There are a wide range of cable models, and the pr

2022-07-22
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Today I want to explain the relevant knowledge of cables. With the rapid development of power engineering, higher requirements are put forward for cable protection. The cable protective sleeve is made of polyethylene PE and high-quality steel pipe through sand blasting pretreatment, plastic dipping or coating, heating and curing process. It is the most commonly used electrical insulating tube to protect wires and cables. It is widely used because it has good insulation performance, high chemical stability, no rust, no aging, and can adapt to harsh environments

in life, cables can be said to be everywhere. Cable is a kind of material that supplies power for us, so we should be cautious about circuit engineering when we decorate at home. In order to make the circuit well, it is necessary for us to understand the relevant knowledge of wire model and purpose before buying. Of course, the wire models used in different places are also different. If you don't know much about the complete set of cable models and uses, you might as well follow me to learn about it

cable definition

what is a cable? Cable has two meanings: definition 1 It is made of one or more mutually insulated conductors and insulated protective layers, and it is a wire that transmits power or information from one place to another. Definition 2 It is usually a rope like cable twisted by several wires or groups of wires. Each group of wires is insulated from each other and often twisted around a center. The whole outer surface is covered with a highly insulated covering layer

cable classification

what are the cable classifications? Cables mainly include: compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single strand or multi strand conductors and insulating layers, which are used to connect circuits, electrical appliances, etc

cable uses

1. It mainly includes overhead bare wires, bus bars (buses), power cables (plastic cables, oil paper power cables (basically replaced by plastic power cables), rubber sheathed cables, overhead insulated cables), branch cables (replacing some buses), electromagnetic wires, and electrical equipment wires and cables for power equipment

2. Cables mainly include local telephone cables, TV cables, electronic cables, RF cables, optical fiber cables, data cables, electromagnetic cables, power communication or other composite cables

3. Except for mechanical equipment and instrument system, almost all other products are used, but mainly power cables, electromagnetic wires, data cables, instrument cables, etc

cable model Daquan

bv– Copper core PVC insulated cable (wire)

bvr– Copper core PVC insulated flexible cable (wire)

bvv– Copper core PVC insulated PVC sheathed round cable (wire)

bvvb– Copper core PVC insulated PVC sheathed flat cable (wire)

bv-105– Copper core heat-resistant 105 degree PVC insulated wire

bv-zr copper core Flame-retardant PVC insulated wire

bvr-zr copper core Flame-retardant PVC insulated flexible wire

bvv-zr copper core Flame-retardant PVC insulated PVC sheathed round cable

bvvb-zr copper core Flame-retardant PVC insulated PVC sheathed flat cable

bv-zr-105 copper core heat-resistant 105 degree flame-retardant PVC insulated wire

bvr-zr-105 copper Core heat-resistant 105 ℃ flame-retardant vinyl chloride insulated PVC sheathed round flexible cable

bvv-zr-105 copper core heat-resistant 105 ℃ flame-retardant PVC sheathed round cable

av-zr-105 copper core heat-resistant 105 ℃ flame-retardant PVC insulated installation wire

avr-zr-105 copper core heat-resistant 105 ℃ flame-retardant PVC insulated installation flexible wire

av-zr copper core Flame-retardant PVC insulated installation wire av-zr copper core Flame-retardant PVC insulated installation wire Install flexible wire

rvb– Copper core PVC insulated flat connection flexible wire

rvs– Copper core PVC insulated twisted flexible wire

rvv– Copper core PVC insulated PVC sheathed flat connection flexible cable (wire)

how to distinguish the quality of the cable

there are many varieties, specifications and prices of wires in the market, so it is very difficult for consumers to choose. In terms of the price of 2.5 mm2 and 4 mm2 copper core wires commonly used in home decoration, the price of a coil of wire with the same specification can vary by 20% to 30% due to different manufacturers. As for quality and length, it is more difficult for consumers to judge

according to professionals, the price difference of wires is huge, which is mainly caused by the difference of raw materials. The main raw materials are electrolytic copper, insulating materials and sheath materials. In the raw material market, the electrolytic copper varies from 50000 yuan per ton, while the recovered miscellaneous copper varies from 40000 yuan per ton; The price of high-quality products of insulating materials and sheath materials ranges from 8000 yuan to 10000 yuan per ton. The price of defective products ranges from 4000 yuan to 5000 yuan per ton. In addition, insufficient length and insufficient glue content of insulator are also important reasons for price differences. The length of each coil is 100 meters for superior products and only 90 meters for inferior products; The rubber content of insulator is excellent, accounting for 35% to 40%, while the defective product is only 15%. Through comparison, it is not difficult for consumers to see that the difference in the sales price of finished wires is caused by the greasy material

note: this price is for reference only! Due to different regions, of course, the price will also vary. For more price details, please refer to the local dealer

editor's summary: the above is the introduction of the relevant knowledge of cable model Daquan industry insiders: how to identify the quality of cables, hoping to help friends with this need! If you need more relevant information, please continue to follow our website, and more wonderful content will be presented in the future

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