| 174 / | HD | ELECTRICITY: CONDUCTORS AND INSULATORS |
| 68.1 | DF | CONDUITS, CABLES OR CONDUCTORS {15} |
| 110 R | DF | .~ Insulated {21} |
| 113 R | ![]() | .~.~ Multiple conductor {7} |
| 114 R | DF | .~.~.~> Split conductor {1} |
| 115 | DF | .~.~.~> Dissimilar or auxiliary conducting elements |
| 116 | DF | .~.~.~> With filler insulation |
| 117 R | DF | .~.~.~> Assemblies of noncircular section {5} |
| 113 A | DF | .~.~.~> Radially compressed |
| 113 AS | DF | .~.~.~> Air-spaced |
| 113 C | DF | .~.~.~> Insulating core |