20 : 10 : 39 : 51 . Calculating the K factor for the load box test. The K factor is a calculated ratio of cow contact voltage divided by secondary neutral to reference voltage. The K factor should be less than one. If the K factor is greater than one then there is contribution to cow contact voltage from a source other than secondary neutral to reference voltage.

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

General Authority: SDCL 49-47-2.

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