In order for a metal underground water pipe to be used as a grounding electrode, it shall be in direct contact with the earth for ______. a) 5 ft b) 10 ft or more c) less than 10 ft d) 20 ft or more ...

Almost every electrical system has multiple grounding electrodes; ground rods, water pipes, building steel, etc., with a grounding electrode conductor to each. A service with multiple grounding ...

A chemical ground electrode is a metal pipe containing electrolytic salts that slowly permeate the surrounding soil and increases its connectivity. Most of the original system was connected using bare ...