cleaners) Lighting systems in commercial spaces Temporary power connections at construction sites Usage Tips: Current Capacity: Calculate load requirements first—undersized cables may overheat. A 2.5mm² RVV can handle up to 20A safely. Environmental Protection: Avoid exposing RVV to direct sunlight or extreme temperatures; use conduit for outdoor runs. Installation: Leave extra slack for movable devices to prevent strain on connectors. 2. BV (Single-core PVC Insulated Cable) Characteristics: Structure: Single copper conductor with PVC insulation (no outer sheath). Rigidity: Stiff design for fixed wiring. Voltage Rating: 450/750V (standard for household use). Typical Applications: Residential wiring (power circuits, lighting) Internal cabling in switchboards Fixed industrial machinery connections Usage Tips: Color Coding: Follow local standards (e.g., brown for live, blue for neutral, 黄绿 for earth) to ensure compliance and safety. Conduit Installation: Always use PVC conduit or cable trays to protect BV cables from physical damage and moisture. Termination: Strip insulation carefully to avoid conductor nicks; use proper connectors (e.g., wire nuts or terminal blocks). 3. YJV (Cross-linked Polyethylene Insulated Cable) Characteristics: Structure: Copper/aluminum conductors with XLPE insulation and PVC sheath. High Temperature Resistance: Can operate up to 90°C, suitable for high-load environments. Durability: Excellent chemical and moisture resistance. Typical Applications: Power transmission in industrial plants Underground power lines High-rise building main distribution systems Usage Tips: Soil Burial: When installing underground, use additional HDPE ducting for mechanical protection and easier future maintenance. Temperature Derating: Adjust ampacity ratings based on ambient temperature—consult manufacturer tables for deration factors. Jointing: Use heat-shrinkable sleeves or pre-molded connectors to ensure waterproof and high-integrity joints. 4. KVV (Control Cable) Characteristics: Structure: Multi-core conductors (2-61 cores) with PVC insulation and sheath. Low Voltage: Rated for 450/750V, designed for control signals. Flexibility: Moderate flexibility for fixed or semi-fixed installations. Typical Applications: Industrial control systems (PLC connections) Building automation (security systems, HVAC controls) Instrumentation in power plants Usage Tips: Core Separation: Label each core clearly during installation to simplify troubleshooting (use numbering or color-coded cores). Noise Reduction: For signal-sensitive applications, choose KVV with braided shield (KVVP) to minimize electromagnetic interference. Bending Radius: Maintain a bend radius of 6-10x cable diameter to avoid insulation damage. 5. RVVP (Shielded Flexible Cable) Characteristics: Structure: Multi-core conductors with PVC insulation, braided copper shield, and outer PVC sheath. EMI Protection: Shielding reduces interference in signal transmission. Flexibility: High mobility suitable for moving machinery. Typical Applications: Audio/video systems (microphones, cameras) Industrial automation (encoder/decoder connections) Medical equipment (sensitive diagnostic devices) Usage Tips: Grounding the Shield: Connect the shield to a single point ground to avoid ground loops—use metal connectors with good conductivity. Cable Length: Keep signal cables as short as possible; for long runs, consider twisted-pair RVVP for better noise immunity. Jacket Thickness: Check the shield coverage percentage (ideally ≥90%) for critical applications. Key Considerations for Cable Selection Environmental Factors: Temperature (indoor/outdoor, high-heat zones) Moisture exposure (IP rating requirements) Chemical resistance (corrosive environments) Electrical Parameters:

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