Looking for Some Good Resources on Bonding & Grounding

[second opinion]

There are two questions in the area of CSST:

1) bonding CSST to help eliminate perforations due to lightning strikes to or near to the property. The NEC has distanced itself from this situation. There is an ongoing discussion in committees about this issue.

2) bonding the CSST to comply with NEC 250.104 B, which states that gas piping is a type of "other metal piping" that must be bonded to the electrical system. Because gas piping often serves appliances like ranges and dryers that ALSO use electricity, the gas piping falls under the category of "likely to become energized," and therefore it falls under the bonding provision requirements of the article in question.

This is the only connection at this time between the NEC and CSST tubing manufacturers that sends you to the bonding requirements that are in the National fuel gas code 7.13.2 that has very explicit bonding requirements for bonding CSST.

250.104 (B) is the bonding requirements for schedule 40 and 80 steel pipe and sizing requirements are based on 250.122 where as standard yellow CSST is sized using 250.66
Informational Note No. 2: Additional information for gas piping systems can be found in Section 7.13 of NFPA 54-2009, National Fuel Gas Code.

[timebuilder]

This is the only connection at this time between the NEC and CSST tubing manufacturers that sends you to the bonding requirements that are in the National fuel gas code 7.13.2 that has very explicit bonding requirements for bonding CSST.
250.104 (B) is the bonding requirements for schedule 40 and 80 steel pipe and sizing requirements are based on 250.122 where as standard yellow CSST is sized using 250.66
Informational Note No. 2: Additional information for gas piping systems can be found in Section 7.13 of NFPA 54-2009, National Fuel Gas Code.

While those requirements do encompass schedule 40 and 80 steel pipe, the intent of the section is to cover ALL "other metal piping."

Which would include CSST.

[second opinion]

While those requirements do encompass schedule 40 and 80 steel pipe, the intent of the section is to cover ALL "other metal piping."

Which would include CSST.

When and if it ever includes CSST there will be a subsection with the bonding requirements that are different than standard steel pipe and will lead to a bonding conductor being dramatically undersized, or one not being used at all if the criteria of 250.104 (B) is used.

[jbroberts38]

Hi,
I have older system that is grounded to a 1" copper water line. Line passes through about 20' of clay, 2 feet below surface. Copper line no longer connects to water main, so it is essentially a large grounding rod run horizontally. Water table is such that the clay is at least moist if not wet. Has been in place for 50 years now.

Since it is now disconnected from the county water supply, is it providing enough of a ground for a residence? If not, I presume I need to add new thicker grounding rods 10 feet apart, etc?