GB/T 42057-2022 English PDF

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GB/T 42057-2022: Hydrostatic pressure test method for submersible and its pressure equipment
Status: Valid

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GB/T 42057-2022	269	Add to Cart	3 days	Hydrostatic pressure test method for submersible and its pressure equipment	Valid

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Basic data

Standard ID: GB/T 42057-2022 (GB/T42057-2022)
Description (Translated English): Hydrostatic pressure test method for submersible and its pressure equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U04
Classification of International Standard: 47.020.01
Word Count Estimation: 14,179
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42057-2022: Hydrostatic pressure test method for submersible and its pressure equipment

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hydrostatic pressure test method for submersible and its pressure equipments ICS 47.020.01 CCSU04 National Standards of People's Republic of China Pressure test methods for submersibles and their pressure-bearing equipment Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test purpose 2 5 Test conditions 2 5.1 Experiment testers 2 5.2 Test object 2 5.3 Test program 3 5.4 Test equipment and instrumentation 3 5.5 Test Environment 3 6 Test content and method 3 6.1 Pressure housing pressure test 3 6.1.1 Preparation before the test 3 6.1.2 Test pressure 4 6.1.3 Loading and unloading speed 4 6.1.4 Adding and uninstalling programs 4 6.1.5 Post-test inspection 4 6.2 Buoyancy block pressure test 5 6.2.1 Pre-test requirements 5 6.2.2 Test pressure 5 6.2.3 Adding and uninstalling programs 5 6.2.4 Post-test inspection 5 6.3 Composite Light Shell Pressure Test 5 6.3.1 Pre-test requirements 5 6.3.2 Test pressure 5 6.3.3 Adding and uninstalling programs 5 6.3.4 Post-test inspection 5 6.4 Pressure test of oil-filled equipment 6 6.4.1 Requirements before testing 6 6.4.2 Test pressure 6 6.4.3 Adding and uninstalling programs 6 6.4.4 Post-test inspection 6 6.5 Pressure test of watertight connectors and cables 6 6.5.1 Requirements before testing 6 6.5.2 Test pressure 6 6.5.3 Adding and uninstalling programs 6 6.5.4 Post-test inspection 7 6.6 Functional test under pressure environment of submersible system or equipment 7 6.6.1 Function test item 7 6.6.2 Requirements before testing 7 6.6.3 Test pressure 7 6.6.4 Adding and uninstalling programs 7 6.6.5 Static energization test of electrical system or equipment 7 6.6.6 Dynamic running test of mechanical hydraulic system or equipment 8 6.6.7 Pressure test of power battery 8 6.6.8 Post-test inspection 8 7 Handling of abnormal situations during the test 8 7.1 Test suspension 8 7.2 Termination of test 8 8 Evaluation of test results 9 9 Test report9

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Submersible Standardization Technical Committee (SAC/TC306). This document is drafted by. China Ship Science Research Center. The main drafters of this document. Shen Yunsheng, Cheng Fei, Jiang Xuyin, Hu Zhen, Li Linglong, Shi Dongchun, He Weiwei, Li Wenyue, Wang Shuai, Wang Xuan. Pressure test methods for submersibles and their pressure-bearing equipment

1 Scope

This document specifies the test purpose, test conditions, test content and requirements, and evaluation of test results for the pressure test of submersibles and their pressure-bearing equipment. and test reports. This document applies to short-term hydrostatic external pressure tests of submersibles and their pressure-bearing equipment. Short-term still water for other subsea installations and their pressure-containing equipment The external pressure test can be carried out with reference to this document. Note 1.The submersible and its pressure-bearing equipment include the equipment parts on the submersible that are subjected to external pressure, and the submersible system or equipment with certain functions. The equipment parts include Pressure shells, buoyancy blocks, composite light shells, oil-filled pressure equipment and watertight connectors and cables, etc. Note 2.The short-term hydrostatic external pressure test is the external pressure that does not consider the effect of inertia and acceleration, the test medium is water, and the test pressure holding time is less than 24h test.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 150.1-2011 Pressure Vessels Part 1.General Requirements GB/T 150.4-2011 Pressure Vessels Part 4.Manufacture, Inspection and Acceptance GB/T 13407 Submersible and Underwater Device Terminology GB/T 40073-2021 Test method for external pressure strength of submersible metal pressure shell China Classification Society, Rules for Classification of Diving Systems and Submersibles,.2018

3 Terms and Definitions

Definitions and the following terms and Definitions apply to this document. 3.1 submersible submersible A general term for all kinds of underwater running equipment. Note. Submersibles include manned submersibles and unmanned submersibles. Manned submersibles are submersibles that carry passengers, usually including operational manned submersibles, deep diving rescue Lifeboats, underwater excursion boats, diving bells, life-saving bells, single-person atmospheric pressure diving suits and dual-function submersibles, etc.; unmanned submersibles are submersibles that do not carry passengers. Often includes remotely operated submersibles, autonomous submersibles, underwater gliders and towed submersibles. [Source. GB/T 40073-2021, 3.1] 3.2 pressure shell pressurehul Pressure-resistant structures capable of withstanding external/internal pressure on submersibles (3.1) and other underwater installations for housing personnel and equipment. [Source. GB/T 13407, 2.3.1, with modifications] ......

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