VarietiesA variety of portable cords, differing in styles, lengths and thicknesses, exist in the marketplace. Common types include Type SJT, SVT, SEOW, SJ, SJOW, SO and SOW. Each has specific applications associated with it. A portable cord is usually made of
Thermoset, thermoplastic
Elastomer, or
Thermoplastic. Thermoset cords have heavy-duty-grade rubber jackets and are extremely sturdy. Thermoplastic elastomer cords have medium-duty-grade thermoplastic elastomer jackets and perform well in cold conditions. Thermoplastic cords have a light-duty plastic compound jacket and thus work for light-duty use.
Portable Cord Letter ConnotationsThe letters used to describe portable cords hold significance. Below are the meanings for each letter.
- S = 600 Volt Service Cord
- J = Junior Service - 300 Volt
- T = Thermoplastic
- E = Elastomer - thermoplastic that looks and feels like rubber
- O = Oil Resistant Outer Jacket
- OO = Oil Resistant Outer Jacket and Oil Resistant Insulation
- W = CSA Weather and Water Resistant (approved for indoor and outdoor use)