Good People, The Wisconsin Supreme Court thinks that 'stray' voltage from the power grid is causing livestock problems. Note these links to this issue.
http://www.thonline.com/store/view.cfm?id=JiZNUz7AxXXkdICgz3Dz3D http://www.strayvoltage.org/stories/index.php3?Story=20010812_researchers. inc My (probably stupid) questions: 1. As most ground-loop current problems are caused when neutral is grounded at multiple points, why is the power utility blamed for an end-user wiring error ? 2. The result of 'stray' voltage would seem to be excessive ground-wire current. Why is a protection device not interrupting this fault current ? 3. The multiple instances of power distribution transformers should isolate, and therefore interrupt current leakage paths, because the customer's (secondary-side) neutral is grounded at a single point for each customer. So the only excessive (continuous) fault current should result >from the customer stringing extra grounds to the distribution transformer's case. So what is the leakage path and why is a sufficient potential developed that can cause this continuous fault current ? luck, Brian - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
