How is the RVV power cord applied?

RVV wire refers to light-weight polyvinyl chloride insulation layer, also known as cable copper wire PVC insulation layer PVC sheathed flexible cable, is a sheathed wire, which consists of two or more cables in a sheath. Two RV lines above the composition. RVV wire letter R stands for flexible wire, letter V stands for insulator polyvinyl chloride (PVC). Rated voltage of RVV: 300V/500V. Generally speaking, RVVs with small specifications are called wires, and those with larger specifications are called cables.

RVV wires are habitually called sheathed wires or power plugs. They are multi-strand flexible wires with good flexibility and strong applicability. RVV wires are mainly used for medium and light mobile appliances, instrumentation, household appliances, and power lighting. It can transmit control signals and power signals, and is also suitable for laying in bridges and hoses. It is the most commonly used cable for weak current systems.

The number of RVV wires is not fixed, there are two or more wires, and there is a PVC sheath on the outside. There is no special requirement for the arrangement between the core wires. RVV wires come in a variety of colors: red, yellow, green, blue, black, yellow-green bicolor. This kind of power cord is the most commonly used wire and cable in the weak current system, and the internal cores can have various specifications such as 2 cores, 3 cores, 4 cores, and 6 cores. The RV wires in the RVV wires are generally in a parallel state without twisting.

1.Below, we will introduce in detail the three types of sheathed wires commonly used in the market: flame retardant type, low smoke and low halogen type, and fireproof type.

(1) The characteristics of the flame-retardant type are that the cable is not easy to catch fire or the ignition will be limited to a small range, and it is suitable for places with strong flame-retardant performance regulations.

(2) The fireproof type can maintain normal operation for a certain period of time in the event of fire, in addition to working in the normal natural environment.

(3) The low-smoke and low-halogen type has the characteristics of low-smoke and low-halogen. Specifically, it means that the toxic gas and gray-black smoke released during combustion are very small, which can improve the reliability of fire escape and fire safety.

2.RVV wires are also divided into the following three types of power wires according to the internal filling structure:

(1) RVV shroud power cord is often applied to weak current installation cables in video surveillance systems, mainly for the effect of power supply. At present, there are generally additional power cords and extruded power cords on the market.

(2) The RVV rechargeable power cord refers to the power cord with plastic rope or protective paper to fill the gap inside. Generally, it is all inflammable and explosive materials, which may not be safe in application.

(3) The RVV extruded power cord refers to the interior of which is immediately filled with a PVC material vacuum pump, and is extruded with an extruded mold shell. It has a compact structure, a shiny appearance and is not easy to be damaged.

In the whole process of applying the power cord, the resistor of the electrical conductor does not meet the regulations, which will cause the power cord to overheat during operation. The material of the power cord is generally divided into two materials: copper-clad aluminum and oxygen-free copper. The resistor of copper-clad aluminum material is higher than that of oxygen-free copper material, and the power cord of copper-clad aluminum is very easy to be oxidized by air, and the service life is not long.

RVV is used to protect the inner core of the wire and cable from being damaged and cracked during transportation and use, and to avoid the corrosion of various chemical solvents. Improve the compressive strength of the cable.

RVV power cord part of the grommet is damaged, if the skin damage is caused by water vapor seepage, it will cause slow damage to the interior of the power cord, resulting in a gradual decrease in insulation performance, and also lead to overheating of cables and wires during operation.

When the power cables are routed, if the order is too concentrated, the actual effect of natural ventilation and heat removal is not very good, or it is too close to other heat sources.

Choosing a suitable type of sheathed wire can make the power circuit more efficient and consider the safety requirements of the power circuit in various places. Jinshui Wire&Cable Group is a wire and cable manufacturer specializing in the production of RVV wires, Jinshui Wire&Cable Group can produce more than 1400 types of cables and wires in scores of categories. We mainly have the following quality products with strong international competitiveness: Aluminum rod for electrical purpose , hard drawn copper conductors, all aluminum conductors (AAC), aluminum conductors steel reinforcement (ACSR), all aluminum alloy conductors (AAAC), aerial bundled cables up to 1kV (ABC), PVC insulated wire and flexible wire, welding cable, control cable, rubber insulated cable, rubber insulated flexible wire, PVC insulated power cable, XLPE insulated power cable up to 220kV and cable accessories.