To reduce the chance of electrical shock and fires, service panels need to be grounded. Proper grounding directs unwanted electrical current from the home into the ground. Installing a grounding rod ...
Answer: Drive it at an angle not exceeding 45 degrees from vertical. If rock is still encountered at an angle up to 45 degrees, the rod can be laid horizontally in a trench at least 30 inches deep.
The use of structural metal as a grounding electrode is an issue that has been revised during several recent Code cycles. The 2011 NEC has once again revisited the rule explaining when a structural ...
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