Soft Core Cables And Hard Core Cables Have Different Carrying Capacities

The carrying capacity of soft core cables is larger than that of hard core cables. Under the same cross-section, the surface area of ​​flexible cables (cable flexible 4 core, 5 core flexible cable) is much larger than the surface area of ​​hard cables.

Because alternating current has a skin effect  (when there is alternating current or an alternating electromagnetic  field in a conductor, the current distribution inside the conductor is uneven, and the current is concentrated on the "skin" part of the conductor.

That is to say, the current is concentrated on the thin layer on the outside of the conductor, the closer it is The current density on the conductor surface is larger), so the current carrying capacity of flexible core cables (cable flexible 5 core 6mm, 8 core flexible cable, multicore flexible cable) is larger than that of hard core cables.

In addition, soft cables have better heat dissipation than hard cables due to their large surface area. Hard-core copper cables have poor heat dissipation and poor overload rate, but the wiring is reliable; soft-core copper cables have good heat dissipation and have a higher overload rate than single-core wires but are prone to virtual connections.