This article was posted 03/21/2007 and is most likely outdated.

IDEAL's Newsletter Part 2
 

 
Subject - IDEAL's Newsletter Part 2

March 21, 2007  

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IDEAL’s Newsletter Part 2

The newsletter sent last night (http://www.mikeholt.com/newsletters.php?action=display&letterID=339) about the confusing text on grounding by Ideal generated quite a few comments and I felt it would be responsible for me to put all of this in perspective. Anybody who has had any association with Ideal, its staff, and its products knows that Ideal Industries, Inc. is just a first class organization in every way.

The purpose of the newsletter was to demonstrate that information posted on the Internet relating to Grounding and Bonding by even the finest organization can be in error. We all need to be aware that not everything that is written is correct.

I personally have made the same false comments at one point in my career, and I’m sorry to all that I taught wrong…

Article 250 in the NEC has seen major changes the past two Code cycles and you can expect more of the same for 2008 (clarify up the intent of grounding versus bonding). In the 2008 NEC grounding is really ‘earthing’ and bonding will be more on the line of ‘connecting,’ but we’ll discuss more on this when the 2008 NEC is available.

Please review some of the following comments, before you ‘judge’ Ideal:

  • Mike, as a young man (many years ago) I remember wiring the old two wire receptacles. The neutral was referred to as the "ground wire" by many good or at least productive electricians. Linemen often called the neutral the ground. I've heard guys say “I can't believe that ground wire shocked me" I think this confusion in terms has carried on down through the years and still causes problems.
    Fred Madden March 21 2007, 11:32 am EST
  • I didn’t see a problem with any of Ideals statements and anyone who would like to discuss them point by point I’m all ears. No quick 1 sentence answers with any supporting theory to back it up.
    sherman March 21 2007, 10:27 am EST
  • I bet there is a meeting in progress at Ideal Industries right now where the agenda addresses development of a new approval process for marketing materials. I would say its likely those documents will now have to pass through the engineering department before they are released to the public (I hope so anyway)! A company like Ideal, in my estimate, will take this very seriously. After all, this kind of stuff can really tarnish an image that took years of hard work to create!
    Good article Mike!
    Nat Abram March 21 2007, 10:13 am EST
  • While Ideal is not entirely correct in their wording, I believe they are not aiming at industry people with their comments. If one wishes to rile up about this, why not aim at the NEC and their own confusion with the terms bonding/grounding.
    Steve March 21 2007, 10:01 am EST
  • Mike, I am not impressed with this article, I see it as a sort of "face off" between yourself and leading industries. I think it, a little in dignified of yourself to present your case in such a format. I have always enjoyed your news letters and such; however this article....man I thought you were better than this. The infamous "MIKE HOLT" takes on IDEAL Industries, there is your headline, now let’s move on.
    Steven Dobbins March 21 2007, 9:10 am EST
  • I currently work for a distributor of low voltage equipment for fire and security equipment etc. We have access to documentation of products from over 400 vendors if I remember correctly. Nearly every piece of documentation I see that is a “cut sheet” or sales flyer is either missing pertinent information or has errors in the information. Generally the “installation sheet” is more accurate, but not always.
    In my opinion, the marketing people don’t know enough about the product to describe it properly or catch their own mistakes. I think some of the technical people either don’t have time to look over the marketing people’s work, or don’t read English well enough to proof read the work.
    Dale H March 21 2007, 7:09 am EST
  • If this article is any indication of what is to come, it does not look like a series of myth-busting comments. Instead, it looks like a diatribe against a manufacturer's incorrect usage of terminology. Might I suggest a personal correspondence with such manufacturers to educate them rather than post such rubbish?
    Richard Kurzawa, P.E. March 21 2007, 7:08 am EST
  • Mike, those of us trained in electron flow 'know' current is never trying to reach ground, but always trying to reach the source.
    Engineers whose training only touch on electricity as a requirement, and all those trained formally as 'electrical engineers' seem to have their curriculum based on semiconductor theory. Those fundamentals started them on 'hole flow' and they carry it forward into every discipline. So, from their perspective, current IS trying to get to ground to complete the path.
    I'm taking an excerpt from your comments to send to my English teacher son-in-law. Hopefully he'll post it and use it to convince his students to really learn and study the language so they can express themselves and be understood in writing.
    Thanks for the comments. Good article.
    John 'Z-man' Zoll March 21 2007, 6:54 am EST
  • I believe that much of the confusion about grounding has to do with a lack of a clear yet comprehensive presentation of the subject. I have yet to find a text that covers grounding adequately.
    Jan Harris P.E. March 21 2007, 6:43 am EST
  • This grounding myth is out there big time. A few weeks ago when I was in Home Depot, I looked in the following wiring books: Better Homes and Gardening, Black and Decker, Stanley, and the Home Depot book and there was one other which name I cannot remember. These books were either directly stating or simply implying that the ground fault current was just going into the earth or using the earth as the proper fault current return path. Siemens had this myth for many years on their free “quickSTEP” online training courses. Thanks to Mike Holt that was fixed. Siemens still has the myth on their older version called the “STEP 2000” training program which can be downloaded from their website. I suspect that the biggest culprit in spreading this myth is the group of people who produced the two fine print notes (which stand alone at the beginning of Article 250) in four consecutive editions of the National Electrical Code. These are the 1981, 1984, 1987, and the 1990 editions. That's twelve straight years of hazard causing information produced by the people who are supposed to be doing just the opposite. I have been told that they are getting better though. I hope so.
    Ralph Greene March 21 2007, 6:40 am EST
  • I believe the EE's at Ideal know better than this and were never consulted by the "Sales" Dept. before they wrote this article to bolster the need for their products. Happens every day.
    Stan March 21 2007, 6:37 am EST
  • Mike, You 100% correct; and ALL manufacturers (and some contractors and inspectors) are guilty of perpetuating many different myths. Just remember, catalogs and advertising come from a Marketing Department with limited to no knowledge. These people are also writing for the general public, and are prone to exaggeration and mis-statements by the nature of their work. It's too bad that someone with some knowledge doesn't catch and correct these errors. I can't wait to see what myth you bust next (I've got plenty of ideas.)
    Gary March 21 2007, 6:18 am EST
  • This all comes back to misusing the term ground for the return line, which may or may not be electrically connected, well or poorly, to the ground beneath our feet. Rather than fix the vocabulary, we re-write the dictionary to accommodate our bad usage. I think this is how the Supreme Court cooks up some of its creative rulings.
    Matt March 21 2007, 6:17 am EST
  • Mike, it just staggers me that the editors for a company like this have not picked up on the technical discrepancy. It is not like this is a new revelation in grounding theory. I have come across this many times in the recent past. When reading about SPDs, we see the same misunderstandings.
    As I teach my students, it is not easy to impress upon them the correct methods, as they want to know who is really correct. Take this email that you have sent out...do you think my students want to believe little ole me over Ideal... it is frustrating.
    Pierre March 21 2007, 6:07 am EST
  • I am stunned that a company that does make some very good testing equipment can be so confused in there marketing and/or documentation.
    Inspector March 20 2007, 5:42 pm EST
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Comments
  • You need to ignore the personal comments. You do an excellent service to the industry

    Dan Kane
    Reply to this comment

  • Maybe its time to look at the grid and go to a 1phase 4 wire system and a 3phase five wire system.

    mike
    Reply to this comment

  • "The purpose of the newsletter was to demonstrate that information posted on the Internet relating to Grounding and Bonding by even the finest organization can be in error. We all need to be aware that not everything that is written is correct."

    Mike - thank you for the 'myuth-busting' newsletter; I did not think for a moment you were 'going after' Ideal. As you mentioned today, there are a lotl of errors being spread by even the best of company's and it is important to bring this to everyone's attention. As another poster indicated - we as inspectors/instructors try to provide correct information, but who are we [compared to Ideal] when we try to set the record straight? Folks see literature printed by Ideal and accept it as correct.

    Good article Mike, thank you and keep up the good work.

    dana1029
    Reply to this comment

  • Mike In Canada once we changed terminology to bonding and grounding a lot of other things started to change with it but the idea that fault current goes to ground is still very prevalent and in the case of continuous metalic water mains it is also accurate. Since continuous metallic water mains parallel the neutral in the utility distributions there is often continuous current on the grounds and under fault conditions there may be a lot of current flow. Sure the current is returning to the source but sometimes it is on the water pipe and the neutral. I did find the IDEAL article full of inaccuracies but even Electrical Engineers believe a lot of what is in their flyer. Thanks for the myth busting. It helps me stay on top of these things.

    Mike Shea
    Reply to this comment

  • Mike I read your artical, with great interest. This is one of the most confusing area's of code, I think this is a common misconception. Although some of your comments seemed harsh, if it caused anyone to research a litlle, then it was a great thing. Sometime we get complacent and need to ask a few questions. I find myself after working a 10 hour day, then to the office for at least 4 hours of bid's and invoicing, I have little motivation to learn unless a button is pushed. So Thanks Tony

    Tony Mixon Contractor
    Reply to this comment

  • Over the years I have always believed that Marketing/Sales should consult engineers before printing material and that engineers should never write instruction manuals because they assume that everyone understands the process so they leave out a few steps. Ideal should doe some inhouce consulting prior to releasing information that could result in errors or hurting someone.

    Curtis Leary
    Reply to this comment

  • Not only is it important for the best of people and the best of organizations to correct themselves and to allow themselves to be corrected, it is also very important for the public to be aware that top notch people and top notch organizations sometimes make serious mistakes especially if the mistakes adversely effect the public. A good reason why we need to be aware of the origin of these mistakes is so we will not automatically assume that just because the top notch people are producing information the information must always be correct.

    Ralph Greene
    Reply to this comment

  • you grilled the guy. Tell me mr. genius ego ever word something wrong?

    pete
    Reply to this comment

  • Mike,

    Unfortunately, a small portion of another article written for an online magazine by Ideal's marketing manager may have been used for the Ideal technical pathway flyer. That segment was a one liner that had only one flaw in the entire heady writing about grounding techniques. That flaw was misconstrued and further garnished possibly by a 'ghost writer' who got it wrong.

    I agree that Ideal Industries is top notch and anything can happen in such a large organization as I have also experienced many times in the electronics and electrical fields.

    Ben Jacks
    Reply to this comment

  • Mike, It was a GOOD article so dont listen to the detractors. My father was a genius of an electrician and he started our business when Thomas Edison was still around. Forty or more years ago I heard him say that the "grounding" concept was industry created and mostly crap. It served no purpose in "normalizing" current flow. I wish he was still around to read your work. I look forward to the rest of the story. Apparently some "experts" in the field have never heard of the concept of difference in ground potential. Sorry, "earth potential". Too old to change some ways I suppose.

    Norman
    Reply to this comment

  • Since we are myth bushing answer this question? 1000 amp feeder, three runs of four 500 KCMIL. What size ground wire? Some engineers are use #3 copper installed in each conduit . The engineer on this job I am doing now use 2\0 copper. Which is correct?

    Doyle Moye
    Reply to this comment

  • Never let it be said that Mike Holt is afraid of posting opposing view points. I have always been impressed with Mike's willingness to listen to anyones opinion wheather he is in agreement or not. Thanks Mike, for not only sharing your knowledge but also sharing all the pro and con comments, that allow us to look at the subject and form our own objective opinions. I don't always agree with you Mike but you certainly have my respect.

    Dan Prater
    Reply to this comment

  • I have really enjoyed this discussion. This goes to show you how much mis-understanding there is out there concerning grounding. I have taught courses on grounding for 30 years and I am always amazed at the confusion even among fellow engineers. When I am confused I always fall back on what an old professor told me in class.

    "electrical theory is based on mathematics which is an exact science, we can always prove or disapprove any theory by this,ohms law is one of those theories that have been proven". I still find that to be good advice, terminology may change but the science remains the same.

    This is basics ladies and gentlemen no matter what the terminology is.

    P.S. I have to admit, however I do enjoy the "verbal combat".

    Jim

    Jim Yancey-NCDOI ENGINEERING
    Reply to this comment

  • Mike, Thanks for you spot-on email. It is interesting to see the turmoil that is generated when some truth is directly injected into a falsely constructed structure. This all begs the question of where does the fault current go on the space shuttle if there is a direct short on one of thier circuits (while in orbit, of course).

    Harold Lunt
    Reply to this comment

  • In my early years as an apprentice electrician we were taught to always connect the neutrals and grounds first as a precaution against possible shock,since the return path was then established. I think the term "grounded conductor" was always confusing to a beginning student. Engineers in the same company or group, will not always agree about grounding fundamentals or other electrical theory. revisionists abound in all subjects today. Watts were replaced by volt amperes or VA for instance. Polarity has theoreticaly changed directions since then. A generator was a real mystery then. No one could really explain why electricity was created, or where it came from, by an armature rotating in an electrical field created by coils of wire. So, no one has to apologize for what was being taught then. In time we will change our minds about all this again I am sure. I think of Mother Earth as a "sponge" ready to receive if offered, any excess amperage or voltage in a circuit, not as an "attractor "of same. By grounding and bonding, we dump unwanted energy into the earth until a fuse blows, or breaker opens, not all into exposed metal parts of a system. What are your thoughts?

    Bill Hart
    Reply to this comment

  • Regardless of way that the discrepancies were pointed out by Mike Holt's staff, I appreciate the correction of the Marketing material. The best part of this is that it helps to point out that some information in general should be subject to skepticism. Just because it's well printed in multiple colors, doesn't mean that it is accurate. The problem isn't limited to Ideal Industries, a company that makes fine tools, there are others as well. I appreciate Mike's staff pointing out the discrepancies. I printed the material and gave it to my staff, which is the real point, being a little skeptical and digging further improves general knowledge and helps to prevent accidents.

    Glen Stewart
    Reply to this comment

  • Mike You certinly got a lot of people firedup. But I have to aggree with you most electricians don't know the pourpose of grounding. I work in the machine tool industry and for years manfacturers required a ground rod be driven at the maghine so the machine would be at Zero potential. They had you test to make sure it was 25 Ohms or less. No one could ever explane to me how I could get Zero potential throu 25 ohms. Love your news letter keep up the good work.

    Rich Carey
    Reply to this comment

  • There are ohmmeters one can buy that will actually measure the resistance of soil, dirt,earth-whatever from a given point to a point within the meters range. You'll usually find the the resistance is quite high. To this, you can sometimes meaningfully add some capacitive reactance and relatively little if any measurable inductive reactance. The point being any current through the earth faces a current square times resistance. Even a low current faces a heavy haul in returning to the grounded leg of the transformer. Forget that earth circuit back to the grounded leg in most industrial and domestic installations. In a word: you'll have a darn high voltage drop. Another point, there is usually current through the neutral which is bonded to ground. Nevertheless, I can't reasonably say I have a parallel circuit back to the transformer. BUT-and here is where everyone going to jump my case-there usually is a small current flowing through the ground, because technically, it is a parallel circuit. In fact, the ground may be legally used as a current carrier under certain limited circumstances.

    Bob Gisborn
    Reply to this comment

  • Mike, I have been a frequent viewer of your site and think you and this site have helped many electricians along the way. what we need here is another BASICS IN GROUNDING. I either read some of your articles or inadverently antendenned some of your seminaries. anyway i am no longer in Chicago IBEW 134 but i just recieved a Master Electrician Cert. here in Missouri for what ever it's worth. Jeff City I hear has a problem issueing Masters if its out of city (Miller County, Eldon,Mo.) lets all work to correct this problem. By the way. IF YOU PASS THE TEST YOU ARE INTITLED TO THE LICENSE.) THE HELL WITH POLITICS A ND POLITICIANS. Guess maybe I'm in the wrong county, state HELL, MATT BLUNTT A'INT MY FRIEND. To: Fellow Electricians (A,B &C) & Linemane AMREN-UE Godbless & STAYSAFE) HI WALT

    K.Baranowski(A)
    Reply to this comment

  • Thank you

    K.Baranowski(A)
    Reply to this comment

  • We are all in this together as fellow tradesmen and have had learning curves that heve bettered our experience as we develop methods and terminology. Mike is brave enough to point out and admit we all have our corrections from past and present electrical concepts to share. We certainly work in such a complex technology that is not an easy one to describe on paper. (I.e. the NEC)

    Ben Jacks
    Reply to this comment

  • Ideal may not be entirely correct in it's use of industry terms, but neither is Mike Holt Enterprises. Someone in Mike Holt Enterprises should have called Ideal before spouting off. That would have been the ethical thing to do.

    Eric David
    Reply to this comment


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