Construction and installation methods of sacrificial anodes

1. Bag sacrificial anodes should be backfilled with properly compacted materials. When anodes and special packing materials are supplied separately, the anodes should be placed in the center of the packing material and the packing material should be compacted before backfilling. Care should be taken in all operations to ensure that the wires and joints are not damaged. To avoid tensile stress, the wires should be left with sufficient slack.
2. Where bracelet anodes are used, the pipe cover under the anode should be free of defects. When installing bracelet anodes, care should be taken to prevent damage to the cover. If concrete is sprayed on the pipeline, all concrete on the anode surface should be removed. If reinforced concrete is used, no metal contact is allowed between the anode and the steel mesh or between the steel mesh and the pipeline.
3. Where bagged anodes are used, trenches or furrows can be dug or plowed, with or without chemical packing materials as required, usually parallel to the pipe section of the protected pipeline.