ASTM B 786 : 2008 : R2013

Name: ASTM B 786 : 2008 : R2013
Brand: ASTM
Price: 75.00 USD

Superseded

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Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent Insulation

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

04-01-2013

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 02.03, 2013 Defines bare combination unilaystrande conductors made from round wires of aluminum 1350 and 8000 series of aluminum alloys, for insulated conductors for electrical purposes.

1.1This specification covers bare combination unilay-stranded conductors made from round wires of aluminum 1350 and 8000 series of aluminum alloys, for insulated conductors for electrical purposes. Aluminum 1350 wires in tempers -H19 (extra hard), -H16 or -H26 (³/₄hard), -H14 or -H24 (¹/₂hard), and -H142 or -H242 (¹/₂hard) and 8000 series aluminum alloys wires in tempers “0” and H1X or H2X are permitted. These conductors shall be constructed with a central core wire surrounded by two layers of helically laid wires, resulting in an outer diameter equal to the compressed-stranded equivalent conductors.

Note 1—For the purpose of this specification, combination unilay conductor is defined as follows: a central core wire surrounded by a layer of six helically laid wires of the same diameter as the core wire with a helically laid outer layer containing six smaller wires alternated between six wires of the same diameter as the wires in the layer underneath. Both layers have a common length and direction of lay (see Fig. 1).

FIG. 1 Cross Section of Conductor

1.1.1For the purpose of this specification, normal conductor classification (Class AA, A, B, C) is not applicable, as these conductors are intended for subsequent insulation. The descriptive term combination unilay-stranded shall be used in place of conductor classification (Note 2 and Note 3).

Note 2—Prior to 1975, aluminum 1350 was designated as EC aluminum.

Note 3—The aluminum and temper designations conform to ANSI Standard H35.1 . Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527. Unified Numbering System alloy designations for 8000 Series aluminum alloys in accordance with Practice E527 are listed in Table number 1 of Specification B800.

1.2The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

Committee	B 01
DocumentType	Standard
Pages	6
ProductNote	Reconfirmed 2013
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM B 786/B786M : 2008 : R2013 : EDT 1
Supersedes	ASTM B 786 : 2008

ANSI H35.1/H35.1M : 2017	ALLOY AND TEMPER DESIGNATION SYSTEMS FOR ALUMINUM
ASTM E 527 : 2016 : REDLINE	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ASTM B 193 : 2016 : REDLINE	Standard Test Method for Resistivity of Electrical Conductor Materials