A Guide to High Resistance Grounding

Part 3 of 4: Resistance Grounding Basics

 

We are now offering as a free download Part Three of I-Gard’s four-part treatment of high-impedance ground protection which NEC permits under certain conditions in Article 250.36 (A) through (G) which should be carefully reviewed if any of this work is contemplated.

 

Part Three, Resistance Grounding Basics, defines high- and low-impedance grounding and discusses the advantages of going this route.

 

I-Gard’s Guide is conveniently organized into four parts. Over the last 2 months we sent Part 1 and Part 2, now here’s Part 3 and next month we’ll send Part 4.

 

• Part 1 covers Power System Grounding Basics
• Part 2 covers the Disadvantages of Delta Ungrounded Power Systems
• Part 3 covers High Resistance Grounding Basics
• Part 4 covers Sizing of the Neutral Grounding Resistor

 

 

Click here or on the image above to download Part 3 (84KB), but be advised that this download may take a few minutes to download depending on your internet connection speed. If you encounter a problem opening this file, be sure you have the latest version of Adobe Acrobat installed on your system (click here).