NEC 310 · How to read a NEC 310 cable code
U in a NEC 310 cable code
| Symbol | Meaning | Part of the cable |
|---|---|---|
| U | Underground Use | Other |
Source: The 2016 symbol tables of this site
Designations that use it
The same meaning in other coding systems
As recorded in the symbol tables: the same meaning, written with each system's own letters.