VOLEX, 17742 10 B1, Mains Power Cord, 18 AWG, Shielded, w/o Foil & Braid, NEMA 5-15P, IEC 60320 C13, 6.5 ft, 2 m, Black

power chords extension cords and multiple strand or multiple conductor cables have a jacketing and this jacketing has a temperature rating on the outside printed on them in this video we can look at some of these numbers and we'll explain what these numbers mean in terms of this temperature rating basically it is a safety feature so you might want to pay attention first terminology what's jacketing jacketing is usually made of PVC looks like this usually there is some paper or something on the inside that wraps the that wraps the conductors that are inside an extension cord or a power cord not all of them look like this so terminology wise this outside stuff the black one here is jacketing to fill power cord or extension cord as you can see the Indy if the conductors are braided like so or twisted around to fill the gap there is usually in this case this is just paper filling it sometim