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ASTM B229-12
- Standard Specification for Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite Conductors
- standard by ASTM International, 04/01/2012
- Publisher: ASTM
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1.1 This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):
Type A | Type G | |
Type C | Type J | |
Type D | Type K | |
Type E | Type N | |
Type EK | Type P | |
Type F | Type V |
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.
FIG. 1 Standard Types of Composite Conductors