my country widely uses national standard wires and cables, whose specifications are very detailed. Wires and cables used in various industries have very clear model numbers, which we will describe in detail.
BVR/BV Wires
In the home improvement sector, fixed wiring generally uses national standard wires and cables, such as single-conductor insulated wires with model numbers BV and BVR. These wires are widely used in residential power and are also sold by market distributors. Generally, the specifications are 2.5mm², 4.0mm², 6.0mm², and 10.0mm².
In the electrical product sector, some electronic circuits and sheathed circuits are widely used. Electronic circuits primarily serve as internal connections for electrical appliances, have low current carrying capacity and low withstand voltage. Common types include automatic voltage regulators, automatic voltage regulators, and automatic voltage regulators. Common specifications range from 0.5mm² to 6.0mm². Sheathed cable is primarily used for high-power power wiring in electrical products, such as the plugs used in household appliances. Commonly used cables include 51RVV and RVV. Specifications include 2-core and 3-core cables, with 0.75mm², 1.0mm², and 1.5mm² being the most common.
RVV Cable
Power cables are widely used in heavy industry, distributing high-power electrical energy in applications such as power stations, photovoltaic power generation, industrial and mining industries, and urban underground power grids. Power cable products are available in various voltage levels, ranging from 1 to 500 kV and above, and come in a wide variety of insulated power cable types, including YJV, YJV22, YJY23, VV, ZR-VV, and ZR-VVR.
The above information summarizes the commonly used models and specifications specified in national standards.
