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eLibrary > PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear - Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to conden >

PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear - Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to conden, 2019

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PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear - Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to conden, 2019

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English [Go to Page]
CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Definition of indoor service conditions under condensation and pollution
5 Classification of enclosed switchgear and controlgear
6 Test procedure for classification
Figures [Go to Page]
Figure 1 – Flow chart for classification testing procedure
7 Test facilities and associated requirements [Go to Page]
7.1 Climatic test room
7.2 Measurement and control requirements
7.3 Energizing facilities
7.4 Information to be included in the test report
8 Arrangement of the equipment for test
9 Ageing test [Go to Page]
9.1 Level 1 ageing test
9.2 Level 2 ageing test
Figure 2 – Climatic conditions for ageing test for level 1 and electrical assessment
10 Electrical assessment after ageing test [Go to Page]
10.1 General
10.2 Criteria to pass the tests
Figure 3 – Power-frequency voltage test sequences with high humidity after ageing test
Annexes [Go to Page]
Annex A (informative) Climatic test room
Figure A.1 – Climatic test room
Annex B (informative) Typical indoor environments [Go to Page]
B.1 General
B.2 Pollution
Tables [Go to Page]
Table B.1 – Examples of typical environments (IEC TS 60815-1, IEC 60721-3-3)
Table B.2 – Concentrations of some of the most important pollutants in different types of environments (Annex B of ISO 9223:2012 [8], IEC 60721-3-3)
Table B.3 – Deposits of some of the most important pollutants in different types of environments (Annex B of ISO 9223:2012 [8], IEC TS 60815-1, IEC 60721-3-3, IEC 60721-2-5[7])
Annex C (informative) Typical precautions to improve indoor operating conditions [Go to Page]
C.1 General
C.2 Precautions for operating room
Table C.1 – Typical precautions to improve indoor operating conditions
Annex D (informative) Mechanical assessment
Annex E (informative) Pollution testing conditions, parameters, and procedure [Go to Page]
E.1 General
E.2 Proposal for new classes
E.3 Testing procedure [Go to Page]
E.3.1 Testing conditions
E.3.2 Testing parameters
E.3.3 Testing procedure
Figure E.1 – Test cycle
Bibliography [Go to Page]

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PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear - Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to conden, 2019

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