TFF
7 coding systems recognise this code
NEC / UL (USA)
| Symbol | Meaning |
T | Thermoplastic (PVC) insulation |
FF | Flexible fixture (stranded) wire |
TFF | Thermoplastic flexible fixture wire, no nylon. 600 V, 60 C (UNVERIFIED). UL 66; NEC Article 402 |
Telecom/Signal/Fiber Optic (VDE 0815 - 0816 - 0888)
| Symbol | Meaning |
T | Distribution Cable |
F | Jelly Compound |
F | Jelly Compound |
NEC 402
| Symbol | Meaning |
T | Thermoplastic Insulation |
FF | Fixture Wire, Flexible Stranding |
CEI-UNEL 35011 (Italy)
| Symbol | Meaning |
T | Telephone Cable |
F | Round Steel Wire |
F | Round Steel Wire |
NBN
| Symbol | Meaning |
T | Telephone Cable |
F | Heavy Load (1000 V) |
F | Heavy Load (1000 V) |
Swiss
| Symbol | Meaning |
T | Thermoplastic Insulation And Jacket |
FF | Double Layer Flat Galvanized Steel Wire |
KEMA
| Symbol | Meaning |
T | Thermoplastic Elastomer Insulation |
FF | Ultra Fine-Wired In Flexible Cables-Class 6 |