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SAN-EARTH (earth resistance reducing material)

 
SAN-EARTH (earth resistance reducing material)  

SAN-EARTH is a conductive concrete type earth resistance reducing material, mainly composed of carbon (amorphous carbon) and cement. Basically, earth wires are laid in a trench and then covered with SAN-EARTH in powder form. The powder absorbs the moisture in the soil and forms a conductive concrete earth, which provides earthing resistance. Another approach is to mix the material with water and use the boring earthing method.

・IEC 62561-7 compliant (※SAN-EARTH M5C)

 

 
 
 
 
 

SAN-EARTH (M1C) conductive concrete

 
The construction work is simple. Earthing wires are laid in a trench along the foundations of a building or similar and the wires then completely encased in SAN-EARTH conductive concrete. Once SAN-EARTH conductive concrete hardens, it has the same compressive strength as ordinary concrete and so can be safely used in building foundations.
 
Basic construction method 1
 
Basic construction method 1  

(1)Earth wires are laid in a trench around the outside of the foundations.
(2)SAN-EARTH conductive concrete is applied so that the wires are completely covered.

SAN-EARTH M1C (25kg) is blended with approx. 7 liters of water.
(3)About 30cm of the covered part of the rising section of the earth wire is also embedded in the conductive concrete.

 
Basic construction method 2
 
Basic construction method 2   (1)The earth wire is laid inside the foundations.
(2)SAN-EARTH conductive concrete is applied so that the wires are completely covered.
SAN-EARTH M1C (25kg) is blended with approx. 7 liters of water.
(3)About 30cm of the covered part of the rising section of the earth wire is also embedded in the conductive concrete.
(4)When the SAN-EARTH mortar is dry, the next step of the process is to lay the foundation concrete.
 
Example of laying SAN-EARTH conductive concrete M1C
 
Example of laying SAN-EARTH conductive concrete M1C
 
*One 25kg bag of M1C will cover approx. 3 meters (width 30cm).
Fig. Laying SAN-EARTH M1C
 
 

SAN-EARTH (M5C) for construction

 
SAN-EARTH (M5C) for construction absorbs the moisture in the surrounding soil and hardens naturally, making it ideal for installation work in locations where it would be difficult to transport water.
The earth wires are laid in an excavated trench and then the bottom of the trench simply filled with SAN-EARTH so that the wires are completely encased. Examples of how SAN-EARTH (M5C) is used in construction work are shown below.
Also, with the “SAN-FLEX S method” (separate item), which also uses a conductive covered wire, “SAN-FLEX wire” for the grounding pole, a longer lasting earthing works can be achieved very simply.
 
Basic construction method
 
Basic construction method  

(1)Lay earth wires.
(2)Apply SAN-EARTH so that the earth wires are completely covered.

(Thickly around the earth wires, thinly at other locations)
(3)About 30cm of the covered part of the rising section of the earth wire is also embedded in SAN-EARTH.
(4)Carefully backfill with soil to a depth of around 10cm and tread down to compact it.

(5)Completely backfill with soil.

 
Note: If the earth wires are not completely covered with SAN-EARTH, they may corrode due to electropotential difference and the effect of electrolytic corrosion prevention will be lost.
 
Example of laying SAN-EARTH M5C
 
Example of laying Sun-earth M5C
 
*One 25kg bag of M5C will cover approx. 3 meters (width 50cm).
Fig. Laying SAN-EARTH M5C
 
 

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