INTRODUCTION

Grounding (or earthing) is the art of making an electrical connection to the earth. The process is a combination of science and "art." as opposed to pure science,because it is necessay to " test the option," as opposed to using predetermined methods and calculations, The options for each site must be determined through visualization and evaluation, individually, using a related analytical process. The earth must be treated as a semiconductol',while the grounding electrode it self is a pure conductor. These factors make the design of an earthing system complex, not derived from a simple calculation of the random driving of a fow rods into the soil. Know ledge of the local soil conditions is mandatory and is the first step in the design The includes its moisture content. temperature, and resistivity under a given set of conditions

IMPORTANCE OF EARTHING

Grounding or earthing is among safety . If the Body of any electrical equipment or machinery is grounded it will pass the current to ground in case to short Circuit.If a person accidentally touch the body of that machinery which is connected to conductor and it has much lower resistance then human body. So resistance of grounding conductor as also a major factor in electric safely.

HG EARTHING ELECTRO

The 'B' or 'C' Class GI Copper pipe and two G.I. or Copper plate thickness of 2 to 3mm coated with anticorrsion chemical filled with high conductive and corrosion resistant mixture and hygroscopic compound electrode. A safe, sensitive and efficient earthing system was felt and HG after Effort, designed and developed the pip-in pipe-and pipe-pipe with plate technology system of earthing This earthing technology is effective.Live, reliable, maintenance free and cost effective.

BACKFILL COMPOUND

Our backfill compound called as "Conductive Grounding Minerals" which will be used around the earth electrodes at the time of installation. Conductive grounding minerals is a combination of graphite, natural earth minerals, etc which is of hygroscopic property to retain the moisture for a long time. During installation with proper water pouring, the Conductive grounding minerals will convert into the gel formation and its quality to retain the moisture up to twenty times its dry volume as well as it create a gel layer surrounding of our electrode our backfill compound is not soluble in water, moisture

property up to the life of the electrode which is more then 25 years.material is soil friendly Conductive grounding minerals is a combination of totally corrosion free and highly conductive & non-conosive minerals.

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INSTALATION WORK

• Augur/Drill/Bore a hole of 3to5 or 6to 10 inches in diameter to a suitable depth of 2 or 3 meter
• Mix backfill compound wilh dugout soil & put the mixture into pit.
• Place the electrode at center of the pit.
• Stat refilling empty space around electrode with backfill compound in small quantities.
• Pour some water and push up the pit along with wooden rod. A l low trapped air to escape.
• In this manner gradually continue refilling process till electrode is fixed in the pit up tothe patch painted on the top portion of electrode.
• Pour a few buckets of water around the pit per day of for 3 days so tbat system can be set.

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PRECAUTION

• Do not cut el electrode while installing
• Do not uses force to put the electrode into pit.
• if soil in pi t sinks,fil l it with backfill compound or good soil
• The red color patch of electrodeare above the soil

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ADVANTAGE

• Safety and Reliability
• Low impedance Earthing
• Ensures Safety of life and property from earth related electrical hazards
• Longer service life than conventional earthing systems
• Corrosion resistant

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EARTH RESISTANCE

Earth Resistance and How it should below

• No electric circuit either single phase or three phases is complete without proper earthing.
• The earthing or grounding is associated with Earthing strips,earth plate,
• Electrodes Fastening or welding Proper.
• Resistance of Earth, Resistivity of Soil
• Unless all these are stable & healthy the word good earthing will have no meaning or value. To understand why earthing resistance must be low, use ohm' law.
  V ∝ I
  V = R x l (where, V is Voltage in Volts R is Resistance in Ohm and I is current in ampere.)
  R = eL/ A (where,R is resistance of electrode. e is substance of electrode, L is length of electrode A is Area electrode )
  R= R ^o ( 1+ ∝ △T(where,△T is Changing temerature, ∝is temerature,coefficient )
  

(If Temperature is down than resistance will be less)

TECHNICAL COMPARISON

HG EARTHIG ELECTRODE	TRADITIONAL EARTHING SYSTEM
1 .One G.I. Pipe covered by another G.I. Pipe	1. One G.I./ C.I. Pipe
2.Electrode not in direct touch of soil covered with back fill.	2. Electrode in Direct touch of soil
3. Absence of Corrosion .	3. Fast Corrosion
4. No Fluctuation of ohmic value	4. Fluctuation of value are more ,poor life
5. Maintenance Free	5. Maintenance Required