Transelec » Electromagnetic Fields

What are electromagnetic fields?

Electric fields are invisible forces generated by the presence of electric charges while magnetic fields are generated by the presence of moving electric charges. Electromagnetic fields involve the presence of both factors.

Why do electromagnetic fields develop?

All elements connected to an electric power supply produce electromagnetic fields. For example, the earth naturally generates a static magnetic field and by moving electrically charged matter. In addition, electromagnetic fields are present throughout the electric wiring of a house, in home appliances and, evidently, in power lines.

What does the World Health Organization think of electromagnetic fields?

According to the WHO, there are no conclusive studies linking electromagnetic fields to adverse effects on human health and other living beings. In this sense, electromagnetic fields have been ranked in the same class as coffee, i.e. their effects could be beneficial, damaging or neutral, but their effect on human health is yet to be determined.

What is Transelec’s position regarding electromagnetic fields?

Biomedical research carried out by panels of scientists and government organizations over the past 30 years years regarding the effects of electromagnetic fields has reached the conclusion that the electromagnetic fields produced by electric transmission lines are not harmful to people, plants or animals.

Based on this information - analyzed by international bodies - together with internal studies performed by the company, Transelec believes that the levels of electromagnetic fields produced by its transmission lines do not affect the health of people, plants or animals.

Can electromagnetic fields produced by the line be eliminated by burying it?

No. If the line is buried, only the electric fields will be partially blocked by the soil. If there is a flow of electricity, magnetic fields will exist, therefore, it cannot be eliminated.

If I stay away from power lines, do I avoid being exposed to the electromagnetic fields they generate?

Yes. The further away you stay from a power line, the lower the exposure and presence of electromagnetic fields. In addition, in order to ensure safety, the layout of power lines includes a safety buffer strip and an easement, which further reduces exposure.

Do electromagnetic fields affect people who suffer from heart disease?

No. There are no conclusive studies to show that electromagnetic fields could have adverse effects on the health of human beings or other living things.

Can electromagnetic fields affect people with pacemakers?

The areas where high electromagnetic fields are present are restricted to the general public, and may be entered exclusively by Transelec personnel. Consequently, people with pacemakers should not be affected.