Medium Voltage Conductor Ampacities

1 Page 1 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Voltage Conductor AmpacitiesCOPPERC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 CMV-105213014515016511551751701901/01802 001952152/02052252252553/02402702602904/ 0280305295330250315355330365350385430395 4405004755304805357506006655856551000690 770675755 Single Conductor 5kV - 35kVALUMINUMC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 CMV-105210011511513011201351301501/01401 551501702/01601751752003/01902102002254/ 0215240230260250250280255290350305340310 3505003804253854307504905454855401000580 645565640 Based on NEC Table (C)(73) Ampacities of an Insulated Triplexed or Three Single Conductor copper Cables in Isolated Conduit in Air Based on Conductor Temperatures of 90 C (194 F) and 105 C and (221 F) and Ambient Air Temperature of 40 C (104 C) on NEC Table (C)(74)

2 Ampacities of an Insulated Triplexed or Three Single Conductor Aluminum Cables in Isolated Conduit in Air Based on Conductor Temperatures of 90 C (194 F) and 105 C and (221 F) and Ambient Air Temperature of 40 C (104 C) NEC 2014. Always refer to latest NEC 2 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Voltage Conductor AmpacitiesCOPPERC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 CMV-105216017517019511852051952251/02152 402252552/02502752602953/02903203003404/ 0335375345390250375415380430350465515470 5255005806455806507507508357308201000880 980850950 Single Conductor 5kV - 35kVALUMINUMC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105

3 CMV-105212513513015011451601501751/01701 851752002/01952152002303/02252502302654/ 0265290270305250295325300335350365405370 4155004605104605157506006655906601000715 800700780 Based on NEC Table (C)(67) Ampacities of Insulated Single copper Conductor Cables Triplexed in Air Based on Conductor Temperatures of 90 C (194 F) and 105 C (221 F) and Ambient Air Temperature of 40 C (104 F) on NEC Table (C)(68) Ampacities of an Insulated Single Aluminum Conductor Cables Triplexed in Air Based on Conductor Temperatures of 90 C (194 F) and 105 C (221 F) and Ambient Air Temperature of 40 C (104 F) NEC 2014.

4 Always refer to latest NEC 3 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Voltage Conductor AmpacitiesCOPPERC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 CMV-105213514515016011551651701851/01751 901952102/02002202202353/02302502502704/ 0265285285305250290315310335350355380375 4005004304604504857505305705455851000600 645615660 Multiconductor Conductor 5kV - 35kVALUMINUMC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105

5 CMV-105210511011512511201301351451/01401 501501652/01601701701853/01801951952104/ 0205220220240250230245245265350280310295 3155003403653553857504254604404751000495 535510545 Based on NEC Table (C)(79) Ampacities of Three Insulated copper Conductors Cabled Within an Overall Covering (Three- Conductor Cable) in Underground Electrical Ducts (One Cable per Electrical Duct) Based on Ambient Earth Temperature of 20 C (68 F), Electrical Duct Arrangement in Accordance with Figure , 100 Percent Load Factor, Thermal Resistance (RHO) of 90, Conductor Temperatures of 90 C (194 F) and 105 C (221 F).

6 One Circuit (See Figure , Detail 1.) on NEC Table (C)(80) Ampacities of Three Insulated Aluminum Conductors Cabled Within an Overall Covering (Three- Conductor Cable) in Underground Electrical Ducts (One Cable per Electrical Duct) Based on Ambient Earth Temperature of 20 C (68 F), Electrical Duct Arrangement in Accordance with Figure , 100 Percent Load Factor, Thermal Resistance (RHO) of 90, Conductor Temperatures of 90 C (194 F) and 105 C (221 F). One Circuit (See Figure , Detail 1.)

7 NEC 2014. Always refer to latest NEC 4 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Voltage Conductor AmpacitiesCOPPERC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105 CMV-105218019018520012002152102251/02302 452402552/02602802702903/02953203053304/ 0335360350375250365395380410350440475460 4955005305705505907506507006657201000730 785750810 Multiconductor Conductor 5kV - 35kVALUMINUMC onductor Size AWG/kcmil2001 - 5000 V5001 - 35000 V90 CMV-90105 CMV-10590 CMV-90105

8 CMV-105214015014515511551701651751/01801 901852002/02052202102253/02302502402604/ 0260280270295250285310300320350345375360 3905004204504354707505205605405801000600 650620665 Based on NEC Table (C)(83) Ampacities of Three Insulated copper Conductors Cabled Within an Overall Covering (Three- Conductor Cable) Directly Buried in Earth Based on Ambient Earth Temperature of 20 C (68 F), Arrangement per Figure , 100 Percent Load Factor, Thermal Resistance (RHO) of 90, Conductor Temperatures of 90 C (194 F) and 105 C (221 F).

9 One Circuit (See Figure , Detail 5.)1 Based on NEC Table (C)(84) Ampacities of Three Insulated Aluminum Conductors Cabled Within an Overall Covering (Three- Conductor Cable) Directly Buried in Earth Based on Ambient Earth Temperature of 20 C (68 F), Arrangement per Figure , 100 Percent Load Factor, Thermal Resistance (RHO) of 90, Conductor Temperatures of 90 C (194 F) and 105 C (221 F). One Circuit (See Figure , Detail 5.)11 Per NEC 2014. Always refer to latest NEC 5 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Temperature Correction FactorsTemperature Rating of the ConductorAmbient Temperature ( C)90 C105 CAmbient Temperature ( F)10 or or on NEC Table (C)(4).

10 For ambient temperatures other than 40 C (104 F), multiply the allowable Ampacities specified in the ampacity tables by the appropriate factor shown NEC 2014. Always refer to latest NEC 6 of 6 Energy | | GUIDELINEF ebruary, 2018TG84 Voltage Cables (MV-105 and MV UD) Voltage RatingsVoltage RatingInsulation LevelNominal Thickness (mils)5kV100%905kV133%1158kV100%1158kV13 3%14015kV100%17515kV133%22025kV100%26028 kV100%28025kV133%32028kV133%34535kV100%3 4535kV133%420 Minimum Size (AWG) Voltage RatingMinimum Size (AWG )5kV88kV615kV225kV135kV1/0 Voltage and insulation level, per UL 1072, ICEA S 93-639 and ICEA S 97-682, section 4, table 4-7.