Dongjiang Electric Wire BVR4 Square Wire Polyvinyl Chloride Insulated Wire Multi-strand Soft Core Wire
The BVR wire is a special flexible wire for the power distribution cabinet, also called the secondary wire. Insulated flexible wire made of copper-core polyvinyl chloride, which is used when it is required to be fixed for wiring. Widely loved by the majority of electricians and architectural decorators.
Chinese name BVR line Foreign name BVR line Other name BVR power cord Full name BVR PVC insulated flexible wire.
The BVR cable is a copper-core PVC insulated flexible cord that is used in applications where it is required to be fixed for wiring.
The BVR wire is a special flexible wire for the power distribution cabinet. Also called the secondary line.
❈ Detailed introduction
❈ The difference between BV and BVR
(1) From the production process, BV is single-core, BVR is multi-core, BVR is more complicated than BV in production.
(2) From the price point of view, BV and BVR are more expensive than BV because they are only in the process. According to the International Electrotechnical Commission, the range of BVR is from 2.5 mm to 70 mm. However, according to the actual needs of China, it is the same as BV.
(3) In terms of performance, BV is basically the same as BVR, and BVR is slightly heavier in weight; Similarly, BVR wires are also classified into flame-retardant wires (ZR-BVR), fire-resistant wires (NH-BVR), and low-smoke halogen-free wires (WDZ-RYJ) depending on the material selected. The user is flexible according to the occasion of use. Among them, the low-smoke no (low) halogen wire generates a very small amount of smoke in the case of flame combustion, and the released gas does not contain halogen (low halogen) elements, and is non-toxic (low toxicity). When fires occur, the damage to instruments, equipment and human body can be greatly reduced. Therefore, it is widely used in high-rise buildings, hospitals, large libraries, stadiums, disaster prevention command and control buildings, stations and civil airports, passenger waiting rooms, and key cultural relics. Protected places as well as subways, underground shopping malls or densely populated public places.
Letter meaning editing
B means that the classification belongs to the cloth wire and is represented by the letter B.
BVR line
V refers to PVC polyvinyl chloride, also commonly known as "plastic".
R means soft. To be soft, increase the number of conductors.
❈ Parameter editing
◆Product structure: conductor + insulation. The mainstream material of the conductor is mostly oxygen-free copper, which is composed of multiple strands of copper wire, and the insulation is PVC; |
◆Executive standard: JB8734-98/GB5023-2008; |
◆Quality standard: 3C certification; |
◆Rated voltage: The wire is immersed in water for 1 hour, subjected to AC 50Hz250V (450/750V), 2000V (300/500V) voltage test for 5 minutes without breakdown. |
◆Working temperature: the maximum temperature for normal operation does not exceed 70 °C, the maximum temperature for BVR-105 operation is 105 °C, and the laying temperature of the wire should not be lower than 0 °C; |
◆Allowable bending radius: the outer diameter of the wire (D) is less than 25mm and not less than 4D; the outer diameter of the wire (D) is 25mm or more and should not be less than 6 (D). |
◆Color: red, yellow, blue, green, black, brown, yellow green, white, etc., can be customized according to requirements; |
◆Uses: Applicable to AC rated voltage 450/750V and below power, household appliances, instrumentation and telecommunications equipment, etc., and used in a variety of mechanical equipment, bending is strong. |
❈ Specification model editing
◆Nominal cross section (mm2)
◆Core structure / wire diameter (mm)
◆Reference weight (kg/km)
◆Average outer diameter upper limit (mm)
◆Conductor resistance ≤ (Ω/km) at 20 ° C
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