| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES | 
| 600 | DF | HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS {11} | 
| 601 | DF | .~ For electrical power distribution systems and devices {10} | 
| 605 | DF | .~.~ Electrical switchgear {9} | 
| 611 | DF | .~.~.~ Busbar arrangements {3} | 
| 613 |  | .~.~.~.~ Liquid insulated |