| 174 / | HD | ELECTRICITY: CONDUCTORS AND INSULATORS |
| 137 R | DF | INSULATORS {17} |
| 176 | DF | .~ With terminal elements {5} |
| 194 | ![]() | .~.~ Pin type {8} |
| 195 | DF | .~.~.~> Multi-part insulators |
| 196 | DF | .~.~.~> Plastic material adhered |
| 197 | DF | .~.~.~> Clamps or clasps |
| 198 | DF | .~.~.~> Rings or wedges |
| 199 | DF | .~.~.~> Expanded |
| 200 | DF | .~.~.~> With thimble in socket |
| 201 | DF | .~.~.~> Through pin |
| 202 | DF | .~.~.~> Screw or bayonet type {4} |