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 20:10:39:01 - Definitions

Current through Register Vol. 51, page 10, July 15, 2024
Words and phrases defined in SDCL chapter 49-47 have the
				  same meaning when used in this chapter. Terms used in this chapter mean:
(1) "Ampere," a unit of measure of electrical
				current;
(2) "Cow contact current"
				or "Ice," the alternating current, 60 Hertz, root mean square, steady-state
				current measured through the shunt resistor;
(3) "Cow contact voltage" or "Vcc," the
				alternating current, 60 Hertz, root mean square, steady-state voltage measured
				across the shunt resistor;
(4)
				"Current," an electrical parameter that is the flow or amount of electricity
				past any single point in a conductor or conductive element per unit of
				time;
(5) "Ground," a term used in
				electrical science meaning the point of lowest potential for an electrical
				system;
(6) "Ishunt," the
				measurement of current across the shunt resistor;
(7) "Milliampere" or "mA," one one-thousandth
				of an ampere;
(8) "Ohm," the
				standard unit of electrical resistance;
(9) "Open circuit voltage" or "Voc," the
				difference of electrical potential between two terminals when disconnected from
				any circuit;
(10) "Primary neutral
				to reference voltage" or "Vp," the voltage that exists between the primary
				grounding conductor point of an electrical system's utility transformer and a
				remote reference electrode;
(11)
				"Primary system/' a term that describes the high voltage utility electrical
				system, including the generation, transmission, and distribution systems. It
				also refers to the high voltage side of a distribution transformer;
(12) "Remote reference electrode," a
				temporary point of measurement established by correctly installing a ground
				rod;
(13) "Resistance," an
				electrical quantity that quantifies a physical material's ability to conduct or
				not conduct electricity;
(14) "Root
				mean square," a mathematical conversion used to equate alternating and direct
				currents and voltages on similar terms;
(15) "Secondary neutral to reference voltage"
				or "Vs," the voltage that exists between the secondary grounding
				electrode/grounding conductor point of an electrical system's service entrance
				panel and a remote reference electrode;
(16) "Secondary system," the part of the
				electrical system on the customer's side of both the meter and
				transformer;
(17) "Service
				provider," any person, company, or other legal entity providing stray current
				or voltage testing, consulting, measurements, analysis services, construction,
				or hardware;
(18) "Shunt resistor"
				or "Rshunt," a physical resistor or combination of resistors used to simulate a
				dairy cow during the measurement of cow contact voltage or current. A shunt
				resistor must be 500 Ohms, plus or minus two percent;
(19) "Source resistance" or "Rsource," the
				portion of resistance in the circuit, other than the resistance of the shunt
				resistor;
(20) "Transient
				deviation," a non-steady-state increase or spike in voltage or current. For the
				purpose of identifying and reporting transient deviations in cow contact
				voltage or cow contact current, a transient deviation occurs when the recorded
				maximum Vcc or Ice in a recording interval exceeds 200 percent of the
				steady-state Vcc or Ice recorded during the same recording interval;
(21) "Voltage," the electrical quantity that
				describes the push or potential that electrical energy needs to flow in a
				circuit;
(22) "Voltage drop/' the
				difference in voltages when a current passes through a resistance or impedance
				in a closed loop circuit and a voltage drop is produced across that resistance
				or impedance; and
(23) "Vshunt,"
				the measurement of voltage across the shunt resistor.
General Authority:
SDCL
					 49-47-2.
Law Implemented:
SDCL
					 49-47-2,
					 49-47-3.