updating for voltage drop and bonding
This commit is contained in:
Jeff
parent
d979d72e86
commit
2e8ca93748
5 changed files with 426 additions and 178 deletions
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@ -120,4 +120,27 @@ cec21table4 = [
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['1500', 435, 520, 585],
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['1500', 435, 520, 585],
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['1750', 455, 545, 615],
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['1750', 455, 545, 615],
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['2000', 470, 560, 630]
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['2000', 470, 560, 630]
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]
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cec21table16 = [
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['current','copper wire','copper bus','aluminum wire','aluminum bus'],
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[20,'14',2,'12',3.5],
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[30,'12',3.5,'10',5.5],
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[60,'10',5.5,'8',8.5],
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[100,'8',8.5,'6',10.5],
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[200,'6',10.5,'4',21],
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[300,'4',21,'2',26.5],
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[400,'3',26.5,'1',33.5],
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[500,'2',33.5,'1/0',42.5],
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[600,'1',42.5,'2/0',53.5],
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[800,'1/0',53.5,'3/0',67.5],
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[1000,'2/0',67.5,'4/0',84],
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[1200,'3/0',84,'250',127],
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[1600,'4/0',107,'350',177.5],
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[2000,'250',127.5,'400',203],
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[2500,'350',177.5,'500',253.5],
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[3000,'400',203,'600',355],
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[4000,'500',253.5,'800',405.5],
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[5000,'700',355,'1000',507],
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[6000,'800',405.5,'1250',633.5],
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]
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]
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150
jepl/Tables/CEC24Tables.py
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150
jepl/Tables/CEC24Tables.py
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@ -0,0 +1,150 @@
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# CEC 2024, Tables
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cec24table1 = [
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#['size', '60', '75', '90'],
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['14', 25, 30, 35],
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['12', 30, 35, 40],
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['10', 40, 50, 55],
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['8', 60, 70,80],
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['6', 80, 95, 105],
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['4', 105, 125, 140],
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['3', 120, 145, 165],
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['2', 140, 170, 190],
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['1', 165, 195, 220],
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['1/0', 195, 230, 260],
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['2/0', 220, 265, 300],
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['3/0', 260, 310, 350],
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['4/0', 300, 360, 405],
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['250', 340, 405, 455],
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['300', 370, 445, 500],
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['350', 425, 505, 570],
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['400', 455, 545, 615],
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['500', 520, 620, 700],
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['600', 580, 690, 780],
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['700', 630, 755, 850],
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['750', 655, 785, 885],
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['800', 680, 815, 920],
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['1000', 785, 870, 980],
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['1250', 890, 1065, 1200],
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['1500', 985, 1175, 1325],
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['1750', 1070, 1280, 1445],
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['2000', 1160, 1385, 1560]
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]
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cec24table2 = [
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#['size', '60', '75', '90'],
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['14', 15, 20, 25],
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['12', 20, 25, 30],
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['10', 30, 35, 40],
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['8', 40, 50, 55],
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['6', 40, 50, 55],
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['4', 70, 85, 95],
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['3', 85, 100, 115],
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['2', 95, 115, 130],
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['1', 110, 130, 145],
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['1/0', 125, 150, 170],
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['2/0', 145, 175, 195],
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['3/0', 165, 200, 225],
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['4/0', 195, 230, 260],
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['250', 215, 255, 290],
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['300', 240, 285, 320],
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['350', 260, 310, 350],
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['400', 280, 335, 380],
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['500', 320, 380, 430],
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['600', 350, 420, 475],
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['700', 385, 460, 520],
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['750', 400, 475, 535],
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['800', 410, 490, 555],
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['900', 435, 520, 585],
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['1000', 455, 545, 615],
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['1250', 495, 590, 615],
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['1500', 525, 625, 705],
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['1750', 545, 650, 735],
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['2000', 555, 665, 750]
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]
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cec24table3 = [
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#['size', '60', '75', '90'],
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['12', 25, 30, 35],
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['10', 35, 40, 45],
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['8', 45, 55, 60],
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['4', 65, 75, 85],
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['3', 95, 115, 130],
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['2', 115, 135, 150],
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['1', 134, 155, 175],
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['1/0', 150, 180, 205],
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['2/0', 175, 210, 235],
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['3/0', 200, 240, 270],
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['4/0', 235, 280, 315],
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['250', 265, 315, 355],
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['300', 295, 350, 395],
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['350', 330, 395, 445],
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['400', 355, 425, 480],
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['500', 405, 485, 545],
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['600', 455, 545, 615],
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['700', 500, 595, 670],
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['750', 520, 620, 700],
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['800', 540, 645, 725],
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['900', 585, 700, 790],
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['1000', 630, 750, 845],
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['1250', 715, 855, 965],
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['1500', 795, 950, 1070],
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['1750', 880, 1050, 1185],
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['2000', 965, 1150, 1295]
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]
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cec24table4 = [
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#['size', '60', '75', '90'],
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['12', 15, 20, 25],
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['10', 25, 30, 35],
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['8', 35, 40, 45],
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['6', 40, 50, 55],
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['4', 55, 65, 75],
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['3', 65, 75, 85],
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['2', 75, 90, 100],
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['1', 85, 100, 115],
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['1/0', 100, 120, 165],
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['2/0', 115, 165, 150],
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['3/0', 160, 155, 175],
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['4/0', 150, 180, 205],
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['250', 170, 205, 230],
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['300', 195, 230, 260],
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['350', 210, 250, 280],
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['400', 225, 270, 305],
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['500', 260, 310, 350],
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['600', 285, 340, 385],
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['700', 315, 375, 425],
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['750', 320, 385, 435],
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['800', 330, 395, 445],
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['900', 355, 425, 480],
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['1000', 375, 445, 500],
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['1250', 405, 485, 545],
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['1500', 435, 520, 585],
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['1750', 455, 545, 615],
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['2000', 470, 560, 630]
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]
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# Appendix Tables
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cec24tableD3 = [
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['size','cu_dc', 'cu_100pf', 'cu_cable_90pf', 'cu_cable_80pf', 'cu_raceway_90pf', 'cu_raceway_80pf', 'al_dc', 'al_100pf', 'al_cable_90pf', 'al_cable_80pf', 'al_raceway_90pf', 'al_raceway_80pf'],
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['14', 10.2, 10.2, 9.92, 9.67, 10, 9.67, None, None, None, None, None, None],
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['12', 6.38, 6.38, 6.25, 6.1, 6.26, 6.11, 10.5, 10.5, 10.3, 10, 10.3, 9.99],
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['10', 4.03, 4.03, 3.96, 3.87, 3.96, 3.87, 6.58, 6.58, 6.44, 6.28, 6.45, 6.29],
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['8', 2.54, 2.54, 2.5, 2.45, 2.51, 2.45, 4.14, 4.14, 4.07, 3.97, 4.07, 3.98],
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['6', 1.59, 1.59, 1.58, 1.55, 1.58, 1.55, 2.62, 2.62, 2.58, 2.52, 2.58, 2.53],
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['4', 1.01, 1.01, 1.01, 0.987, 1.01, 1, 1.65, 1.65, 1.63, 1.6, 1.64, 1.61],
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['3', 0.792, 0.792, 0.797, 0.787, 0.801, 0.792, 1.3, 1.31, 1.3, 1.27, 1.3, 1.28],
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['2', 0.626, 0.627, 0.636, 0.629, 0.639, 0.635, 1.04, 1.04, 1.04, 1.02, 1.04, 1.03],
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['1', 0.5, 0.5, 0.512, 0.509, 0.516, 0.515, 0.82, 0.82, 0.823, 0.812, 0.827, 0.818],
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['1/0', 0.395, 0.396, 0.41, 0.409, 0.414, 0.415, 0.651, 0.652, 0.659, 0.652, 0.663, 0.657],
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['2/0', 0.314, 0.316, 0.331, 0.332, 0.335, 0.338, 0.516, 0.517, 0.526, 0.522, 0.53, 0.528],
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['3/0', 0.249, 0.251, 0.267, 0.27, 0.271, 0.275, 0.408, 0.409, 0.42, 0.419, 0.424, 0.425],
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['4/0', 0.197, 0.2, 0.217, 0.221, 0.221, 0.226, 0.326, 0.327, 0.341, 0.341, 0.345, 0.347],
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['250', 0.167, 0.171, 0.188, 0.193, 0.192, 0.198, 0.275, 0.277, 0.291, 0.293, 0.295, 0.299],
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['300', 0.14, 0.144, 0.162, 0.167, 0.166, 0.172, 0.229, 0.231, 0.247, 0.249, 0.25, 0.255],
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['350', 0.12, 0.125, 0.143, 0.148, 0.147, 0.154, 0.196, 0.199, 0.215, 0.218, 0.219, 0.224],
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['400', 0.105, 0.111, 0.129, 0.135, 0.133, 0.14, 0.172, 0.175, 0.191, 0.195, 0.195, 0.201],
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['500', 0.0836, 0.0912, 0.11, 0.116, 0.114, 0.121, 0.138, 0.141, 0.158, 0.163, 0.162, 0.168],
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['600', 0.0697, 0.0785, 0.0969, 0.104, 0.101, 0.109, 0.115, 0.119, 0.136, 0.142, 0.14, 0.147],
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['750', 0.0558, 0.0668, 0.085, 0.0915, 0.0889, 0.097, 0.0916, 0.0968, 0.115, 0.121, 0.119, 0.126],
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['1000', 0.0417, 0.0558, 0.0739, 0.0805, 0.0778, 0.086, 0.0686, 0.0758, 0.0933, 0.0994, 0.0973, 0.105]
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]
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@ -10,174 +10,109 @@ Circuit Design Functions
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import pandas as pd
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import pandas as pd
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import numpy as np
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import numpy as np
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import math
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import math
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import sqlite3
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import bisect
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# Need to add the various table files here.
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# Need to add the various table files here.
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from .Tables.CEC21Tables import *
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from .jepl_tables import *
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def vd(current,length,resistance,runs=1):
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def voltage_drop(voltage, current, conductor_size, length, num_phase = 3, material ='cu', num_runs = 1, code = 'CEC', power_factor = 'dc', raceway = True,insul_temp = 75):
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'''
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Calculates the voltage drop across the conductor length.
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If there are parallel runs we assume that they are approximately the same length.
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Therefore from the general equation of:
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1/Req = 1/R1 + 1/R2 ... and all R1-Rn are the same.
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Req = R/n or in the equation below r = resistance / runs.
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'''
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r = (length*resistance/1000) / runs
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vd=round(2*current*r,8)
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return vd
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def percentvd(vd,nominal):
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percent = (vd/nominal)*100
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return percent
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def voltage_drop(nominal_voltage, current, conductor_size, length,material ='cu', num_runs = 1, code = 'CEC'):
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'''
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'''
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This function will return the drop in voltage and in percent of the supply.
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This function will return the drop in voltage and in percent of the supply.
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nominal_voltage = int
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For CEC this function uses Table D3 and the function VD = K * F * i * L / 1000
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current = float
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K -> is a table lookup based on the conductor material, size raceway and powerfactor
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conductor_size = string
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F -> is the system factor, 2 for single phase and sqrt(3) for three phase
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Voltage drop equation is:
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Vdrop = 2 * I * L * R/1000
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I = load current
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L = circuit length in meters
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R = Resistance in ohms/km
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'''
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'''
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# Check to see if the db we need exists
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material = material.upper()
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code = code.upper()
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power_factor = power_factor.upper()
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#conductor_size = str(conductor_size)
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valid_insul_temp = [60,75,90]
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valid_code = ['CEC',
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]
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valid_material = ['CU',
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'AL',
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]
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valid_power_factor = ['DC',
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'1',
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'0.9',
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'0.8'
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]
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import os
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if insul_temp not in valid_insul_temp:
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import sys
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return print(temp + " is not valid. The valid temps are "+ str(valid_insul_temp))
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if os.path.isfile('jepl-cable.db') == False:
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if code not in valid_code:
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return (print("Run init. \nCopy jeplinit.py to the same folder as this file and add \n%run jeplinit.py jepl/folder/location/\nto the notebook. Make sure there is a trailing slash."))
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return print(code + " is not a valid code. The valid codes are "+ str(valid_code))
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if material not in valid_material:
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return print(material + " is not a valid material. I should be 'al' or 'cu'.")
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if power_factor not in valid_power_factor:
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return print(valid_power_factor + " is not a valid load_type.")
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if (material == 'al'):
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#
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# Find K
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try:
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#
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with sqlite3.connect("jepl-cable.db") as con:
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cur = con.cursor()
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cur.execute('SELECT "AC Resistance" FROM "SW-Spec 25051" WHERE "Conductor Number" = 3 AND "Conductor Size"=?', (conductor_size,))
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resistance = cur.fetchone()[0]
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#print(resistance)
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except sqlite3.OperationalError as e:
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print(e)
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elif (material == 'cu'):
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try:
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with sqlite3.connect("jepl-cable.db") as con:
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cur = con.cursor()
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cur.execute('SELECT "AC Resistance" FROM "SW-Spec 25055" WHERE "Conductor Number" = 3 AND "Conductor Size"=?', (conductor_size,))
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resistance = cur.fetchone()[0]
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except sqlite3.OperationalError as e:
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print(e)
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# Select the correct table
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if (code == 'CEC') :
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D3headers = cectableD3[0]
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D3rows = cectableD3[1:]
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df = pd.DataFrame(D3rows, columns=D3headers)
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else:
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else:
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return (print("error, choose material as cu or al"))
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return ('The variables were\'t right, but I\'m a loss to why.')
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voltage = vd(current,length,resistance,num_runs)
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# Select the correct column
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percent = percentvd(voltage,nominal_voltage)
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return [voltage, percent]
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#
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# voltage_drop_conductors is wrong
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#
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#
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def voltage_drop_conductors(voltage,current,distance,v_drop_percent = 0.03,runs = 1,material='cu'):
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'''
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Calculates the minimum conductor size to accomodate for voltage drop based on:
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voltage -> system nominal voltage
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current -> the peak/design load for the circuit
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distance -> meters
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v_drop_percent -> The design voltage drop (default 0.03 or 3%)
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runs -> number of parallel runs (default 1)
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material -> the conductor material, either 'al' or 'cu'. (default 'cu')
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First we calculate the necessary resistivity:
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resistivity = ohms/km
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but the distance is 2x (there and back)
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resistivity = ohms/[(2 * distance)/1000] {ohms/km}
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ohms = v/I or (v_drop/voltage)/current
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|
||||||
v_drop = v_drop_percent * voltage
|
|
||||||
|
|
||||||
resistivity = (v_drop/current)/[(2 * distance)/1000]
|
|
||||||
|
|
||||||
This works for 1 run, but for parallel runs Rtot = R/n where n is the number of runs.
|
|
||||||
in this equation we are looking for R, not Rtot, so we multiply the top by the number of runs.
|
|
||||||
|
|
||||||
therefore:
|
|
||||||
resistivity = [(v_drop/current)*runs]/[(2 * distance)/1000]
|
|
||||||
|
|
||||||
'''
|
|
||||||
|
|
||||||
# Determine the resistivity needed in ohms/km
|
|
||||||
|
|
||||||
v_drop = v_drop_percent * voltage
|
|
||||||
|
|
||||||
resistivity = ((v_drop/current)*runs)/((2 * distance)/1000)
|
|
||||||
|
|
||||||
if resistivity < 0.1214:
|
|
||||||
print("add parallel runs")
|
|
||||||
|
|
||||||
import os
|
|
||||||
import sys
|
|
||||||
if os.path.isfile('jepl-cable.db') == False:
|
|
||||||
return (print("Run init. \nCopy jeplinit.py to the same folder as this file and add \n%run jeplinit.py jepl/folder/location/\nto the notebook. Make sure there is a trailing slash."))
|
|
||||||
|
|
||||||
# Lookup the conductor size that meets this resistivity.
|
|
||||||
|
|
||||||
if (material == 'al'):
|
|
||||||
|
|
||||||
try:
|
|
||||||
with sqlite3.connect("jepl-cable.db") as con:
|
|
||||||
cur = con.cursor()
|
|
||||||
cur.execute('SELECT "Conductor Size" FROM "SW-Spec 25055" WHERE "Conductor Number" = 3 AND "AC Resistance"<?', (resistivity,))
|
|
||||||
conductor = str(cur.fetchone()[0])
|
|
||||||
|
|
||||||
#print(conductor)
|
|
||||||
|
|
||||||
except sqlite3.OperationalError as e:
|
|
||||||
print(e)
|
|
||||||
|
|
||||||
elif (material == 'cu'):
|
|
||||||
try:
|
|
||||||
with sqlite3.connect("jepl-cable.db") as con:
|
|
||||||
cur = con.cursor()
|
|
||||||
cur.execute('SELECT "Conductor Size" FROM "SW-Spec 25051" WHERE "Conductor Number" = 3 AND "AC Resistance"<?', (resistivity,))
|
|
||||||
conductor = str(cur.fetchone()[0])
|
|
||||||
|
|
||||||
#print(conductor)
|
|
||||||
|
|
||||||
except sqlite3.OperationalError as e:
|
|
||||||
print(e)
|
|
||||||
|
|
||||||
|
if (material == 'CU') & (power_factor == 'DC'):
|
||||||
|
column = 'cu_dc'
|
||||||
|
elif material == 'CU' & power_factor == '1':
|
||||||
|
column = 'cu_100pf'
|
||||||
|
elif material == 'CU' & power_factor == '0.9' & raceway == False:
|
||||||
|
column = 'cu_cable_90pf'
|
||||||
|
elif material == 'CU' & power_factor == '0.8' & raceway == False:
|
||||||
|
column = 'cu_cable_80pf'
|
||||||
|
elif material == 'CU' & power_factor == '0.9' & raceway == True:
|
||||||
|
column = 'cu_raceway_90pf'
|
||||||
|
elif material == 'CU' & power_factor == '0.8' & raceway == True:
|
||||||
|
column = 'cu_raceway_80pf'
|
||||||
|
elif material == 'AL' & power_factor == 'DC':
|
||||||
|
column = 'al_dc'
|
||||||
|
elif material == 'AL' & power_factor == '1':
|
||||||
|
column = 'al_100pf'
|
||||||
|
elif material == 'AL' & power_factor == '0.9' & raceway == False:
|
||||||
|
column = 'al_cable_90pf'
|
||||||
|
elif material == 'AL' & power_factor == '0.8' & raceway == False:
|
||||||
|
column = 'al_cable_80pf'
|
||||||
|
elif material == 'AL' & power_factor == '0.9' & raceway == True:
|
||||||
|
column = 'al_raceway_90pf'
|
||||||
|
elif material == 'AL' & power_factor == '0.8' & raceway == True:
|
||||||
|
column = 'al_raceway_80pf'
|
||||||
else:
|
else:
|
||||||
return (print("error, choose material as cu or al"))
|
return ('Can\'t calculate K factor')
|
||||||
|
|
||||||
return (conductor)
|
# Determine the ampacity of the max conductor size
|
||||||
|
K_loc = df.loc[df['size'] == conductor_size,column]
|
||||||
|
K = K_loc.item()
|
||||||
|
#print(K)
|
||||||
|
|
||||||
# These functions need to be re-written with the databases.
|
#
|
||||||
|
# Find F
|
||||||
|
#
|
||||||
|
|
||||||
|
if num_phase == 3:
|
||||||
|
F = math.sqrt(3)
|
||||||
|
else:
|
||||||
|
F = 2
|
||||||
|
|
||||||
|
#print(F)
|
||||||
|
#print(current)
|
||||||
|
#print(length)
|
||||||
|
voltage_drop = K * F * current * length / 1000
|
||||||
|
percent_voltage_drop = (voltage_drop / voltage)
|
||||||
|
|
||||||
|
return [voltage_drop, percent_voltage_drop]
|
||||||
|
|
||||||
|
|
||||||
def current_for_lookup(current,max_current):
|
def current_for_lookup(current,max_current):
|
||||||
|
|
@ -242,13 +177,13 @@ def conductor_size(current, temp = 75, material = 'cu', code = 'CEC', raceway =
|
||||||
# Seclect the proper table
|
# Seclect the proper table
|
||||||
|
|
||||||
if (code == 'CEC') & (material == 'CU') & (raceway == False):
|
if (code == 'CEC') & (material == 'CU') & (raceway == False):
|
||||||
df = pd.DataFrame(cec21table1, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable1, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'CU') & (raceway == True):
|
elif (code == 'CEC') & (material == 'CU') & (raceway == True):
|
||||||
df = pd.DataFrame(cec21table2, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable2, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'AL') & (raceway == False):
|
elif (code == 'CEC') & (material == 'AL') & (raceway == False):
|
||||||
df = pd.DataFrame(cec21table3, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable3, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'AL') & (raceway == True):
|
elif (code == 'CEC') & (material == 'AL') & (raceway == True):
|
||||||
df = pd.DataFrame(cec21table4, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable4, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code =='NEC') & (material =='CU'):
|
elif (code =='NEC') & (material =='CU'):
|
||||||
return (' I haven\'t created this table yet')
|
return (' I haven\'t created this table yet')
|
||||||
elif (code =='NEC') & (material =='AL'):
|
elif (code =='NEC') & (material =='AL'):
|
||||||
|
|
@ -307,13 +242,13 @@ def conductor_ampacity(conductor, temp = 75, material = 'cu', code = 'CEC', race
|
||||||
column = '60C'
|
column = '60C'
|
||||||
|
|
||||||
if (code == 'CEC') & (material == 'CU') & (raceway == False):
|
if (code == 'CEC') & (material == 'CU') & (raceway == False):
|
||||||
df = pd.DataFrame(cec21table1, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable1, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'CU') & (raceway == True):
|
elif (code == 'CEC') & (material == 'CU') & (raceway == True):
|
||||||
df = pd.DataFrame(cec21table2, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable2, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'AL') & (raceway == False):
|
elif (code == 'CEC') & (material == 'AL') & (raceway == False):
|
||||||
df = pd.DataFrame(cec21table3, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable3, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code == 'CEC') & (material == 'AL') & (raceway == True):
|
elif (code == 'CEC') & (material == 'AL') & (raceway == True):
|
||||||
df = pd.DataFrame(cec21table4, columns=['size', '60C', '75C', '90C'])
|
df = pd.DataFrame(cectable4, columns=['size', '60C', '75C', '90C'])
|
||||||
elif (code =='NEC') & (material =='CU'):
|
elif (code =='NEC') & (material =='CU'):
|
||||||
return (' I haven\'t created this table yet')
|
return (' I haven\'t created this table yet')
|
||||||
elif (code =='NEC') & (material =='AL'):
|
elif (code =='NEC') & (material =='AL'):
|
||||||
|
|
@ -328,10 +263,9 @@ def conductor_ampacity(conductor, temp = 75, material = 'cu', code = 'CEC', race
|
||||||
|
|
||||||
return conductor_ampacity
|
return conductor_ampacity
|
||||||
|
|
||||||
def bonding_conductor(conductor_ampacity,bus=False,material='cu',code = 'CEC'):
|
|
||||||
|
|
||||||
'''
|
'''
|
||||||
This function
|
This function calculates the bonding wire or bus based on the circuit ampacity.
|
||||||
|
|
||||||
'''
|
'''
|
||||||
|
|
||||||
|
|
@ -343,30 +277,33 @@ def bonding_conductor(conductor_ampacity,bus=False,material='cu',code = 'CEC'):
|
||||||
'AL',
|
'AL',
|
||||||
]
|
]
|
||||||
|
|
||||||
if (material == 'CU') & (bus == False):
|
# Select the correct table
|
||||||
db_index = 1
|
if code == 'CEC':
|
||||||
elif (material == 'AL') & (bus == False):
|
table16headers = cectable16[0]
|
||||||
db_index = 3
|
table16rows = cectable16[1:]
|
||||||
elif (material == 'CU') & (bus == True):
|
df = pd.DataFrame(table16rows, columns=table16headers)
|
||||||
db_index = 2
|
|
||||||
elif (material == 'AL') & (bus == True):
|
|
||||||
db_index = 4
|
|
||||||
else:
|
else:
|
||||||
return ('The variables were\'t right, but I\'m a loss to why.')
|
return ('The variables were\'t right, but I\'m a loss to why.')
|
||||||
|
|
||||||
if (code == 'CEC'):
|
# Select the correct column
|
||||||
try:
|
|
||||||
with sqlite3.connect("jepl-cec21.db") as con:
|
|
||||||
cur = con.cursor()
|
|
||||||
cur.execute('SELECT * FROM "Table16" WHERE "current" >= ? ', (conductor_ampacity,))
|
|
||||||
bond_result = cur.fetchone()
|
|
||||||
bond_size = bond_result[db_index]
|
|
||||||
|
|
||||||
except sqlite3.OperationalError as e:
|
|
||||||
print(e)
|
|
||||||
|
|
||||||
|
if material == 'CU' and bus == False:
|
||||||
|
column = 'copper wire'
|
||||||
|
elif material == 'CU' and bus == True:
|
||||||
|
column = 'copper bus'
|
||||||
|
elif material == 'AL' and bus == False:
|
||||||
|
column = 'aluminum wire'
|
||||||
|
elif material == 'AL' and bus == True:
|
||||||
|
column = 'caluminum bus'
|
||||||
else:
|
else:
|
||||||
return ('The variables were\'t right, but I\'m a loss to why.')
|
return ('Can\'t calculate K factor')
|
||||||
|
|
||||||
|
# Calculate the absolute difference for all values and find the index of the minimum difference
|
||||||
|
sectioned_df = df.loc[df['current'] >= conductor_ampacity,'current']
|
||||||
|
closest_index = sectioned_df.idxmin()
|
||||||
|
|
||||||
|
# Retrieve the nearest value using the found index
|
||||||
|
bond_size = df[column].iloc[closest_index]
|
||||||
|
|
||||||
return bond_size
|
return bond_size
|
||||||
|
|
||||||
|
|
|
||||||
43
jepl/jepl_tables.py
Normal file
43
jepl/jepl_tables.py
Normal file
|
|
@ -0,0 +1,43 @@
|
||||||
|
'''
|
||||||
|
JMK Engineering Inc. Python Library for design and such.
|
||||||
|
by: Jeff MacKinnon
|
||||||
|
|
||||||
|
email: jeff@jmkengineering.com
|
||||||
|
'''
|
||||||
|
|
||||||
|
#
|
||||||
|
# Import all the table files. This is for both NEC and CEC and all of the years that we may need.
|
||||||
|
#
|
||||||
|
|
||||||
|
from .Tables.CEC21Tables import *
|
||||||
|
from .Tables.CEC24Tables import *
|
||||||
|
|
||||||
|
|
||||||
|
#
|
||||||
|
# Set the default tables for CEC and NEC.
|
||||||
|
#
|
||||||
|
|
||||||
|
'''
|
||||||
|
This will also allow you to change the table on a case-by-case basis.
|
||||||
|
Ideally we will be able to select the code year as an option in the future.
|
||||||
|
|
||||||
|
'''
|
||||||
|
|
||||||
|
|
||||||
|
cectable1 = cec21table1
|
||||||
|
cectable2 = cec21table2
|
||||||
|
cectable3 = cec21table3
|
||||||
|
cectable4 = cec21table4
|
||||||
|
cectable16 = cec21table16
|
||||||
|
|
||||||
|
# Appendix Tables
|
||||||
|
|
||||||
|
cectableD3 = cec24tableD3
|
||||||
|
|
||||||
|
|
||||||
|
#print(cec21table1)
|
||||||
|
|
||||||
|
def Test():
|
||||||
|
print( "JMK Python Module works! !")
|
||||||
|
|
||||||
|
|
||||||
97
tools.py
97
tools.py
|
|
@ -98,7 +98,75 @@ def condamp(args):
|
||||||
result = jmk.conductor_ampacity(args.conductor, temp = temp, material = material, code = code, raceway = raceway)
|
result = jmk.conductor_ampacity(args.conductor, temp = temp, material = material, code = code, raceway = raceway)
|
||||||
print(result)
|
print(result)
|
||||||
|
|
||||||
|
def bonding(args):
|
||||||
|
|
||||||
|
if args.material == None:
|
||||||
|
material = 'cu'
|
||||||
|
else:
|
||||||
|
material = args.material
|
||||||
|
if args.code == None:
|
||||||
|
code = 'CEC'
|
||||||
|
else:
|
||||||
|
code = args.code
|
||||||
|
if args.bus == None:
|
||||||
|
bus = False
|
||||||
|
else:
|
||||||
|
bus = args.bus
|
||||||
|
|
||||||
|
result = jmk.bonding_conductor(args.circuit_ampacity, bus = bus, material = material, code = code)
|
||||||
|
print(result)
|
||||||
|
|
||||||
|
|
||||||
|
def voltagedrop(args):
|
||||||
|
|
||||||
|
voltage = args.voltage
|
||||||
|
current = args.current
|
||||||
|
size = args.conductor_size
|
||||||
|
length = args.length
|
||||||
|
if args.phases == None:
|
||||||
|
num_phase = 3
|
||||||
|
elif args.phases == '1':
|
||||||
|
num_phase = 1
|
||||||
|
elif args.phases == '3':
|
||||||
|
num_phase = 3
|
||||||
|
else:
|
||||||
|
print('--phase must be 1 or 2.')
|
||||||
|
if args.material == None:
|
||||||
|
material = 'cu'
|
||||||
|
else:
|
||||||
|
material = args.material
|
||||||
|
if args.runs == None:
|
||||||
|
num_runs = 1
|
||||||
|
else:
|
||||||
|
num_runs = args.runs
|
||||||
|
if args.runs == None:
|
||||||
|
num_runs = 1
|
||||||
|
else:
|
||||||
|
num_runs = args.runs
|
||||||
|
if args.code == None:
|
||||||
|
code = 'CEC'
|
||||||
|
else:
|
||||||
|
code = args.code
|
||||||
|
if args.powerfactor == None:
|
||||||
|
power_factor = 'dc'
|
||||||
|
else:
|
||||||
|
power_factor = args.powerfactor
|
||||||
|
if args.raceway == None:
|
||||||
|
raceway = True
|
||||||
|
elif args.raceway == 'n':
|
||||||
|
raceway = False
|
||||||
|
else:
|
||||||
|
raceway = True
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
if args.temp == None:
|
||||||
|
insul_temp = 75
|
||||||
|
else:
|
||||||
|
insul_temp = args.temp
|
||||||
|
|
||||||
|
result = jmk.voltage_drop(voltage, current, size, length, num_phase = num_phase, material = material, num_runs = num_runs, code = code, power_factor = power_factor, raceway = raceway, insul_temp = insul_temp)
|
||||||
|
print(result)
|
||||||
|
|
||||||
# Solar
|
# Solar
|
||||||
|
|
||||||
|
|
@ -156,7 +224,7 @@ try:
|
||||||
condsize_parser.set_defaults(func=condsize)
|
condsize_parser.set_defaults(func=condsize)
|
||||||
|
|
||||||
condamp_parser = subparsers.add_parser("condamp", help="Determine the ampacity of a conductor.")
|
condamp_parser = subparsers.add_parser("condamp", help="Determine the ampacity of a conductor.")
|
||||||
condamp_parser.add_argument("conductor", type=str, help="TThe conductor size in AWG/kcmil")
|
condamp_parser.add_argument("conductor", type=str, help="The conductor size in AWG/kcmil")
|
||||||
condamp_parser.add_argument("-t", "--temp", type=int, help="The temperature rating for the insulation, if none included is 60C. default: 60" )
|
condamp_parser.add_argument("-t", "--temp", type=int, help="The temperature rating for the insulation, if none included is 60C. default: 60" )
|
||||||
condamp_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
|
condamp_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
|
||||||
condamp_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
|
condamp_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
|
||||||
|
|
@ -164,6 +232,33 @@ try:
|
||||||
condamp_parser.add_argument("-a", "--ambient", type=float, help="Ambient temperature in celsious. default: 30")
|
condamp_parser.add_argument("-a", "--ambient", type=float, help="Ambient temperature in celsious. default: 30")
|
||||||
condamp_parser.set_defaults(func=condamp)
|
condamp_parser.set_defaults(func=condamp)
|
||||||
|
|
||||||
|
bonding_parser = subparsers.add_parser("bonding", help="Bonding conductor for the circuit, wire or bus.")
|
||||||
|
bonding_parser.add_argument("circuit_ampacity", type=float, help="Circuit ampacity.")
|
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bonding_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
|
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|
bonding_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
|
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|
bonding_parser.add_argument("-b", "--bus", type=bool, help="Bus or wire bond, bus =True, wire = False.")
|
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|
bonding_parser.set_defaults(func=bonding)
|
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|
|
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|
|
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|
|
||||||
|
voltagedrop_parser = subparsers.add_parser("voltagedrop", help="Determine the voltage drop of a circuit.")
|
||||||
|
voltagedrop_parser.add_argument("voltage", type=float, help="The circuit voltage.")
|
||||||
|
voltagedrop_parser.add_argument("current", type=float, help="The circuit current")
|
||||||
|
voltagedrop_parser.add_argument("conductor_size", type=str, help="The conductor size.")
|
||||||
|
voltagedrop_parser.add_argument("length", type=float, help="The circuit length, in metres.")
|
||||||
|
voltagedrop_parser.add_argument("-t", "--temp", type=int, help="The temperature rating for the insulation, if none included is 60C. default: 75" )
|
||||||
|
voltagedrop_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
|
||||||
|
voltagedrop_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
|
||||||
|
voltagedrop_parser.add_argument("-r", "--raceway", type=str, help="If the conductors are in a raceway use y for yes and n for no.")
|
||||||
|
voltagedrop_parser.add_argument("-pf","--powerfactor", type=str, help="Power Factor. Valid options DC, 1, 0.9, 0.8. default dc")
|
||||||
|
voltagedrop_parser.add_argument("--phases", type=str, help="Number of phases, 1 or 3, default = 3.")
|
||||||
|
voltagedrop_parser.add_argument("--runs", type=int, help="Number of circuits in parallel, default 1.")
|
||||||
|
voltagedrop_parser.set_defaults(func=voltagedrop)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#
|
#
|
||||||
|
|
|
||||||
Loading…
Add table
Reference in a new issue