What does wired rvv mean?

Rvv line is made of a sheath outside rv line, which belongs to sheath line. The number of its core wires is not fixed, generally two or more, so it is also called multi-strand copper-core flexible wire. The letter R stands for flexible wire and the letter V stands for insulator, that is, polyvinyl chloride (pvc). Rvv line is the most commonly used in weak current system.

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Wire selection and responsibility

1, look at the appearance mark.

It is stated in the relevant standards that the name, model and rated voltage of wire products must be clearly marked on the surface, so that if there are problems in the use process, you can contact the manufacturer in time and conveniently to solve them, which can better ensure the rights and interests of consumers and the safety of use. Of course, it is not enough to look at the surface, but also to see whether the information is consistent with the certificate.

2. Look at the surface and the kernel

When purchasing household wires, we can judge their advantages and disadvantages by their surface and inner core. The surface should be smooth and flat, the inner core should be thick, and there is no eccentric core. We need to observe all the details carefully when buying. If it is worn, illegible and uneven in thickness, it is not suitable for purchase.

3. Look at the plastic outside

Wires are related to the use of electricity, so they are very important in terms of safety. In order to avoid electric shock, insulation measures must be taken, and the outer plastic must be insulated.