You never put overcurrent protection in a grounded conductor unless it opens all conductors of the circuit simultaneously. Place you may see that is with corner grounded delta systems.
. Here in India neutral ground fault is common and in one such case, the POCO return ground fault current damaged unprotected neutral conductor due to presence of neutral ground fault in a building.
In a MGN distribution system there kind of is no such thing as a neutral ground fault. You do get stray currents sometimes from outside your premises on the grounded conductor though, they are typically low enough current that OCPD's wouldn't respond if there were OCPD's.I think you people in the states do relatively flawless electrial works.
It would for anything that NEC is applied to. I don't know what he is experiencing or how systems are different than they are here, but we only see severe neutral currents from outside a structure in some rather extreme and unlikely incidents here in the US. Current on a water pipe bonded to more than one structure is what is a common thing, but is typically only considered a problem when someone opens the current path for the most part.
what am I negating from what I said in post 24? Requirement to simultaneously open all conductors is basis for what I said in post 24.
Whether the overcurrent will operate at any magnitude of fault is out of the question. It's whether it is required or not
I concur with our friend from India. It may not be a familiar installation practice in the US.
A lot of those who participate in these industry have spent decades doing the same thing over and over losing their wide perspective.
They can no longer see the forest from the trees.
They do find a feeling of relief that 40 years of doing the same thing earns them their bragging rights. . . I don't see anything wrong with it.
If that's what make them happy I'm all for it.
Gives me a feeling of beatitude from seeing a bunch of happy people.
Same here.
I am having a little trouble understanding your post - what you are saying. If you mean whats in red in regards to putting an OCPD in the neutral conductor, I also dont see anything wrong with it, I just dont think it is necessary.
I am having a little trouble understanding your post - what you are saying. If you mean whats in red in regards to putting an OCPD in the neutral conductor, I also dont see anything wrong with it, I just dont think it is necessary.
……….
Slip-ups often lead to grave misapprehension. Blaring mistakes -- when often exhibited is contagious. It saps all rational exchange of ideas that might otherwise be a source of wisdom.
The antecedent of the phrase: “I don't see anything wrong with it” is the other phrase before it. . . hence ante meaning before:
They do find a feeling of relief that 40 years. . . .” [this is the antecedent]
As an example that demonstrate this part of speech -- gives a meaning to a pronoun that refers back to the subject.
Bob arrived late because the rain held him up. The pronoun him refers to and takes its meaning from Bob.
The phrase in question: “I don't see anything wrong with it” refers to the 40 years of experience that was gained, and therefore earned him the credit that enables him to brag about it.
For those who possess some grounding in linguistics-- this is called anaphora. The expression whose interpretation depends on another phrase that is usually the word or phrase before it.
You are flummoxed which prompted you to ask a legit question which therefore deserved an answer.
To be honest, I really hate to sound like a ridiculous pedagogue. . . but sometimes the need arise.
Now, if we go back to the crux of the issue-- whether or not having a disconnect is necessary. . . I don't think it is in your position or anyone else to make that decision. NEC has it spelled out that it is allowed.
You can have your opinion and certainly you are entitled to it.
