THWX

4 coding systems recognise this code

NEC 310

SymbolMeaning
TThermoplastic Insulation
H75°C Insulation
WMoisture Resistant
XCross-Linked Polymer Insulation

CEI-UNEL 35011 (Italy)

SymbolMeaning
TTelephone Cable
HMetallic Paper, Carbon Paper Or Aluminium Tape Screen
WDivisible Flat Cable (Inetmediary Groove)
XHelically Bundled Visible Cores

NEK 606

SymbolMeaning
TCross-Linked Polyethylene (XLPE)
HChlorosulphonated Polyethylene - Csp
WCatenary Wire
XNo Sheath

NBN

SymbolMeaning
TTelephone Cable
HResistant To Humidity
WPolyethelene (PE)
XCross Linked Polyethelene (XLPE)