Both YJV and YJY cables are commonly used power cables, differing primarily in their applications and performance.
First, YJV cables utilize cross-linked polyethylene insulation and are suitable for power systems with rated voltages from 6kV to 35kV. Their advantages include high capacity, excellent insulation, high-temperature and corrosion resistance, and high mechanical strength, making them widely used in transmission and distribution lines within power systems.
YJY cables, also utilizing cross-linked polyethylene insulation, are suitable for mobile electrical equipment and control circuits with rated voltages from 6kV to 35kV. This means they are primarily used in electrical equipment in electrified railways, subways, and urban rail transit, requiring high mobility and reliability.
There are also some differences in cable structure between YJV and YJY cables. YJV national standard cables generally consist of a conductor, a cross-linked polyethylene insulation layer, an inner lining layer, an armor layer, and an outer sheath. YJY national standard cables, on the other hand, omit the inner lining layer and adopt a single-core construction. A braided layer is added to the armor layer to enhance mechanical strength and tensile strength.
In summary, YJV national standard cables and YJY national standard cables differ in their applications and performance. The former is suitable for transmission and distribution lines, while the latter is suitable for mobile electrical equipment. When selecting a cable, the appropriate model and specifications should be selected based on actual needs and the intended use environment.
When selecting a national standard cable manufacturer, consider the following factors:
Production Equipment and Production Processes: Well-known national standard wire and cable manufacturers typically possess superior production equipment and sophisticated production processes, which guarantee product quality and performance, and improve production efficiency and output.
Material Selection: The quality of national standard wire and cable depends on the raw materials used. Well-known national standard wire and cable manufacturers typically use high-quality raw materials to ensure product quality and performance.
Cost-Effectiveness: Prices may vary among different manufacturers of national standard wire and cable. Choosing a manufacturer with the best cost-effectiveness can save costs while ensuring product quality and performance.
Manufacturer's past order volume: A manufacturer's order volume reflects their service attitude and capabilities and can be used as a reference.
Does the manufacturer comply with relevant standards? Manufacturers of national standard wire and cable should comply with relevant national and industry standards to ensure product quality and performance.
