Grounding circuit

[deewanapiyush]

hello can any body remove my dout that what does ground stand for ( i think it is for earthing) . i want to ask that it is realy necesary to ground the circuit where it is shown in the circuit

[mixos]

If it is a simple low voltage circuit you haven't to ground it to real earth, just connect all grounds together. If it is a power circuit that is powered from main power (110-220V) you have to do it for protection puproses.

[MP]

As Mixos has said, you would only use earth ground or case ground when the circuit requires it. Some circuits depend upon a floating voltage and will not work when the common of the circuit is tied to earth ground. If you would like to post a particular circuit or link, everyone could comment further.

MP

[hotwaterwizard]

Check out this Link for more info.
http://www.ee.upenn.edu/rca/instruments/misctutorials/Ground/grd.html

[quantum]

I heard that grounding the wire to your faucet is good idea for grounding.

No matter where the grounding symbols are on the schematic, you connect all of them together, then ground them? :o

[MP]

I heard that grounding the wire to your faucet is good idea for grounding.

There is a catch to this, though...years ago all houses had metal pipes all connected together and going into the ground. Many newer homes in some places have plastic water pipes between the faucet and the main pipes. I have seen some with metal braiding on the flexible pipe, but the nut is plastic. Obviously, these will not connect you to the ground. If in doubt, there is nothing that beats a good old rod in the ground to be sure.

MP

[hotwaterwizard]

This is good for a crystal radio and other radio equipment but ib little gadgets it is not needed. Ac Equipment like Satalite Recievers Cable Boxes Telephone Systems Ect. Need to be Earth Grounded.

Check out this Link
http://www.ee.upenn.edu/rca/instruments/misctutorials/Ground/grd.html

[MP]

Exactly my point. You see the term "ground" used very loosely. I work quite a bit in the meteorological field and ground is earth ground. Otherwise, you are referring to a "common".

MP