Welcome to visit Big thistle!
Current location:front page >> mechanical

What is the bv line?

2026-01-25 09:38:38 mechanical

What is the BV line?

In recent years, with the popularization of electronic equipment and technological advancement, BV wire, as a common wire type, has gradually become the focus of attention. So, what exactly is the BV line? What are its features and uses? This article will give you detailed answers.

1. Definition of BV line

What is the bv line?

BV line, full nameCopper core PVC insulated wire, is a common household wire. Its name comes from its structure and materials:

  • B: Indicates laying wires (wires for fixed installation)
  • V: Indicates polyvinyl chloride (PVC) insulation

BV lines are mainly composed of copper conductors and PVC insulation layers and are widely used in power transmission in homes, offices and other places.

2. Characteristics of BV line

FeaturesDescription
conductor materialHigh purity copper with excellent electrical conductivity
insulation materialPolyvinyl chloride (PVC), corrosion-resistant and aging-resistant
working temperature-15℃~70℃
Rated voltage450/750V
Laying methodApply it openly or covertly, do not bury it directly

3. Specifications and models of BV lines

BV wires come in a variety of specifications. Common specifications are as shown in the table below:

Specifications (mm²)Conductor diameter (mm)Outer diameter (mm)Carrying capacity (A)
1.51.382.818
2.51.783.225
42.253.632
62.764.542

4. Purpose of BV line

BV wire is widely used in the following fields due to its good electrical and mechanical properties:

  • Household circuit wiring: such as lighting, sockets, etc.
  • Office power transmission
  • Internal wiring of electrical equipment
  • Temporary power lines

5. The difference between BV wire and other wires

In addition to BV wires, common wires on the market also include BVR wires, RV wires, etc. Their differences are as follows:

Modelconductor structuresoftnessMain purpose
BVsingle strand hard copper wireHarderfixed wiring
BVRStranded soft copper wiresofterWhere bending is required
RVThinner stranded copper wirevery softMobile electrical cable

6. How to choose BV line

You need to pay attention to the following points when purchasing BV lines:

  1. Check product identification: Regular products should have clear specifications, models, factory names and other information
  2. Check the conductor quality: the copper core should be bright and non-oxidized, and the diameter should meet the standard
  3. Observe the insulation layer: it should be uniform and smooth, without defects such as bubbles and cracks.
  4. Choose the appropriate specifications: Choose the appropriate wire diameter according to the electrical load
  5. Look for CCC certification: ensure that products comply with national safety standards

7. Precautions for installing BV line

When installing BV lines, you need to pay attention to the following matters:

  • Avoid excessive bending to prevent damage to the insulation layer
  • When laying through pipes, the total cross-sectional area of the wires in the pipe should not exceed 40% of the cross-sectional area of the pipe
  • The joints should be insulated
  • Wires of different circuits and voltages should not be run in the same tube
  • When applying it darkly, marks should be made on the wall to avoid accidental damage during decoration.

8. Market conditions of BV line

According to recent market research, the price trend of BV line is as follows (for reference only):

Specifications (mm²)Unit price (yuan/meter)Main brands
1.51.5-2.5Chint, Delixi, Panda
2.52.5-3.5Chint, Delixi, Panda
44.0-5.5Chint, Delixi, Panda

9. The future development trend of BV line

With the popularity of smart homes and green buildings, BV lines are also constantly developing:

  • Application of environmentally friendly PVC materials
  • Improvement of flame retardant properties
  • More precise specification breakdown
  • Integration of intelligent monitoring functions

In short, BV lines, as the basic power transmission medium, will still play an important role in the foreseeable future. Understanding the characteristics and correct use of BV wires is of great significance to ensuring the safety of electricity and improving the quality of life.

Next article
  • What wave is ultrasound?Ultrasound is a sound wave with a frequency higher than the human hearing range, usually referring to sound waves with a frequency exceeding 20,000 Hertz (Hz). It is widely used in medicine, industry, military and other fields. This article will introduce in detail the definition, characteristics, applications and hot topics of the past 10 days.1. Definition and characteristics of ultrasonic w
    2026-01-27 mechanical
  • What is the BV line?In recent years, with the popularization of electronic equipment and technological advancement, BV wire, as a common wire type, has gradually become the focus of attention. So, what exactly is the BV line? What are its features and uses? This article will give you detailed answers.1. Definition of BV lineBV line, full nameCopper core PVC insulated wire, is a common household wire. Its name comes f
    2026-01-25 mechanical
  • What does hospital negative pressure mean?In recent years, with the frequent occurrence of public health incidents, the concept of negative pressure wards in hospitals has gradually come into public view. Then,What does hospital negative pressure mean?? Why is it so important in a medical setting? This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detail
    2026-01-22 mechanical
  • What does motor rated power mean?Among the hot topics on the entire network in the past 10 days, discussions about motor rated power have remained hot, especially in fields such as new energy vehicles and industrial automation. This article will explain in detail the meaning of motor rated power and display relevant knowledge points through structured data to help readers better understand this concept.1. Definition
    2026-01-20 mechanical
Recommended articles
Reading rankings
Friendly links
Dividing line