# How far apart do ground rods need to be?

**rods**at least 6 feet

**apart**[250.53(B)]. However, this spacing is a minimum — and

**far**from ideal. When using the typical 8-foot or 10-foot

**ground rod**, you get the best results by spacing the

**rods**at least 16 or 20 feet

**apart**, respectively.

Consequently, how many ground rods are required?

Code requires one ground rod and you prove 25 ohms, or **two ground rods** and you donâ€™t have to prove it. No. The requirement is **2 rods** spaced at least six feet apart unless you can prove one rod will turn less than 25 ohms resistance. That is all the requirement is.

Furthermore, what minimum distance should be there between two earthing electrodes? **Distance between two earthing** pit is 2 X Length of **earthing electrode**. If ground resistance is less than plate **earthing** (if hard rock) than Pipe **earthing** shall be used. Resistance **between two earthing** pit is negligible. **Earthing** of lighting protection **should** not mix with power system **earthing**.

Similarly, it is asked, what is the minimum depth for a ground rod?

8 feet

Do you need 2 grounding rods?

**Ground rod** spacing. Suppose **you** drive the first **ground rod** for a system. If it has a **ground** resistance of 25 ohms or more, 250.56 of the 2005 NEC requires **you** to drive a second **rod**. They simply plan on driving two **rods** because doing so will meet the requirements of 250.56, regardless of actual **ground** resistance.