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BS EN IEC 62271-214:2024 High-voltage switchgear and controlgear - Internal arc classification for AC metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV, 2025
- undefined
- Annex ZA (normative)Normative references to international publicationswith their corresponding European publications [Go to Page]
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General terms and definitions
- 3.8 Index of definitions
- 4 Normal and special service conditions
- 5 Ratings [Go to Page]
- 5.1 General
- 5.2 Rated voltage (Ur) [Go to Page]
- 5.2.1 General
- 5.3 Rated insulation level (Ud, Up, Us)
- 5.4 Rated frequency (fr)
- 5.101 Ratings of the internal arc classification (IAC) [Go to Page]
- 5.101.1 General
- 5.101.2 Rated approach distance (DAP)
- 5.101.3 Rated arc fault currents (IA, IAe)
- 5.101.4 Rated arc fault duration (tA, tAe)
- 6 Design and construction [Go to Page]
- 6.11 Nameplate [Go to Page]
- 6.11.2 Application
- 6.101 Internal arc fault
- 6.102 Enclosure
- Table 1 – Nameplate information
- 7 Type tests [Go to Page]
- 7.1 General [Go to Page]
- 7.1.1 Basics
- Figure 1 – Examples of enclosures and compartment(s) in different arrangements [Go to Page]
- [Go to Page]
- 7.1.2 Information for identification of test object
- 7.1.3 Information to be included in type-test reports
- 7.101 Internal arc type test [Go to Page]
- 7.101.1 General
- 7.101.2 Test conditions
- 7.101.3 Arrangement of the equipment
- Figure 2 – Test arrangement for pole-mounted switchgear and controlgear [Go to Page]
- [Go to Page]
- 7.101.4 Indicators (for assessing the thermal effects of the gases)
- 7.101.5 Arrangement of indicators
- Figure 3 – Horizontal indicator [Go to Page]
- [Go to Page]
- 7.101.6 Test parameters
- 7.101.7 Test procedure
- Table 2 – Parameters for internal arc fault test according to enclosure and compartment construction
- Figure 4 – Flow-chart for the choice of arc initiation depending on the construction [Go to Page]
- [Go to Page]
- 7.101.8 Criteria to pass the test
- 7.101.9 Transferability of the test results
- 8 Routine tests
- 9 Guide to the selection of switchgear and controlgear (informative) [Go to Page]
- 9.1 General
- 9.101 Internal arc fault [Go to Page]
- 9.101.1 General
- 9.101.2 Causes and preventive measures
- 9.101.3 Supplementary protective measures
- Table 3 – Locations, causes and examples of measures to decrease the probability of internal arc faults [Go to Page]
- [Go to Page]
- 9.101.4 Considerations for the selection and installation
- 9.101.5 Internal arc test
- 9.101.6 IAC designation
- 10 Information to be given with enquiries, tenders and orders (informative) [Go to Page]
- 10.1 General
- 11 Transport, storage, installation, operation instruction and maintenance [Go to Page]
- 11.1 General
- Table 4 – Single-phase-to-earth arc fault current depending on the network neutral earthing [Go to Page]
- 11.2 Conditions during transport, storage and installation
- 11.3 Installation [Go to Page]
- 11.3.1 General
- 11.101 Maintenance
- 12 Safety [Go to Page]
- 12.1 General
- 13 Influence of the product on the environment
- Annex A (normative) Identification of the test objects [Go to Page]
- A.1 General
- A.2 Data
- A.3 Drawings
- Bibliography [Go to Page]
