TFF

7 coding systems recognise this code

NEC / UL (USA)

SymbolMeaning
TThermoplastic (PVC) insulation
FFFlexible fixture (stranded) wire
TFFThermoplastic flexible fixture wire, no nylon. 600 V, 60 C (UNVERIFIED). UL 66; NEC Article 402

Telecom/Signal/Fiber Optic (VDE 0815 - 0816 - 0888)

SymbolMeaning
TDistribution Cable
FJelly Compound
FJelly Compound

NEC 402

SymbolMeaning
TThermoplastic Insulation
FFFixture Wire, Flexible Stranding

CEI-UNEL 35011 (Italy)

SymbolMeaning
TTelephone Cable
FRound Steel Wire
FRound Steel Wire

NBN

SymbolMeaning
TTelephone Cable
FHeavy Load (1000 V)
FHeavy Load (1000 V)

Swiss

SymbolMeaning
TThermoplastic Insulation And Jacket
FFDouble Layer Flat Galvanized Steel Wire

KEMA

SymbolMeaning
TThermoplastic Elastomer Insulation
FFUltra Fine-Wired In Flexible Cables-Class 6