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WeiKeru Cable Co., Ltd. is the original Renqiu Hualong Cable Factory, which was founded in 1998. It is located in the Beijing-Tianjin-Baojiao Trade Fair, adjacent to the Beijing-Kowloon Railway... -
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The market share is increasing year by year, and the products are sold in 26 provinces, cities and regions across the country. High-quality products and sound after-sales services have been selected by key projects...
What are the advantages of single-core cables and multi-core cables?
Release Time:
Jun 02,2023
The advantages of single-core cables are small cross-sectional area ratio, not easy to oxidize, short-circuit capacity impact resistance, and long service life. The disadvantage of single-core wires is that the wire is relatively hard, and it is difficult to pull the wire in some places, so it is difficult to straighten after bending, and it is easy to damage the wire after repeated bending. Advantages of multi-core cable Multi-core cable refers to a cable with an upper insulating layer of copper core cable
The advantages of single-core cables are small cross-sectional area ratio, not easy to oxidize, short-circuit capacity impact resistance, and long service life. The disadvantage of single-core wires is that the wire is relatively hard, and it is difficult to pull the wire in some places, so it is difficult to straighten after bending, and it is easy to damage the wire after repeated bending. Advantages of multi-core cable Multi-core cable refers to a cable with an upper insulating layer of copper core, which can reduce the skin effect of the cable, thereby reducing line loss.
The disadvantages of multi-core cables are poor strength, easy to break, poor surge resistance, and inconvenient forming. Single-core or multi-core cables are the best wires with the same cross-sectional area. The cost of single copper core cable is cheaper than multi-copper core cable, while the cost of multi-copper core cable is slightly higher.
Single copper cables look a bit stiff when installed and conduit, while multi-copper cables should be softer and have stronger wires. After installation, single-core and multi-core are similar in specific applications.
The difference between multi-core cables and single-core cables is that in terms of circuit capacity, the rated current capacity of single-core cables is greater than that of three-core cables with the same cross-section; in terms of insulation performance, both single-core and three-core cables need to meet national standards. Under the premise of meeting the national standards, a certain safety margin needs to be left, which can be understood as the insulation performance is qualified and there is no difference;
In terms of cable use, the heat dissipation performance of single-core cables is greater than that of three-core cables (cables of the same type), plus the rated current carrying capacity of single-core cables of the same cross-section > three-core cables, which can be achieved under the same load or short circuit conditions Next, the calorific value of a single-core cable is less than that of a three-core cable, which is safer to use;
In terms of cable laying, single-core cables are more convenient to lay and easier to bend, but the difficulty of laying long-distance single-core cables is greater than that of three-core cables;
From the installation of the cable head, the installation of the single-core cable head is easier and the wiring is convenient;
multi-core cable
A multi-core cable is a cable with more than one insulated core. Cables play an important role in electronic products and electronic systems. They are the key links connecting various functions of electronic products, and are widely used in aerospace, marine warships and other fields.
single core cable
Single core means that there is only one conductor in one insulating layer. When the voltage exceeds 35kV, most single-core cables are used. The relationship between its core and the metal shielding layer can be regarded as the relationship between the coil and the iron core in the primary winding of a transformer. When the single-core cable core passes current, there will be magnetic force lines interlinked with aluminum cladding or metal shielding layer, causing induced voltage to appear at both ends of it.
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