Meter has rigid conduit to disconnect

[SparkyWood]

Creating an effective path to ground

Creating an effective path to ground

Here PVC is the "preferred" method if there are no hubs involved as metallic conduit would require a bonding bushing.
The Code pretty much ignores the "parallel path" created by the metal nipple in this situation.

Keep in mind that your ultimate goal is to create an effective low resistance path to ground for the metallic parts of your service conductor raceway. This is not intended to be a part of your grounding electrode but instead provide adequate arc protection for the raceway. If non ferrous is required in your application, ie Florida outside, the replace the raceway with non ferrous. If it's not required or perferred then bond the load side of all your metallic service conductors, always. It doesn't take much and it shows that you care. Have a great day

 

[kwired]

SE cable is not a popular choice around here anymore, there was a lot of it ran years ago for service conductors, I can't recall any fires started because of the SE cable itself. Seen a lot of old cable that basically has no more sheath - still no fires. If you want to claim that moisture entering via that compromised sheath is a problem - why is it any more of a problem then condensation in a raceway?

Stray nail? PVC doesn't do much for that, neither does EMT for that matter, especially with power nailers.

 

[infinity]

Keep in mind that your ultimate goal is to create an effective low resistance path to ground for the metallic parts of your service conductor raceway. This is not intended to be a part of your grounding electrode but instead provide adequate arc protection for the raceway.

Did you mean that it really is to provide a low resistance path to the neutral/grounded conductor not to "ground" for all metallic parts/raceways on the line side of the service disconnect?

 

[DrSparks]

Did you mean that it really is to provide a low resistance path to the neutral/grounded conductor not to "ground" for all metallic parts/raceways on the line side of the service disconnect?

Often times when we say ground in electrical engineering or electric construction trade we mean the ground reference point not necessarily Earth ground

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[infinity]

Often times when we say ground in electrical engineering or electric construction trade we mean the ground reference point not necessarily Earth ground

There is no "ground" on the line side of the service disconnect who was my point about connecting to the neutral or grounded conductor.

 

[DrSparks]

There is no "ground" on the line side of the service disconnect who was my point about connecting to the neutral or grounded conductor.

There is a ground. The neutral terminal is grounded at the pole

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[infinity]

There is a ground. The neutral terminal is grounded at the pole

True but we're not talking about at the pole we're talking about at the meter enclosure which is fed by three conductors H-H-N, there is no "ground" to connect the metal parts and raceways to at the meter.

 

[DrSparks]

True but we're not talking about at the pole we're talking about at the meter enclosure which is fed by three conductors H-H-N, there is no "ground" to connect the metal parts and raceways to at the meter.

Yes there is. The neutral lug is bonded to the chassis in the meter socket enclosure. This effectively grounds the metal non-current carrying parts of the enclosure

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[electrofelon]

Although "ground" is common to use for "path back to the source that isnt dirt" in the field , many of us feel it is better to say "bond" on this forum due to the prevalence of the electricity goes to ground myth and not knowing the experience level of the person on the other end. We come across many who believe in the myth on this forum and we like to straighten it out.

 

[DrSparks]

Although "ground" is common to use for "path back to the source that isnt dirt" in the field , many of us feel it is better to say "bond" on this forum due to the prevalence of the electricity goes to ground myth and not knowing the experience level of the person on the other end. We come across many who believe in the myth on this forum and we like to straighten it out.

Your point has been duly noted

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[George Stolz]

That and definitions of grounding and bonding as they pertain to 250.92. Grounding isn't the pertinent term.

 

[DrSparks]

Find me memes that all metal parts are connected together to create one continuous electrical circuit. That circuit is then connected to Earth ground to create a zero potential reference point. That entire circuit as a whole can be and is often referred to as ground.

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[DrSparks]

Find me memes that all metal parts are connected together to create one continuous electrical circuit. That circuit is then connected to Earth ground to create a zero potential reference point. That entire circuit as a whole can be and is often referred to as ground.

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Sorry I've had a couple of beers. I'm using speech to text on my phone and somehow it picked up bonding as find me memes LOL

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[George Stolz]

I'd venture that a "zero potential reference point" is an abstract work of fiction of no value. Think about how a neutral contributes to voltage drop and NEV.

 

[DrSparks]

I'd venture that a "zero potential reference point" is an abstract work of fiction of no value. Think about how a neutral contributes to voltage drop and NEV.

Obviously nothing in real life electrical circuits conform to mathematical ideals. What is your point?

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[George Stolz]

What's your point in referencing "zero voltage reference"? It doesn't do anyone any good, does it?

 

[DrSparks]

What's your point in referencing "zero voltage reference"? It doesn't do anyone any good, does it?

I think if you backtrack through the discussion chain that will become self evident

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[George Stolz]

What's your point in referencing "zero voltage reference"? It doesn't do anyone any good, does it?

My point in castigating you for it is that it perpetuates the myth that getting connected to the earth has inherent value beyond those specified in 250.4.

 

[George Stolz]

I think if you backtrack through the discussion chain that will become self evident

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Not seeing it

 

[DrSparks]

My point in castigating you for it is that it perpetuates the myth that getting connected to the earth has inherent value beyond those specified in 250.4.

I don't know what myth you are referring to. I am perfectly well aware as I'm sure many other Professionals in the trade that the term ground does not necessarily mean a physical connection to Earth ground. Professional Engineers often use the term ground when they really mean chassis.

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