Power line: is the transmission of current wire, by the outer sheath, inner sheath, copper wire composition.

1. RVV

Full name copper core polyvinyl chloride insulated polyvinyl chloride sheathed flexible cable. RVV wire, round appearance, more cores, and there are twists between the two cores. R stands for flexible wire and the letter V stands for insulator polyvinyl chloride (PVC). RVV cable Main use: Used in electrical, instrumentation and electronic equipment and automation devices do not need to shield power lines, control lines and signal transmission lines.

Commonly used RVV wire models are: RVV2*0.5,RVV2*0.75,RVV2*1.0, such as: RVV2*1.5 -- 2 indicates 2 cores, 1.5 indicates the cross-sectional area of a core (unit is ㎜²)


2. RVVP

Full name copper core polyvinyl chloride insulated polyvinyl chloride shielded flexible cable. It is suitable for communication, audio, broadcast, sound system, anti-theft alarm system, intelligent automation system, automatic meter reading system, fire protection system and other anti-interference line connection, safe transmission data cable. The letter R stands for flexible wire, the letter V stands for insulator polyvinyl chloride (PVC), and the letter P stands for shield. RVVP can be used specifically for control lines in monitoring systems, access control systems, building video intercom systems, and building control systems.

Differences between RVV and RVVP:

Compared with RVV, RVVP has a layer of shielding braid net. PVVP wire has a mesh copper wire layer as a shielding layer between the inner and outer sheath ---- Shielding layer is mainly to prevent the influence of external electromagnetic fields to improve the anti-interference balance of the wire.

3. AVVR cable

Full name copper core PVC insulated PVC sheathed installation flexible cable. Usually used for weak power supply.

Differences between RVV and AVVR:

AVVR and RVV are the same wire. Models above 0.5 square are classified as RVV (including 0.5 square) Models below 0.5 square are classified as AVVR.


4. BV

The full name of copper core PVC insulated wire, BV wire is also referred to as plastic copper wire, of which B represents the category, belongs to the wire, V represents the insulation of PVC, generally suitable for AC voltage 450/750V and below electrical instrumentation equipment and power lighting fixed wiring and other power supply.

BV line is divided into: ZR-BV and NH-BV

1)ZR-BV: copper core PVC insulated flame retardant wire: insulation material with flame retardant, leaving the open flame does not spontaneously ignite. Flame retardant BV line is divided into A, B, C, D four grades, of which A class, and so on, commonly used for ZB-BV.

2)NH-BV: copper core PVC insulated refractory wire: it can be used normally under normal fire conditions.

5. BVR

BVR PVC insulated flexible wire. BVR wire, generally referred to as BVR power cord, is a copper core polyvinyl chloride insulated soft wire, which is used in fixed wiring requirements for soft occasions. B refers to the classification of cloth wire, V refers to PVC polyvinyl chloride, also commonly known as "plastic", R refers to soft meaning, to be soft, it is necessary to increase the number of conductor roots.

According to the material selected, BVR wire is also divided into flame retardant wire (ZR-BVR), fire resistant wire (NH-BVR), low smoke halogen-free wire (WDZ-BVR). Mainly suitable for electrical instrumentation equipment and power lighting fixed wiring.

Differences between BV and BVR:

A. From the production process,BV is single core, BVR is multi-core, in the production, BVR is a little more complex than BV.

b. In terms of price, BV and BVR are a little more expensive than BV because they are only in the process.

c. In terms of performance, BV is basically the same as BVR, and BVR is slightly heavier in weight.

6. UL 2464

Multi-core shielded cable for computer connection.

7. RVB

RVB is flat unsheathed flexible wire, commonly known as red and black (parallel) wire. Suitable for household appliances, small power tools, instruments, meters and power lighting connection electricity.

8. RVVB

RVVB is flat sheathed flexible wire, RVVB and RVB use the same, the difference is that RVB is flat unsheathed flexible wire, and RVVB is flat sheathed flexible wire, so RVVB more than RVB sheath layer.

9. RVS

RVS wire full name: copper core polyvinyl chloride insulated stranded connection with soft wire, twisted strands of flexible wire, referred to as twisted pair, commonly known as "flower wire", this type of wire is used in fire fighting system at this stage, also known as "fire line". The letter S stands for twisted pair, the letter R stands for flexible wire, and the letter V stands for polyvinyl chloride (insulator).

Uses of RVS Twisted pair:

1. Detector line for fire automatic alarm system

2. Suitable for household appliances, small power tools, instruments and power lighting lines. Double white core is used to directly connect the lamp head wire; Red and blue core for fire, alarm, etc.; Red and white core for broadcasting, telephone lines; Red and black cores are used for broadcast lines.

3. It is used to connect power amplifier with audio equipment and broadcast system to transmit audio signals amplified by power amplifier.

The difference between RVS and RVB is that RVB is a parallel cord and RVS is a twisted-pair cord

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable, computer cable, BV wire and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098