ZC-BVR flame-retardant wire is a kind of copper-core PVC insulated flame-retardant flexible wire, suitable for fixed wiring of power installations with rated voltage 450/750V and below.
ZC-BVR flame-retardant wire is a kind of copper-core PVC insulated flame-retardant flexible wire, suitable for fixed wiring of power installations with rated voltage 450/750V and below.
Product specifications and scope of application
The model specifications of ZC-BVR flame-retardant electric wire include nominal cross-sectional area of 2.5-185 square millimeters, and it is suitable for automation devices, power lighting, complete control lines of electrical appliances, and wiring of mechanical equipments with rated voltages of 450/750V and below for AC and 1000V for DC. Its long-term working temperature should not exceed 70℃, and the temperature during installation or movement should not be lower than -10℃12.
Flame Retardant Characteristics
ZC-BVR flame retardant wire adopts special materials and production process to ensure its fireproof performance. The PVC material wrapped around the outer layer has high temperature resistance, abrasion resistance, and waterproof performance, which can prevent the production of black smoke or burning materials when subjected to fire, thus improving people's ability to escape in emergency situations3.
Certification Information
ZC-BVR flame-retardant wires usually pass 3C certification to ensure the quality and safety of the product. In addition, the product also meets the standard requirements of GB/T19666-2005 General Rules for Flame Retardant and Fire Resistant Wires and Cables4.
Frequently asked questions about BVR wire:
Q: What does ZC - BVR stand for?
A: “ZC” means flame retardant grade C, indicating that the wire has a certain degree of flame retardancy, under the specified test conditions, remove the fire source, the flame can only spread within the limits, and can extinguish itself. “BVR” is the type of wire, B for cloth wire, V for PVC insulation, R for soft wire, this wire is softer, easier to use in some need to bend the wiring scene.
Q: What are the applications of Flame Retardant ZC - BVR wire?
A: It is commonly used for electrical wiring in buildings, such as lighting lines and socket lines in homes, shopping malls, office buildings, etc. Because these places are densely populated, the use of flame-retardant ZC-BVR wire is very convenient. Because these places are densely populated, the use of flame retardant wire can reduce the risk of the wire burning and spreading in case of fire. It is also used in some industrial places with fire hazards, such as workshops where flammable and explosive substances are present, but other protective measures may be required at the same time, depending on the specific level of hazard.
Q: How to recognize the authenticity of ZC - BVR wire?
A: First of all, look at the packaging, the regular product packaging will have a clear factory name, factory address, product specifications and models, implementation standards and other information. The appearance of the wire itself is also very important, really ZC - BVR wire insulation surface smooth, uniform color, texture tight. Can be judged by measuring the conductor resistance of the wire, different specifications of the ZC - BVR wire has a specified resistance range, if the measured resistance exceeds the range, it may be counterfeit products.
Q: What is the difference between flame retardant ZC-BVR and ordinary BVR wire?
A: The main difference is the flame retardant performance. Ordinary BVR wire is easy to burn and may contribute to the spread of fire when it encounters an ignition source; while flame retardant ZC-BVR wire can prevent the spread of flames to a certain extent, which can buy more time for evacuation and extinguishing of fire when fire occurs.
Q: What is the approximate service life of flame retardant ZC-BVR wire?
A: The service life can be up to about 20 - 30 years under normal environment. However, the actual service life will be affected by the temperature and humidity of the environment, whether it is corroded and other factors. For example, in a high temperature and humidity environment with chemical corrosive gases, the insulation and conductor of the wire may accelerate aging and shorten its life.
Q: What are the special requirements during the installation of flame retardant ZC - BVR wire?
A: During installation, care should be taken to avoid mechanical damage to the wire because once the insulation layer is broken, it will affect the flame retardant performance and electrical safety. In the wiring process, it is necessary to keep a certain distance from other heat sources (such as heating pipes) to prevent premature aging of the insulation layer due to overheating. If it is in some areas with fire protection requirements, it may be necessary to use fire-resistant bridges or feedthroughs (e.g., metal pipes, flame-retardant PVC pipes) to further improve the fire resistance.
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