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TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Medium Voltage Conductor AmpacitiesSingle Conductor 5kV - 35kVALUMINUMCOPPERConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 VConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 454855401000690770675755100058064556564090 CMV-90105 CMV-10590 CMV-90105 sed on NEC Table 310.60(C)(73) Ampacities of an InsulatedTriplexed or Three Single Conductor Copper Cables inIsolated Conduit in Air Based on Conductor Temperaturesof 90 C (194 F) and 105 C and (221 F) and Ambient AirTemperature of 40 C (104 C)1.Based on NEC Table 310.60(C)(74) Ampacities of an InsulatedTriplexed or Three Single Conductor Aluminum Cables inIsolated Conduit in Air Based on Conductor Temperaturesof 90 C (194 F) and 105 C and (221 F) and Ambient AirTemperature of 40 C (104 C)1.1Per NEC 2014. Always refer to latest NEC edition.Energy 800.249.0014 [email protected] lscns.usPage 1 of 6

TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Medium Voltage Conductor AmpacitiesSingle Conductor 5kV - 35kVCOPPERConductorSizeAWG/kcmil2001 - 5000 VALUMINUM5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 nductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 6559066010008809808509501000715800700780Based on NEC Table 310.60(C)(67) Ampacities of InsulatedSingle Copper Conductor Cables Triplexed in Air Based onConductor Temperatures of 90 C (194 F) and 105 C (221 F)and Ambient Air Temperature of 40 C (104 F)1.Based on NEC Table 310.60(C)(68) Ampacities of an InsulatedSingle Aluminum Conductor Cables Triplexed in Air Based onConductor Temperatures of 90 C (194 F) and 105 C (221 F)and Ambient Air Temperature of 40 C (104 F)1.1Per NEC 2014. Always refer to latest NEC edition.Energy 800.249.0014 [email protected] lscns.usPage 2 of 6

TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Medium Voltage Conductor AmpacitiesMulticonductor Conductor 5kV - 35kVALUMINUMCOPPERConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 VConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 604404751000600645615660100049553551054590 CMV-90105 CMV-10590 CMV-90105 sed on NEC Table 310.60(C)(79) Ampacities of ThreeInsulated Copper Conductors Cabled Within an OverallCovering (Three-Conductor Cable) in Underground ElectricalDucts (One Cable per Electrical Duct) Based on Ambient EarthTemperature of 20 C (68 F), Electrical Duct Arrangementin Accordance with Figure 310.60, 100 Percent Load Factor,Thermal Resistance (RHO) of 90, Conductor Temperatures of90 C (194 F) and 105 C (221 F).One Circuit (See Figure 310.60, Detail 1.)1.Based on NEC Table 310.60(C)(80) Ampacities of ThreeInsulated Aluminum Conductors Cabled Within an OverallCovering (Three-Conductor Cable) in Underground ElectricalDucts (One Cable per Electrical Duct) Based on Ambient EarthTemperature of 20 C (68 F), Electrical Duct Arrangementin Accordance with Figure 310.60, 100 Percent Load Factor,Thermal Resistance (RHO) of 90, Conductor Temperatures of90 C (194 F) and 105 C (221 F).One Circuit (See Figure 310.60, Detail 1.)1.1Per NEC 2014. Always refer to latest NEC edition.Energy 800.249.0014 [email protected] lscns.usPage 3 of 6

TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Medium Voltage Conductor AmpacitiesMulticonductor Conductor 5kV - 35kVALUMINUMCOPPERConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 VConductorSizeAWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 605405801000730785750810100060065062066590 CMV-90105 CMV-10590 CMV-90105 sed on NEC Table 310.60(C)(83) Ampacities of ThreeInsulated Copper Conductors Cabled Within an OverallCovering (Three-Conductor Cable) Directly Buried in EarthBased on Ambient Earth Temperature of 20 C (68 F),Arrangement per Figure 310.60, 100 Percent Load Factor,Thermal Resistance (RHO) of 90, Conductor Temperatures of90 C (194 F) and 105 C (221 F).One Circuit (See Figure 310.60, Detail 5.)1Based on NEC Table 310.60(C)(84) Ampacities of ThreeInsulated Aluminum Conductors Cabled Within an OverallCovering (Three-Conductor Cable) Directly Buried in EarthBased on Ambient Earth Temperature of 20 C (68 F),Arrangement per Figure 310.60, 100 Percent Load Factor,Thermal Resistance (RHO) of 90, Conductor Temperatures of90 C (194 F) and 105 C (221 F).One Circuit (See Figure 310.60, Detail 5.)11Per NEC 2014. Always refer to latest NEC edition.Energy 800.249.0014 [email protected] lscns.usPage 4 of 6

TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Ambient Temperature Correction FactorsTemperature Rating of theConductorAmbientTemperature( C)90 C105 CAmbientTemperature( F)10 or less1.261.2150 or .48186-19491-95-0.39195-20396-100-0.28204-212Based on NEC Table 310.60(C)(4). For ambient temperatures other than 40 C (104 F), multiply theallowable ampacities specified in the ampacity tables by the appropriate factor shown above.11Per NEC 2014. Always refer to latest NEC edition.Energy 800.249.0014 [email protected] lscns.usPage 5 of 6

TECHNICAL GUIDELINEFebruary, 2018TG84 Rev.4Medium Voltage Cables (MV-105 and MV UD)Voltage 028kV133%34535kV100%34535kV133%420Voltage and insulation level, per UL 1072, ICEA S 93-639 and ICEA S 97-682, section 4, table 4-7.Minimum Size V135kV1/0Energy 800.249.0014 [email protected] lscns.usPage 6 of 6