When using an in-line milliammeter or a clamp-around milliammeter to measure current between contact points and one of those points is the floor surface or earth, the metal plate must make a high-quality conductive contact with the floor surface or earth, using the procedures described in § 20:10:39:31.
S.D. Admin. R. 20:10:39:30
General Authority: SDCL 49-47-2.
Law Implemented: SDCL 49-47-2, 49-47-3.