TPTNA

4 coding systems recognise this code

CEI-UNEL 35011 (Italy)

SymbolMeaning
TTelephone Cable
PPolyurethane (PUR)
TGlass Braid
NSteel Tape Armour
AAluminium Sheath, Pressed Or Welded, Smooth

NBN

SymbolMeaning
TTelephone Cable
PFoam-Skin Polyethylene
TMoving Installation
NChloroprene Rubber
ASteel Tape Or Steel Wire Armour

Swiss

SymbolMeaning
TThermoplastic Insulation And Jacket
PPaper Insulation
TThermoplastic Insulation And Jacket
NLow Smoke Zero Halogen Compound
AArmoured

IEEE 1580

SymbolMeaning
TThree Conductor Distribution
PCross Linked Polyolefin (XLPO)
TPolyvynil Chloride (PVC)
NChloroprene Rubber
AAluminium Armour