{"id":16199,"date":"2024-10-16T22:04:17","date_gmt":"2024-10-16T22:04:17","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-b786-2008\/"},"modified":"2024-10-24T12:18:53","modified_gmt":"2024-10-24T12:18:53","slug":"astm-b786-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-b786-2008\/","title":{"rendered":"ASTM-B786 2008"},"content":{"rendered":"

ASTM B786-08<\/h3>\n

Historical Standard: Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent Insulation<\/h4>\n
\n

ASTM B786<\/h4>\n

Scope<\/strong><\/p>\n

1.1 This 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 (\u00be<\/span> hard), -H14 or -H24 (\u00bd<\/span> hard), and -H142 or -H242 (\u00bd<\/span> hard) and 8000 series aluminum alloys wires in tempers \u201c<\/span>0\u201d<\/span> 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.<\/p>\n

Note<\/span> 1\u2014For 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).<\/p>\n

1.1.1 For 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).<\/p>\n

Note<\/span> 2\u2014Prior to 1975, aluminum 1350 was designated as EC aluminum.<\/p>\n

Note<\/span> 3\u2014The aluminum and temper designations conform to ANSI Standard H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E 527. Unified Numbering System alloy designations for 8000 Series aluminum alloys in accordance with Practice E 527 are listed in Table number 1 of Specification B 800.<\/p>\n

1.2 The 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.<\/p>\n

FIG. 1 Cross Section of Conductor<\/span><\/p>\n

Keywords<\/strong><\/p>\n

aluminum alloy conductors; aluminum electrical conductor; combination stranded conductor; electrical conductor; electrical conductor-aluminum; insulated electrical conductor; stranded conductor; unilay stranded conductor ; 8000-series aluminum alloy conductors; Aluminum electrical conductors–specifications; Electrical power systems–specifications; Insulated wire and cable–specifications; Mechanical analysis\/testing; Rated strength (electrical conductor wire); Stranded aluminum electrical conductors–specifications; Strength–insulation applications; Unilay-stranded aluminum electrical conductors<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 29.060.20 (Cables)<\/p>\n

DOI:<\/strong> 10.1520\/B0786-08<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Ordering Information <\/td>\n<\/tr>\n
2<\/td>\nJoints
Lay
Construction (Explanatory
)
Mechanical and Electrical Tests of Conductors not Annealed after Stranding
FIG. 1
TABLE 1 <\/td>\n<\/tr>\n
3<\/td>\nMechanical and Electrical Tests of Conductors Annealed after Stranding
Mass and Resistance
TABLE 2 <\/td>\n<\/tr>\n
4<\/td>\n Workmanship, Finish, and Appearance
Requirements for Wires
Retest
Density
Variance in Area
Inspection
Product Marking
Packaging and Package Marking
TABLE 3 <\/td>\n<\/tr>\n
5<\/td>\nKeywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

B786-08 Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent Insulation<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2008<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":16200,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[493,2637],"product_tag":[],"class_list":{"0":"post-16199","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-060-20","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/16199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/16200"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=16199"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=16199"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=16199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}