This standard specifies the minimum technical requirements for the design, construction, testing and management of cathodic protection for buried steel pipelines. This standard applies to the external wall cathodic protection of buried steel oil, gas and water pipelines, and other buried steel pipelines can be implemented as a reference.
GB/T 21448-2008 Referenced Document
GB 50058 Code for design of electrical installations in explosive atmospheres*, 2014-01-29 Update
GB/T 10123 Corrosion of metals and alloys—Vocabulary*, 2022-04-15 Update
GB/T 21246 Measurement method for cathodic protection parameters of buried steel pipelines*, 2020-11-19 Update
GB/T 3620.1 Designation and composition of titanium and titanium alloys*, 2016-12-30 Update
SY/T 0086 Standards for electrical insulation of cathodically protected pipelines*, 2020-10-23 Update
SY/T 0095 Test method for laboratory evaluation of buried magnesium sacrificial anode samples
SY/T 0096 Specification of impressed current deep anode beds*, 2013-11-28 Update
GB/T 21448-2008 history
2017GB/T 21448-2017 Specification of cathodic protection for underground steel pipelines
2008GB/T 21448-2008 Technical Specifications of Cathodic Protection for underground Steel Pipeline
GB/T 21448-2008 Technical Specifications of Cathodic Protection for underground Steel Pipeline has been changed from SY/T 0019-1997 Design specification of sacrifical anode for buried steel pipeline.