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Chemical Earthing & Earth Enhancing Compound

How are they helpful ???


Chemical (Earth Enhancing Compound) used at Industrial / commercial / residential application in India, in places where soil resistivities <500 Ωm are helpful only in Deteriorating the life of earth electrode in soil.


Earth electrodes are the most dangerous part of electrical installation across India. The belief "earthing" means "earth electrodes in soil" makes the electrical installation most vulnerable to accidents such as fire due to short circuit. Most industrial and commercial buildings are surrounded by earth electrodes. There are hospitals with more than 200 earth pits and data centers with more than 300 earth pits. All these earth pits comes with the common claim of a magic compound which solve all electrical problems.


Note: Application guide for the use of earthing enhancing compounds EEC to improve the performance of grounding systems by Prof. Jan Meppelink is included to understand more on the subject.


Earth Enhancing Compound is a sensitive subject in electrical engineering due to,

  1. Exorbitant claims by manufacturers (nice stories always).

  2. Nonawareness of users believing the claims due to technical & commercial reasons.

  3. Test one product and supply another by manufacturer.

  4. Belief that a chemical will appear as a savior for all electrical safety problems.

In this webinar we verify Earth Enhancing Compounds: What are they and how does they help improving the efficiency of an electrical installation?


Earthing Enhancing Compound (EEC) are low resistivity compound that is intended to lower the earthing resistance of an earth termination system when added between the buried earth electrode and subsoil. These are often called as Chemical Earthing in India, which is used along with pipes or pipes in pipe vertical earth electrodes.


The IEC 62561-7 explains the technical requirement of these compounds. The IEEE 80 and IS3043 also mentioned these compounds in the standards.


This subject is one of the interested subject to every Electrical Engineer not only in India, but globally.


The webinar will explain the technical and quality requirements of Earth Enhancing Compounds, and most importantly its application.


The webinar was conducted on 21May 2022 with 1000+ registrations and over 400 participants.


The video is divided into Chapters:

0:00 Introduction

13:10 Main technical presentation

01:22:34 Conclusion

01:30:56 Question and Answers

Application guide for the use of earthing enhancing compounds EEC to improve the performance of grounding systems by Prof. Jan Meppelink is included to understand more on the subject.



























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2 Comments


Gyaneshwar Singh
Gyaneshwar Singh
Aug 05, 2022

Hello sir, Thankyou very much for this great presentation. I have a question- You said in TT system once we have an RCCB, the earth resistance doesn't matter so much because RCCB can disconnect the circuit even with 30mA current. But sometimes in industries we have an ACB as incomer, in such cases how should we decide the earth resistance? I understand generally we have a TNS system in industries, in which case the earth resistance doesn't matter again due to metallic return path but some of the projects I am working on has TT system (because the transformer is under ownership of DNO and they do not provide a PE conductor) with an ACB incomer.

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gopa kumar
gopa kumar
Aug 05, 2022
Replying to

The IS code of practice insist as below


23.1 Basic Purpose of Earth Fault Protection


a)the earth fault loop impedance has to be low enough to allow adequate earth fault current to flow to cause an overcurrent protective device (for example, a fuse or circuit breaker) in the faulty circuit to operate in a sufficiently short time

or


where it is not possible to achieve a low enough earth fault loop impedance, disconnection may be initiated by fitting a residual current device ( RCD ) of 30 mA. The BS7671 also explains that fault loop impedance test is not necessary if the residual current is <500 m Amps. You can find it in section 6. An ACB with a disconnection current…

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