initial commit

.gitignore

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+/tests/
+test*
+__pycache__

jepl.py

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+'''
+JMK Engineering Inc. Python Library for design and such.
+by: Jeff MacKinnon
+
+email: jeff@jmkengineering.com
+'''
+
+import math
+import tables as tables
+
+
+def conductor_size(current, temp = 75, material = 'cu', code = 'CEC', raceway = True, ambient = 30, max = 500):
+
+    '''
+    The default temp column will be the 75C column as most terminals are rated for this.
+    The default code is CEC as that is where I am.
+
+    I still need to incorporate ambient temperature deratings, but that will be a future improvement
+
+    '''
+
+    material = material.upper()
+    code = code.upper()
+    max = str(max)
+    valid_temp = [60,75,90]
+    valid_temp_str = [str(x) for x in valid_temp]
+    valid_code = ['CEC', 
+    ]
+    valid_material = ['CU',
+                      'AL',
+    ]
+
+    #check to make sure that the values are valid
+    if temp not in valid_temp:
+        return print(temp + " is not valid. The valid temps are "+ str(valid_temp_str))
+    if code not in valid_code:
+        return print(code + " is not a valid code. The valid codes are "+ str(valid_code))
+    if material not in valid_material:
+        return print(material + " is not a valid material. I should be 'al' or 'cu'.")
+
+    # select the correct code table
+    if (code == 'CEC') & (material == 'CU') & (raceway == False):
+        #code_table = tables.CEC_table1
+        return (' I haven\'t created this table yet')
+    elif (code == 'CEC') & (material == 'CU') & (raceway == True):
+        code_table = tables.CEC_table2
+    elif (code =='CEC') & (material =='AL') & (raceway == False):
+        #code_table = tables.CEC_table3
+        return (' I haven\'t created this table yet')
+    elif (code =='CEC') & (material =='AL') & (raceway == True):
+        #code_table = tables.CEC_table4
+        return (' I haven\'t created this table yet')
+    elif (code =='NEC') & (material =='CU'):
+        return (' I haven\'t created this table yet')
+    elif (code =='NEC') & (material =='AL'):
+        return (' I haven\'t created this table yet')
+    else:
+        return ('The variables were\'t right, but I\'m a loss to why.')
+    
+    temp = str(temp)
+    
+    max_current_loc = code_table.loc[code_table['size'] == max][str(temp)]
+    max_current = max_current_loc.iloc[0]
+
+    num_parallel = math.ceil(current / max_current) 
+    con_current = current / num_parallel
+ 
+    size = code_table[code_table[temp].ge(con_current)]['size'].iloc[0]
+
+    return [size,num_parallel]
+
+
+
+

tables.py

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+import pandas as pd
+
+CEC21_table2 = pd.DataFrame([['14',15,20,25],
+                      ['12',20,25,30],
+                      ['10',30,35,40],
+                      ['8',40,50,55],
+                      ['6',40,50,55],
+                      ['4',70,85,95],
+                      ['3',85,100,115],
+                      ['2',95,115,130],
+                      ['1',110,130,145],
+                      ['0',125,150,170],
+                      ['00',145,175,195],
+                      ['000',165,200,225],
+                      ['0000',195,230,260],
+                      ['250',215,255,290],
+                      ['300',240,285,320],
+                      ['350',260,310,350],
+                      ['400', 280,335,380],
+                      ['500',320,380,430],
+                      ['600',350,420,475],
+                      ['700',385,460,520],
+                      ['750',400,475,535],
+                      ['800',410,490,555],
+                      ['900',435,520,585],
+                      ['1000',455,545,615]
+                
+                     ], 
+                      columns = ['size','60','75','90']
+                    )
+
+CEC_table2 = CEC21_table2