Definitions of Cable Types Back to the top
SVT—Thermoplastic insulated vacuum cleaner cord, with or without 3rd conductor
for grounding purposes; 300V. (PVC)
SJT—Junior hard service, thermoplastic insulated conductors and jacket. 300V. (PVC)
SJTW—Same as SJT except outdoor rated. (PVC)
SJTO—Same as SJT but oil resistant outer jacket. (PVC)
SJTOW—Same as SJTO except outdoor rated. (PVC)
ST—Hard service cord with all thermoplastic construction, 600V. (PVC)
STW—Same as ST except outdoor rated. (PVC)
STO—Same as ST but with oil resistant outer jacket. (PVC)
STOW—Same as STO except outdoor rated. (PVC)
SPT-1—Parallel jacketed thermoplastic cable, 300V. With or without third conductor for grounding. (PVC)
SPT-2—Same as SPT-1 but heavier construction. (PVC)
SPT-3—Same as SPT-2 but heavier construction. (PVC)
SJE—Hard service cord, thermoplastic elastomer insulated and jacketed, 300V. (TPE)
SJEW—Same as SJE except outdoor rated. (TPE)
SJEO—Same as SJE but with oil resistant jacket. (TPE)
SJEOW—Same as SJE except outdoor rated. (TPE)
SJEOO—Same as SJE but conductor insulation and jacket BOTH oil resistant. (TPE)
SJEOOW—Same as SJEOO except outdoor rated. (TPE)
SE—Extra hard service cord, thermoplastic elastomer conductor insulation and jacket, 600V. (TPE)
SEW—Same as SE except outdoor rated. (TPE)
SEO—Same as SE but with oil resistant jacket. (TPE)
SEOW—Same as SEO except outdoor rated. (TPE)
SEOO—Same as SE but with oil resistant conductor insulation and jacket. (TPE)
SEOOW—Same as SEOO except outdoor rated. (TPE)
S—Extra hard service cord, thermoset-insulated conductors and thermoset jacket, 600V.
SO—Same as S but with oil resistant jacket. (thermoset)
SOW—Same as S except outdoor rated. (thermoset)
SOO—Same as S but both conductor insulation and jacket are oil resistant. (thermoset)
SOOW—Same as SOO except outdoor rated. (thermoset)
SJ—Hard service cord, thermoset insulated conductors and thermoset jacket, 300V. (thermoset)
SJO—Same as SJ but with oil resistant jacket. (thermoset)
SJOW—Same as SJO except outdoor rated. (thermoset)
SJOO—Same as SJ but both conductor insulation and jacket are oil resistant. (thermoset)
SJOOW—Same as SJOO except outdoor rated. (thermoset)
NOTICE: Definitions of cable designations are derived from UL’s designation scheme as defined in the National Electrical Code (NEC)—NFPA-7
PVC and Rubber Jacketed Cable Guide Back to the top
National Electric Code guides for use of Flexible Cords and Cables includes PVC and Rubber Types (excerpt from Article 400)
Use on "pendants" (hanging fixtures such as lights), connection of portable lamps or appliances; wiring of cranes and hoists; connection of stationary equipment to facilitate frequent interchange. (This cable may not be used as a substitute for fixed wiring of a structure where it is run through walls, ceilings or attached to building surfaces.)
PVC jacketed cable:
SJT: Trade Name: "Junior Hard Service." Outer covering is thermoplastic; insulation is thermoplastic or thermoset. For pendant or portable use, damp locations, for hard usage.
SVT: Trade Name: "Vacuum Cleaner Cord." Outer covering is thermoplastic; insulation is thermoset or thermoplastic. For pendant or portable use, damp locations, not for hard usage.
Rubber jacketed cable:
SO: Trade Name: "Hard Service Cord." Outer covering is oil resistant thermoset; insulation is thermoset. For pendant or portable use, damp locations, for extra hard usage. Permitted for use on theater stages, in garages, etc.
SEO: Trade Name: "Hard Service Cord." Outer covering is thermoplastic elastomer; insulation is thermoplastic elastomer. For pendant or portable use, damp locations, for extra hard usage.
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