Although electric actuators may be used anywhere a power source (electricity) is available, there are many applications where they are particularly well suited. For instance, in many remote installations, it may be impractical to run an air supply and to maintain it. Air lines that freeze up may clog and render the equipment inoperable or damage more delicate instruments. If only a few actuators are to be installed in an area, electric actuators offer a simple means of automation for these smaller systems