gas & water line bonding

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The NEC says gas appliances are bonded by their service. This I am told means a gas stove with 12-2 wg would bond the gas line. Does this also bond the all of the gas lines including those for the gas water heater etc. If a #12 can bond all gas lines why then do we need to bond the water lines with #6. I call out all gas and water lines as needing bonding with #6 am I over reacting?
Thanks Don Hawley Hawley Home Inspections LLC
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Unless you have CSST plain black gas pipe is bonded by the appliances connected to it. Water pipe systems require bonding.
 
This might fit here>


250.104 Bonding of Piping Systems and Exposed Structural
Metal.(B)
Other Metal Piping. If installed in or attached to a build‐
ing or structure, a metal piping system(s), including gas piping,
that is likely to become energized shall be bonded to any of the
following:
(1) Equipment grounding conductor for the circuit that is
likely to energize the piping system
(2) Service equipment enclosure
(3) Grounded conductor at the service
(4) Grounding electrode conductor, if of sufficient size
(5) One or more grounding electrodes used, if the ground‐
ing electrode conductor or bonding jumper to the
grounding electrode is of sufficient size
The bonding conductor(s) or jumper(s) shall be sized in
accordance with Table 250.122, and equipment grounding
conductors shall be sized in accordance with Table 250.122
using the rating of the circuit that is likely to energize the
piping system(s). The points of attachment of the bonding
jumper(s) shall be accessible
.


~RJ~
 
The several times I have bonded gas systems have been because of CSST. What I did was run a copper conductor from a pipe clamp attached to the customer's side of the gas meter to the EGC bus in the panel.

The idea is to prevent nearby lightning strikes from causing a voltage gradient across, and thereby a current through the CSST. Apparently, they already consider the appliance end of the gas line to be grounded.
 
I've been using #8 for all bonding, did the gas guys up the ante' here?

~RJ~

Fuel Gas Code

310.1.1CSST.
Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system. The bonding jumper shall connect to a metallic pipe or fitting between the point of delivery and the first downstream CSST fitting. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent. Gas piping systems that contain one or more segments of CSST shall be bonded in accordance with this section.
 
#6 as stated however, some manufacturers state to use 250.66 which would be the same size as your grounding electrode conductor.
 
I believe some CSST manufacturers require a #6 bonding jumper. There is some debate about whose responsibility it is to install this.

Fuel Gas Code

310.1.1CSST.
Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system. The bonding jumper shall connect to a metallic pipe or fitting between the point of delivery and the first downstream CSST fitting. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent. Gas piping systems that contain one or more segments of CSST shall be bonded in accordance with this section.

I didn't study nor do I have any licensing that involves fuel gas code - responsibility is to those using items covered by fuel gas code:happyyes:

NEC doesn't even mention CSST gas piping that I am aware of.
 
I didn't study nor do I have any licensing that involves fuel gas code - responsibility is to those using items covered by fuel gas code:happyyes:

NEC doesn't even mention CSST gas piping that I am aware of.

Sounds like you need some schoolin’ then.:D

So, who is responsible for resi smoke alarms in your world then? No smokes in the NEC either....
 
Sounds like you need some schoolin’ then.:D

So, who is responsible for resi smoke alarms in your world then? No smokes in the NEC either....
Actually EI inpsects them(but only to NEC, which doesn't cover where to place them) if they present. Otherwise there is nobody making us put them in here. New homes, nobody ever disagrees with installing them, existing/remodels - we add on to existing if there otherwise often they don't get put in.
 
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