Shandong Jinyu Cable Co., Ltd.
Shandong Jinyu Cable Co., Ltd.
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4 - core 0.75mm² 300V/450V RVVP Shielded Copper Core Shield Flexible Cable
General Introduction
The 4 - core 0.75mm² 300V/450V RVVP shielded copper core shield flexible cable is a sophisticated electrical cable designed to meet the demanding requirements of various electrical systems. It combines excellent electrical performance, reliable shielding, and remarkable flexibility to ensure stable and safe operation in a wide range of applications.
Copper Core Details
High - Conductivity Copper: The cable is centered around a copper core, renowned for its outstanding electrical conductivity. Copper's natural properties enable efficient flow of electrical current, minimizing energy losses during transmission. This results in better overall system efficiency and reduced heat generation within the cable.
Core Configuration: Comprising four cores, each with a cross - sectional area of 0.75mm², this design offers a balanced combination of current - carrying capacity and flexibility. The stranded structure of the copper cores enhances the cable's flexibility, allowing it to be easily routed around obstacles, bent, or twisted during installation without sacrificing its electrical integrity. This is particularly advantageous in complex wiring environments where space constraints and intricate routing are common.
Shielding Mechanism
Inner Shielding: A crucial aspect of this cable is its inner shielding layer that surrounds the copper cores. This inner shield acts as a protective barrier against external electromagnetic interference (EMI). In environments where multiple electrical devices operate simultaneously, EMI can disrupt the signals traveling through the cable. The inner shield effectively reduces this interference, ensuring the integrity and accuracy of the transmitted signals. This is vital in applications such as industrial automation, where precise control signals are essential for the proper functioning of equipment.
Outer Shield: Complementing the inner shield, the outer shield provides an additional layer of protection. It further safeguards the cable from external EMI and also offers enhanced resistance against electrostatic discharge. This dual - shielding system makes the cable highly reliable in electrically noisy environments, such as those found in manufacturing plants, power stations, or data centers.
Insulation and Sheath Properties
Insulation Quality: High - quality insulation materials are employed to coat each copper core. These materials possess excellent dielectric properties, enabling them to withstand the voltage requirements of 300V/450V. The insulation effectively prevents electrical leakage between the cores, ensuring the safety and proper functioning of the cable. It also provides protection against short - circuits, which could otherwise lead to system failures or safety hazards.
Sheath Characteristics: The cable is encased in a flexible sheath that offers multiple benefits. The sheath is not only highly durable but also provides protection against physical damage, including abrasion from contact with rough surfaces, moisture ingress, and exposure to various chemicals. This durability ensures a long - lasting cable that can maintain its performance under different environmental conditions, from dry indoor settings to more challenging outdoor or industrial environments.
Performance Highlights
Electrical Performance Excellence: Thanks to its copper core, optimized insulation, and shielding, the cable exhibits superior electrical performance. It has low electrical resistance, enabling efficient current flow, and low capacitance to maintain signal integrity. The combination of these factors allows for reliable power transmission and signal transfer, even in the presence of external electrical disturbances.
Mechanical Flexibility and Durability: The stranded copper core and flexible sheath 赋予电缆出色的机械柔韧性.It can withstand significant bending, twisting, and pulling forces during installation and operation. This mechanical flexibility, combined with the cable's durability, makes it an ideal choice for applications where cables may be subject to frequent movement or mechanical stress, such as in robotics, moving machinery, or cable trays.
Voltage Compatibility and Safety: With a voltage rating of 300V/450V, the cable is suitable for a wide range of electrical systems within this voltage range. The shielding and insulation features work together to ensure the safety of the cable during operation. They reduce the risk of electrical shock to personnel and protect the connected equipment from potential electrical faults, thereby enhancing the overall safety of the electrical installation.
Diverse Applications
This RVVP shielded cable finds extensive use in numerous industries and applications. In industrial automation, it is used to connect programmable logic controllers (PLCs), sensors, actuators, and other control devices. In the field of building automation, it can be used for wiring security systems, including surveillance cameras, access control systems, and alarm systems. Additionally, it is suitable for communication systems, instrumentation, and any electrical setup that demands reliable signal transmission and power supply within the 300V/450V voltage range while operating in environments with potential electromagnetic interference.
Sheet Data of 300V/450V RVVP Shielded Copper Core Shield Flexible Cable
General Specifications
Voltage Rating: 300V/450V. This indicates the cable's ability to safely operate within this voltage range. The dual - voltage rating makes it suitable for a variety of electrical systems with different voltage requirements.
Type: RVVP, which stands for a flexible, shielded cable with copper conductors. The flexibility allows for easy installation in various environments, and the shielding provides protection against electromagnetic interference.
Conductor (Copper Core)Material: High - purity copper. Copper is chosen for its excellent electrical conductivity, which ensures efficient transmission of electrical current with minimal resistance.
Conductor Size: Varies depending on the specific model, but common sizes are available to meet different current - carrying requirements. For example, in some applications, smaller conductor sizes may be used for low - power signal transmission, while larger sizes are for higher - power applications.
Stranding: The copper conductors are usually stranded. Stranding provides flexibility to the cable, making it easier to bend and route around obstacles during installation. It also helps in reducing the risk of conductor breakage under mechanical stress.
Shielding
Inner Shield: Consists of a layer of metal foil or braided wire. The inner shield is designed to protect the conductors from internal electromagnetic interference generated by adjacent conductors within the cable. This helps in maintaining the integrity of the signals being transmitted.
Outer Shield: Typically a braided copper wire or a combination of metal foil and braided wire. The outer shield provides protection against external electromagnetic interference from nearby electrical equipment, motors, or other sources of electromagnetic fields. It also helps in reducing electrostatic discharge.
Insulation
Material: High - quality insulation materials such as polyvinyl chloride (PVC) or cross - linked polyethylene (XLPE) are commonly used. These materials have excellent dielectric properties, which prevent electrical leakage between the conductors.
Insulation Thickness: The thickness of the insulation is carefully determined based on the voltage rating. Adequate insulation thickness ensures that the cable can withstand the rated voltage without breakdown. For a 300V/450V cable, the insulation thickness is designed to provide reliable electrical separation between the conductors and the environment.
Overall Cable Dimensions
Diameter: The diameter of the cable depends on the number of conductors, the size of the conductors, and the thickness of the insulation and shielding layers. A typical RVVP cable with multiple conductors may have a diameter ranging from a few millimeters to over a centimeter.
Weight: The weight per unit length of the cable varies based on its construction. Knowledge of the weight is important for installation purposes, especially when considering cable support and routing.
Electrical Performance
Capacitance: The cable has a specific capacitance value between the conductors. This capacitance affects the signal transmission characteristics, especially in high - frequency applications. The design of the cable aims to keep the capacitance within an acceptable range to ensure stable signal transmission.
Impedance: The impedance of the cable is another important electrical parameter. It is determined by the conductor size, insulation material, and other factors. Matching the cable impedance with the connected equipment is crucial for optimal signal transfer.
Current - Carrying Capacity: Based on the conductor size and the thermal properties of the cable, there is a maximum current - carrying capacity. Exceeding this capacity can lead to overheating of the cable and potential damage to the insulation and conductors.
Mechanical Properties
Tensile Strength: The cable has a certain tensile strength, which indicates its ability to withstand pulling forces during installation. Adequate tensile strength ensures that the cable does not break or get damaged during handling.
Flexibility: The flexibility of the cable allows it to be bent and routed in various directions. Tests are usually conducted to measure the minimum bending radius that the cable can tolerate without affecting its electrical or mechanical integrity.
Abrasion Resistance: The outer sheath of the cable provides some level of abrasion resistance. This is important as the cable may come into contact with rough surfaces during installation or operation, and good abrasion resistance helps in maintaining the cable's integrity.
Environmental Characteristics
Temperature Range: The cable is designed to operate within a specific temperature range. This range may vary depending on the insulation and sheath materials used. For example, some RVVP cables can operate in temperatures ranging from - 20°C to +70°C.
Flame Retardancy: In certain applications, the cable may need to have flame - retardant properties. Flame - retardant cables are designed to self - extinguish or slow down the spread of fire in case of an incident.
Chemical Resistance: The cable should be able to resist the effects of common chemicals such as oils, solvents, and acids that may be present in the environment where it is installed. This chemical resistance helps in maintaining the cable's performance and durability over time.