| 174 / | HD | ELECTRICITY: CONDUCTORS AND INSULATORS | 
| 68.1 | DF | CONDUITS, CABLES OR CONDUCTORS {15} | 
| 110 R | DF | .~ Insulated {21} | 
| 113 R | DF | .~.~ Multiple conductor {7} | 
| 117 R | DF | .~.~.~ Assemblies of noncircular section {5} | 
| 117 FF | ![]()  | .~.~.~.~ Conductor itself is flat |