Multicore cable

Multi-core cable refers to the cable with more than one insulated core. Cable plays an important role in electronic products and electronic systems. It is a key link to connect various functions of electronic products, and is widely used in aerospace and naval battleships and other fields.

Advantages of multi-core cable

Multi-core cable refers to the cable with more than one insulated core, which reduces the skin effect of the cable and thus reduces the loss of the line.

Skin effect of single core cable

When there is alternating current or alternating electromagnetic field in the conductor, the current distribution inside the conductor is uneven, and the current is concentrated in the "skin" part of the conductor, that is, the current is concentrated in the thin layer on the surface of the conductor. The closer the conductor is to the surface, the greater the current density, and the smaller the actual current inside the conductor. As a result, the resistance of the conductor increases, and its loss power also increases. This phenomenon is called skin effect. When the single-core cable is exposed to alternating current or alternating electromagnetic field, the skin effect is obvious and the line loss increases.

Welding of multi-core cable

After all the fabrication procedures are completed, the welding work can be started. Welding is the most critical and important step in the cable fabrication. Before welding, it is necessary to carefully check the cable identification and the installation and connection of the tail cover and other accessories. It is necessary to ensure that the wire is placed flat in the welding cup and strictly follow the welding sequence. The welding time is generally controlled within 3 to 5 seconds. After welding, if the welding quality is not up to standard, The second welding shall be carried out after the welding cup is cooled. After the welding is completed, clean it with anhydrous alcohol and dry it naturally. After the inspection is qualified, use tweezers to push the sleeve into the welded welding cup. At the same time, make up marks for later inspection