This article is a study about the noise present in the electric lines that strongly index when these are used as communication channel, a greater emphasis is made on the asynchronous (aperiodico) impulsive noise since this generates the greatest deterioration of the information in the communications By power line-PLC, it is necessary to determine its causes, generation conditions and the way to detect it given its stochastic behavior. It is proposed and developed a detection methodology, which was implemented in a test system in a home with a Blender in two stages, the first connection and the second disconnection, the results are favorable and this was demonstrated because it was found that there is presence of Burst type noise, as theoretically indicated in the classification of aperiodic noise.