GB/T 25292-2022
Specification for direct current machine in ships (English Version)
- Standard No.
- GB/T 25292-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 25292-2022
- Replace
- GB/T 25292-2010
- Scope
- This document specifies the classification and naming, technical requirements, test methods, inspection rules, packaging, transportation, storage, spare parts and warranty period of DC motors for ships (including mobile and fixed offshore installations). This document applies to all types of marine DC motors and marine DC generators except for DC amplitude voltage motors.
- Introduction
Core parameter system evolution
Project 2010 version 2022 version Range of change Maximum rated voltage 660V 750V +13.6% Working temperature rise margin 0.85 times the test value Allowing multi-layer winding layered assessment Algorithm upgrade Vibration detection threshold Unified standard Introduction of full-band limit table Graded optimization
Analysis of major technological innovations
Protection system improvement
The new standard introduces a dynamic PID control model in the sealing of rotating parts. The test results under IP66 protection level show that the maximum leakage flow in the immersion test is reduced by 43%, which effectively copes with the high salt fog environment in the South China Sea.
Product Reliability Verification
Salt Spray Corrosion Test Case
The 1200-hour continuous salt spray test found that metal electroplated parts need to pay special attention to the integrity of the protective layer of the H65 brass substrate. The test data showed that the durability of the zinc-nickel alloy plating is 450% better than that of electrolytic polishing.
Electromagnetic compatibility implementation specifications
Frequency range Conduction limit Measured abnormal scenarios 10kHz-150kHz 120dBμV Start-stop transient exceeds limit by 76% 500kHz-30MHz 73dBμV Composite shielding compliance rate is 92%
GB/T 25292-2022 Referenced Document
- CB/T 3667.1-2014 Cable Laying and Electrical Equipment Installation Accessories in Ships.Cable Transfixion Devices
- GB/T 10068-2020 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement, evaluation and limits of vibration severity
- GB/T 10069.1-2006 Measurement of airborne noise emitted by rotating electrical machines and the noise limits Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines
- GB/T 10250-2007 Electrical and electronic installations in ships.Electromagnetic compatibility
- GB/T 1032-2012 Test procedures for three-phase induction motors
- GB/T 12351-2008 Environmental technical requirements of rotating electric machines for tropical use
- GB/T 1311-2008 Test procedure for direct current machines
- GB/T 13384 General specifications for packing of mechanical and electrical product
- GB/T 13951-2016 General rule of environmental tests of electric and electronic products for mobile platforms and offshore installations
- GB/T 14048.1-2012 Low-voltage switchgear and controlgear - Part 1: General rules
- GB/T 14711-2013 General requirements for safety of small and medium size rotating electrical machines
- GB/T 191 Packaging.Pictorial marking for handling of goods
- GB/T 1971-2021 Rotating electrical machines—Terminal markings and direction of rotation
- GB/T 1993-1993 Cooling methods for rotating electrical machines
- GB/T 22716-2008 Test specifications of interturn insulation of armature winding for DC electrical machines
- GB/T 22717-2008 Test specifications of interturn insulation of field pole coil and field winding for electrical machines
- GB/T 2423.17-2008 Environmental testing for electric and electronic products.Part 2:Test method.Test Ka:Salt mist
- GB/T 2423.4-2008 Environmental testing for electrical and electronic products - Part 2: Test method Test Db alternating damp heat (12h + 12h cycle)
- GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)
- GB/T 2900.25 Electrotechnical terminology.Rotating electrical machines
- GB/T 3836.1-2021 Explosive atmospheres—Part 1：Equipment—General requirements
- GB/T 3836.2-2021 Explosive atmospheres—Part 2：Equipment protection by flameproof enclosures “d”
- GB/T 3836.3-2021 Explosive atmospheres—Part 3：Equipment protection by increased safety“e”
- GB/T 3836.4-2021 Explosive atmospheres—Part 4：Equipment protection by intrinsic safety“i”
- GB/T 3836.5-2021 Explosive atmospheres—Part 5：Equipment protection by pressurized enclosure “p”
- GB/T 3836.8-2021 Explosive atmospheres—Part 8：Equipment protection by type of protection“n”
- GB/T 4772.1-1999 Dimensions and output series for rotating electrical machines. Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080
- GB/T 4772.2-1999 Dimensions and output series for rotating electrical machines. Part 2: Frame numbers 355 to 1000 and flange numbers 1180 to 2360
- GB/T 4942-2021 Degrees of protection provided by the integral design of rotating electrical machines (IP code)—Classification
- GB/T 755-2019 Rotating electrical machines—Rating and performance
- GB/T 997-2008 Rotating electrical machines.Classification of types of construction,mounting arrangements and terminal box position for(IM Code)
- JB/T 4159-2013 General technical requirements of electric products for tropical environment
GB/T 25292-2022 history
- 2022 GB/T 25292-2022 Specification for direct current machine in ships
- 2010 GB/T 25292-2010 Specification for direct current machine in ships