stillirnin

I just get confused at times ,when& where&how each is used.Can someone please give me a brief explanation and example of each. Thanx in advance

electricista

I am too lazy to explain but try this article. Also do a search from that page for
Grounding vs Bonding Part 2 of 12.

You will have to go to the second page of the search results . You will see 12 articles on this subject

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Alice

"I complained because I had no shoes until I saw a man who had no feet."

Chris Kennedy

That means she has no idea.

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Bulldozers and Dirt

redbeard43

grounding is from the electrode to the can
bonding is from the neutral to the ground
ungrounded conductor is the hot
grounded conductor is the neutral
bond bushings go to the ground bar to bond the conduit coming from underground or flex, sometimes even the ground wire protection conduit

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You have the ring, and I see that your schwarz is as big as mine.May the schwartz be with you!

s.kelly

If you really want to look at the subject, probably the best book on this imho is Soares book on grounding. Fairly easy to read and not fall asleep, but full of lots of good info!

lectricboy

A grounded conductor isn't always a neutral, ie; three phase corner ground.


http://ecatalog.squared.com/pubs/Ele...2700DB0202.pdf

electricista

I do have an idea.

Grounding is when you have your shoes off and you are standing on wet earth.

Bonding is when you have 2 people and their lips are touching.

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Alice

"I complained because I had no shoes until I saw a man who had no feet."

Magnettica

Maybe start here...

250.4 General Requirements for Grounding and Bonding.

The following general requirements identify what grounding
and bonding of electrical systems are required to accomplish.
The prescriptive methods contained in Article 250 shall be
followed to comply with the performance requirements of this
section.

(A) Grounded Systems.

(1) Electrical System Grounding. Electrical systems that
are grounded shall be connected to earth in a manner that
will limit the voltage imposed by lightning, line surges, or
unintentional contact with higher-voltage lines and that will
stabilize the voltage to earth during normal operation.

(2) Grounding of Electrical Equipment. Non–current-
carrying conductive materials enclosing electrical conduc-
tors or equipment, or forming part of such equipment, shall
be connected to earth so as to limit the voltage to ground on
these materials.

(3) Bonding of Electrical Equipment. Non–current-carrying
conductive materials enclosing electrical conductors or equip-
ment, or forming part of such equipment, shall be connected
together and to the electrical supply source in a manner that
establishes an effective ground-fault current path.

(4) Bonding of Electrically Conductive Materials and
Other Equipment. Electrically conductive materials that
are likely to become energized shall be connected together
and to the electrical supply source in a manner that estab-
lishes an effective ground-fault current path.

(5) Effective Ground-Fault Current Path. Electrical
equipment and wiring and other electrically conductive ma-
terial likely to become energized shall be installed in a
manner that creates a permanent, low-impedance circuit
facilitating the operation of the overcurrent device or
ground detector for high-impedance grounded systems. It
shall be capable of safely carrying the maximum ground-
fault current likely to be imposed on it from any point on
the wiring system where a ground fault may occur to the
electrical supply source. The earth shall not be considered
as an effective ground-fault current path.

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eddy current

Exactly

3phase

I loved that response from electrista also.

william1978

user5941

When two people fall to the ground with their lips touching it is called Earthing