IEC 60228:2004标准规定了电缆导体的尺寸、材料、电气性能和机械性能等方面的要求。该标准要求电缆导体必须由高质量的电解铜或铝制成，以确保导体的电气性能和机械性能符合国际标准。此外，该标准还规定了电缆导体的截面积、直径、绝缘厚度和导体电阻等参数的要求。

IEC 60228:2004标准还规定了电缆导体的测试方法和测试要求。电缆制造商必须对每个电缆导体进行测试，以确保其符合国际标准。测试包括导体电阻测试、导体直径测试、绝缘厚度测试和机械性能测试等。此外，该标准还规定了电缆导体的包装和标记要求，以确保电缆导体能够被正确地识别和使用。

IEC 60228:2004标准适用于各种类型的电缆，包括低压电缆、中压电缆和高压电缆。该标准的要求适用于所有电缆制造商，无论其规模大小。电缆制造商必须遵守该标准的要求，以确保其生产的电缆符合国际标准，以确保电缆的安全和可靠性。

相关标准
- IEC 60227:2007 [Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V]
- IEC 60502-1:2004 [Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)]
- IEC 60811-1-1:2012 [Common test methods for insulating and sheathing materials of electric cables - Part 1-1: General application - Measurement of thickness and overall dimensions - Tests for determining the mechanical properties]
- IEC 60811-2-1:2012 [Common test methods for insulating and sheathing materials of electric cables - Part 2-1: Methods for general application - Density, water absorption, volume resistivity, and dielectric strength tests - Water absorption and density tests - Test for density of solid materials]
- IEC 60811-2-2:2012 [Common test methods for insulating and sheathing materials of electric cables - Part 2-2: Methods specific to elastomeric compounds - Ozone resistance, hot set and mineral oil immersion tests]