NBN · How to read a NBN cable code
I in a NBN cable code
This symbol has more than one meaning in this system; which one applies depends on where it stands in the designation. The decoder tries each.
| Symbol | Meaning | Part of the cable |
|---|---|---|
| I | Insulated (Used With Preceding Letter) | Insulation compound |
| I | Impregnated Paper Insulation And Lead Sheath | Metal sheath |
Source: The 2016 symbol tables of this site