Insulated wire
Insulated conductor is used in the power transmission and distribution system, in the periphery of the wire evenly and sealingly wrapped in a layer of non-conductive materials, such as: resin, plastic, silicone rubber, PVC, etc., to form an insulating layer to prevent the conductor from contact with the outside world caused by leakage, short circuit, electric shock and other accidents, insulated wire is composed of metal conductors inside, usually copper or aluminum, while the outer layer is a layer of insulating material.
Compared to ordinary conductors, insulated conductors have better electrical insulation properties and prevent current leakage and interference, thus improving the safety and reliability of power systems. Insulated conductors are commonly used in high-voltage lines in power transmission and distribution systems, such as transmission lines and cables in substations.
R stands for soft copper wire, V stands for polyvinyl chloride insulation, S stands for double twisted, B stands for flat type, P stands for shielded.
1, RV – polyvinyl chloride insulation single-core flexible wire, the maximum operating temperature of 65 ℃, the minimum operating temperature -15 ℃, working voltage AC 250V, DC 500V, used as the internal wiring of instruments and equipment.
2, RVB: parallel multi-stranded flexible wire (flat), like the phone line often used at home bare wire, only the core and RVV core consistent, the two cores are wrapped in parallel in the sheath, usually a sheath of two
3、RVS：双绞多股软线，即RVB的软芯撕开、绞合。通常是两根双绞线。
4、RVSP: twisted shielded wire.
5、RVVB: polyvinyl chloride sheathed flexible wire (flat type), standard GB/T 5023.5-2008/IEC 60227-5:2003.
6, RVV: multi-stranded flexible wire, that is, the core consists of multiple strands of copper wire, RVV wire is the most commonly used cable for weak electrical systems, the number of cores is variable, there are single, there are multiple, there is also a sheath outside. But there are no special requirements for the arrangement between the cores.
7, RVVP: copper-core PVC insulated shielded PVC sheathed flexible cable, also called electrical connection anti-interference flexible cable, rated voltage 250V/450V.
8, BVVR is a copper-core PVC insulated PVC sheathed flexible wire, with an outer sheath; BVR is a copper-core PVC insulated flexible wire, only the insulation layer, no outer sheath. Usually said double plastic wire refers to the BVV series, the first V refers to polyvinyl chloride insulation, the second V refers to polyvinyl chloride sheathing, if the BV series refers to the single plastic wire.
Generally used insulated wire has the following kinds: 1:
1 rubber insulated wire Model: BLX – aluminum-core rubber insulated wire, BX – copper-core rubber insulated wire.
2 PVC insulated wire (plastic wire) Model: BLV – aluminum-core plastic wire, BV – copper-core plastic wire.
3. Rubber cable Model: YHC – heavy-duty rubber cable, NYHF – agricultural neoprene dragging cable.
Rubber insulated wire has copper core, aluminum core, single core, double core and multi-core. Used for house wiring, working voltage generally does not exceed 5OO volts.
Insulated conductors come in various forms, including overhead insulated conductors and underground insulated cables. Overhead insulated conductors are transmitted through overhead power poles or cable bridges, while underground insulated cables are buried in underground pipes or tunnels to transmit power signals. Different insulated conductors are suitable for different power transmission and distribution scenarios and are selected as needed.
Enameled wire products can be used in the power industry equipment, our company will participate in power exhibition every year, visit customers and show products
