1. A method for detecting high impedance faults in electrical power lines comprising: using a plurality of high impedance fault detection means each having an output for independently detecting said high impedance fault, each of said fault detection means detecting said high impedance faults by analyzing data from said power lines collected for a predetermined period of time and providing at said output a signal based on said analyzed data indicative of the occurrence or non-occurrence of said high impedance faults; modifying each of said plurality of fault detection means to reduce said predetermined period of time by a factor of 1/n where n is an integer greater than one; and connecting a buffering system to said output of each of said fault detection means to obtain from said buffering system a signal indicative of the occurrence or non-occurrence of said high impedance fault that is based on said data collected for said predetermined period of time.