Section 31.61.01.078 - TEST 6 - SIGNATURE TEST01.Purpose. This test is used to determine the contribution to stray current or voltage of individual pieces of equipment operating on the dairy. The test is best performed when there is minimal farm electrical activity.02.Conducting the Signature Test. During this test, individual pieces of major current drawing equipment shall be started and stopped. The effects of starting, operating, and stopping each piece of equipment shall be measured and recorded for a period of operation of at least fifteen (15) seconds. The person conducting the test shall identify and record the equipment being tested and record the specific times that the equipment was started and stopped. A digitizing data recorder with averaging capability shall be used to measure and record the required electrical data. These measurements shall be taken at the same locations at the dairy where measurements were taken for the purpose of the load box test and forty-eight (48) hour test. a. Voltage from primary neutral at the transformer to remote reference ground rod, Vp.b. Secondary neutral at the service panel serving the area of cow contact to remote reference ground voltage, Vs.c. Primary neutral voltage drop (Vps) from the location of connection for Vp to secondary neutral voltage at the location of the connection for Vs.d. Cow contact voltage (Vcc) or current (Icc) at the preselected point.03.Recording the Data. All of the data gathered by the recording equipment during the signature test, including transients shall be downloaded and retained with the records of the investigation. In addition, the steady state data shall be summarized in the investigation report. The recorded data shall be made available to the dairy producer or utility upon request. The location of all test point(s) shall be recorded on the form in Appendix 6. A plot of the voltage versus time may be substituted for the recording of measured values on Appendix 6.Idaho Admin. Code r. 31.61.01.078