NEC 400

USA · 20 symbols

EElevator Cable
EThermoplastic Elastomer Insulation
EVElectrical Vehicle Cable
HHeater Cord
NINon-Integral, Used For Parallel Cords
OOil Resistant Sheath
OOOil Resistant Insulation And Sheath
PParallel Conductor Cord
SExtra Hard Usage Flexible Cord
SJHard Usage Flexible Cord
SVNot Hard Usage Flexible Cord
TFlat Tinsel Cord
TThermoplastic Insulation And Jacket
-1Insulation Thickness (Thinnest) / 0.030" (0.742 Mm)
-2Insulation Thickness (Normal) / 0.045" (1.143 Mm)
-3Insulation Thickness (Thickest) / 0.060" - 0.110" (1.524 – 2.794 Mm)
XTWParallel Cord For Decorative Lighting Strings
CXTWTwisted Pair Cord Or Single Conductor For Decorative Lighting Strings
WSuitable For Use In Wet Locations And Sunlight Resistant
WPortable Power Cable