Installing Ground Electrode in Rocky Soil - RWS200 - RWCC - AWS310-SITE - AWS310 - FOC201 - AWS430 - RME111

Grounding and Lightning Protection in Vaisala Outdoor Installations Technical Reference

Document code
M211786EN
Revision
B
Language
English (United States)
Product
RWS200
RWCC
AWS310-SITE
AWS310
FOC201
AWS430
RME111
Document type
User guide
Figure 1. Grounding Cable in Rocky Soil

Use horizontal ground electrodes when there is some soil on rock surface. Spread the electrodes around the mast.

  • Route the electrodes from the grounding connector at the mast base to the most desirable direction away from the mast.
  • Use two or three electrodes. Using more electrodes lowers the impedance.
  • Spread the ground electrodes on the rock surface and bury in patches of soil or fix with clamps to the rock.
  • Cover a wide area of the surface to make a low-impedance capacitive ground electrode.