Grounding-Earthing
Grounding-Earthing
(OP)
I have got a doubt. This might be silly a question to some people. But this is irritating me from long time
-Why does two words "EARTH" and "GROUND" are used? Is there any technical difference between them?
Based on my knowledge, I felt that EARTH/EARTHING we use in AC. and Grounding is some thing use in DC (Static Electricity also) Please correct me if I'm wrong.
-Why does two words "EARTH" and "GROUND" are used? Is there any technical difference between them?
Based on my knowledge, I felt that EARTH/EARTHING we use in AC. and Grounding is some thing use in DC (Static Electricity also) Please correct me if I'm wrong.





RE: Grounding-Earthing
Ground-American
Earth-British
RE: Grounding-Earthing
Bill
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"Why not the best?"
Jimmy Carter
RE: Grounding-Earthing
IEC standards' earthing = ANSI/IEEE standard's grounding.
Rafiq Bulsara
http://www.srengineersct.com
RE: Grounding-Earthing
RE: Grounding-Earthing
RE: Grounding-Earthing
RE: Grounding-Earthing
Aren't civil engineers supposed to build roads and bridges? Was she employed to handle earth (aka 'dirt')?
BTW, in our languages, 'earth' and 'ground' have only one word: 'jord'. So we never have to care about THAT problem. We have quite a few other problems, though.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Grounding-Earthing
For those in the know, you always touch anything metal in the house with the back of the hand before venturing any further.
RE: Grounding-Earthing
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If we learn from our mistakes I'm getting a great education!
RE: Grounding-Earthing
Happy New Year! BTW.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Grounding-Earthing
RE: Grounding-Earthing
I can understand that there are a lot of electrical accidents. This picture (attached) shows a kettle for making tea that I found in a hotel in Kuala Lumpur.
The two wires are connected to mains and the heating takes place when current passes through water between the two disks at the bottom of the kettle.
Anyone opening the lid and using a spoon is in for a schock - sometimes lethal.
There was an attempt to reduce the risk, the lid once was interlocked so it couldn't be opened when cord was connected. But that interlock was long gone and this was really a 'kettle of death'. Staff could not understand what I was talking about. "We haven't had any deaths" was the answer. Not unexpected.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Grounding-Earthing
This is no different to what I grew up with in Australia, where most water kettles consisted of an element wrapped round a ceramic holderand attached in the same manner, I have also seen the type you showed in Australia.
If I remember correctely the plug fitted thru' the lid so it couldn't be opened with the lid closed, of course if the lid was damange or in many case removed completly, as you say a death trap to the unwary.
RE: Grounding-Earthing
In Australia we had an identical device until fairly recent times, and nobody ever died from them that I can ever recall.
The lid is cunningly hinged in such a way that it cannot be opened even slightly with the power plug inserted. This feature can be clearly seen in the photograph posted by Gunnar.
The most lethal electrical devices I can recall here in Australia, were small electric hand held drills, (usually of British manufacture) that had an all metal diecast body.
The internal wiring was not wonderful, especially after sometimes primitive home handyman repairs.
These handy little workshop tools dispatched more than a few people to their maker.
Three cheers for double insulation !