BVR wire is a copper core polyvinyl chloride insulated flexible wire, which is used in situations where flexibility is required for fixed wiring.
BVR wire is a type of flexible wire specifically designed for distribution cabinets. Also known as the secondary line.
This product is suitable for fixed installation of power devices with AC rated voltage of 450/750V and below. Like home lighting. Fixed wiring can be used for indoor exposed installation, conduit installation, and other occasions. For the convenience of differentiation during installation, it can be divided into seven colors: red, yellow, blue, green, black, white, and double. Due to its soft structure, BVR is also widely used in soft environments. The only difference between BVR wire and BV wire is that the conductor diameter of R-type wire is soft copper wire. Namely: increase the number of conductors, reduce the diameter of a single conductor, and ensure that the diameter of a single conductor is less than 1 millimeter. In this way, BVR wires are very flexible, with significantly reduced installation angle requirements compared to BV wires. It is more convenient and fast to thread through conduit and trunking, reducing work intensity while greatly improving work efficiency. Highly favored by electricians and building decorators!
The difference between BV and BVR:
(1) In terms of production technology, BV is single core, BVR is multi-core, and in terms of manufacturing, BVR is slightly more complex than BV.
(2) In terms of price, BV and BVR are slightly more expensive than BV due to their focus on craftsmanship. According to the regulations of the International Electrotechnical Commission, the range of BVR is from 2.5 mm to 70 mm. However, based on China's actual needs, it is the same as BV.
(3) In terms of performance, BV and BVR are basically the same, while BVR is slightly heavier in weight;
Similarly, BVR wires are classified into flame-retardant wires (ZR-BVR), fire-resistant wires (NH-BVR), and low smoke halogen-free wires (WDZ-RYJ) based on the materials used. Users can flexibly grasp according to their usage scenarios. Among them, low smoke and halogen-free (low halogen) wires produce a very small amount of smoke during flame combustion, and the released gas does not contain halogen (low halogen) elements, making it non-toxic (low toxicity). When a fire occurs, it can greatly reduce the harm to instruments, equipment, and human health, and is therefore widely used in high-rise buildings, hospitals, large libraries, sports halls, disaster prevention command and dispatch buildings, stations and civil airports, passenger waiting rooms, key cultural relics protection sites, as well as subways, underground shopping malls, or densely populated public places.
Product Parameters
| Voltage level |
300/500V |
working temperature |
20ºC |
| Core wire material |
Oxygen free copper |
Number of cores |
Multi strand single core |
| Applicable industries |
Industrial and Civil Decoration Engineering |
Insulation thickness |
2.2mm |
Product structure: conductor+insulation. The mainstream material of conductors is mostly oxygen free copper, composed of multiple strands of copper wire, and the insulation is PVC;
Execution standard: JB8734-2012/GB5023-2008;
Quality standard: 3C certification;
Rated voltage: The wire is immersed in water for 1 hour and subjected to AC 50Hz, 2500V (450/750V), 2000V (300/500V) voltage tests for 5 minutes without breakdown.
Working temperature: The maximum normal working temperature should not exceed 70 ºC, while the BVR-105 type should have a maximum working temperature of 105 ºC. The laying temperature of the wires should not be lower than 0 ºC;
Allowable bending radius: For wires with an outer diameter (D) less than 25mm, it shall not be less than 4D; For wires with an outer diameter (D) of 25mm or more, it should not be less than 6 (D).
Colors: red, yellow, blue, green, black, brown, yellow green, white, etc., can be customized according to requirements;
Usage: Suitable for power, daily electrical appliances, instruments, and telecommunications equipment with AC rated voltage of 450/750V and below, and is often used in various mechanical equipment with strong flexibility.
){kind=link}