Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

04-01-2004

Publisher

American Society for Testing and Materials

Committee	B 01
DocumentType	Standard
Pages	7
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM B 8 : 2011
Supersedes	ASTM B 8 : 1999

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.