SearchAsk us anythingarrow rightWhat is SJTW extension cord?SJTW means it's a hard service cable, which is weather resistant for outdoor use.Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERShop Recommended ProductsShop HomeX Recommended ProductsRELATED QUESTIONSWhat does SJTW mean on an extension cord?There is a hard service cord and a jacket that is weather resistant.What does SJTW for an extension cord mean?Abuse can be reported. Hard service cord is a term used for a jacket that is weather resistant. S is service, J is junior, T is thermoplastic/Vinyl and W-A is weather approved. You can find this information at http://www.uswireandcable.com/glossary.html. The man is Richard J.What does 16 3 mean on an extension cord?A 16 gauge extension cord less than 50 feet in length can be used to power an appliance. Is this true? The gauge wire rating and wire diameter are represented by the numbers 12 and 3.What does the gauge mean on an extension cord?The thicker the wire, the higher the cord's capacity to deliver power. The number of wires in the cord is listed with the gauge. 14-gauge wire is contained in a 14/3 cord.What is cable termination kit?There is a connection for cable to switchgear terminal. Is that correct? Depending on the cable configuration, it can be single core, 3 core or 3.5 core. It can be used in extreme hazardous atmosphere conditions.What is a garden room extension?We are often asked what a garden room is. A garden room extension is a semi-glazed building with a tiled roof as opposed to glass.