Why are RV, BVR and BV Cables called weak current cables?

From a professional perspective, RV copper wire, BV hard wire and BVR insulated cable are all weak current installation cables certified by CCC national standards. Because of their reliability and high reliability in operation, guaranteed safety, and RV, BVR and BV lines have the characteristics of small current, high frequency and low voltage, so they are often used in telephone lines, network lines, cable TV lines, audio and other places in home decoration. Next, Zhengzhou Jinshui Industry And Commerce Co.,Ltd. introduces in detail the main parameters of BVR, RV, BV and other weak cables.

The difference between B and R is that the former is a fixed wiring cable (cable), and the latter is a flexible cable for connection. The conductor structure of the two is different.

Electrical conductor structure of BV, RV, BVR weak cables

BVR wire

BV: It is a single copper core cable with a copper wire. It is relatively hard and is also called a hard wire.
BVR: It is a single copper core cable made of multi-core copper wires twisted together, also called copper wire.
RV: It is also a flexible cable. It is a single copper core cable twisted together by many strands of thin copper wires. It is generally not needed for home decoration.

Rated voltage and main uses of BV, RV, BVR weak cables

RV wire is mainly used for electrode connecting wires in household appliances, with rated voltage of 300/500V or 450/750V;
BV wire is mainly used for home lighting circuit electrode connection wires, with rated voltage of 300/500V or 450/750V;
BVR wire is mainly used in distribution boxes, motors, etc., and can also be used for household lighting fixtures. The rated voltage is 450/750V.

BVR wire

Things to note when laying out weak cables

1.Centralized control

With the advent of the Internet and the information age, it is common for a family to install two phones or more than two machines to access the Internet. In order to ensure the connection quality of various lines and facilitate maintenance, a centralized control unit is designed for home telephone lines and network lines.

2.Reserve enough jacks when wiring

Taking into account the development and needs of family life, generally 1 to 2 jacks for buried telephone lines, network lines and cable TV lines should be reserved in the living room and each bedroom, and distributed on different walls to facilitate the placement of electrical appliances. Variety. Bathrooms and kitchens can also consider whether to reserve a phone jack as needed, and restaurants can also consider whether to reserve a reserved TV jack for watching TV while dining.

3.Weak current cables should avoid strong wires

Weak current signals are low-voltage electrical signals with poor anti-interference performance, so weak wires should avoid strong wires (power wires). According to national standards, the horizontal distance between power cords, sockets, TV cables, and sockets should not be less than 50 cm.

4.Pay attention to moisture-proof weak current cables

The lower edge of the socket should be about 30 cm from the ground. Generally speaking, these weak wires are often placed on the roof or under the floor. Therefore, to prevent moisture and make it easy to replace, these wires should have strong sleeves added to the outside, and check the wires for breaks or shorts before adding sleeves.

    In order to ensure the quality and safety of the project, the above four points should be paid attention to during the integrated wiring construction.

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