Electronic Earthing

Electronic earthing would just be the earthing of electronics (essentially the same as your "normal earthing"), but if you are talking about an electronic earthing pit, in which you have a large number of very large electronics earthed back to this one "pit" see this thread.

Earth is earth is earth.

Can you mail me your mail ID thro this forum's mailbox - so that I can send you a technical paper authored by me and presented at various technical seminars on the subject?

Please send your mail id I wil mail you

Use the private messaging facility. Admin deletes email addresses posted in the main part of the forum.

It seems that various individuals and industrial organizations just like to make things up as they go along. Earth is the same as ground and makes the electrons go round and round. All electrical systems utilize a "ground" or "earth". What it is called may be dependent on the in-situ use for clarification and troubleshooting purposes.

For example, I have three major grounding systems in my facility. However, they are all connected at one point, essentially making them one ground. The grounding systems all have unique names so the proper equipment can be connected at various locations to reduce harmonics and artifacts in the processing equipment. They are isolated (to the best of my ability) from each other save the one point near the service entrance. All utilize the same grounding field outside of the facility.

We have one more grounding system which utilizes a separate grounding field. That equipment is further "isolated" from the building systems but has a current protection panel which has isolation blocks, lightning arrestors, cabinet equalizing switches, etc. for protection of life and equipment.

meaning, you do have two completely separate grounding field?

and I suppose you haven't had any problems with that?

Elektronik-nik earthing:

A substation, a building, a common plant have an earthing value of, about 10 to 30 Ohms, measured at earthing pit bar, depending of soil.

A measuring, or an electronic earthing have 1 Ohm of value (evidently at another electronic pit, generally coupled with an earting mat of 1 to 2 square meters, and this earthing has to be completely separated of the building earthing, especially if you have some telecom devices included in this electronic circuits. Be very careful with that type of earthing: if you have a multiple conductor cable, the armour of this cable is earthed to the building, but the shields of each conductor have to be earthed to the electronic one (without contact, of any type, including the drawers, their enclosure - but their cubicle has to be earthed to building) It's sometimes an headache! Because, some PCB have to be isolated of their drawer and, if you have some PCB with high voltage, you need a special insulated strap directly from pcb to building earth, especially in supply cards. Each type of link has to be studied separately and carefully. Electronic earthing may double the price of your electronic cubicle! Carefull also with the type of telecom earthing depending the way to earth the poles of their battery (positive, or negative, or floating).

Good night, BRZK.