GB/T 25292-2022Specification for direct current machine in ships (English PDF)

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 for Standardization Documents" drafting.

This document replaces GB/T 25292-2010 "Technical Conditions for Marine DC Motors". Compared with GB/T 25292-2010, except for structural In addition to rectification and editorial changes, the main technical changes are as follows.

--- Changed the content of rated power and rated voltage requirements (see 5.4.1, 5.4.2, 5.4.1, 5.4.2 of the 2010 edition);

--- Changed the content of thermal classification and temperature rise requirements (see 5.4.3, 5.7.6, 5.4.3, 5.7.5 of the 2010 edition);

---Changed the content of the radial circular runout tolerance value (see 5.4.7.3, 5.4.7.3 of the 2010 edition);

--- Changed the inter-turn impulse withstand voltage requirements (see 5.7.4, 5.7.4 of the 2010 edition);

--- Added the ground impulse withstand voltage performance requirements and test method content (see 5.7.5, 6.14);

---Deleted anti-mold performance and related test requirements (see 5.7.14 of the 2010 edition);

--- Changed the content of the vibration intensity limit requirements (see 5.7.19.2, 5.7.19.2 of the 2010 edition);

--- Changed the electromagnetic compatibility requirements and test method content (see 5.7.20, 6.16, 5.7.20, 6.16 of the 2010 edition).

1 Scope

This document specifies the classification and nomenclature, technical requirements, test methods, Inspection rules, packaging, transportation, storage, spare parts and warranty period.

This document applies to all types of marine DC motors and marine DC generators except for DC amplitude voltage motors.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable 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 icon marks

GB/T 755-2019 Rating and performance of rotating electrical machines

GB/T 997-2008 Classification of structural types, installation types and terminal box positions of rotating electrical machines (IM code)

GB/T 1032-2012 Test methods for three-phase asynchronous motors

GB/T 1311-2008 DC motor test method

GB/T 1971-2021 Marking of wire ends and direction of rotation of rotating electrical machines

GB/T 1993-1993 cooling method for rotating electrical machines

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 2423.17-2008 Environmental testing for electrical and electronic products - Part 2: Test method Test Ka. Salt spray

GB/T 2828.1 Counting sampling inspection procedure Part 1: Batch-by-batch inspection sampling plan retrieved by acceptance quality limit (AQL)

GB/T 2900.25 Electrotechnical terms for rotating electrical machines

GB/T 3836.1-2021 Explosive atmospheres Part 1: General requirements for equipment

GB/T 3836.2-2021 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d"

GB/T 3836.3-2021 Explosive atmospheres Part 3: Equipment protected by increased safety type "e"

GB/T 3836.4-2021 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i"

GB/T 3836.5-2021 Explosive atmospheres Part 5: Equipment protected by positive pressure enclosure "p"

GB/T 3836.8-2021 Explosive atmospheres Part 8: Equipment protected by type "n"

GB/T 4772.1-1999 Dimensions and output power levels of rotating electrical machines Part 1: Frame size 56~400 and flange size 55~

GB/T 4772.2-1999 Dimensions and output power levels of rotating electrical machines Part 2: Frame size 355~1000 and flange size 1180~2360

GB/T 4831-2016 Product model preparation method for rotating electrical machines

GB/T 4942-2021 Degree of protection (IP code) classification of the overall structure of rotating electrical machines

GB/T 7060-2019 Basic technical requirements for marine rotating electrical machines

GB/T 10068-2020 Measurement, evaluation and limit value of mechanical vibration of motors with a shaft center height of 56mm and above

GB/T 10069.1-2006 Measurement methods and limits of noise of rotating electrical machines Part 1: Measurement methods of noise of rotating electrical machines