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TABLE C1: AC OUTPUT CIRCUIT CONDUCTOR AND CONDUIT IDENTIFICATION INITIAL CONDUCTOR LOCATION FINAL CONDUCTOR LOCATION RACEWAY NAME CIRCUIT ID RACEWAY SIZE OR DIRECT BURIAL # OF PARALLEL CIRCUITS # OF CONDUCTORS IN RACEWAY OR BURIAL BUNDLE % OF MAX CONDUIT FILL 310.15(B)(1) Temp Correction Factor 310.15(C)(1) Fill Adjustment Factor 690.8 (A)(1)(e) Adjustment Factor OPERATING LINE CURRENT DESIGN LINE CURRENT TERMINAL TEMP LIMIT TEMP LIMIT AMPACITY 30C AMB OCPD MINIMUM CORRECTED AMPACITY CONDUCTOR CORRECTED AMPACITY ONE WAY LENGTH (FT) VOLTAGE DROP % CURRENT CARRYING CONDUCTOR TYPE AND SIZE NEUTRAL WIRE TYPE AND SIZE GROUNDING CONDUCTOR SIZE (AWG)NOTES INV-1 SPNLBD AC1.1 AC1.1-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 150 0.78%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-2 SPNLBD AC1.2 AC1.2-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 150 0.78%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-3 SPNLBD AC1.3 AC1.3-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 145 0.76%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-4 SPNLBD AC1.4 AC1.4-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 145 0.76%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-5 SPNLBD AC1.5 AC1.5-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 170 0.89%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-6 SPNLBD AC1.6 AC1.6-1 1-1/2" EMT 1 4 78%0.96 1.00 1.25 72 90 Al-75C 120 110 90 130 170 0.89%3 - #1/0 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-7 SPNLBD AC1.7 AC1.7-1 1" EMT 1 4 95%0.96 1.00 1.25 31 38 Al-75C 65 50 38 72 180 1.01%3 - #4 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC INV-8 SPNLBD AC1.8 AC1.8-1 1" EMT 1 4 95%0.96 1.00 1.25 31 38 Al-75C 65 50 38 72 180 1.01%3 - #4 AWG, AL-THWN-2 0 - #NO NEUTRAL 1 - #4 AWG, AL-THWN-2 EGC SPNLBD ACDS-1 AC1.9 AC1.9-1 3" EMT 2 5 77%0.96 1.00 1.25 493 616 Al-75C 620 700 616 672 10 0.04%3 - #500 MCM, AL-THWN-2 1 - #4/0 AWG, AL-THWN-2 1 - #3/0 AWG, AL-THWN-2 EGC ACDS-1 SWBD AC1.10 AC1.10-1 3" EMT 2 5 89%0.96 1.00 1.25 493 616 Al-75C 620 N/A 616 672 10 0.04%3 - #500 MCM, AL-THWN-2 1 - #500 MCM, AL-THWN-2 1 - #4/0 AWG, AL-THWN-2 EGC DC CONDUITS DC VOLTAGE DROP DESIGN LINE CURRENT MINIMUM CORRECTED AMPACITY CONDUIT FILL CONDUCTOR CORRECTED AMPACITY CONDUIT NAME (2*ONE WAY LENGTH*RESISTANCE PER 1000FT*PHASE CURRENT Imp/1000 FT/STRING VOLTAGE/# WIRES PER PHASE)= VOLTAGE DROP IN CONDUIT ISC*1.56 ISC*1.25 100*(TOTAL CONDUCTOR AREA)/((CONDUIT AREA)*(PERCENT ALLOWED FILL)) = PERCENT MAXIMUM FILL CONDUCTOR AMPACITY AT 30C * CONDUCTOR PER PHASE * TEMP. CORRECTION FACTOR * FILL ADJUSTMENT FACTOR = CONDUCTOR CORRECTED AMPACITY DC1.1 (2 * 450 * 0.778 * 13.116624/ 1000FT /697.89 / 1 ) = 1.48%(14.01 * 1.56) = 21.89 (14.01 * 1.25) = 17.51 100 * 0.48 / (1.5 * 0.4) = 81%(55 * 1 * 0.96 * 0.8) = 42.24 AC CONDUITS ( For 3-Phase system)3 PHASE AC VOLTAGE DROP DESIGN LINE CURRENT MINIMUM CORRECTED AMPACITY CONDUIT FILL CONDUCTOR CORRECTED AMPACITY CONDUIT NAME 1.732*ONE WAY LENGTH*RESISTANCE PER 1000FT*PHASE CURRENT/1000 FT/OPERATING VOLTAGE/# WIRES PER PHASE) = VOLTAGE DROP IN CONDUIT OPERATING CURRENT*1.25 OPERATING CURRENT*1.25 100*(TOTAL CONDUCTOR AREA)/((CONDUIT AREA)*(PERCENT ALLOWED FILL)) = PERCENT MAXIMUM FILL CONDUCTOR AMPACITY AT 30C * CONDUCTOR PER PHASE * TEMP. CORRECTION FACTOR * FILL ADJUSTMENT FACTOR = CONDUCTOR CORRECTED AMPACITY AC1.1 (1.732*150 * 0.201 * 72 / 1000FT / 480 / 1)=0.78%(72.2 * 1.25) = 90.25 (72.2 * 1.25) = 90.25 100 * 0.64 / (2.04 * 0.4) = 78%(135*1*0.96*1) = 129.6 STRING VOC CALCULATION - SEG-550-BMA-TB PANEL VOC, 25C 49.7 NUMBER IN SERIES 18 STRING VOC STC 894.6 DESIGN LOW, (ASHRAE) C 2 TEMP COEFFICIENT, %/C -0.27% PANEL VOC * NUMBER IN SERIES * (1 - (25 - DESIGN LOW TEMP)* VOC TEMP COEFFICIENT) = MAX VOC AT DESIGN LOW (49.7 * 18 * ( 1-(25-(2)* (-0.0027 )) = 954.99 STRING VOC CALCULATION - SEG-550-BMA-TB PANEL VOC, 25C 49.7 NUMBER IN SERIES 16 STRING VOC STC 795.2 DESIGN LOW, (ASHRAE) C 2 TEMP COEFFICIENT, %/C -0.27% PANEL VOC * NUMBER IN SERIES * (1 - (25 - DESIGN LOW TEMP)* VOC TEMP COEFFICIENT) = MAX VOC AT DESIGN LOW (49.7 * 16 * ( 1-(25-(2)* (-0.0027 )) = 848.88 STRING VOC CALCULATION - SEG-550-BMA-TB PANEL VOC, 25C 49.7 NUMBER IN SERIES 17 STRING VOC STC 844.9 DESIGN LOW, (ASHRAE) C 2 TEMP COEFFICIENT, %/C -0.27% PANEL VOC * NUMBER IN SERIES * (1 - (25 - DESIGN LOW TEMP)* VOC TEMP COEFFICIENT) = MAX VOC AT DESIGN LOW (49.7 * 17 * ( 1-(25-(2)* (-0.0027 )) = 901.93 TABLE B1: DC OUTPUT CIRCUIT CONDUCTOR AND CONDUIT IDENTIFICATION INITIAL CONDUCTOR LOCATION FINAL CONDUCTOR LOCATION # STRINGS IN COMBINER BOX IN PARALLEL RACEWAY NAME CIRCUIT ID RACEWAY SIZE OR DIRECT BURIAL # OF PARALLEL CIRCUITS # OF CONDUCTORS IN RACEWAY OR BURIAL BUNDLE % OF MAX CONDUIT FILL 310.15(B)(1) Temp Correction Factor 310.15(C)(1) Fill Adjustment Factor 690.8 (A)(1)(a) and (B)(1) Adjustment Factors Isc DESIGN LINE CURRENT TERMINAL TEMP LIMIT TEMP LIMIT AMPACITY 30C AMB OCPD MINIMUM CORRECTED AMPACITY CONDUCTOR CORRECTED AMPACITY ONE WAY LENGTH (FT) VOLTAGE DROP % CURRENT CARRYING CONDUCTOR TYPE AND SIZE (AWG) EQUIPMENT GROUNDING CONDUCTOR SIZE (AWG) NOTES - FREE AIR WHERE PV WIRE IS PROTECTED FROM PHYSICAL DAMAGE. ST-X INV-X 1 DC1.1 DC1.1-1 1-1/4" EMT 1 7 81%0.96 0.80 1.56 14 22 Cu-90C 55 25 18 42 450 1.48%2 - #8 AWG, CU-PV WIRE (1000V) 1 - #10 AWG, CU-THWN-2ST-X INV-X 1 DC1.1-2 14 22 55 25 18 42 1.48%2 - #8 AWG, CU-PV WIRE (1000V) ST-X INV-X 1 DC1.1-3 14 22 55 25 18 42 1.48%2 - #8 AWG, CU-PV WIRE (1000V) ST-X INV-X 1 DC1.2 DC1.2-1 1" EMT 1 5 95%0.96 0.80 1.56 14 22 Cu-90C 55 25 18 42 450 1.48%2 - #8 AWG, CU-PV WIRE (1000V) 1 - #10 AWG, CU-THWN-2 ST-X INV-X 1 DC1.2-2 14 22 55 25 18 42 1.48%2 - #8 AWG, CU-PV WIRE (1000V) Voltage Drop Table WIRES / EQUIPMENT INV-1 INV-2 INV-3 INV-4 INV-5 INV-6 INV-7 INV-8 INV-X to SPNLBD 0.78%0.78%0.76%0.76%0.89%0.89%1.01%1.01% SPNLBD to ACDS-1 0.04% ACDS-1 to SWBD 0.04% TOTAL AC VOLTAGE DROP 0.86%0.86%0.83%0.83%0.96%0.96%1.08%1.08% TOTAL DC VOLTAGE DROP 1.48% TOTAL VOLTAGE DROP 2.34%2.34%2.31%2.31%2.45%2.45%2.56%2.56% STAMP: AL B E R T S O N S 5 9 8 SA N T A A N A , C A 9 2 7 0 5 RE V DA T E DE S C R I P T I O N PROJECT NUMBER: SHEET TITLE: SHEET NUMBER: REVISION: 20 0 0 1 7 T H S T .