T/CDSA 305.22-2017 Active Group standards

T/CDSA 305.22-2017 Underwater steel structure communication electromagnetic field crack detection regulations

Publish Date: 2017-03-15 Implement Date: 2017-03-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CDSA 305.22-2017

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Broadcasting and television transmission and reception equipment

ICS Name: Non-destructive testing

Publish Date: 2017-03-15

Implement Date: 2017-03-15

Scope

Scope: This guide is applicable to weld inspection that meets the following conditions simultaneously: a) The material is carbon steel or other magnetically conductive materials; b) The welds are butt welds of continuous welded structures; c) The thickness of the non-conductive coating on the material surface is t: t ≤ 5mm. For the detection of surface defects in welds of underwater steel structures, such as surface cracks and fissures caused by fatigue damage, brittle fracture, and stress corrosion cracking in the welds of K, T, and Y nodes of underwater riser structures, this procedure can be referenced for inspection; For surface defects caused by impacts on the surface of structures, this procedure can be used as a reference, but changes in the operating procedures should be considered; Main technical content: This procedure specifies the detection methods and procedural requirements for the use of ACFM (alternating current electromagnetic field detection) to inspect underwater steel structures.