Connections between anode lead wires and structures to be protected should be:

Connections between anode lead wires and structures to be protected should be thermite welded or made by means of pressure type grounding clamps to ensure a strong and reliable electrical connection. This type of connection is critical for effective cathodic protection systems, which are used to prevent corrosion of metal structures, such as underground storage tanks.

Thermite welding creates a permanent, high-conductivity joint that will not loosen over time, thus ensuring continuous electrical contact between the anode and the structure. Similarly, pressure type grounding clamps provide a secure physical connection that can withstand environmental factors, including moisture and temperature changes, which could otherwise compromise the integrity of the connection.

This strong connection is vital because it enables the proper operation of the cathodic protection system, ensuring that the electrical current efficiently protects the underground structures from corrosion. Poor connections, such as loose connections or connections made using inappropriate materials, can lead to system failures and increased maintenance costs, undermining the effectiveness of the corrosion protection measures.