1. Whether the installation of solid state couplers for all electrical equipment in the cathodic protection room meets the requirements of the Electrical Equipment Installation Regulations, and whether various grounding facilities are completed and meet the design requirements of the drawings.

2. The selection of materials for the off-site Settings of cathodic protection and the construction of cathodic protection materials are consistent with the design. The construction and connection of power point, test pile, anode ground bed and anode lead should strictly comply with the specification requirements. Cathodic protection manufacturers, especially the anode lead is connected to the positive pole, the pipeline junction point is connected to the negative pole, and the reverse electrode is strictly prohibited.