Tony all kidding aside two wire circuits have problems as well.
I totally agree. But the consequences of an open neutral on a two wire circuit are usually that it simply stops working, right? No harm to the connected loads, usually. Now what happens when you open the neutral on a MWBC? Or for that matter, the service?
If you don't want to use the type of circuit that delivers the electricity to your home, that is up to you.
For branch circuits, absoultely. I have no MWBC's and any place I live in won't. But the service is a factor not in my control, and:
If it's so terribly bad you should lobby to have all residential services redone with individual grounded conductors for each ungrounded conductor worldwide, after all they are MWC's.
What you all have lost sight of, and if you've read my other posts on this topic carefully, I have
no issues whatsoever with
service conductors and connections being set up as multiwire.
For cryin out loud, even I know that the laws of electricity make the single neutral concept a "fact of life."
Where I take issue and frankly am a bit offended is when:
But I will tell you I am tiring of your unsupported posts that multi wire circuits are inherently bad.
You have based your opinion on anecdotal evidence and not science.
..since in those other discussions I have readily conceded that in other lines of work and installations,
MWBC's are not necessarily a bad thing and can indeed offer benefits.But to make such proclamations when one has not had the same experiences and deal with the type of equipment I have for the last 20 years is downright rude. I would not presume to tell anyone here that how they wire High-bay lighting, process MCC's or a factory for that matter (all types of installations where I have no experience) is "unsupported" and "anecdotal."
Again, if one cares to carefully review the topics where we have had this discussion before, the main things I need to make clear here are:
One, my position is based on the use of MW
branch circuits
only in my line of work;Two, any details I have related are NOT unsupported or anecdotal, thay are the
facts in the situations I have encountered;
Three, I have in the past and again reiterate that since each of us works in different areas of electrical installations, that what works (or doesn't) for me will or won't work for others.
Tony, if it scares you so much then by all means don't use the method, for those of us who do use it and never have problems with it, we will continue to do so.
It's not a matter of scared, it's a matter of providing the best possible performance to my clients. And if it works for others, so be it. I have no arguement with it.
Your bad experiences can probably be attributed more to sorry workmanship of the installer(s)than to the wiring method itself.
Nope, have to disagree here. Out of all the cases (50+ and counting) I've dealt with, only two were workmanship issues. One was a poorly made connection, another was overloading due to sloppy phase placement.
I am no fan of multi wire circuits, being used just for the purpose of saving a few bucks, but that does not make them bad, or dangerous to install, they have their place, and i would use them without worry, the problems usually arise, when they are installed by someone that does not understand them.
LK, well said.
Obsaleet also made good points.
We all have our hot button issues, and I think we all know what mine is.