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ASTM B8-99

ASTM B8-99

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

2017-08-16 /Historical
Superseeded by:

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 Notes 1 and 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, etc., 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.

Concentric-lay-stranded copper electrical conductors; Copper electrical conductors-stranded; Stranded copper conductors; Tin-coated copper wire-electrical conductors; concentric-lay-stranded hard/medium-hard/soft copper conductors, spec.,; Lead alloy-coated copper wire; concentric-lay-stranded hard/medium-hard/softcopper conductors, spec.,;<sfig id=00000000>Order Form</sfig>
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