With the rapid development of my country's economy, the safety, reliability, and environmental protection requirements for power systems are becoming increasingly stringent. Cable lines have become an indispensable component of power systems. However, cable line safety issues are becoming increasingly prominent, with cable fires occurring frequently, resulting in serious casualties and property damage. To improve the fire safety of cable lines, flame-retardant cables are becoming increasingly common. This article compares and analyzes the technical parameters and applications of two flame-retardant cables, ZR-YJV and ZR-VV, to provide a reference for cable selection.
1. ZR-YJV Flame-Retardant Cable
ZR-YJV flame-retardant cable is a power cable with excellent flame-retardant properties, suitable for indoor and outdoor installations, aerial and direct burial applications. Its insulation material, cross-linked polyethylene (XLPE), offers excellent electrical, mechanical, and flame-retardant properties. The sheath, made of materials such as chlorosulfonated polyethylene (CSM) or polyurethane (PUR), offers excellent abrasion resistance, aging resistance, UV resistance, and flame retardancy.
The technical parameters of the ZR-YJV flame-retardant cable are as follows:
1. Rated voltage: 0.6/1kV to 35kV;
2. Conductor material: Copper or aluminum;
3. Insulation thickness: 2.5mm to 40mm;
4. Sheath thickness: 5mm to 15mm;
5. Flame retardant performance: Meets the requirements of GB/T12706.1-2008.
II. ZR-VV flame-retardant cable
The ZR-VV flame-retardant cable is a polyvinyl chloride (PVC) insulated and sheathed power cable suitable for indoor and outdoor use, aerial installation, and direct burial applications. The PVC insulation material offers excellent electrical, mechanical, and flame-retardant properties. The PVC sheath also provides excellent wear resistance, aging resistance, UV resistance, and flame retardancy.
The technical parameters of the ZR-VV flame-retardant cable are as follows:
1. Rated voltage: 0.6/1kV to 35kV;
2. Conductor material: Copper or aluminum;
3. Insulation thickness: 2.5mm to 40mm;
4. Jacket thickness: 5mm to 15mm;
5. Flame retardant performance: Meets the requirements of GB/T12706.1-2008.
III. Application Comparison
1. Flame retardant performance: Both the ZR-YJV and ZR-VV flame-retardant cables offer excellent flame retardant performance and comply with relevant Chinese standards. In practical applications, both cables meet the fire safety requirements of general applications.
2. Environmental adaptability: The ZR-YJV flame-retardant cable's jacket is made of chlorosulfonated polyethylene (CSM) or polyurethane (PUR), which offers excellent resistance to abrasion, aging, and UV rays. Therefore, the ZR-YJV flame-retardant cable is suitable for harsh environments such as outdoor and overhead installations. The ZR-VV flame-retardant cable, however, uses polyvinyl chloride (PVC) as its sheath material, which has relatively poor abrasion, aging, and UV resistance, making it suitable for more temperate environments such as indoors.
3. Cost: Because the ZR-YJV flame-retardant cable uses cross-linked polyethylene (XLPE) for insulation and chlorosulfonated polyethylene (CSM) or polyurethane (PUR) as its sheath material, its production cost is relatively high. The ZR-VV flame-retardant cable, on the other hand, uses polyvinyl chloride (PVC) for insulation and sheathing, resulting in a relatively low production cost.
4. Electrical Performance: The ZR-YJV flame-retardant cable uses cross-linked polyethylene (XLPE) insulation, offering excellent electrical performance and suitable for high and ultra-high voltage applications. The ZR-VV flame-retardant cable, on the other hand, uses polyvinyl chloride (PVC) insulation, which has relatively poor electrical performance and is suitable for low and medium voltage applications.
ZR-YJV and ZR-VV flame-retardant cables differ in flame retardancy, environmental adaptability, cost, and electrical performance. In actual applications, the appropriate flame-retardant cable should be selected based on specific needs and environmental conditions.
