GB/T 39746-2021NC bus processing machine (English PDF)
数控母线加工机
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
March 9, 2021
Implementation date
October 1, 2021
Scope
GB/T 39746-2021 is the English-translated version of 数控母线加工机.
GB/T 39746-2021 is the Chinese national standard for numerically controlled busbar processing machines, the machines that punch, shear and bend copper and aluminium bars for switchgear.
It gives the types and basic parameters, the requirements - accuracy, rigidity, safety, electrical equipment and noise - the test methods, the inspection rules and the provisions on marking, packaging, transport and storage.
Machine builders, switchgear makers and the inspectors who accept a machine use it. Issued on 9 March 2021, it has applied since 1 October 2021.
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Document preview — GB/T 39746-2021
National Standard of the People's Republic of China
- ICS
- 25.120.10
- Classification
- J 62
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the type and basic parameters, requirements, test methods, inspection rules, signs, packaging, transportation, Store.
This standard applies to CNC bus processing machines.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 191 Packaging, storage and transportation pictorial signs
GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components
GB/T 5226.1 Electrical safety of machinery Electrical equipment of machinery Part 1: General technical conditions
GB/T 5231 Processed copper and copper alloy grades and chemical composition
GB/T 6576 Machine Tool Lubrication System
GB/T 7932 General rules and safety requirements for pneumatic systems and their components
GB/T 9969 General Rules for the Use of Industrial Products
GB/T 10923 General rules for precision inspection of forging machinery
GB/T 13306 signs
GB 17120 Safety technical conditions for forging machinery
GB/T 23281 Forging machinery noise sound pressure level measurement method
GB/T 26220 General technical conditions for industrial automation systems and integrated machine tool numerical control numerical control systems
JB/T 3240 Visualized symbols for forging machinery operation instructions
JB/T 5775 Technical conditions for forging machinery gray iron castings
JB/T 8356 Machine tool packaging technical conditions
JB/T 8609 Technical conditions for forging mechanical welding parts
JB/T 9954 Cleanliness of hydraulic system of forging machinery
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 NC busbar processing machine
It is a forming machine with busbar punching, cutting, embossing and/or bending functions controlled by a numerical control system.
3.2 Accuracyofholespacing
After the sheet is punched, the difference between the actual size of the two holes and the nominal size.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 3766Hydraulic fluid power -- General rules and safety requirements for systems and their components
- GB/T 5226.1Electrical safety of machinery -- Electrical equipment of machines -- Part 1: General requirements
- GB/T 5231Designation and chemical composition of wrought copper and copper alloys
- GB/T 6576Machine tool -- Lubrication systems
- GB/T 7932Pneumatic fluid power -- General rules and safety requirements for systems and their components
Similar standards
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Related Standards
GB 17120-2025 — Metalforming machinery - Safety technical specification
GB/T 10923-2009 — Test code of accuracy for metal forming machine
GB/T 13306-2011 — Plates
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GB/T 39746-2021
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