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Great River Energy builds and maintains transmission lines to meet or exceed safety requirements outlined in the National Electrical Safety Code and standards from the North American Electric Reliability Corporation. For guidelines about how to live, work and play safely near power lines, visit the safety around power lines section.
Every effort is made to ensure safety in construction, operation and maintenance of our transmission lines. Power lines are designed to withstand extreme weather conditions.
Great River Energy follows strict transmission line maintenance standards. We inspect lines six times per year by air and once by ground for:
We may need to visit the easement area for these inspections but visits will be minimal and landowners will be contacted prior to inspections or maintenance. However, in cases of emergency, we may be unable to contact you first.
Staying informed about EMF research efforts by objective, third-party sources is important to Great River Energy. We recognize that people who live or work near power lines may have questions about EMF, and we have employees who work near power lines and substations every day.
Electric and magnetic fields (EMF) are created by anything that conducts electricity, including transmission lines, household appliances and business equipment. These fields are strongest closest to their source; the farther away you are from the source the less EMF. EMF exposure from transmission lines, which are high in the air and outside the negotiated easement area, is minimal. Decades of scientific and medical research, reviewed by science organizations and government agencies, have found no cause/effect evidence of adverse health outcomes from EMF.