This article was posted 02/13/2006 and is most likely outdated.

How to Protect Your House and It’s Contents from Lightning
 

 
Topic - Grounding and Bonding
Subject - How to Protect Your House and It’s Contents from Lightning

February 13, 2006 

| Ask a Question |  Code Graphic Code Quiz - All New! |  Free Stuff Instructors | Feedback
Online Training Products | Seminars | SubscribeUnsubscribe |
Change Email Address |
  Web Page Version [Printer-Friendly]    

How to Protect Your House and

It’s Contents from Lightning

 

This guide is intended to provide useful information about the proper specification and application of surge protectors, to protect houses and their contents from lightning and other electrical surges. The guide is written for electricians, electronics technicians and engineers, electrical inspectors, building designers, and others with some technical background, and the need to understand lightning protection.

 

Click here to download: This IEEE Guide for Surge Protection of Equipment Connected to AC Power and Communication Circuits

 

Mike Holt Comment: This document is an excellent, but I have a problem with the statement

“High surge currents impinging on a power distribution system having a relatively high grounding resistance can create enormous ground potential rises, resulting in damage. Therefore, an evaluation of the service entrance grounding system at the time of the SPD installation is very important [2.3.1]”.

 

Grounding. The contact resistance of the electrical system to the earth (ground resistance) plays an insignificant role in reducing ground potential rise (GPR) of surge protection devices at a residence. It’s unfortunate that all surge protection writings make the same statement, because this gives the impression that ground resistance of the grounding electrode system serves a purpose in surge protection, that it doesn’t.

 

If you feel that the contact resistance of the electrical system to the earth does reduce ground potential rise, please send me a copy of a study that supports your position.

 

Bonding. Now I do agree that a low-impedance path from the surge protectors to the source, such as the equipment grounding conductor, or the neutral conductor at service equipment is critical in reducing ground potential rise. But this really has to do with bonding, not grounding!

[ View More Newsletters ] [ Please Reply With Your Comments | View Comments ]

Grounding versus Bonding Library - DVDs
Grounding and bonding problems are at epidemic levels. Surveys repeatedly show a high percentage of power quality problems are due to poor grounding and bonding. Electrical theory has been applied to this difficult to understand Article, making it easier for students to grasp the concepts of grounding and bonding. Additionally, Mike has color coded the graphics so you can easily differentiate between grounding and bonding. For a limited time, you can order the Entire Grounding versus Bonding Library including the textbook, 2 videos, MP3 Audio CD and the Online Program for this great price. You save over $200!

Product Code: 05GBDVD
Price:
$224.00 each

 
[ Please Reply With Your Comments | View Comments ] [ View More Newsletters ]

F o r w a r d   t h i s   N e w s l e t t e r   t o   a   F r i e n d !
Do you have a friend, relative, or colleague who you think would be interested in receiving this free newsletter? If so, we encourage you to forward this message along to them. If you received this email from someone else, and wish to receive your own free issues of our newsletter, sign up today!

C o n t a c t    I n f o r m a t i o n
   
 

Copyright © 2002, 2003, 2004, 2005 Mike Holt Enterprises, Inc. All rights reserved.
This article is protected by United States copyright and other intellectual property laws and may not be
displayed or published on the internet without the prior written permission of Mike Holt Enterprises, Inc.

http://www.MikeHolt.com     1-888-NEC-CODE (1-888-632-2633)

Comments

Get notified when new comments are posted here
* Your Email:
 
        
 
Add Your Comments to this Newsletter
* Your Name:
   Your name will appear under your comments.

* Your Email:
   Your email address is not displayed.
* Comments:

Email Notification Options:
Notify me when a reply is posted to this comment
Notify me whenever a comment is posted to this newsletter