Wires and cables are widely used in electrical equipment, lighting lines and household appliances. They are the main medium of power transmission. Its quality is directly related to the quality of the project and the safety of consumers' lives and property. There are many types of wires on the market, and appropriate wires should be selected according to their respective power loads. Today, Baicai.com invited Chengdu Ruiqi Electrical Appliance Co., Ltd. to share with you: the models and uses of wires and cables, the advantages and disadvantages of soft and hard wires, and where to buy wires and cables the most affordable!
1. What are the models and uses of common wires and cables?
1. The cable model consists of eight parts:
(1) Use code-not marked as power system cable, K is the control cable, P is the signal cable;
(2) Insulation part code-Z oil immersion paper, X rubber, V polyvinyl chloride , YJ cross-linking density polyethylene;
(3) Conductor material code-not marked as copper L is aluminum;
(4) Inner sheath code-Q lead package, L aluminum package, H rubber sleeve, V polyvinyl chloride synthetic sheath;
(5) Derived code - D does not drip, P dry insulation;
(6) outer sheath code;
(7) Special product code - TH wet tropical, TA- dry tropical;
(8) Rated voltage - unit KV
2, use of various cables
(1) Signal control cable (RVV sheathed cable, RVVP shielded cable) is suitable for building intercom , anti-theft alarm, fire protection, automatic meter reading, etc.
(2) RVVP copper core polyvinyl chloride for insulating material shielded polyvinyl chloride synthetic sheath soft cable working voltage 300V/300V2-24 core
Purpose: Instruments, instruments, intercoms, monitoring and control devices;
(3) KVVP: polyvinyl chloride sheath braiding technology shield network cables main uses: electrical appliances, instruments, distribution system devices for transmission, control and measurement;
(4) RVV: polyvinyl chloride insulated soft cables use: household appliances, small power tools, instruments and power lighting;
(5) RVS and RVB are suitable for electrical appliances, small power tools, instruments, instruments and power lighting connection cables;
(6) BV and BVR: suitable for electrical instruments and equipment and power lighting fixed wiring;
(7) KVV: PVC insulation internal control: electrical appliances, instruments, and power distribution system devices transmit, control and measure through signal data.
2. What are the advantages and disadvantages of soft and hard wires?
1. From the perspective of the wire appearance,
soft wire is also called sheathed wire. It is usually made of multiple strands of copper wire. The diameter of copper wire is less than 1mm. hard wire is a single strand of metal wire that is thicker, usually directly exceeding 1mm.
2. From the essence of the wire
soft wire wire is thinner and softer, which is easy to turn and penetrate the pipe, but it will easily age over time and affect the overall life of the circuit.
hard wire is actually smaller in cross-section, resistant to short-circuit current, and the hard wire is not easily oxidized and has a relatively long life than the soft wire, but the hard wire itself is harder and is not easy to bend and pass through the pipe.
3. Where can I go to wholesale and purchase high-quality wires and cables?
In the context of China's economy entering the era of liberalization, many wire and cable manufacturers have reduced or even given up independent research and development technologies and products in order to compete for market interests, resulting in serious homogeneity of China's wire and cable industry, etc. This phenomenon is unfavorable to the development of my country's cable industry. Chengdu Ruiqi Electric Co., Ltd. focuses on the supply of engineering wires and cables. It can customize cables, select cable products, and provide engineering guidance and installation according to project needs. If you purchase wires and cables, go to Baicai.com to search Chengdu Ruiqi Electric Appliances to provide you with one-stop service for engineering cable procurement.
Above is related to wires and cables. I hope this article can provide reference and help to friends who are about to purchase such wires and cables. If you want to know more about engineering materials knowledge or industry information, please move to the APP/website.
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