What is the difference between power cable BVV and R V?

BVV: copper core conductor PVC insulated PVC sheathed round wire, is a cloth cable, where B represents a cloth cable.

RVV: Copper core conductor PVC insulated PVC sheathed flexible cable, R stands for flexible cable.

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The main difference between the two is that the material is completely different, and the power I use is also completely different.

BV is PVC insulated single core wire. BVV is a multi-core sheathed wire, with BV inside, and then there are more than two cores and a layer of sheath, and the insulation and sheath materials are polyvinyl chloride.

Volunteers are very different mainly in terms of materials, but also in terms of transportation, so it depends on the situation.

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BV wires: Refers to copper core polyvinyl chloride.

Insulated wire is a kind of single-core hard conductor unsheathed cable for general purpose, which implements the standard.

Rated voltage for GB T general purpose single-core unsheathed cable: 300V 500V; ≥ 450v/750v。

BVR wire: refers to the copper core PVC insulated soft sheath wire, wire structure: conductor + insulation. BV is a single-core copper wire, which is hard and inconvenient for construction, but has high strength.

BVV wire: refers to the copper core PVC insulated PVC sheathed round cable, due to the decoration of the home now, generally use wire pipe, and then use three copper wires (live wire, neutral wire, grounding wire.

Laying through the conduit.

These are the models of the cables.

BV: copper core conductor PVC insulated cloth wire, V represents the insulating material PVC, B represents cloth wire.

BVR: copper conductor PVC insulated soft cloth wire, R stands for flexible wire.

BVV: copper core conductor PVC insulated PVC sheathed cloth wire.

The full name of BVV wire is copper core PVC insulated PVC sheathed round sheathed wire, also known as light PVC sheathed cable, commonly known as hard sheathed wire. Copper core (hard) cloth wire, single core is round, double core is flat. It is often used for exposed wires.

The letter B stands for cloth wires, and the letter V stands for polyvinyl chloride in plastics. There are also copper core symbols, hard wires (common single-core conductors) symbols omitted and not represented. Structural Specifications:

The difference between BVV wire and BV wire is that BVV has an extra layer of sheath than BV. It is suitable for cables and wires used in power devices, daily electrical appliances, instruments and telecommunication equipment with AC voltage of 300 500V and below. The long-term permissible operating temperature of the core does not exceed +65 degrees.

Its nominal cross-section from. Uses: BVV hard sheathed wire is suitable for cables and wires used in power devices, daily electrical appliances, instruments and telecommunication equipment with AC voltage of 300 500V and below, and is also used for surface-mounted wires.

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The BV wire in the wire, referred to as the plastic copper wire, the full name is the copper core PVC insulated cloth wire; The B R wire in the wire is a copper core PVC insulated flexible wire; BVV wire in the wire, PVC sheathed copper core (two-core) wire.

BV, BVR stands for common hard wire and soft wire: BV is PVC insulated single plastic wire, that is, our common single-core hard copper wire, BVR is PVC insulated multi-strand copper core soft wire, that is, our common single-core multi-strand soft copper wire.

BVV stands for two-core hard copper wire.

BVV and BV both belong to hard conductor insulated wires, hard conductor structure, convenient for laying pipes, but the soft characteristics are not good, especially the specifications and models with larger cross-sections, which are not conducive to bending, and are generally used for fixed and immobile laying applications. 1. BVV copper core polyethylene insulated sheathed insulated cable, home power plug, alias sheathed wire; In the case of a single core, it is a ring structure, and in the case of a multi-core, it is a flat structure; It is suitable for wires and cables used in AC current 450 750V and the following power systems, household appliances, instrument panels and communication products. It is also used to install cables.

The long-term allowable operating temperature of the wire core does not exceed +65 degrees. According to the specification, there are seven specifications and models of BVV wires in terms of cross-section from the square. BV copper core polyethylene insulated hard cable, generally used for single-core hard electric conductor unsheathed cable; B series products belong to the cable line, plastic copper core wire, suitable for rated voltage 450 750V and the following power system wiring, widely used in home decoration wiring.

Common specifications and models include square meters. 2. The similarities between BVV and BV cables: flame retardant, fireproof and low smoke and halogen-free characteristics.

Third, the difference between wires and cables Wires and cables do not have strict boundaries, generally the number of cores is small, the diameter of the commodity is small, the structure is simple called wire, there is no insulation layer called bare wire, others are called cables. A large conductor cross-section (more than 6 cubic millimeters) is called a large cable, a small one (less than or equal to 6 cubic millimeters) is called a small cable, and an insulated cable is also called a cloth wire.

BVV: Full name copper core conductor PVC insulated PVC sheathed cloth wire.

BV: copper conductor PVC insulated cloth wire.

The BVV has more sheath layers than the BV.

The former is a sheathed wire, and the latter is a single-strand wire without a sheath.

Excuse me, what does wire bv, b r, b v mean?

BV wire: refers to the copper core PVC insulated wire, is a general purpose single-core hard conductor pure line unsheathed cable, the implementation standard is GB T general purpose single-core unsheathed cable rated voltage: 300V 500V; 450V Wire:

It refers to the copper core PVC insulated soft sheath sheath wire, wire structure: conductor + insulation. BV is a single-core copper wire, which is hard and inconvenient for construction, but has high strength.

BVV wire: refers to the copper core PVC insulated PVC sheathed round cable, due to the decoration of the home now, it is generally used conduit, and then three copper wires (live wire, neutral wire, grounding wire) are laid through the conduit.

BVV cables** are a bit higher.

The model of the cable consists of eight parts:

1. Usage** It is not marked as a power cable, K is a control cable slip front, and P is a signal cable.

2. Insulation** Z oil-impregnated paper, X rubber, V polyvinyl chloride, YJ cross-linked polyethylene.

3. Conductor information** is not marked as copper, L is aluminum. Closed stool.

Fourth, the inner sheath ** Q lead package, L aluminum package, H rubber sheath, V polyvinyl chloride sheath.

Fifth, derivation** d does not drip flow, p dry insulation.

Sixth, the outer sheath **.

7. Special products** TH humid tropical, TA dry tropical.

8. Rated voltage unit: kv.

The full name of RVV cable is light copper core PVC insulated PVC sheathed flexible cable, also known as light PVC sheathed flexible wire, commonly known as soft sheathed wire, which is a kind of sheathed wire. r: stands for soft wire and soft structure meaning v:

PVC insulation V: PVC sheathed BVV cable is full name copper core PVC insulated PVC car sheath round sheathed line, also known as light PVC sheathed cable, commonly known as hard sheathed wire, is a kind of sheathed wire.

Structural differences: BVV wire is a copper wire with a large single cross-section, and RVV is a copper wire with a small single cross-section. For example, the sheath BVV inner core of 2* is a single copper wire BVV has 2 inner cores, the cross-section of each inner core is, and each inner core is 1 copper wire with a diameter RVV inner core is composed of many small filaments, RVV 2 inner cores, the cross-section of each inner core is, but each inner core is composed of 30 copper wires with a diameter of .

So BVV is harder than RVV.

The correct name of the BV wire is: copper core PVC insulated wire. From the inside to the outside, they are copper conductors and polyvinyl chloride, and polyvinyl chloride wraps the copper conductors inside, and polyvinyl chloride is our usual "plastic".

Core: oxygen-free copper (oxygen-free copper is one of the best conductive materials for wire and cable conductors on the market, with the advantages of good conductivity and high melting point).

The BV wire is a copper conductor PVC insulated wire.

BV wire: 1The classification and use are used to distribute the current, which belongs to the category of cloth wires and is represented by the letter "b";

2.The conductor material is copper, which is represented by the letter "T", and the copper core conductor in the cloth wire is omitted;

3.The insulating material is polyvinyl chloride, which is indicated by the letter "V";

4.The structure of the cloth wire is simple, in addition to the above three points, some also have a sheath, and the sheath material is polyvinyl chloride, which is also represented by the letter "V"; If the sheath material is rubber, it is indicated by the letter "X". There is no need to express if there is no sheath to destroy and what is not behind.

For example, BVV stands for copper core PVC insulated PVC sheathed round wire.

Copper conductor PVC insulated PVC sheathed round cable.

The 4 most commonly used sheath wire sizes:

BVV Copper Core PVC Insulated PVC Sheathed Round Cable (Wire)BLVV Aluminum Core PVC Insulated PVC Sheathed Round Cable (Wire)BVVB Copper Core PVC Insulated PVC Sheathed Flat Cable (Wire)BLVVB Aluminum Core PVC Insulated PVC Sheathed Flat Cable (Wire) Sheath Wire can actually be understood as two or three parallel BV wires, BV wires originally have insulating rubber sheets, Wrap another layer of rubber around the three or two parallel BV lines, and this layer of rubber is the sheath line.

Sheathed wire is also one of the most commonly used household wires, usually consisting of three or two cores.

BVV wire is a multi-core PVC insulated PVC sheathed copper core hard wire.

BVV wire is a kind of commonly used wire for decoration, commonly known as hard sheathed wire, compared with RVV soft sheath wire, its characteristic is naturally its "hard". The BVV line is commonly used in the decoration wiring, because it has an extra layer of sheath than the ordinary BV line, omitting the pipe and threading groove, and is safer, more convenient, fast and beautiful, so it has been welcomed by many decoration companies and home users.

BVV belongs to cables, and his full name is light PVC sheathed cable.

B represents the cable (or wire) for fixed laying, V (first) represents PVC insulation, and V (second) represents PVC sheath. From the material point of view, it belongs to the cable.

For details, please refer to Appendix B of "PVC Insulated Cables with Rated Voltage of 450 750V and Below GB T Part 1: General Requirements".

1. Cable BVV stands for copper core PVC insulated PVC sheathed round cable.

2. The cable is usually a rope-like cable formed by twisting several or several groups of wires [at least two in each group], each group of wires is insulated from each other, and is often twisted around a center, and the whole outer bread has a highly insulated covering layer. Most of them are erected in the air or installed underground or underwater, and are used for telecommunications or power transmission. In 1832, the Russian veteran officer Schullinger buried the telegraph line in the ground, and the six wires were insulated with rubber from each other and placed in glass tubes, which was the world's first underground cable.

Copper conductor PVC insulated PVC sheathed round cable (wire).

Wire & Cable: Copper conductor PVC insulated PVC sheathed round cable (BVV).