ASTM-B8 2011
$40.63
B8-11 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
Published By | Publication Date | Number of Pages |
ASTM | 2011 | 7 |
ASTM B8-11
Historical Standard: Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
ASTM B8
Scope
1.1 This specification covers bare concentric-lay-stranded conductors made from round copper wires, either uncoated or coated with tin, lead, or lead alloy for general use for electrical purposes. These conductors shall be constructed with a central core surrounded by one or more layers of helically laid wires.
Note 1—This specification also permits conductors for use as covered or insulated electrical conductors.
Note 2—Sealed conductors, that are intended to prevent longitudinal water propagation and are further covered/insulated, are also permitted within the guidelines of this specification.
1.2 For the purposes of this specification, conductors are classified as follows (Explanatory Note 1 and Note 2):
1.2.1 Class AA—For bare conductors usually used in overhead lines.
1.2.2 Class A—For conductors to be covered with weather-resistant (weather-proof), slow-burning materials, and for bare conductors where greater flexibility than is afforded by Class AA is required.
1.2.3 Class B—For conductors to be insulated with various materials such as rubber, paper, varnished cloth, and so forth, and for the conductors indicated under Class A where greater flexibility is required.
1.2.4 Class C and Class D—For conductors where greater flexibility is required than is provided by Class B conductors.
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.
Keywords
concentric-lay-stranded copper conductors; concentric-lay-stranded hard; copper conductors; copper conductors for electrical purposes ; medium-hard; or soft copper conductors; Concentric-lay-stranded copper electrical conductors; Lead alloy-coated copper wire; Stranded copper electrical conductors–specifications; Tin-coated copper electrical wire
ICS Code
ICS Number Code 29.060.20 (Cables)
DOI: 10.1520/B0008-11
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | Scope Referenced Documents Ordering Information |
2 | Joints Lay TABLE 1 |
3 | Construction Physical and Electrical Tests of Conductors Stranded of Soft Wires Physical and Electrical Tests of Conductors Stranded of Hard-Drawn or Medium-Hard-Drawn Wires TABLE 2 |
4 | TABLE 3 |
5 | Density Mass and Resistance Variation in Area TABLE 4 TABLE 5 |
6 | Variation in Diameter Requirements for Wires Inspection Packaging and Package Marking Keywords TABLE 6 |