Iec 60228 Fixed Jun 2026

for cable conductors. It has enabled global trade and consistent electrical performance for decades. If you specify or manufacture cables for international markets, this standard is non-negotiable. Its weaknesses (lack of AC correction, tinned copper omission) are minor and addressed by companion standards.

By focusing on resistance rather than just physical dimensions, the standard ensures that a wire performs electrically as promised, regardless of whether it is solid or stranded.

(formerly IEC 228 ) specifies the nominal cross-sectional areas, construction requirements, and maximum electrical resistance for copper and aluminum conductors used in insulated electric cables. It is the foundational reference for conductor sizing in low- and medium-voltage cables worldwide. iec 60228

These are the most flexible conductors defined by the standard. They utilize a very high number of extremely fine strands. Class 6 is reserved for applications requiring frequent movement or extreme flexibility, such as charging cables for mobile devices, earphone wires, or cables on moving robotic arms.

(Note: Classes 3 and 4 were historically present but are largely obsolete or reserved for specific legacy applications in modern revisions.) for cable conductors

Ensuring that a cable manufactured in Germany works perfectly with a terminal block made in Japan requires a universal language. This is where comes in.

for each nominal cross-section. This ensures that the conductor can safely carry its rated current without overheating. Its weaknesses (lack of AC correction, tinned copper

The most recent version is the fourth edition, (often adopted in Europe as EN IEC 60228:2024 ). Core Scope and Applications

The most distinct feature of IEC 60228 is its classification system, which groups conductors based on their flexibility and construction. This classification is identified by a simple number: