Objectionable Current - Water main

[winnie]

If everything is plastic, you shouldn't be required to bond. The risk of current in the water itself is IMHO negligible in a house.

Having a dielectric union and not using the underground pipe as an electrode is a good idea. To the extent that we should have grounding electrodes, we shouldn't be confusing them with plumbing.

I don't see how GFCI or AFCI tech changes the need (or lack of need) for grounding. You want to provide a well controlled path for low current, high voltage upsets ('static', HV leakage, etc.)

To ground or not to ground was seriously debated at the start of electrification. Soares Book on Grounding and Bonding had some history on this subject.

Jonathan

 

[electrofelon]

Since everything is on plastic, why should we still be required to bond ?

If everything is plastic there would be nothing to bond.

 

[Rjryan]

This might help to explain.

This might help to explain.

Excellent article: The Hazardous Multigrounded Neutral Distribution System And Dangerous Stray Currents
Explains a lot, worth the read.

 

[mtnelect]

So this seems to be similar to the Stray Voltage that Mike holt was talking about in his Stray Voltage video where he references he was on the Stray voltage foundation.

"Stray Voltage" should be changed to "Stray Current"
"It has been shown previously that it is the current that is dangerous to the human animal and to the animal kingdom. Voltage is only the pressure that pushes the current. Voltage does not burn the body. It is the current that burns the body, sets the heart into fibrillation, halting the pumping action of the heart, resulting in death of both".

 

[mtnelect]

Excellent article: The Hazardous Multigrounded Neutral Distribution System And Dangerous Stray Currents
Explains a lot, worth the read.

Glad to see that some more" Electrical Professionals" are taking a look !

 

[electrofelon]

I find the Article to be biased and alarmist and it over emphasizes the negatives and under emphasizes the positives of an mgn system.

 

[mtnelect]

I find the Article to be biased and alarmist and it over emphasizes the negatives and under emphasizes the positives of an mgn system.

Thank you for taking the time to read the article and give your opinion(s).

 

[mtnelect]

I find the Article to be biased and alarmist and it over emphasizes the negatives and under emphasizes the positives of an mgn system.

I am not sure what you are talking about ... could you be more specific ?

 

[mtnelect]

I am not sure what you are talking about ... could you be more specific ?

Please disregard ... I copied the wrong link.

 

[hbiss]

I have attached a picture of my Electrical Service for clarification.

No need to post a picture of what I have installed hundreds of times. The neutral serves to support the drop cable. So what? Do you propose a separate insulated neutral and a separate messenger?

-Hal

 

[mtnelect]

No need to post a picture of what I have installed hundreds of times. The neutral serves to support the drop cable. So what? Do you propose a separate insulated neutral and a separate messenger?

-Hal

Yes, among other things.

 

[Gene B]

If both the secondary and primary neutral are earthed (grounded), then they will be at (approximately) the same potential. What is the advantage of having them only connected through earth, rather than solidly bonded together?

Bonding imposes primary neutral-to-earth voltage on every metal device via the EGCs. This is a well known problem for farms, e.g. animals drinking heated water. Utilities sometimes install a neutral isolator which keeps primary and secondary neutral seperate as long as the voltage difference is low.