BS EN 60068-2-1:2007
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
31-05-2007
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Application of tests for non heat-dissipating
specimens versus tests for heat-dissipating specimens
4.1 General
4.2 Ascertaining high or low air velocity in the test chamber
4.3 Non heat-dissipating specimens
4.4 Testing of heat-dissipating specimens
4.5 Temperature monitoring
4.6 Packaging
4.7 Diagrammatic representations
5 Test description
5.1 General
5.2 Test Ab: Cold for non heat-dissipating specimens with
gradual change of temperature
5.2.1 Object
5.2.2 General description
5.3 Test Ad: Cold for heat-dissipating specimens with gradual
change of temperature that are powered after initial
temperature stabilization
5.3.1 Object
5.3.2 General description
5.4 Test Ae: Cold for heat-dissipating specimens with gradual
change of temperature that are required to be powered
throughout the test
5.4.1 Object
5.4.2 General description
5.4.3 Energizing the specimen
6 Test procedure
6.1 Confirmation of performance
6.2 Working space
6.3 Thermal radiation
6.4 Specimen with artificial cooling
6.5 Mounting
6.6 Severities
6.6.1 Temperature
6.6.2 Duration
6.7 Preconditioning
6.8 Initial measurements
6.9 Conditioning
6.10 Intermediate measurements
6.11 Final temperature ramp
6.12 Recovery
6.13 Final measurements
7 Information to be given in the relevant specification
8 Information to be given in the test report
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications
Defines tests Aa, Ab, Ad which deal respectively with Cold for non-heat-dissipating specimen with sudden temperature change, with Cold for non-heat-dissipating specimen with gradual change of temperature.
This part of IEC 60068 deals with cold tests applicable to both non heat-dissipating and heat-dissipating specimens. For non heat-dissipating specimens, Tests Ab and Ad do not deviate essentially from earlier issues. Test Ae has been added primarily for testing equipment that requires being operational throughout the test, including the conditioning periods.
The object of the cold test is limited to the determination of the ability of components, equipment or other articles to be used, transported or stored at low temperature.
Cold tests cover by this standard do not enable the ability of specimens to withstand or operate during the temperature variations to be assessed. In this case, it would be necessary to use IEC 60068-2-14.
The cold tests are subdivided as follows:
Cold tests for non heat-dissipating specimens
with gradual change of temperature, Ab;
Cold test for heat-dissipating specimens
with gradual change of temperature, Ad,
with gradual change of temperature, specimen powered throughout, Ae.
The procedures given in this standard are normally intended for specimens that achieve temperature stability during the performance of the test procedure.
Temperature chamber(s) are constructed and verified in accordance with specifications IEC 60068-3-5 and IEC 60068-3-7.
Further guidance for dry heat and cold tests can be found in IEC 60068-3-1 and general guidance in IEC 60068-1.
| Committee |
GEL/104
|
| DevelopmentNote |
Renumbers and supersedes BS 2011-2.1A(1990) Supersedes BS 2011-2.1A(1977), 82/26813 DC & 93/209324 DC. 1993 version incorporates amendment 7783 to BS 2011-2.1A(1990). (09/2005) Supersedes 02/203353 DC. (09/2009)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DIN EN 60068-2-1 : 1995 | Identical |
| SN EN 60068-2-1 : 2007 | Identical |
| UNE-EN 60068-2-1:2007 | Identical |
| EN 60068-2-1:2007 | Identical |
| NF EN 60068-2-1 : 2007 | Identical |
| IEC 60068-2-1:2007 | Identical |
| I.S. EN 60068-2-1:2007 | Identical |
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| BS EN 122170:1994 | Harmonized system of quality assessment for electronic components. Sectional specification: radio frequency coaxial connectors. Series SSMB |
| BS EN 119000:1997 | Harmonized system of quality assessment for electronic components. Generic specification: dry and mercury wetted reed contact units |
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| BS 5760-13.5:1996 | Reliability of systems, equipment and components. Guide to reliability test conditions for consumer equipment Ground mobile equipment. Low degree of simulation |
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| BS EN 122180:1996 | Harmonized system of quality assessment for electronic components. Sectional specification. Radio frequency coaxial connectors. Series SSMC |
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| BS QC 221400:1997 | Radio-frequency connectors. RF coaxial connectors with inner diameter of outer conductor 3 mm (0,12 in) with screw coupling. Characteristic impedance 50 ohms (Type SMC) |
| BS PAS 019(1997) : 1997 | |
| BS 3041-7:1996 | Radio-frequency connectors R.F. coaxial connectors with inner diameter of output conductor 9,5 mm (0,374 in) with bayonet lock. Characteristic impedance 50 ohms (Type C) |
| BS QC 221200:1997 | Radio-frequency connectors. RF coaxial connectors with inner diameter of outer conductor 6,5 mm (0,256 in) with bayonet lock. Characteristic impedance 50 ohms (Type BNC) |
| BS EN 122160:1996 | Harmonized system of quality assessment for electronic components. Sectional specification: radio frequency coaxial connectors. Series SSMA |
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| BS 5839-3:1988 | Fire detection and alarm systems for buildings Specification for automatic release mechanisms for certain fire protection equipment |
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| BS EN 134000:1995 | Harmonized system of quality assessment for electronic components. Generic specification: variable capacitors. (Qualification approval and capability approval) |
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| BS QC 221300:1997 | Radio-frequency connectors. RF coaxial connectors with inner diameter of outer conductor 3 mm (0,12 in) with snap-on coupling. Characteristic impedance 50 ohms (Type SMB) |
| BS EN 122110:1994 | Harmonized system of quality assessment for electronic components. Sectional specification: radio frequency coaxial connectors. Series SMA |
| DEFSTAN 61-10(PT1)/1(1995) : 1995 | GENERATOR SETS (GROUND, ENGINE DRIVEN) POWER AND DISTRIBUTION - PART 1: BOX, DISTRIBUTION 13 A 3 WAY, 240 V FOR FIELD ELECTRICAL POWER DISTRIBUTION SYSTEMS INCORPORATING CECC 75201.007 INPUT CONNECTOR |
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| BS 6312-2.2:1997 | Connectors for analogue telecommunication interfaces Sockets for use with plugs specified in BS 6312-1 - Particular requirements for fixed socket-outlets used in permanent wiring installations |
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| BS EN 122140:1994 | Harmonized system of quality assessment for electronic components. Sectional specification: radio frequency coaxial connectors. Series SMC |
| BS 5446-3:2005 | Fire detection and fire alarm devices for dwellings Specification for smoke alarm kits for deaf and hard of hearing people |
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| EN 60068-3-1:2011 | Environmental testing - Part 3-1: Supporting documentation and guidance - Cold and dry heat tests |
| IEC 60068-1:2013 | Environmental testing - Part 1: General and guidance |
| IEC 60068-5-2:1990 | Environmental testing - Part 5-2: Guide to drafting of test methods - Terms and definitions |
| IEC 60068-3-1:2011 | Environmental testing - Part 3-1: Supporting documentation and guidance - Cold and dry heat tests |
| EN 60068-1:2014 | Environmental testing - Part 1: General and guidance |
| EN 60068-3-5:2002 | Environmental testing - Part 3-5: Supporting documentation and guidance - Confirmation of the performance of temperature chambers |
| EN 60068-3-7:2002 | Environmental testing - Part 3-7: Supporting documentation and guidance - Measurements in temperature chambers for tests A and B (with load) |
| IEC 60068-3-5:2001 | Environmental testing - Part 3-5: Supporting documentation and guidance - Confirmation of the performance of temperature chambers |
| IEC 60068-2-14:2009 | Environmental testing - Part 2-14: Tests - Test N: Change of temperature |
| IEC 60068-3-7:2001 | Environmental testing - Part 3-7: Supporting documentation and guidance - Measurements in temperature chambers for tests A and B (with load) |
| EN 60068-2-14:2009 | Environmental testing - Part 2-14: Tests - Test N: Change of temperature |
| EN 60068-5-2:1999 | Environmental testing - Part 5: Guide to drafting of test methods - Terms and definitions |
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