GB/T 37575-2019 in English

1. Background and Significance of Standard Formulation

With the rapid development of industrialization, the corrosion problem of buried grounding electrodes is becoming increasingly serious, especially in soil and groundwater environments, where metal materials are susceptible to electrochemical corrosion. The formulation of GB/T 37575—2019 aims to provide scientific and systematic cathodic protection technical specifications for buried grounding electrodes to ensure their long-term safe operation.

The standard was proposed by the China Petroleum and Chemical Industry Federation and is managed by the National Technical Committee for Anti-Corrosion Standardization, which fully reflects its authority and practicality in the industry.

2. Comparison of standard frameworks

3. Key points for the design and installation of cathodic protection systems

The design of cathodic protection systems needs to take into account a variety of factors, including grounding material, soil resistivity, stray current interference, etc. The following are the key steps:

4. Implementation Suggestions

• Preliminary Assessment:Before implementation, a comprehensive assessment of the corrosion risk of the buried grounding body must be conducted, including the physical and chemical properties of the soil, the existing protection status, etc.
• System Selection:Choose the appropriate type of cathodic protection system (impressed current, sacrificial anode or combined use) according to the actual situation to ensure economy and reliability.
• Installation and Maintenance:Construct in strict accordance with standard requirements, paying special attention to electrical insulation and the setting of test stations. Regularly perform operation tests and record updates to ensure the long-term effectiveness of the system.