ASTM B856-13_图文

Designation:B856

−

11

StandardSpecificationfor

Concentric-Lay-StrandedAluminumConductors,Coated

SteelSupported(ACSS)

1

ThisstandardisissuedunderthefixeddesignationB856;thenumberimmediatelyfollowingthedesignationindicatestheyearof

originaladoptionor,inthecaseofrevision,rinparenthesesindicatestheyearoflastreapproval.A

superscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.

1.1Thisspecificationcoversroundwireconcentric-lay-

strandedaluminumconductors,steelsupported(ACSS)foruse

asoverheadelectricalconductors(seeExplanatoryNote1).

1.2Thevaluesstatedininch-poundorSIunitsaretobe

stemshallbeused

ingvaluesfromthetwo

systemsmayresultinnonconformancewiththespecification.

ForconductorsizesdesignatedbyAWGorkcmilsizes,the

requirementsinSIunitsarenumericallyconvertedfromthe

ductor

sizesdesignationbyAWGorkcmil,therequirementsinSI

unitshavebeennumericallyconvertedfromcorresponding

ductor

sizesdesignatedbySIunitsonly,therequirementsarestatedor

derivedinSIunits.

1.2.1Fordensity,resistivityandtemperature,thevalues

statedinSIunitsaretoberegardedasstandard.

ncedDocuments

2.1Thefollowingdocumentsoftheissueineffectondate

ofmaterialpurchaseformpartofthisspecificationtotheextent

referencedherein:

2.2ASTMStandards:

2

B263TestMethodforDeterminationofCross-Sectional

AreaofStrandedConductors

B354TerminologyRelatingtoUninsulatedMetallicElectri-

calConductors

B498/B498MSpecificationforZinc-Coated(Galvanized)

SteelCoreWireforUseinOverheadElectricalConduc-

tors

B500/B500MSpecificationforMetallicCoatedorAlumi-

ThisspecificationisunderthejurisdictionofASTMCommitteeB01on

ElectricalConductorsandisthedirectresponsibilityofSubcommitteeB01.07on

ConductorsofLightMetals.

CurrenteditionapprovedApril1,ally

:

10.1520/B0856-11.

2

ForreferencedASTMstandards,visittheASTMwebsite,,or

contactASTMCustomerServiceatservice@ualBookofASTM

Standardsvolumeinformation,refertothestandard’sDocumentSummarypageon

theASTMwebsite.

1

numCladStrandedSteelCoreforUseinOverhead

ElectricalConductors

B502SpecificationforAluminum-CladSteelCoreWirefor

UseinOverheadElectricalAluminumConductors

B549SpecificationforConcentric-Lay-StrandedAluminum

Conductors,Aluminum-CladSteelReinforcedforUsein

OverheadElectricalConductors

B606SpecificationforHigh-StrengthZinc-Coated(Galva-

nized)SteelCoreWireforAluminumandAluminum-

AlloyConductors,SteelReinforced

B609/B609MSpecificationforAluminum1350Round

Wire,AnnealedandIntermediateTempers,forElectrical

Purposes

B802/B802MSpecificationforZinc–5%Aluminum-

MischmetalAlloy-CoatedSteelCoreWireforAluminum

Conductors,SteelReinforced(ACSR)

B803SpecificationforHigh-StrengthZinc–5%Aluminum-

MischmetalAlloy-CoatedSteelCoreWireforUsein

OverheadElectricalConductors

B857SpecificationforShapedWireCompactConcentric-

Lay-StrandedAluminumConductors,Coated-SteelSup-

ported(ACSS/TW)

B957SpecificationforExtra-High-StrengthandUltra-High-

StrengthZinc-Coated(Galvanized)SteelCoreWirefor

OverheadElectricalConductors

B958SpecificationforExtra-High-StrengthandUltra-High-

StrengthClassAZinc–5%Aluminum-MischmetalAlloy-

CoatedSteelCoreWireforUseinOverheadElectrical

Conductors

E29PracticeforUsingSignificantDigitsinTestDatato

DetermineConformancewithSpecifications

E527PracticeforNumberingMetalsandAlloysinthe

Unified

NumberingSystem(UNS)

2.3Other

Standards:

AluminumAssociationPublication50CodewordsforOver-

headAluminumElectricalConductors

3

NBSHandbook100—CopperWireTablesoftheNational

BureauofStandards

4

AvailablefromtheAluminumAssociation,Inc.,90019thStreet,NW,Suite

300,Washington,DC2006.

4

AvailablefromNationalTechnicalInformationServices,5285PortRoyal

Road,Springfield,VA22161.

3

Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,States

Copyright by ASTM Int'l (all rights reserved); Wed Sep 19 00:14:46 EDT 2012

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1

B856−11

4.1.7

Packagesizeandtype(see16.1),

4.1.8

Specialpackagemarkings,ifrequired(see16.4),

4.1.9

Heavywoodlagging,ifrequired(see16.3),and

4.1.10Placeofinspection(seeSection15).

ementforWires

5.1Afterstranding,theroundaluminumwiresshallcon-

formtotherequirementsofSpecificationB609/B609Mfor

1350-0

temper,n-

gationshallnotbelessthan20%afterstranding.

5.2Beforestranding,thesteelcorewireshallmeetthe

requirementsofSpecificationB498/B498M,B606,B802/

B802M,B803,B957,orB958,whicheverisapplicable.

5.3

Thestrandedsteelcoreshallmeettherequirementsof

SpecificationB500/B500Masapplicable.

6.

Joints

6.1Electric-buttwelds,cold-pressurewelds,andelectric-

butt,cold-upsetweldsinthefinishedindividualaluminum

wirescomposingtheconductormaybemadeduringthe

shalloccurwithin50ft(15m)of

aweldinthesamewireorinanyotherwireofthecompleted

conductor(seeExplanatoryNote2).

6.2

Thereshallbenojointsofanykindmadeinthefinished

coatedsteelwires.

7.1Thelengthoflayofthevariouslayersofaluminum

wiresinaconductorshallconformtoTable2(seeExplanatory

Note3).

7.2

Thelengthoflayofthevariouslayersofsteelwiresin

aconductorshallconformtoSpecificationB500/B500M.

7.3Thedirectionoflayoftheoutsidelayerofaluminum

wiresshallberighthandunlessotherwisespecifiedinthe

ectionoflayofthealuminumandsteel

wiresshallbereversedinsuccessivelayers.

uction

8.1Thenumberanddiameterofthealuminumandsteel

wiresandtheareaofcrosssectionofthealuminumwiresfor

standardconstructionsareshowninTable1.

8.2

ACSSmaybeconstructedusingsteelcorewirewitha

eptablecorewiresare,but

notlimitedto:

8.2.1RegularstrengthGalvanizedsteelcorewires,with

coatingClassesAorC(designatedGA2andGC2)inaccor-

dancewithSpecificationB498/B498M(seeExplanatoryNote

9);

8.2.2High-strengthgalvanizedsteelcorewire,coating

ClassA(designatedGA3)inaccordancewithSpecification

B606(seeExplanatoryNote9);

8.2.3

RegularstrengthZn-5A1-MMcoatedsteelcorewire,

coatingClassA(designatedMA2)inaccordancewithSpeci-

ficationB802/B802M;

8.2.4

High-strengthZn-5A1-MMcoatedsteelcorewire,

coatingClassA(designatedMA3)inaccordancewithSpeci-

ficationB803;

2

ology

3.1Fordefinitionsoftermsrelatingtoconductorsreferto

definitionsfoundinSpecificationB354.

3.2Definitions:

3.2.1aluminum-clad—aluminumbonded.

3.2.2galvanized—zinccoated.

3.2.3Zn-5A1-MM—Zinc-5%Aluminum-MischmetalAlloy

(Zn-5A1-MM)coated.

3.3Abbreviations:

3.3.1ACSS—aluminumconductor,steelsupported.

3.3.2ACSS/AW2—supportedwithregularstrength

aluminum-cladcorewireinaccordancewithSpecification

B502.

3.3.3ACSS/AW3—

supportedwithhighstrengthaluminum-

cladcorewireinaccordancewithSpecificationB502.

3.3.4ACSS/GA2—supportedwithregularstrengthgalva-

nizedsteelcorewire,coatingClassAinaccordancewith

SpecificationB498/B498M.

3.3.5ACSS/GC2—supportedwithregularstrengthgalva-

nizedsteelcorewire,coatingClassCinaccordancewith

SpecificationB498/B498M.

3.3.6ACSS/GA3—supportedwithhigh-strengthgalvanized

steelcorewireinaccordancewithSpecificationB606.

3.3.7ACSS/GA4—supportedwithextra-highstrengthzinc

ClassAcoatedsteelcorewireinaccordancewithSpecification

B957.

3.3.8ACSS/GA5—supportedwithultra-highstrengthzinc

ClassAcoatedsteelcorewireinaccordancewithSpecification

B957.

3.3.9ACSS/MA2—supportedwithregularstrengthZn-

5A1-MMcoatedsteelcorewire,coatingClassAinaccordance

withSpecificationB802/B802M.

3.3.10ACSS/MA3—supportedwithhigh-strengthZn-

5A1-MMcoatedsteelcorewireinaccordancewithSpecifica-

tionB803.

3.3.11ACSS/MA4—supportedwithextra-highstrength

Zinc-5%Aluminum-MischmetalAlloy(Zn-5A1-MM)Coated

steelcorewireinaccordancewithSpecificationB958.

3.3.12ACSS/MA5—supportedwithultra-highstrength

Zinc-5%Aluminum-MischmetalAlloy(Zn-5A1-MM)Coated

steelcorewireinaccordancewithSpecificationB958.

ngInformation

4.1Ordersformaterialunderthisspecificationshallinclude

thefollowinginformation:

4.1.1Quantityofeachsize,stranding,andclass,

4.1.2Conductorsize,circular-milareaorAWG,anddiam-

eter(seeSection9andTable1),

4.1.3

Numberofwires,aluminumandsteel,

4.1.4Typeofsteelcorewireandclass(ifapplicable)of

coating(see5.2),

4.1.5Directionoflayofouterlayerofaluminumwiresif

otherthanrighthand(see7.3),

4.1.6

Specialtensiontest,ifdesired(see14.3),

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