Proper ground for Csst

[David C. Macy]

Home is a 2007 build.

The main gas line is grounded to the service grounding electrode.

The home has CSST and the builder had it grounded to the gas line.

This is incorrect & a possible safety issue?

Is the correct installation of grounding the CSST is the the earth ground?
(Damm landscapers keep tearing up the cable)

Thanks for your responses.

[Larry D. Kage]

Looks okay from my house.

Now that I think about it more, it seems bonding near the black pipe gas line entry is what I read but here are a couple of links.

http://www.pddocs.com/csst/faq.aspx

http://www.nachi.org/forum/showthrea...sst+bonding%22

http://www.nachi.org/forum/showthrea...sst+bonding%22

[Jeffrey R. Pope]

The gas line is bonded to the grounding electrode and the CSST is bonded to the rigid gas line. Bonding and grounding are different.

CSST manufacturers have specific bonding requirements which, in some cases, include installation of additional grounding electrodes. The requirements vary depending on the Lightning Density Zone (LDZ) of your area.

[Pierre Belarge]

Just a note of caution...especially for HIs.

I am in the process of doing research for this topic. Just to let you know that CSST is not UL listed, it is CSA listed. CSST was originally trying to get a UL listing and they did not pass the evaluation there.

The change in the manufacturers installation instructions which happened just recently has some discrepcencies.
1. did they go back to the listing company to get the new instructions evaluated by the listing company....
2. There are discrepcencies with the method they provide for bonding the system.

3. most problems they have encountered are due to lightning/grounding issues not bonding issues. This system is not permitted to be grounded

I could go on, but I will wait until I have received more info back.

As a HI, I would defer all discussions or recommendations back to the building department or AHJ and pass on that responsibility/liability.

[Michael W. Gault]

Originally Posted by Pierre Belarge

Just a note of caution...especially for HIs.

I am in the process of doing research for this topic. Just to let you know that CSST is not UL listed, it is CSA listed. CSST was originally trying to get a UL listing and they did not pass the evaluation there.

The change in the manufacturers installation instructions which happened just recently has some discrepcencies.
1. did they go back to the listing company to get the new instructions evaluated by the listing company....
2. There are discrepcencies with the method they provide for bonding the system.

3. most problems they have encountered are due to lightning/grounding issues not bonding issues. This system is not permitted to be grounded

I could go on, but I will wait until I have received more info back.

As a HI, I would defer all discussions or recommendations back to the building department or AHJ and pass on that responsibility/liability.

Thanks Pierre....

[Joseph Hagarty, CMI]

http://www.gastite.com/include/langu.../TB2007_01.pdf

[Larry D. Kage]

Originally Posted by jhagarty

http://www.gastite.com/include/langu.../TB2007_01.pdf

I have a similar one around here somewhere for Pro-Flex CSST...but off to an inspection shortly.