Why are different naming standards compatible for use in the international market?

Compatibility is fundamentally driven by technical performance equivalence. While a wire might be labeled BVR in China and H07V-K in Europe, both are manufactured to comply with IEC 60228 (Conductor resistance) and IEC 60332-1-2 (Flame retardancy). As long as the voltage rating (e.g., 450/750V), temperature range (e.g., 70°C, 90°C, or 105°C), and conductor flexibility (Class 5) align with the target country’s electrical codes, the wire is functionally interchangeable and safe for global panel building.