Why We put Salt and Charcoal into Earth-pit while Earthing?

Why We put Salt and Charcoal into Earth-pit while Earthing?

What is Earthing Resistance?

Earthing resistance is not the resistance of the electrode. The earthing resistance is not same all over the area. The value of earting resistance is depends upon the soil resistivity of the particular area. Actually the measured earth resistance is not only the resistance of the electrode, it is the combined resistance of conductor and the associated soil. During fault, if the soil resistance is higher the fault current cannot dissipate to associate soil.

To improve the conductivity of poor soil during fault current, salt and charcoal around the conductor is used to dissipate. Regarding this, IEEE 80–2013 clause 14.5 (a), (b), (c), (d) tells us about soil treatment for better conductivity.

Using Salt & Charcoal has its own demerits. Salt & Charcoal are leaching compounds so it required frequent application. 



Charcoal is used to retain the moisture for long duration because it is an adsorbent and salt is added to increase the conductivity both these products help to pass the leakage current through earth wire as early as possible to remove the chances of shock.

We can practice permanent earthing compounds which are moisture independent as per IEEE 80–2013 clause 14.5(d).

You may read about:

How salt and charcoal works to improve earthing resistance?



Coal or Charcoal is made of carbon which is good conductor that can minimize the earth resistant. The salt use as electrolyte to form conductivity between earth electrode (generally GI pipe or plate) Coal and Earth with humidity. Sand has used to form porosity to cycle water & humidity around the mixture.

The whole purpose of providing earthing is to discharge the leakage current or fault current safely to the ground. Means better the conductivity of the soil or lesser its resistance. Adding charcoal and water in earthing pit decreases soil resistivity. 

The layer of charcoal and salt helps to maintain low resistance for earth fault currents. Because of ionic behavior of salt and charcoal they will maintain moisture content around the earth pit. 

12 comments:

  1. I am pleased that I observed this site, just the right
    information that I was looking for!

    ReplyDelete
  2. Thanks for the sensible critique. Me and my neighbor were just
    preparing to do some research about this. We got a grab a
    book from our local library but I think I
    learned more from this post. I am very glad to see such fantastic info
    being shared freely out there.

    ReplyDelete
  3. Some truly nice and utilitarian info on this web site,
    also I believe the design and style has got excellent features.

    ReplyDelete
  4. Yay google is my world beater aided me to find this great site!

    ReplyDelete
  5. You have brought up a very excellent points, regards for the post.

    ReplyDelete
  6. I real glad to find this web site on bing, just
    what I was looking for :D besides saved to my bookmarks.

    ReplyDelete
  7. I'm truly enjoying the design and layout of your site. It's a very easy on the eyes which makes it much more enjoyable for me to
    come here and visit more often. Did you hire out a designer to create your theme?
    Great work!

    ReplyDelete
  8. Incredible quest there. What happened after? Thanks!

    ReplyDelete
  9. I am really happy to glance at this blog posts which contains tons
    of helpful information, thanks for providing such data.

    ReplyDelete
  10. My spouse and I stumbled over here different website and thought I might check things
    out. I like what I see so now i'm following you. Look forward to looking over your web page repeatedly.

    ReplyDelete
  11. When I initially commented I clicked the "Notify me when new comments are added" checkbox
    and now each time a comment is added I get three
    emails with the same comment. Is there any way you can remove people from that service?
    Thanks a lot!

    ReplyDelete

WAZIPOINT:
Thank you very much to visit and valuable comments on this blog post. Keep in touch for next and new article. Share your friends and well-wisher, share your idea to worldwide.