Wire and Cable: What is the difference between RVV and BVR?

2025-09-10 Leave a message

When it comes to BVR cable, we know it's often used in home renovation wiring, and this often leads us to BVV cable. However, today we'll focus on RVV cable and BVR cable. Both are multi-core cables with excellent flexibility. So what kind of cable is RVV, and how does it differ from BVR? Below, we'll explain the differences.


Introduction to RVV and BVR


1. RVV Cable


RVV cable, also known as copper-core PVC insulated flexible cable, is commonly known as sheathed cable, electronic cable, signal cable, or multi-core cable. It's suitable for flexible, mobile installations with an AC rated voltage of 300/500 volts or less. It's suitable for power, control, and signal transmission lines for electrical appliances, instruments, electronic equipment, and automation equipment. It can also be used in specific applications such as burglar alarm systems and building intercom systems.


Main parameters of RVV wire


(1) Rated voltage: 300/500 volts


(2) Nominal parts: 2 cores, 3 cores, 4 cores, 5 cores, 6 cores, 7 cores, 8 cores, 10 cores, 12 cores, 16 cores, 20 cores, 24 cores, etc.


(3) Insulation thickness: 0.8 mm


(4) Implementation standard: GB5023.3-1997


(5) Conductor material: oxygen-free copper


(6) Insulation material: environmentally friendly polyvinyl chloride


(7) Standard length: 100 meters


(8) Main color: black,


(9) Scope of application: power connection of electrical and instrument equipment


(10) Applicable environment: anti-theft alarm system, building intercom system, etc.


2. BVR wire


BVR wire Chinese name: copper core polyvinyl chloride insulated soft sheath wire, wire structure: conductor + insulation.


The letter B stands for wiring (for example, for indoor power lines, nail it to the wall), voltage: 300/500V. The letter V stands for polyvinyl chloride plastic sheath (one V stands for one layer of insulation and two Vs stand for double layer of insulation), that is, the plastic insulation layer. L stands for aluminum wire, and no L means copper wire. The letter R stands for soft wire. To make it soft, the number of conductors is increased and the diameter of each wire is reduced. Structure: The conductor is copper wire, and the average diameter of each copper wire is less than one millimeter.


Differences between RVV wire and BVR wire


(1) RVV line implementation standard: GB/T5023.5-2008 BVR line implementation standard: JB/T8734.2-2016


(2) The cross-sectional area of RVV wire is larger than that of BVR wire with different cross-sectional areas


(3) Different structures. BVR is a single-core wire composed of multiple copper wires; RVV is also composed of multiple copper wires, but it can also be a multi-core wire.


The above content is about RVV wire and BVR wire and the difference between them. So here I would like to explain to you about wire selection. When selecting wires, we can choose BVR wires because its conductor is copper core wire, which has advantages in service life and performance. However, the editor's suggestions can only be used as a reference. However, no matter how you choose, you must look for high-quality wires. Choosing wire quality is also a top priority. Everyone should have a spectacled attitude towards this. Knowing more about wire and cable knowledge will be of some help to us.