This site is principally about AC electric and magnetic fields, at 50 or 60 Hz, produced by power systems operating at those frequencies. But some power systems contain small sections operating with Direct Current, DC, and these produce DC or static fields. In this section of the site we gather together information on static fields:
- Sources of static fields
- the earth's fields, fields from lines and cables, and how they compare
- The effects of static fields
- effects on the body at higher and lower fields, and effects on compasses
- The expert view on static fields
- Exposure limits for static fields
See also:
- our tutorial for more on the difference between AC and DC