BONDING GONE WILD - Take a look at this

[mtnelect]

This is a replay of a previous posting. How much bonding do you need ? Take a look at this attachment.

 

[infinity]

What is the source of that graphic?

 

[roger]

What is the source of that graphic?

It's outdated wherever it comes from. It's also saying the conductor to the rod can be from either the panel or the meter, not both.

 

[jaggedben]

Other that the weirdness of showing the ground rod connected to both the meter and the service panel, that's all very normal, nothing wild. Around here we usually we have to install two rods, not just one, but don't have a meter to bond around. YMMV. But it's about right.

 

[ptonsparky]

Other that the weirdness of showing the ground rod connected to both the meter and the service panel, that's all very normal, nothing wild. Around here we usually we have to install two rods, not just one, but don't have a meter to bond around. YMMV. But it's about right.

Other than meter and panel GEC to rod, pretty similar.

 

[mtnelect]

What is the source of that graphic?

 

[tom baker]

That graphic is very misleading as it shows a connection to the gas line for the water heater which is typically not required, And it’s hard to read in all caps
Mike Holts graphics are much better

 

[mtnelect]

That graphic is very misleading as it shows a connection to the gas line for the water heater which is typically not required, And it’s hard to read in all caps
Mike Holts graphics are much better

The article went on to say that Electrical Inspectors have a wide range of interpretation authority, in enforcement of the electrical code. This graphic was one of the many.

This is another interpretation.

 

[roger]

The title of the thread is correct, it's wild.

 

[jaggedben]

That graphic is very misleading as it shows a connection to the gas line for the water heater which is typically not required, And it’s hard to read in all caps
Mike Holts graphics are much better

Gas piping is required to be bonded and doing it at the water heater is a very typical way for it to be done around here. AHJs look for it.

 

[ModbusMan]

Gas piping is required to be bonded and doing it at the water heater is a very typical way for it to be done around here. AHJs look for it.

Same here, and having hot-cold-gas all within about 6-8 inches of each other with no obstructions (apart from maybe a tube going to the whole-house humidifier) makes it not just "typical," but very easy to get done and out of the way.

 

[brycenesbitt]

Gas piping is required to be bonded and doing it at the water heater is a very typical way for it to be done around here. AHJs look for it.

Same here. And it's even part of the annual rental housing inspection (the gas bonding)
One downside is the jumper from hot to cold to gas messes with the pipe insulation: especially if the bond is right at the top of the heater.

 

[infinity]

Gas piping is required to be bonded and doing it at the water heater is a very typical way for it to be done around here.

What code section requires the gas piping to bonded via an external bonding jumper?

 

[jaggedben]

What code section requires the gas piping to bonded via an external bonding jumper?

110.2

When both myself and the inspector would rather bond at the water heater than pull the range out of it's spot in the kitchen to prove its bonded.

 

[JohnE]

What code section requires the gas piping to bonded via an external bonding jumper?

None that I can find.

 

[ptonsparky]

None that I can find.

Does one prohibit the practice?

 

[infinity]

Does one prohibit the practice?

Nothing that I know of but I did at one time have an inspector ask for a bonding jumper to be removed on a service upgrade. He didn't like the black gas pipe on the HWH being externally bonded for some reason. I wrote a PI a few code cycles ago to clarify that it wasn't required but it got rejected.

 

[jaggedben]

Guys it's 250.104(B).

My last response was facetious because I've seen the argument that the appliance(s) can make the bond. But that assumes your gas appliances have electrical connections. I've worked in home in the last 5 years that only had pilot-light appliances.

 

[ModbusMan]

I've worked in home in the last 5 years that only had pilot-light appliances.

That's fine for burners, but what about oven control? Or do those use a piezo generator like water heaters?

 

[jaggedben]

That's fine for burners, but what about oven control? Or do those use a piezo generator like water heaters?

Thermocouple I presume? All I know is our last apartment had an old gas range with oven that didn't plug into the wall.

But you're missing the larger point. Who says the oven isn't electric while the remaining gas appliances are a piezo generator water heater and an old gravity furnace? You can't assume appliances bond the gas if you haven't looked at them.