Step 1 :

Excavate the Horizontal trench size 500 mm width by 1000 mm depth (Fig. 1)

Fill up the bottom layer of the trench up to 300 mm approx. by Black Soft Soil only and spray water till the soil become wetty. (Fig. 2)

Step 2 :

Prepare the Homogeneous mixture of our Vx-EHT(RED) Complex with Black soft soil having ratio of (100 kgs. complex + 8 cmt. Black Soft Soil).

Fill up the 2nd upper layer with above mixture upto further 200 mm over previous layer of Black Soft Soil. (Fig. 3).

Lay down the Horizontal earthing grid conductor of M.S./G.I. round bar or flat section having the cross sectional area derived according to the magnitude of the fault current to flow. (the magnitude of fault current is calculated according to the network data related with the proposed project site). (Fig. 4)

Again cover the ground earthing grid conductor with the above prepared mixture to further 200 mm layer and pour the water till the entire mass become wetty. (Fig. 5)

Step 3 :

Finally cover up the remaining 300 mm layer in the trench by black soft soil and apply proper ramming. This will complete the horizontal grid construction of project site. (Fig. 6)

P.S.

The requirement of steel bar flat, black soft soil and our Vx-EHT(RED) complex can be worked out as per the over all length of the Horizontal Grid to be constructed for the proposed project site/switch yard.