S.D. Admin. R. 20:10:39:40
The primary profile test requires concurrent measurement of the ground electrode resistance and current at all primary system ground points within three quarters of a mile on either side of all primary service points serving the dairy, or to the end of the line if less than three quarters of a mile. Alternatively, the voltage between a remote reference electrode and the primary ground point being tested may be measured.
The primary profile test is conducted starting at one end of the distribution system and working toward the other along the main primary distribution system.
If the dairy is served by a dedicated tap of less than one-half mile in length from a distribution line, the neutral-to-earth voltage is measured at each primary ground along the tap and along the distribution line to a distance of three quarters of a mile in each direction from the point of the tap. If the dairy is served by a dedicated tap that extends more than one-half mile from the distribution line, the neutral-to-earth voltage is measured at each primary grounding electrode along the tap and along the distribution line to a distance of one-half mile in each direction from the point of the tap.
S.D. Admin. R. 20:10:39:40
General Authority: SDCL 49-47-2.
Law Implemented: SDCL 49-47-2, 49-47-3.