Cotton pocket coat 1 plastic woven bag.  Peat or pond soil, anode spacing 60-80m;  For black soil or clay, it is 80-100M;  For sandy soil, it is 120-150m;  When laying anodes, consider that the current generated by one group of anodes can satisfy the protection current required by this section of cable, and leave a margin.  

Complete set of magnesium sacrifice anode, by magnesium sacrifice anode ingot 1, a VV-10 mm 2 cable 3 meters, packing material 50kg, cotton pocket 1, plastic woven bag 1.  That is, there is a magnesium sacrific anode ingot in the cotton cloth pocket 1 its iron core welded vV-10 mm 2 cable 3 meters 1, the welding place to do insulation treatment, and is covered with heat shrinkable tube.  

■ Implementation scale:  

GB/T 17731-2009