Portable cord is flexible, moveable electrical cable that consists of one or more insulated conductors enclosed in a jacket. It is typically used for temporary power connections. Portable cord can be exposed to constant flexing and harsh environmental conditions, including temperature extremes, oil, chemicals, and abrasive materials. There are multiple types of portable cord, as designated by industry standard letter codes that describe various attributes (temperature range, wire size) and ratings (voltage) and help ensure the best cord is selected for an application. Portable cord is commonly used for temporary wiring projects in industrial and commercial facilities, such as supplying power to portable tools, appliances, and equipment, as well as small motors and associated machinery. It does not include plugs on the ends of the cord.