what is the difference between electrical bonding and electrical grounding?

Question

Please give example if possible. Thank you.

Answer 1

*Bonding :
is simply a matter of taking all of the electrical and metallic masses in a facility and connecting them with conductors, bringing them to the same electrical potential. The primary reason for bonding is personnel safety, so someone touching two pieces of equipment at the same time does not receive a shock by becoming the path of equalization if they happen to be at different potentials.

For the same reason bonding protects people, it protects equipment, by reducing current flow on power and data conductors between pieces of equipment at different potentials.

*Grounding :
is a matter of bringing the bonded equipment mass to the potential of the surface of the earth which it occupies. Again, the primary reason is personnel safety, and the secondary reason is equipment protection. When it comes to grounding, we need to consider two types of grounding: low-impedance grounding of structures, and single-point ground potential referencing for services and equipment.
[A structure is anything which is likely to be struck by lightning. Multiple low-impedance paths to the grounding

system transfer lightning energy off of the structure and into ground as quickly as possible. Since lightning is very high frequency, low-impedance, not just low-resistance, paths are the key. The higher the impedance the lightning energy "sees", the greater the voltage increase. The higher the voltages, the more likely the energy will arc or take unwanted paths to ground.
Therefore, it is important to provide multiple paths with good geometry directly to grounding electrodes within the grounding system.]

Answer 2

Electrical bonding and the Earthing system of the mains supply are two different systems. Bonding refers to the fact that in a building served with electricity it is normal for safety reasons to connect all metal objects such as pipes together to the mains earth to form an equipotential zone. This is done in the UK because many buildings are supplied with a single phase supply cable where the neutral and earth conductors are combined. Close to the electricity meter this conductor is divided into two, the earth terminal and the wire going to the neutral busbar in the consumer unit. In the event of a break in a neutral connection this earth terminal provided by the supply company will be at a potential (relative to the true earth) which is the same as the live wire (phase wire) coming to the home.

Here is the situation which the authorities wish to avoid.

If a person was to touch the metal (earthed casing) of an electrical device during the above fault condition and be in contact with a metal object connected to a true earth then they would get an electric shock.

Because all metal objects (such as water pipes) are connected together, all the metal objects in the building will be at the same potential, hence it will not be possible to get a shock by touching two 'earthed' objects at once.

Bonding takes on an important and particular technical significance when it comes to swimming pools and fountains. For these pools and fountains, any conductor, (for example this means bits of metal etc., not the wire conductor wire to a pump,) over a certain size must be bonded to assure that all conductors are equipotential and do not provide a hazardous conductive path. Buried in the ground, and sometimes even having a small leak, a pool can be a better ground than the electric panel ground. With all the conducting elements bonded, it is less likely that electric current will find a path through a swimmer.

Answer 3

Difference Between Earthing And Bonding

Answer 4

electric bonding and the Earthing equipment of the mains supply are 2 diverse systems. Bonding refers back to the reality that during a construction served with electricity that's ordinary for defense motives to connect all steel products which includes pipes at the same time to the mains earth to style an equipotential zone. that's finished in the united kingdom with the aid of fact many homes are presented with a single section supply cable the place the impartial and earth conductors are mixed. close to to the electrical powered energy meter this conductor is divided into 2, the earth terminal and the twine going to the impartial busbar in the patron unit. in the form of a wreck in a impartial connection this earth terminal presented with the aid of the provision corporation would be at a skill (relative to the actual earth) this is an identical with the aid of fact the stay twine (section twine) coming to the domicile. right here is the situation which the government want to evade. If a individual grew to become into to the touch the steel (earthed casing) of an electric gadget during the above fault condition and be in touch with a steel merchandise related to a real earth then they might get an electric ask your self. with the aid of fact all steel products (which includes water pipes) are related at the same time, each and all of the steel products in the construction would be on an identical skill, subsequently it merely isn't obtainable to get a ask your self with the aid of touching 2 'earthed' products at as quickly as. Bonding takes on an important and particular technical magnitude whilst it comprises swimming pools and fountains. For those swimming pools and fountains, any conductor, (to illustrate this suggests bits of steel etc., no longer the twine conductor twine to a pump,) over a definite length ought to be bonded to make certain that every physique conductors are equipotential and don't supply a unsafe conductive direction. Buried in the floor, and specially situations even having a small leak, a pool could be a greater effective floor than the electrical powered panel floor. With each and all of the accomplishing aspects bonded, that's far less probable that electric contemporary will come across a direction by a swimmer.

Answer 5

Grounding should be a common ground with all your equipment. U may bond to a power line or to a ground. Bonding that I am talking is also cad-well.

Answer 6

electrical bonding is the connection between more than one coductor either carring current or not where grounding or earthing is used for safty and protecting working personnel against electical chocks and protecting the equipment against damage.

Answer 7

To put it simply, gounding is the initial connection of a metal conductor (such as a water pipe) to the grounding rod. Bonding is when you connect all other metal conductors (such as water pipe to gas pipe) to each other. For safety reasons this is done to protect both you and your equipment.