Why are different naming standards compatible in the international market?

Compatibility is driven by technical parameter alignment. While codes like DJYPVP and RE-2X(st)Y appear different, they are both manufactured to meet IEC 60332 (flame retardancy), IEC 60228 (conductor resistance), and IEC 60079 (explosive atmospheres). As long as the core cross-section (mm² or AWG), insulation material (PE, XLPE, or PVC), and shielding effectiveness match the project’s engineering blueprints, the cables are functionally interchangeable and safe for global integration.