The International Electrotechnical Commission’s IEC60228 standard covers the nominal cross-section areas for the conductors of various insulated cables.
IEC60228 covers solid and stranded copper, aluminium and aluminium alloy conductors in cables for fixed installations and flexible copper conductors.

It focuses on the physical properties of the conductors, including their cross-sectional area, resistance, and the number and arrangement of strands within a conductor. This standard ensures that conductors in cables meet specific performance requirements for electrical safety and reliability.

Conductor Types: IEC 60228 covers various conductor types, including solid and stranded conductors made of copper, aluminum, and aluminum alloys.
Cross-sectional Area: It defines the nominal cross-sectional areas for different conductor sizes, ensuring a consistent range of sizes for various cable applications.
Resistance: The standard specifies the maximum allowable electrical resistance for each conductor size, which is crucial for minimizing power loss and ensuring efficient electrical transmission.
Stranding: IEC 60228 also addresses the construction of stranded conductors, specifying the number and arrangement of individual wires within a conductor.
Scope: While IEC 60228 is primarily for power cables, it doesn't cover conductors in telecommunication cables or specialized applications like coaxial cables.