What are the main differences between Insulated single cords and cables in the field of strong electricity?

Insulated single cords are composed of one conductor, and their structure is relatively simple, mainly including one conductor, an insulation layer (sometimes also a sheath), and are mainly used for weak current transmission. This design makes single-core wires very flexible and convenient in the internal connection of small, low-voltage, and low-power equipment. Strong current cables contain multiple conductors and have a more complex structure. In addition to multiple conductors and insulation layers, there is usually an outer sheath to protect the cable from damage and interference from the external environment. This structure enables strong current cables to transmit higher-power signals and is suitable for long-distance, high-voltage, and high-current transmission scenarios.
Due to their structural limitations, Insulated single cords are mainly suitable for low-voltage, low-power transmission scenarios, such as internal line connections of electronic equipment, audio cables, TV interface cables, etc. They can transmit weak current signals, but are not suitable for high-power or long-distance transmission. Strong current cables have the characteristics of high voltage and high current resistance, and are mainly used to transmit high voltage and high current electrical energy. They are widely used in power systems, transportation, construction, industry and other fields, such as substations, transmission lines, subways, high-speed railways, large buildings, factories and other occasions.
Insulated single cords, although they have an insulation layer, their insulation and protection performance are relatively weak, and they mainly focus on the transmission and protection of weak current signals. High-voltage cables have higher requirements for insulation and protection performance. The insulation layer of the cable needs to have high insulation resistance and high breakdown electric field strength to ensure safety during high voltage and high current transmission. At the same time, the outer sheath can also provide additional physical protection and anti-interference capabilities.
Insulated single cords have high flexibility due to their simple structure and small size, and are suitable for installation and use in small spaces and tortuous paths. High-voltage cables are relatively rigid and difficult to install in tortuous paths because they contain multiple conductors and have a complex structure. They are more suitable for more direct and spacious installation environments.
There are significant differences between Insulated single cords and high-voltage cables in terms of the number and structure of conductors, transmission capacity and purpose, insulation and protection performance, flexibility and installation. These differences make them suitable for different application scenarios and transmission needs.