Power pipeline

Yes, it belongs to industrial pipes; the code is 8320

This post was last edited by 678-2 on 2017-7-18 at 14:16. No, power pipelines (GD) are a type of pressure pipeline. Specifically, you can refer to GBT 32270-2015 \"Code for Pressure Piping – Power Piping\", Section 1: Scope – Industrial Piping (GC). For reference, you may also consult Part 1 of the GB/T 20801.1-2006 series, \"Code for Pressure Piping – Industrial Piping\"

Assigned to category 8000 for industrial pipelines, and category 8320 for power pipelines – product type

In principle, it should now be classified as GC; it still depends on the opinions of the local special inspection agency

As a result, chaos ensued worldwide – did the rules for determining pipeline stress change?

Minutes of the 2018 Annual Meeting of the Power Pipeline Technology Committee and the Seminar on the Revision of the \"Regulations for Safety Inspection of Pressure Pipelines – Industrial Pipelines\" The China Electric Power Planning and Design Association (hereinafter referred to as the Association) held the \"2018 Annual Meeting of the Power Pipeline Technology Committee and the Seminar on the Revision of the ‘Regulations for Safety Inspection of Pressure Pipelines – Industrial Pipelines’\" in Changchun from September 5 to 6, 2018. A total of 20 representatives from 14 organizations, including Northeast Electric Power Design Institute Co., Ltd., attended this meeting. The main points of the meeting are summarized as follows: Third, at the request of the relevant departments of the State Administration for Market Regulation, the meeting discussed suggestions for revising the \"Safety Technical Inspection Regulations for Pressure Pipelines – Industrial Pipelines.\" The key points include: 1. The classification and grading of pressure pipelines should be consistent with the \"Catalogue of Special Equipment\" (Document No. 114 issued by the General Administration of Quality Supervision, Inspection and Quarantine in 2014), while also ensuring continuity in the policies related to the supervision of pressure pipelines. It is recommended that, in line with the \"8300 series\" specified in Document No. 114, process pipelines (8301) be classified as GC1(1), GC1(2); power pipelines (8302) as GC2(1), GC2(2); and refrigeration pipelines (8303) as GC3 ； Among them, the power pipeline (GC2) is divided into two stages according to subcritical parameters, and the feedwater is included within the scope of management of the power pipeline. The specific recommendations are as follows: A1.3 GC2 (1) class (1) power plant, transmission design pressure P≥16.7MPa ； Or steam and steam-water two-phase flow pipelines with a design pressure of 16.7 MPa > P ≥ 4.0 MPa and a design temperature of T ≥ 570°C ； — 3 —(2) Water pipelines in power plants with a design pressure of P≥22MPa for transportation. A1.4 GC2(2) class refers to other power pipelines other than the GC2(1) class pipelines specified in Annex A1.3 of this document. The China Electric Power Planning and Design Association is studying this issue; in the future, process pipelines will be classified as GC1, power pipelines as GC2, and refrigeration pipelines as GC3.