South Dakota Administrative Rules
Title 20 - PUBLIC SAFETY
Article 20:10 - PUBLIC UTILITIES COMMISSION
Chapter 20:10:39 - Stray electrical current and voltage remediation rules
Section 20:10:39:58 - Determination of any contributions to stray current or voltage for three-phase dairies

Universal Citation: SD Admin Rules 20:10:39:58
Current through Register Vol. 50, page 114, March 25, 2024

The utility contribution to cow contact voltage or cow contact current for dairies with three-phase balanced load service is determined by directly using the results of the load box test results for step 1 and step 2 as specified in § 20:10:39:50.

The cow contact voltage measured during step 1 of the load box with the load box "off" and the dairy "on" will be the total cow contact voltage. The cow contact voltage measured during step 2 of the load box test with the load box "off" and the dairy "off" is the contribution to cow contact voltage from the utility or Vcc utility. The contribution to cow contact voltage by the dairy is the difference between cow contact voltage and cow contact voltage from the utility. The formula is: Vcc dairy = Vcc - Vcc utility.

General Authority: SDCL 49-47-2.

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

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