Mich. Admin. Code R. 460.2702 - Measuring animal contact voltage

Rule 2.

(1) A utility shall respond to a request for investigation and work with the complainant to conduct an initial investigation to determine stray voltage levels. If resolution is not met, the complainant may request further investigation as provided for in this rule.

(2) Upon conclusion of (1) and upon request of the complainant, a utility shall conduct an investigation of each complainant inquiry or complaint concerning animal contact current or voltage, commonly referred to as stray voltage. The following shall apply:

(a) The level of animal contact current shall be determined from measurements of animal contact voltage using Ohm's Law. The voltage measurement shall be made between 2 points, which an animal can simultaneously contact and under which animal contact voltage is most likely to occur. When measuring from the floor or earth, a single metallic plate with an area of 12 to 16 square inches shall be used to simulate the foot of the animal. One lead of the measuring instrument shall be connected to the plate, which shall be placed on the floor or earth where an animal may stand. The other lead of the measuring instrument shall be connected to a conductive object that an animal could reasonably contact while 1 of its feet is at the location of the plate. For all measurements of animal contact voltage a shunt resistor shall be used to simulate the resistance of the animal. A suitable material, such as a medical grade electrode contact gel, shall be used to simulate real conditions and maintain conductivity to the floor or earth for the duration of the testing period.

(b) An approved method for determining the utility contribution to the animal contact current is contained in R 460.2707, Protocol to Evaluate Utility Contribution to Animal Contact Current.

Notes

Mich. Admin. Code R. 460.2702

2007 AACS