The CSST type gas line shown has not been bonded properly, that is only ELECTRICAL TAPE to cover the exposed piping.
The gas company and master electrician state that this is correct and does not need to be bonded. I downloaded the directions to do my own research into it again.
Here is what I located in the directions for this brand of piping used.
The TracPipe® CounterStrike® gas piping system shall be bonded in accordance
with these instructions and local codes.
In the event of a conflict between these
instructions and local codes, the local codes
shall control. The piping system is not to be
used as a grounding conductor or electrode
for an electrical system.
Then in a large box this stated in large bold letters on page 55:
Failure to properly bond the TracPipe®
CounterStrike® flexible gas piping system
in accordance with NEC/NFPA 70 may
lead to damage to the CSST system in the
event of a lightning strike.
• A lightning induced fire in the building
could lead to serious personal injury or
significant property damage.
• Lightning is a powerful and unpredictable
natural force, and it has the capacity of
damaging gas piping systems due to arcing between the gas piping system and
other metallic systems in the building.
• If the building to be piped is in a high
lightning flash density area or a region
with a high number of thunderstorm days
per year, consideration should be given to
utilizing the Lightning Risk Assessment
method given in Annex L of NFPA 780 for
a determination of the need for a lightning
So even if the local code does not require bonding it is still a safety defect, I will keep putting this into my reports as a safety issue and in the event that the gas line gets damaged, the electrician and/or gas company can take responsibility for the damage and or deaths. Manufacturer has no liability because they put the warning to inform the installer that it needs to be bonded.
National Fuel Gas Code – 2018
The NFGC requires bonding to help reduce possible electric
shock hazard and potential tubing damage. The specific
requirements in the 2018 NFGC are contained in Section
7.12 as follows:
7.12 Electrical Bonding and Grounding.3
7.12.1 Pipe and Tubing other than CSST. Each aboveground
portion of a gas piping system other than CSST that is likely to
become energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping other than
CSST shall be considered to be bonded when it is connected to appliances that are connected to the appliance grounding
conductor of the circuit supplying that appliance.
7.12.2 * CSST. CSST gas piping systems and gas piping systems containing one or more segments of CSST, shall be electrically continuous and bonded to the electrical service grounding electrode system or where provided, lightning protection grounding electrode system.
184.108.40.206 The bonding jumper shall connect to a metallic pipe, pipe fitting, or CSST fitting.
220.127.116.11 The bonding jumper shall not be smaller than 6 AWG
copper wire or equivalent.
18.104.22.168 The length of the jumper between the connection to the gas piping system and the grounding electrode system shall not exceed 75 ft (22 m). Any additional grounding electrodes installed to meet this requirement shall be bonded to the electrical service grounding electrode system or where provided, lightning protection grounding electrode system.
22.214.171.124 Bonding connections shall be in accordance with NFPA 70, National Electrical Code®.
126.96.36.199 Devices used for the bonding connection shall be listed for the application in accordance with UL 467, Grounding and Bonding Equipment.
7.12.3 Arc Resistant Jacketed CSST. CSST listed with an arc
resistant jacket or coating system in accordance with ANSI LC
1/CSA 6.26, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST), shall be electrically continuous and bonded to an effective ground fault current path. Where any CSST component of a piping system does not have an arc resistant jacket or coating system, the bonding requirements of 7.12.2 shall apply.
Arc resistant jacketed CSST shall be considered to be bonded
when it is connected to appliances that are connected to the
appliance grounding conductor of the circuit supply that appliance.
7.12.4* Prohibited Use. Gas piping shall not be used as a
grounding conductor or electrode.
7.12.5* Lighting Protection System. Where a lightning
protection system is installed, the bonding of the gas piping shall be in accordance with NFPA 780, Standard for the Installation of Lightning Protection Systems, 2008.
Here is a link to the insallation manual: