GB/T 50538-2020 in English

1. Background and significance of standard formulation

According to the requirements of the Ministry of Housing and Urban-Rural Development's "Notice on Issuing the 2015 Engineering Construction Standards and Specifications Formulation and Revision Plan" (Jianbiao [2014] No. 189), this standard aims to regulate the design, construction and inspection of the external anti-corrosion and thermal insulation layer of buried steel pipelines. Through extensive investigation and research and summary of practical experience, and with reference to relevant domestic and foreign standards, the external anti-corrosion and thermal insulation standard for buried steel pipelines with a medium temperature not higher than \(350^{\circ} \mathrm{C}\) and an ambient temperature not lower than \(-25^{\circ} \mathrm{C}\) was finally formed.

2. Comparison of Standard Frameworks

4. Implementation Suggestions

In actual projects, factory-prefabricated insulated pipes should be given priority to ensure quality consistency. For the on-site production part, construction must be carried out in strict accordance with standard requirements, and port processing and patching process assessment tests must be strengthened. At the same time, it is recommended to use intelligent testing equipment to comprehensively monitor the quality of the anti-corrosion layer and the thermal insulation layer.