Appendix I

LIST OF TABLESTable No.Title1Portable power cable ampacities—600 volts.2Portable cord ampacities—600 volts.3Portable power cable ampacities—601 to 5,000 volts.4Normal diameter of round cables with tolerances in inches—600 volts.5Nominal dimension of flat cables with tolerances in inches—600 volts.6Nominal diameter of heavy jacketed cords with tolerances in inches—600 volts.7Nominal diameter of three-conductor portable power cables with tolerances in inches—601 to 5,000 volts.8Fuse ratings or instantaneous settings of circuit breakers for short-circuit protection of portable cables.9Specifications for portable cables longer than 500 feet. Table 1—Portable Power Cable Ampacities—600 Volts (Amperes Per Conductor Based on 60 °C. Copper Temperature—40 °C. Ambient)Conductor size—AWG or MCMSingle conductor2-conductor, round or flat3-conductor, round or flat4-conductor5-conductor6-conductor84540353025206605050403530485706555453539580756555452110959075655511301101008575651/015013012010090802/0175150135115105953/02051751551301201104/0235200180150140130250275220200160300305240220175350345240235190400375280250200450400300270215500425320290230 Table 2—Portable Cord Ampacities—600 Volts (Amperes Per Conductor Based on 60 °C. Copper Temperature—40 °C. Ambient)Conductor size—AWG1-3 conductor4-6 conductor7-9 conductor14151281220161110252014 Table 3—Portable Power Cable Ampacities—601 to 5,000 Volts (Amperes Per Conductor Based on 75 °C. Copper Temperature—40 °C. Ambient)Conductor size—AWG or MCM3-conductor types G-GC and SIIC-GC 2,000 volts3-conductor type SHD-GC 2,001-5,000 volts66565485853100100211511511301301/01451452/01701703/01951954/0220220250245245300275275350305305 Table 4—Nominal Diameters of Round Cables With Tolerances in Inches—600 VoltsConductor size—AWG or MCMSingle conductor2-conductorTypes W & G twistedType PG, 2 powerType PCG, 3 power, ground3-conductorTypes W & GType PG, 3 power, groundType PCG, 3 power, 2 control, ground4-conductor—Types W & G5-conductor—Types W & G6-conductorType wTolerance80.440.810.840.940.910.931.030.991.071.18±0.036.51.93.93.981.011.031.181.101.211.31±.034.571.081.081.101.171.201.291.271.401.52±.033.631.171.171.201.241.271.311.341.481.61±.032.661.271.271.291.341.341.391.481.611.75±.031.741.441.441.441.511.521.521.681.882.05±.031/0.771.521.521.521.651.681.681.791.962.13±.042/0.821.651.651.651.751.791.791.932.132.32±.043/0.871.771.771.771.891.931.932.072.262.49±.054/0.931.921.921.922.042.132.132.262.462.71±.052501.032.162.162.162.392.392.392.66±.063001.092.322.562.84±.063501.152.432.682.98±.064001.202.572.823.14±.064501.262.672.943.26±.065001.312.763.033.40±.06 Table 5—Nominal Dimensions of Flat Cables With Tolerances in Inches—600 VoltsConductor size—AWG2-conductorType WMajorO.D.ToleranceMinorO.D.ToleranceType GMajorO.D.ToleranceMinorO.D.Tolerance3-conductor—Type GMajorO.D.ToleranceMinorO.D.Tolerance80.84±0.040.51±0.036.93±.04.56±.031.02±.040.56±.031.65±0.060.67±0.0541.05±.04.61±.031.15±.04.61±.031.85±.06.75±.0531.14±.04.68±.031.26±.04.68±.031.99±.06.77±.0521.24±.04.73±.031.35±.04.73±.062.10±.06.81±.0511.40±.04.81±.031.55±.04.81±.032.43±.06.97±.051/01.51±.04.93±.031.67±.04.93±.032/01.63±.04.99±.031.85±.04.99±.033/01.77±.041.03±.032.00±.041.03±.034/01.89±.041.10±.032.10±.041.10±.03 Table 6—Nominal Diameters of Heavy Jacketed Cords With Tolerances In Inches—600 VoltsConductor size—AWG2-conductorDiameterTolerance3-conductorDiameterTolerance4-conductorDiameterTolerance5-conductorDiameterTolerance6-conductorDiameterTolerance7-conductorDiameterTolerance140.64±0.020.67±0.020.71±0.020.78±0.030.83±0.030.89±0.0312.68±.02.72±.03.76±.03.83±.03.89±.03.98±.0310.73±.03.80±.03.84±.03.90±.031.00±.031.07±.03 Table 7—Nominal Diameters of Three-Conductor Portable Power Cables With Tolerances in Inches—601 to 5,000 VoltsConductor size—AWG or MCMType G-GC (nonshielded) 2,000 voltsDiameterToleranceType SHC-GC (shielded overall) 2,000 voltsDiameterToleranceType SHD-GC (individually shielded power conductors) 2,001-3,000 voltsDiameterToleranceType SHD-GC (individually shielded power conductors) 3,001-5,000 voltsDiameterTolerance61.25+0.10, −0.061.39+0.11, −0.071.62+0.13, −0.081.78+0.14, −0.0941.40+.11, −.071.55+.12, −.081.77+.14, −.091.90+.15, −.1031.48+.12, −.071.62+.13, −.081.84+.15, −.091.98+.16, −.1021.55+.12, −.081.71+.14, −.091.92+.15, −.102.09+.17, −.1111.74+.14, −.091.89+.15, −.092.04+.16, −.102.18+.17, −.111/01.84+.15, −.092.02+.16, −.102.18+.17, −.112.34+.19, −.122/01.99+.16, −.102.16+.17, −.112.29+.18, −.122.46+.20, −.123/02.12+.17, −.112.30+.18, −.112.45+.20, −.122.62+.21, −.134/02.30+.18, −.122.48+.20, −.122.62+.21, −.132.76+.22, −.142502.46+.20, −.122.70+.22, −.133002.63+.21, −.132.84+.23, −.143502.75+.22, −.142.97+.24, −.15 Table 8—Fuse Ratings or Instantaneous Setting of Circuit Breakers for Short-Circuit Protection of Portable Cables and CordsConductor size—AWG or MCMOhms/1,000 ft. at 25 °C.Maximum allowable fuse rating (amperes)Maximum allowable circuit breaker instantaneous setting (amperes) 1142.622050121.653075101.04401508.654802006.4101003004.2592005003.2052506002.1623008001.1293751,0001/0.1025001,2502/0.0811,5003/0.0642,0004/0.0512,500250.0432,500300.0362,500350.0312,500400.0272,500450.0242,500500.0222,5001 Higher circuit-breaker settings may be permitted for special applications when justified. Table 9—Specifications for Portable Cables Longer Than 500 Feet 1Conductor size—AWG or MCMMax. allowable length (feet)Normal ampacity at 60 °C. copper temperature (40 °C. ambient)Resistance at 60 °C. copper temperature (ohms)6550500.512460070.353365080.302270095.2581750110.2201/0800130.1852/0850150.1573/0900175.1304/01,000200.1162501,000220.0983001,000240.0823501,000260.0704001,000280.0614501,000300.0545001,000320.0501 Fuses shall not be used for short-circuit protection of these cables. Circuit breakers shall be used with the instantaneous trip settings not to exceed the values given in Table 8.