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What is the difference between BV and BVR?

Updated:11-06-2021
Summary:

Every family in life can’t avoid decoration. If the hou […]

Every family in life can’t avoid decoration. If the house you want to decorate is the ideal one in your heart, then building materials and wires are definitely indispensable. The quality of the wires directly affects the safety of life. HaiyanYoli cable editor reminds you that you are in the process of decoration. The wires must be taken seriously. The following HaiyanYoli wire and cable editor will introduce to you, the difference between single-core and multi-core, the difference between BV and BVR, the identification method of quality copper wire, and the common sense of decoration and wiring.
Home improvement line configuration 
The difference between BVV and BV lines:
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.
The letter B represents cloth wires, and the letter V represents polyvinyl chloride in plastics. There are also copper core symbols, hard wires (common single-core conductors) symbols are omitted and not shown.
Wire structure specification: The difference between BVV and BV line is that BVV has an extra layer of sheath than BV. It is suitable for cables and wires used for AC voltage 450/750V and below power plants, household appliances, meters and telecommunication equipment. The long-term allowable working temperature of the core does not exceed 65 degrees. Its nominal cross section is divided into 0.75; 1.0; 1.5; 2.5; 4; 6; 10 in seven specifications from 0.75 to 10 square.
Wire use: bvv hard sheathed wire is suitable for cables and wires for AC voltage 450/750V and below power plants, household appliances, meters and telecommunications equipment, and also used for surface-mounted wires.
HaiyanYoli wire and cable shares common sense of wiring at home:
Line classification: In general decoration, red is the live line, any one of blue, green, and colors is the zero line, and the two-color line is the ground line.
Conventional circuit: In the conventional circuit design, 1.5 square meters are used for lighting circuits, and 2.5 square meters are used for socket circuits.
Weak electricity and strong electricity: Weak electricity and strong electricity cannot be worn in a tube.
Obviously walking and not wearing it is effective: walking obviously and not wearing official use is generally used for construction or high-power air conditioners, generally rarely used
The above is the editor of HaiyanYoli Wire and Cable to introduce the difference between BV and BVR for home improvement and home improvement and the little knowledge of home improvement. I hope it will be helpful to everyone.
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