Among the many cable specifications and types, RVV and YJV cables are very common. They each have their own advantages in their respective fields, but many people are not very familiar with their characteristics. Here, we will provide a detailed introduction to RVV and YJV cables to help you better and more quickly choose the right wire and cable for your needs.
RVV cable stands for copper-core PVC-insulated PVC-sheathed flexible wire, also known as lightweight PVC-sheathed flexible wire or, more commonly, soft-sheathed wire. The "R" refers to the soft wire and the "V" refers to the PVC insulation. RVV cable has excellent electrical properties and flexibility and is primarily used for power, control, and signal transmission lines in electrical appliances, instruments, electronic equipment, and automation devices. It can be used in burglar alarm systems and building intercom systems.
YJV cable, also known as cross-linked polyethylene insulated PVC-sheathed power cable, is a multi-core cable with a cross-linked polyethylene insulation layer and a PVC sheath. Due to its excellent electrical properties, high-temperature resistance, and corrosion resistance, YJV cable is widely used in power transmission, industrial automation, and other fields.
RVV and YJV cables are both commonly used cable types, but they differ in terms of rated voltage, structure, performance, and application scenarios.
1. Rated Voltage: RVV cables have a rated voltage of 300/500V, while YJV cables have a rated voltage of 0.6/1kV, with high voltage ratings ranging from 6/10kV to 26/35kV. This means YJV cables can withstand higher voltage levels.
2. Structure: RVV power cables are commonly used in weak current systems. They consist of two or more RV wires with a sheath. Single-core cables are round, while dual-core cables are flat. YJV cables, on the other hand, are cross-linked cables, with their basic structure consisting of three main components: conductor, insulation, and sheath. If required, YJV cables may also have a shielding layer or armor layer, making their structure more complex.
3. Performance: The sheath of RVV cables protects the inner sheath from mechanical damage and chemical corrosion, enhancing the mechanical strength of the cable. In addition to excellent electrical performance, YJV cables also offer stability, light weight, and a small outer diameter. This means that YJV cables offer superior performance in certain areas.
4. Applications: RVV cables are suitable for control signal transmission cables, electrical equipment, instrumentation, automation equipment, security and anti-theft alarm systems, high-rise building intercom systems, and home lighting cables. YJV cables, on the other hand, are primarily used in urban power grids, mining, and other industries. This means that RVV and YJV cables each have their own applications.
When using RVV and YJV cables, we need to pay attention to the following:
1. Comply with safety operating procedures: When installing and using cables, relevant safety operating procedures must be followed to avoid accidents caused by improper operation.
2. Select the appropriate cable based on the operating environment: Different operating environments have different cable requirements, so you need to select the appropriate cable type and specifications based on the actual situation. For example, when using in humid environments, waterproof cables should be selected or waterproofing measures should be strengthened.
3. Pay attention to cable quality: When purchasing cables, choose reliable brands and models to avoid counterfeit and inferior products, which can lead to safety hazards and shortened service life.
4. Regular inspection and maintenance: During use, regularly inspect the condition of the cables and promptly address any abnormalities. Additionally, perform regular maintenance to maintain them in good working condition and extend their service life.
5. Storage and handling specifications: During storage and use, adhere to cable specifications to avoid damage or performance degradation caused by improper storage and handling.
