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1.1 This specification prescribes the recommended standard metric sizes of solid round electrical conductors.
1.2 This specification prescribes the recommended standard metric size designations of stranded electrical conductors (see Explanatory Note 1).
Note 2--Physical properties, construction requirements, and manufacturing tolerances for specific products should be included in individual product specifications developed in accordance with appropriate sizes in this specification.
1.3 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil, the requirements in SI units have been numerically converted from corresponding values, stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
F205 Test Method for Measuring Diameter of Fine Wire by Weighing
IEC StandardsIEC228 Nominal Cross-Sectional Areas and Composition of Conductors of Insulated Cables
ISO StandardsISOR388 Metric Series for Basic Thickness of Sheet and Diameters of Wire
ICS Number Code 29.050 (Superconductivity and conducting materials)