Maintenance Free Earthing Solution
Safe Earthing Electrode (S.E.E.)
To have a good earth resistance has always been a problem in soils of poor electrical conductivity. This grounding improvement product is designed to reduce the soil resistivity locally and therefore improve the resistance of the grounding system.
Maintenance free safe earthing electrode by utilizing metal alloys and natural chemical compositions, the safe earthing electrode is able to provide a multifaceted proactive earthing protection strategy. The earthing electrode is manufactured from custom-made G.I tubes to ensure maximum conductivity and prolonged service life. The safe earthing electrode contains a conductor rich crystalline mixture that will protect the main earth electrode in the soil. This will ensure a highly conductive state for the fault current to pass on to earth.
Earthing is very important area of electrical engineering maintenance. Generally people forget about earthing once it is installed, no one checks it unless and until something goes wrong and finds fault in earthing. In most cases it fails due to corrosion of the pipe. Therefore earthing electrode can be used for effective earthing, which will ensure safety to human life, appliances, machines, equipment etc. Earthing is absolutely essential and it is mandatory by various electrical departments.
In the present day hitech scenario, most of the machines are solid state controlled; relay logic systems have changed over to solid-state logic systems and microprocessor based control systems. For these controls, spike free and steady voltage is of high importance. A good and continuous effective earthing is of paramount importance. Safe Earthing Electrode is the most effective product for earthing.
Thus, SABO- Safe Earthing Electrode is a totally maintenance free solution for 10 years and is suitable to any application requiring high performance earthing.
Applications
- Transmission and Distribution systems.
- Telecommunication Towers and Microwave Antennas
- Substations and Power Generators.
- Transformer Neutral Earthing.
- Lightning and Surge Arrestor Earthing.
- Computer and data Processing Centers.
- Manufacturing facilities & Refineries.
- Equipment Body earthing.
- Food Processing and Water Treatment Plants.
- Remote and Central Office Digital Switches.
- Oil Refineries and Pump Stations
- Residential buildings. Others, where hi-tech earthing is required.
Advantages & Benefits
Maintenance Free: This is a maintenance free earthing, no need of extra water pouring at regular intervals as in conventional earthing, because it retains the moisture.
Consistency: Continuously maintains the same (approx.) earth resistance value over time regardless of soil & climate conditions. Unlike a standard plate/ rod, the stability of the Safe Earthing Electrode (S.E.E.) will remain constant over the life span of the plate/rod, and the resistance of the electrode is less affected by adverse climate conditions.
More Surface Area: The conductive compound creates a conductive zone, which provides the increased surface area for peak current dissipation and also gets stable reference point.
A long and reliable life (Fit and Forget).
Comparative Chart
|
Safe Earthing Electrode
|
Traditional Method Of Earthing
|
|
Pipe in pipe technology
|
Ordinary GI, CI or copper pipe or plate
|
|
Safe earth electrode (inner pipe) is not in direct contact with the soil, hence it never corrodes.
|
Is in direct contact with the soil, hence corrodes very early.
|
|
Earth resistance value remains unchanged for many years, only slight fluctuation will be noticed. Over a period of time the earth resistance value becomes better.
|
Fluctuation in earth resistance value depending the season, hence electrical and electronic equipments may fail.
|
|
Electrode is surrounded by highly conductive soil so the change dissipation through the electrode is very high and the current density across the electrode is very low which results in very high fault current, is sufficient to trip the fault relays.
|
Distribution of short circuit current is less in terms of change dissipation hence it generates high potential at the pit which results in low fault current in comparison to required required tripping circuit of fault protection relays.
|
|
The back fill compound used becomes part of the soil around the electrode.
|
Back fill compound (Salt & Charcoal) used gets washed away in rainy seasons and will be resulted as high Resistance value.
|
|
It requires less space and time to install the earthing electrode.
|
It requires a large space and time to install the earth electrode.
|
SABO Earth resistance enhancing compound (Model: SABO-EREC) bags are provided for enhancing the earth resistance and maintaining the moisture content in the soil. S.E.E. is of 2 / 3 m. in length. EREC bag is of 20kg. in weight.
Life of electrode is very high and resistance value less than 0.1 ohm can be achieved by the same. Resistance value depends upon the soil. In case the desired earth resistance value is achieved then the two or more electrodes should be installed forming a grid and then the desired earth resistance value can be achieved
ELECTRODE MODELS
SABO-MFE-40-2 (40 mm. dia and 2m. long)
SABO-MFE-50-2 (50 mm. dia and 2m. long)
SABO-MFE-80-2 (76 mm. dia and 2m. long)
SABO-MFE-40-3 (40 mm. dia and 3m. long)
SABO-MFE-50-3 (50 mm. dia and 3m. long)
SABO-MFE-80-3 (76 mm. dia and 3m. long)
INSTALLATION PROCEDURE:
1. Bore or excavate the earth pit as desired. Generally, 5-8 inches dia bore is sufficient for SABO electrodes.
2. Pour some water in the earth pit to make it wet.
3. Prepare the mixture by mixing SABO-EREC with 6 times water. Mix it thoroughly forming a liquid paste. Ensure that no solid particulars like stones, plastic, etc. should be present in the mix.
4. Now pour approx. 1/6th of the mixture in the earth pit. Now insert the earth electrode in the pit.
5. After 5 minutes again pour 1/6th mixture and again wait for 5 minutes and then again pour the mixture. Repeat this procedure until entire mixture is poured inside. Check that the top 6-8 inches of the earth pit should be filled with clean normal soil.
6. Now, cover the earth pit by means of earth pit cover.
7. Pour water near (0.3m to 1.5m all around) the earth pit, not over or inside the earth pit.
8. Earthing is now completely installed.
