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Technical information

Harmonized wire coding system

Classification for UL & CSA flexible cord

code       Description

XTW        Christmas Tree Thermoplastic

SPT-1      Service Parallel Thermoplastic-1/64" Insulation

SPT-2      Service Parallel Thermoplastic-2/64" Insulation

SPT-3      Service Parallel Thermoplastic-3/64" Insulation

SVT        Service Vacuum Thermoplastic

SVTO       SVT with Lil Resistant Jacket

SJT        Service Junior Thermoplastic

SJTW       SJT with Outdoor Resistant Jacket

SJTO       SJT with Oil Resistant Jacket

SJTOO      SJT with Oil Resistant Jacket and Insulation

SJTOW      SJT with Oil Resistant and Outdoor Resistant Jacket

ST         Service Thermoplastic

STW        ST with Outdoor Resistant Jacket

STO        ST with Oil Resistant Jacket

STOO       ST with Oil Resistant and Outdoor Resistant Jacket

STOW       ST with Oil Resistant and Outdoor Resistant Jacket

HPN        Heater Parallel Neoprene

Classification for JIS flexible cord

Symbol     Class

VFF        PVC Insulated Flat Cord

HVFF       Heat-resistant PVC Insulated Flat Cord

VCTF       PVC Insulated Cabtyre Round Cord

HVCTF      Heat-resistant PVC Insulated Cabtyre Round Cord

VCTFK      PVC Insulated Cabtyre Oval Cord

HVCTFK     Heat-resistant PVC Insulated Cabtyre Oval Cord

Symbols designated the following:

V:Polyvinyl Chloride

FF:Flat Type Flexible Cord

CTF:Cabtyre Type Cord

K:Oval

H:Heat-resistant insulation