This article was posted 11/21/2008 and is most likely outdated.

CSST Gas Pipe Bonding
 

 

Topic - Grounding vs Bonding
Subject - CSST Gas Pipe Bonding

November 21, 2008
This newsletter was sent to 30288 newsletter subscribers
Ask a Question |  Weekly Code Graphic |  Quizzes |  Free Stuff |  Instructors | Online Training |  Products | Seminars | Subscribe | Unsubscribe
[ image1 Post Comments | View Comments | Notify Me When Comments Are Added ] Web Page Version [Printer-Friendly]    

  

CSST Gas Pipe Bonding

 

ImageCSST - Corrugated Stainless Steel Tubing has been sold and installed In the US since 1988. As a result of legal actions stemming from the physical damage of lightning strikes manufacturers have agreed to new installation requirements regarding the bonding of CSST systems to the main grounding electrode of the structure were the CSST is installed.

 

Click here to review a study and some history of lightning strikes and CSST. At the current time Sangamon County is requiring that the gas line be bonded on non-metalic gas services at the entry into the home where a rigid nipple comes off the meter. A #6 solid is then required to be taken to the main grounding electrode of the structure. To my knowledge at this time no testing lab is listing a grounding clamp made to attach to the connector of the CSST. The gas and electric codes have not addressed this situation as of yet. – Michael Ashenfelter (Electrical/Mechanical Inspector)

 

Some additional information concerning the grounding clamps that might be used for bonding purposes provided by Donald Shields with UL: Currently, UL category KDER pg 172 in the 2007 White Book is the correct item for bonding of metallic piping. However, these products have only been evaluated for the connection to the round surface contours of pipe.


They have not been evaluated by UL  for any flat or shaped surfaces such as the HEX Fittings of a plumbing union or CSST connector. This could require the use and application of a short pipe nipple for the bonding connection to the CSST product or any surface that is not round.

Hopefully this information will help prevent any misuse of products listed by UL under the KDER category.
Click here to post a comment
[ View More Newsletters ] [ Send to a Friend ] [ Post Comments | View Comments | Notify Me When Comments Are Added ]

Copyright © 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)

Experiencing a Problem? Click Here
 
Comments

  • As I understand this issue, it is a requirement for the installation of the CSST product and not a electric code requirement. My experience with my local jurisdictions has been that they don't know what to do with this, because it is a manufacturers specification and should fall under the inspection of the gas line installation and not the electrician since requirements can vary by each manufacturer. My fear of liability puts me in the position of not doing anything to the CSST system until I receive specifications in writing for each project requiring me to bond to it.

    Jim Hurst
Reply to this comment
* Your Name:
   Your name will appear under your comments.

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

This newsletter is closed to new comments.

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