NEMA WC 58:2008

NEMA WC 58:2008 Portable And Power Feeder Cables For Use In Mines And Similar Applications Applies to materials, construction, and testing of insulated cables used for the distribution of electrical energy in surface and underground mines and similar applications.

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Table of Contents

Foreword
Section1-GENERAL
1.1Scope
PortableCables2,000VoltsorLess
PortableCables2,001-5,000Volts(100%InsulationLevel)
PortableCables0-25,000Volts(100%InsulationLevel)
MinePower2,001-25,000Volts(100%and133%Insulation
Level)
1.2GeneralInformation
1.3InformationtobeSuppliedbyUser
Section2-CONDUCTORS
2.1PhysicalandElectricalProperties
2.2ConductorSizeUnits
2.3ConductorDCResistanceperUnitLength
2.4ConductorDiameter
Section3-PORTABLESINGLEANDMULTIPLECONDUCTORPOWERCABLE
3.1Scope
3.2DCSystems
3.3Single-ConductorCables,Nonshielded,2,000VoltsorLess
3.4TypeWAndGTwo-ConductorCables,2,000VoltsorLess
3.5TypeW,G,G-GcandG-CGC.Three-AndFour-Conductor
Cables,2,000VoltsorLess
3.6TypeWandG,Five-andSix-Conductor,2,000VoltsorLess
3.7TypePG,Two-andThree-ConductorswithGroundingConductor,
2,000VoltsorLess
3.8TypePCG,Two-andThree-ConductorswithGroundingConductor
andTwoControlConductors,2,000VoltsorLess
3.9TypeG,Three-ConductorRoundwithGroundingConductors
2,001-5,000Volts
3.10ShieldedCable25,000VoltsorLess
3.11PowerConductors
3.12ControlAndGround-CheckConductors
3.13GroundingConductors
3.14StressControlLayer(ConductorShield)
3.15PowerConductorInsulation
3.16GroundCheckandControlConductorInsulation
3.17TapesandBraids
3.18ConductorIdentification
3.19Shielding
3.20ConductorAssembly
3.21Jackets
3.22CompletedCable
Section4-CONSTRUCTIONSOFMINEPOWERFEEDERCABLE
4.1Scope
4.2GeneralRequirements
4.3Conductors
4.4Insulation
4.5InsulationShielding
4.6Identification
4.7ConductorAssembly
4.8Jacket
4.9OutsideDiameter
4.10Tests
Section5-SPECIALCONSTRUCTIONS
5.1PortableArc-WeldingCables
Section6-TESTINGANDTESTMETHODS
6.1Testing
6.2TestsonSamples
6.3ConductorTestMethods
6.4TestSamplesandSpecimensforPhysicalandAgingTests
6.5CapacityandPowerFactorTests
6.6AcceleratedWaterAbsorption
6.7SurfaceResistance
6.8ThicknessofTapes
6.9Heat(Deformation)Distortion
6.10HeatShock
6.11ColdBend
6.12HotCreepTest
6.13SolventExtraction
6.14VolumeResistivity
6.15StrippingTest
6.16RetestsforTestsCoveredby6.6through6.15And6.20
6.17ElectricalTestsonCompletedCables
6.18MethodDeterminingPermittivity(S.I.C.)andDielectric
StrengthofExtrudedNonconductingPolymericStress
ControlLayers
Annexes
A(Informative)SymbolsandAbbreviations
B(Normative)DefinitionsforMaximumTemperatureofConductors
inInsulatedWireandCable
C(Normative)EmergencyOverloadRatingsforInsulatedCables
D(Normative)ICEAPublications,ASTM,NEMAStandardsandNFPA
E(Informative)Shielding
F(Informative)MinimumBendingRadiusforCables
J(Informative)VoltageTestafterInstallation
K(Informative)AdditionalConductorInformation

Abstract

Applies to materials, construction, and testing of insulated cables used for the distribution of electrical energy in surface and underground mines and similar applications.

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