GFI again

JPG · Post by **JPG** » Tue Aug 23, 2011 8:26 pm

Considering that noise is being created over on the 'yahoo' 'place', one only needs to consider the source of all that mis-information! I do not go there any more!

SDSSmith · Post by **SDSSmith** » Tue Aug 23, 2011 9:46 pm

JPG40504 wrote:Considering that noise is being created over on the 'yahoo' 'place', one only needs to consider the source of all that mis-information! I do not go there any more!

Sounds a little snobbish?!.............

notlem · Post by **notlem** » Wed Aug 24, 2011 12:35 am

I know older GFCI's were not good with motor loads and a good percentage of them were simply bad off the shelf. The NEC code body now believes modern products are up to the task and require them in garages.

I agree that replacement of the GFCI recept or breaker with new should be the first step, before blaming the machine. While at it a good check, by an electrician, of the service panel to make sure everything is tight and in good order, without a nest of rodents, is not a bad idea.

The suggestion that the ground prong should be cut off is simply rediculous and could have deadly results. A Shopsmith is not a double-insulated, plastic-cased machine. That prong is there to carry current to ground if something goes wrong. Without it, an innocent person could become the grounding path. Troubleshoot or pay a professional to fix it right. Condoning a bailing-wire and bubblegum fix by advising the disabling safety devices in a public forum is simply irresponsible. I'll stick with the level-headed folks at this forum; I see a genuine concern for safety and responsibility here.

Ed in Tampa · Post by **Ed in Tampa** » Wed Aug 24, 2011 12:54 am

JPG40504 wrote:Considering that noise is being created over on the 'yahoo' 'place', one only needs to consider the source of all that mis-information! I do not go there any more!

It may be snobish but I totally agree. I left there years ago it was my opinion it was a huge receptacle for misinformation. I went there today in regards to this thread and I still think it is a receptacle of misinformation.
I would not waste my time there.

JPG · Post by **JPG** » Wed Aug 24, 2011 10:26 am

Ed in Tampa wrote:It may be snobish but I totally agree. I left there years ago it was my opinion it was a huge receptacle for misinformation. I went there today in regards to this thread and I still think it is a receptacle of misinformation.
I would not waste my time there.

Thank You Ed. (Interesting that we be in the same camp!)*

Rob, it is not snobbish, but rather self preservation.

I get so frustrated(raises already elevated blood pressure) at the idiotic mis-information that occurs there. Any attempt to 'show the light' is met with a level of disdain that could only come from closed minds.

I am referring to attempts by others re the light as well as my own.

Also there is little wheat in all that chaffe. Time spent here is much more worthwhile!!!

* Maybe it has something to do with a three lettered corporate abbreviation!:rolleyes:

foxtrapper · Post by **foxtrapper** » Wed Aug 24, 2011 11:59 am

I've seen a lot of cheap GFI outlets and breakers fail. Many would just trip for no discernable reason. A few went up in flames.

I do rather like the concept of GFI, but the execution of the cheaper units leaves a whole lot to be desired.

wa2crk · Post by **wa2crk** » Wed Aug 24, 2011 1:29 pm

Charlese et all;
I spoke to my son last night as well as conducting some research on the internet about Hospital grade GFI devices. The hospital grade devices that I found seemed to refer to color. Most hospital grade ones are coded in red and there also other colors available for generator circuits. This seems to be for identification purposes only. One site did mention that there are some available with lower trip points where these may be required. No sites published any info as to engineering data for the different classifications but I will keep looking. My son has also heard of these devices and he is asking his commercial contacts if they have any info.
If I find anything I will post a link.
Bill V

paulmcohen · Post by **paulmcohen** » Wed Aug 24, 2011 5:25 pm

wa2crk wrote:mrblanche
The statement made on the other website the poster stated that SS published in the instructions that a GFI receptacle should not be used was incomplete. The Shopsmith publication stated that the WALL mounted GFI receptacle should be replaced with a standard outlet AND a GFI circuit breaker should be installed in the distribution panel. I think that what this would do is to move the sensing circuit of the GFI away from the affected outlet and lowers the RFI interference that may be causing the problem. Also the circuit breaker panel is a steel box that is grounded and will provide additional RF protection by shielding the GFI components.
Bill V

If I was going have an electrician come to my house to replace a breaker with a GFI breaker, he could just do the upgrade to 220 volts and end the issue.

OH! that is what I did. Love the PowerPro on 220 Volts BTW

charlese · Post by **charlese** » Wed Aug 24, 2011 10:04 pm

[quote="wa2crk"]Charlese et all]

Having done only an incomplete search I found Hubbell manufactures hospital and industrial GFCIs. http://www.hubbell-wiring.com/press/catalog/I.pdf

I don't know enough about this circuitry, does this description tell what we are looking for?
[align=left]• Four point grounding system provides redundant[/align]
[align=left]grounding for low resistance ground continuity in high[/align]
abuse areas"

JPG · Post by **JPG** » Wed Aug 24, 2011 11:07 pm

charlese wrote:Having done only an incomplete search I found Hubbell manufactures hospital and industrial GFCIs. http://www.hubbell-wiring.com/press/catalog/I.pdf

I don't know enough about this circuitry, does this description tell what we are looking for?
[align=left]• Four point grounding system provides redundant[/align]
[align=left]grounding for low resistance ground continuity in high[/align]
abuse areas"

That refers to the physical design of the grounding contacts. The plug ground 'pin' is contacted by four separate fingers.

There is no info there re gfci sensitivity.

They do not recommend use of gfci in life support systems. (gotta protect the patient - let the nurse be 'shocked'!);)