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  • ASTM
    B8-04 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
    Edition: 2004
    $103.58
    Unlimited Users per year

Description of ASTM-B8 2004

ASTM B8-04

Historical Standard: ASTM B8-04 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

SUPERSEDED (see Active link, below)




ASTM B8

1. 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 1This 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 AAFor bare conductors usually used in overhead lines.

1.2.2 Class AFor 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 BFor 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 DFor 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B1 Specification for Hard-Drawn Copper Wire

B2 Specification for Medium-Hard-Drawn Copper Wire

B3 Specification for Soft or Annealed Copper Wire

B33 Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes

B172 Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors

B173 Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors

B174 Specification for Bunch-Stranded Copper Conductors for Electrical Conductors

B189 Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes

B193 Test Method for Resistivity of Electrical Conductor Materials

B246 Specification for Tinned Hard-Drawn and Medium-Hard-Drawn Copper Wire for Electrical Purposes

B263 Test Method for Determination of Cross-Sectional Area of Stranded Conductors

B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

B787/B787M Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation


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/B0008-04

ASTM International is a member of CrossRef.


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