20 : 10 : 39 : 42 . The secondary neutral voltage drop test. The secondary neutral voltage drop test determines the impact of each secondary service on the neutral-to-earth and cow contact voltages on the dairy under controlled conditions.

Source: 42 SDR 174 , effective June 21, 2016 .

General Authority: SDCL 49-47-2.

Law Implemented: SDCL 49-47-2 , 49-47-3 .