Where exposed, grounding electrode conductors sized 8 AWG and smaller must be installed in rigid metal conduit, intermediate metal conduit, rigid nonmetallic conduit, or electrical metallic tubing.

Grounding electrode conductor (GEC) installation. The balance of Part III of Art. 250, beginning with 250.62, contains requirements for the grounding electrode conductor (GEC). Section 250.64(B) was ...

Rod and pipe electrodes make up about 90 percent of all grounding electrode system installations. Generally, this is comprised of an 8ft to 10ft stake driven into the earth that extends up and ...

This installation used a grounding method developed in the 1940s by Underwriters Laboratories engineer Herbert G. Ufer; the method bears his name. Ufer grounding consists of attaching the grounding ...