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BSI PD IEC TS 62271-304:2019

BSI PD IEC TS 62271-304:2019

$142.49

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 condensation and pollution

Published By Publication Date Number of Pages
BSI 2019 30
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This part of IEC 62271, which is a Technical Specification, applies to indoor enclosed switchgear and controlgear complying with IEC 62271-200 and IEC 62271-201, intended to be used in special service conditions with respect to condensation and pollution deviating from the normal service conditions specified in IEC 62271-1.

The test detailed in this document has been designed primarily to classify the electrical insulation performance of equipment having high-voltage electrical insulation exposed to indoor service conditions, mainly in presence of condensation. The assessment of mechanical components, such as mechanisms, interlocks and enclosure is also considered.

In this document, the term “equipment” is used in accordance with the scope for an “enclosed assembly of switchgear and controlgear” (see IEC 60050-441:2000, 441-12- 02).

PDF Catalog

PDF Pages PDF Title
2 undefined
4 English
CONTENTS
6 FOREWORD
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Definition of indoor service conditions under condensation and pollution
10 5 Classification of enclosed switchgear and controlgear
6 Test procedure for classification
11 Figures
Figure 1 – Flow chart for classification testing procedure
12 7 Test facilities and associated requirements
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
13 8 Arrangement of the equipment for test
9 Ageing test
9.1 Level 1 ageing test
14 9.2 Level 2 ageing test
Figure 2 – Climatic conditions for ageing test for level 1 and electrical assessment
15 10 Electrical assessment after ageing test
10.1 General
16 10.2 Criteria to pass the tests
Figure 3 – Power-frequency voltage test sequences with high humidity after ageing test
17 Annexes
Annex A (informative) Climatic test room
Figure A.1 – Climatic test room
18 Annex B (informative) Typical indoor environments
B.1 General
B.2 Pollution
19 Tables
Table B.1 – Examples of typical environments (IEC TS 60815-1, IEC 60721-3-3)
20 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)
21 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])
22 Annex C (informative) Typical precautions to improve indoor operating conditions
C.1 General
C.2 Precautions for operating room
Table C.1 – Typical precautions to improve indoor operating conditions
23 Annex D (informative) Mechanical assessment
24 Annex E (informative) Pollution testing conditions, parameters, and procedure
E.1 General
E.2 Proposal for new classes
E.3 Testing procedure
E.3.1 Testing conditions
25 E.3.2 Testing parameters
E.3.3 Testing procedure
26 Figure E.1 – Test cycle
28 Bibliography

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BSI PD IEC TS 62271-304:2019
$142.49