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GB/T 24985-2010Test methods for reliability on household and similar room air conditioners (English PDF)

家用和类似用途房间空气调节器可靠性试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 9, 2010

Implementation date

December 1, 2010

Scope

GB/T 24985-2010 is the English-translated version of 家用和类似用途房间空气调节器可靠性试验方法.

GB/T 24985-2010 is the Chinese standard "Test methods for reliability on household and similar room air conditioners".

Its scope clause reads: This standard specifies the household and similar use room air conditioner (hereinafter referred to as an air conditioner) Reliability Qualification and Reliability Acceptance Test Test requirements, test implementation, fault analysis and statistics, determination, recording and reporting test test test results and the like.

This standard applies to air-cooled condensers, Hermetic motor - compressors for household and similar use room air conditioner. Reliability Test Methods for other similar products available for implementation. Its clauses include terms, definitions and symbols.

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Document preview — GB/T 24985-2010

National Standard of the People's Republic of China

ICS
97.040.30
Classification
Y 61

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Introduction
  • 1 Scope
  • 2 Normative references
  • 3 Terms, definitions and symbols
  • 5 3 Test Requirements
  • 6 Test Example
  • Annex B (informative) Typical trouble and classification

1 Scope

This standard specifies the household and similar use room air conditioner (hereinafter referred to as an air conditioner) Reliability Qualification and Reliability Acceptance Test

Test requirements, test implementation, fault analysis and statistics, determination, recording and reporting test test test results and the like.

This standard applies to air-cooled condensers, Hermetic motor - compressors for household and similar use room air conditioner.

Reliability Test Methods for other similar products available for implementation.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 2422 electric and electronic products environmental testing terminology (GB/T 2422-1995, eqv IEC 60068-5-2.1990)

GB/T 2900.13 Electrotechnical terminology credibility and quality of service (GB/T 2900.13-2008, IEC 60050 (191).1990,

Amend.1.1999AndAmend.2.2002, IDT)

GB/T 5080.1 Equipment reliability testing - General requirements (GB/T 5080.1-1986, IEC 60605-1. 1978, IDT)

GB/T 5080.7-1986 Equipment reliability testing efficiency constant failure rate assumption under the MTBF of the verification test

Inspection program (IEC 60605-7. 1978, IDT)

3 Terms, definitions and symbols

GB/T 2900.13, GB/T 2422 and GB/T 5080.1 and established in the following terms, definitions and symbols apply to this standard.

3.1 Terms and Definitions

3.1.1 The average time between failures meanoperatingtimebetweenfailures; MTBF

Adjacent average working time between two failures, called MTBF. It only applies to repairable products.

3.1.2 MTBF verification interval demonstratedMTBFinterval

thetaL, thetaU

Under the experimental conditions, the possible range of real MTBF, that under the provisions of the confidence interval of MTBF estimate. thetaU called Confidence

Limit; thetaL called lower confidence limit.

3.1.3 On MTBF Test Limits uppertestMTBF

theta0

Acceptable MTBF values. When the MTBF of the true value of the product is close to theta0, the test program with a high probability of receiving product.

3.1.4 Lower MTBF Test Limits lowertestMTBF

theta1

GB/T 21551.4-2024 | GB/T 21551.6-2024 | GB/T 23333-2009 | GB/T 46731-2025 | GB/T 24986.4-2017 | GB/T 24986.2-2010 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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