When it comes to wiring, many people don't understand the characteristics and uses of RVV wire, so today I'll explain what RVV wire is. What are the characteristics of RVV wires? And what are the uses of RVV wires?

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What is RVV wire?

RVV wire is called sheathed wire and is a more commonly used wire in electrical energy systems, often with two or more conductor cores, with a PVC sheath layer outside. The main function of the sheath layer is to protect the wire from mechanical damage and chemical corrosion and to increase the mechanical strength of the wire, which is why we call it RVV wire.

What are the characteristics of RVV wire?

Rated voltage: 300/500V

Conductor: Stranded copper wire grade 5

Insulation material: PVC

Sheath material: flexible polyvinyl chloride (PVC)

Operating temperature: -30+70 degrees

Number of copper core wires: 2~36

Root cross-section: 0.3-6.0mm2

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What is RVV wire used for?

RVV wire is suitable for use in building intercoms, entrance/exit control, card reading systems, electrical, instrumentation and electronic equipment and automation devices with a rated voltage of UO/U of 300/300V and below, or for the installation of soft wire connections. RV series meet the requirements of both Chinese and European standards. The tightly pressed sheathing process gives the wire better mechanical and physical properties and moisture resistance.

How to distinguish RVV wires

RVV wire is available in lengths of 100 metres. Of course there are 200 and 300 metres, but some manufacturers produce them in insufficient lengths. In this case, we can look at the mark on the RWV wire, which indicates the manufacturer, date of production, number of metres, cross-section, etc. We can also compare the thickness of the sheath and conductor. XSD Wire has specialised in cables and wires since . We can offer you the best prices and quality, and we can support customisation.

Usage of cable and wire

Wire and cable , especially PVC insulated cable (commonly known as plastic wire ) is the main carrier of power transmission , the use of very wide , especially in the " city network , rural power network transformation into the family line and home decoration indoor line is very large amount of raw material for production of polyvinyl chloride insulated wire and cable products mainly copper wire , aluminum wire and PVC insulation material (commonly known as plastic ) , therefore , the quality of their qualities will directly affect the PVC insulated cable products . The face of many enterprises cables products , consumers in the purchase and use should pay attention to the following points:

Check wire and cable step by step

First of all , should be trustworthy , good reputation of the product .  

Second , pay attention to product identification , to prevent counterfeit products . General PVC insulated cable product labels should be marked with the name and address , rated voltage , specifications , length and so on , especially in the cable wire should be printed with continuous marks including factory name , type , rated voltage , single line spacing should be not greater than 200 mm , sheath line marker spacing should be less than 500 mm .

Tird , buy PVC insulated cable products before , first of all to consider its good use . The general situation are that through the power of the electric appliance , the current of the wire is calculated and the size of the wire is selected according to the current . It's best to consult with an experienced and professional electrician , because the section carrying capacity and conductor wire , wire and materials (aluminum or copper ) , method of laying type , (surface or through pipe etc . ) and ambient temperature and so on , there are many factors affecting the complicated calculation .

Fourth , You can look at the cross section of wire , copper (aluminum ) core should be in the middle and the plastic layer thickness should be uniform . Then you can try the plastic strip wire end . If it is easy to strip , there may be plastic strength is not enough . The stripping of copper (aluminum ) core after that , can look at the copper (aluminum ) core materials , under normal circumstances the surface should be with metallic luster , if the white surface blackening of copper or aluminum surface is metal oxide . It is best not to sell . If possible , you can try to burn it . If the general lighter can burn , and no flame self extinguishing or self extinguishing time is longer . The wire is not burning , so the wires do not buy .

We need to buy good quality wire

Finally , in the use of plastic wire must correct wiring . Usually best by professional electrical wiring , their connection , pay attention to plastic wire joint should be firmly connected , not simply taped together , so electricity joint easy to heat , will lead to serious fire !

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