code: def _load_equipment_data(self):
          
  
          package_path = edisgo.__path__[0]
          equipment_dir = self.config['system_dirs']['equipment_dir']
  
          data = {}
          equipment = {'mv': ['trafos', 'lines', 'cables'],
                       'lv': ['trafos', 'cables']}
  
          for voltage_level, eq_list in equipment.items():
              for i in eq_list:
                  equipment_parameters = self.config['equipment'][
                      'equipment_{}_parameters_{}'.format(voltage_level, i)]
                  data['{}_{}'.format(voltage_level, i)] = pd.read_csv(
                      os.path.join(package_path, equipment_dir,
                                   equipment_parameters),
                      comment='#', index_col='name',
                      delimiter=',', decimal='.')
  
          return data
docs: Load equipment data for transformers, cables etc.
  
          Returns
          -------
          :obj:`dict` of :pandas:`pandas.DataFrame<dataframe>`