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Introduction: It boasts excellent thermal and mechanical properties, outstanding electrical performance, and superior resistance to chemical corrosion. At the same time, it features a simple structure, lightweight design, and is not constrained by deployment limitations due to height differences. It is widely used in urban power grids.
BVR flexible single-core multi-strand wire for home decoration
1. BVR stands for copper-core polyvinyl chloride insulated flexible wire.
2. The internationally standardized BVR cable is a copper-core, polyvinyl chloride insulated flexible wire designed for applications requiring flexibility in fixed wiring installations. BVR cable is a type of flexible wire specifically used in distribution cabinets; it’s also referred to as secondary wiring.
3. It is suitable for fixed installations in power systems with an AC rated voltage of 450/750V or lower, such as residential lighting. Fixed wiring can be used in indoor exposed installations, conduit runs, and other similar scenarios. To facilitate differentiation during installation, BVR cables are available in seven colors: red, yellow, blue, green, black and white, and dual-color combinations. Due to its soft structure, BVR cable is particularly well-suited for use in flexible environments.
4. The only difference between BVR cable and BV cable lies in the conductor design: R-type cables have conductors made of soft copper strands. Specifically, the number of conductor strands is increased while the diameter of each individual strand is reduced, with the diameter of any single strand being less than 1 millimeter. As a result, BVR cable is exceptionally flexible, significantly reducing the minimum bending radius required compared to BV cable. This makes it easier and faster to thread through conduits and cable trays, lowering labor intensity and greatly improving work efficiency.
RVVB Copper-Conductor Polyvinyl Chloride Insulated Polyvinyl Chloride Sheathed Flat Flexible Cable
R: Indicates a flexible cable, with conductors made of multiple strands of soft copper wire twisted together.
First V: The cable insulation material is polyvinyl chloride (PVC).
Second V: The cable sheath material is polyvinyl chloride.
B: Flat cable— the cable has a flat shape.
WDZ-BYJ Environmentally Friendly Low-Halogen, Smoke-Free, and Fire-Resistant Wire
The cable model WDZ-BYJ stands for low-smoke, halogen-free wire.
Low-smoke, halogen-free refers to a classification of materials used for wire and cable jacketing in the wire and cable industry. Low-smoke, halogen-free wire jackets are composed of thermoplastic or thermosetting materials that produce minimal smoke when heated and do not contain halogens themselves. The reference standard for low-smoke, halogen-free wires is JB/T 10491-2004. Common models include WDZ-BYJ and WDZ-RYJ, and many domestic manufacturers already have the production capacity to meet this demand.
DW: "Low-smoke, halogen-free" means that the toxic fumes produced by the insulation and protective layer materials when burned are below the required levels, making these cables suitable for power distribution in large public spaces (such as major shopping malls).
The jacketing material of network cables is typically made from polyethylene, polyvinyl chloride, or thermoplastic polyurethane. If such chlorine-containing plastics catch fire, they will release toxic hydrogen chloride gas, which can turn into hydrochloric acid upon contact with water. Low-smoke, halogen-free materials significantly reduce the emission of toxic and corrosive gases during combustion.
Characteristics of low-smoke, halogen-free wires:
1. Non-toxic—containing no harmful substances whatsoever.
2. Long service life—resistant to aging, with a lifespan exceeding 100 years.
3. High temperature resistance—operating at temperatures up to 150 degrees Celsius.
4. Flame retardant—achieved through irradiation crosslinking technology, giving the wires flame-retardant properties.
5. Compliance with environmental standards—meeting both EU and Japanese environmental standards.
6. Low smoke—when burned, the wires emit only a faint mist of water vapor, with visibility exceeding 60 meters.
BV hard-wired single-core single-strand household electrical wire
BV wire, also known as copper-core polyvinyl chloride insulated wire or "plastic copper wire," features a core made of oxygen-free copper encased in a polyvinyl chloride sheath. It is characterized by its relatively rigid structure and long service life, as well as excellent resistance to oxidation, moisture, and oil. BV wire is widely used in household appliances, power supply systems, lighting, and other applications. It is one of the most commonly used types of electrical wire. However, its major drawback is that it cannot be repeatedly bent without significantly shortening its lifespan.
Fire-resistant twisted pair cable
RVS is a type of twisted pair cable, commonly known as "flower wire"—it’s a two-core wire formed by twisting together two RV flexible wires. Normally, we rarely come across RVS twisted-pair cables. Perhaps friends who grew up in rural areas might remember them, because many households in rural areas (and even today) used to make simple lighting cables out of twisted-pair wires—for instance, when temporarily stringing a wire across an open space for lighting purposes, RVS twisted-pair cables were often the go-to choice.
BVV double-layer single-strand solid wire
The BVV wire, commonly referred to as hard-sheathed wire, is often used for exposed wiring installations. Its conductor is made of high-purity, oxygen-free copper rods or premium-grade aluminum rods. The insulation material is an excellent-grade PVC compound, and the outer sheath is made of high-environmental-compatibility PVC. This type of wire is primarily used in household appliances, interior decoration, power and lighting systems, small electric tools, instrumentation, and other similar applications.
BVV stands for copper-core polyvinyl chloride (PVC)-insulated, PVC-sheathed wire.
Wires and cables refer collectively to insulated conductors used in general electrical equipment.
The core materials are copper or aluminum. The insulation layer, as well as the inner and outer sheaths, are typically made of polyethylene, polyvinyl chloride, or rubber. For outdoor use, armored cables are available; for signal transmission, shielded cables are used.
Flame-retardant household wire ZR-BVVR
BVVR refers to a type of flexible wire that features copper conductors inside and has an outer sheath and insulation made of polyvinyl chloride (PVC). This type of wire is particularly well-suited for applications where flexible wiring is required, which is why it’s widely used in residential electrical installations. In addition to its excellent oil resistance and moisture-proof properties, BVVR also boasts strong resistance to acids and alkalis as well as superior mold resistance. There are various types of wires available on the market, and each type differs in terms of performance and suitable applications. Therefore, it’s crucial to select the appropriate wire type based on your actual usage environment and specific needs when carrying out installation.
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