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BS EN IEC 62819:2023

BS EN IEC 62819:2023

$198.66

Live working. Eye, face and head protectors against the effects of electric arc. Performance requirements and test methods

Published By Publication Date Number of Pages
BSI 2023 54
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This part of IEC 63275-1 gives a test method to evaluate gate threshold voltage shift of silicon carbide (SiC) power metal-oxide-semiconductor field-effect transistors (MOSFETs) using room temperature readout after applying continuous positive gate-source voltage stress at elevated temperature. The proposed method accepts a certain amount of recovery by allowing large delay times between stress and measurement (up to 10h).

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
2 Normative references
13 3 Terms, definitions and symbols
3.1 Terms and definitions
20 3.2 Abbreviated terms, symbols and units
4 Requirements
4.1 General
4.2 Design requirements
21 4.3 Mechanical and optical requirements
4.3.1 Mechanical and optical requirements for a device or the part of a device covering eyes or face
22 Tables
Table 1 – LT classes
24 Figures
Figure 1 – Reference points
25 4.3.2 Mechanical requirements for a device or a part of a device other than those protecting the eyes or face
4.4 Arc thermal protection requirements
4.4.1 General
26 4.4.2 General requirements for protective devices or combination of devices
4.4.3 Additional requirements for face shields
4.4.4 Additional requirements for helmets
4.4.5 Protection requirement of protectors protecting against an electric arc
27 4.4.6 Other requirements for textile components
4.4.7 Performance verification for exposed and not exposed accessories
28 4.5 Marking
29 4.6 Instructions for use
31 5 Test procedures
5.1 General
5.2 Test against the effects of an electric arc
5.2.1 Type tests
5.2.2 Type testing method for the determination of the arc rating values ATPV, EBT and/or ELIM
34 Figure 2 – Schematic view of test set-up, indicating vertical and horizontal positioning of test head on top of mannequin with respect to arc electrodes for open-arc test
35 Figure 3 – Test head with four calorimetric sensors for open-arc test
37 5.2.3 Type testing method for the determination of the arc protection class
38 Figure 4 – Test set-up: Schematic view of test set-up, indicating vertical and horizontal positioning of test head on top of torso with respect to arc electrodes for box-test
39 Figure 5 – Test head with four calorimetric sensors for the box-test
40 5.2.4 Testing of protectors intended to provide 360° protection
41 5.2.5 Additional tests for face shields allowing various wearing distances to the face or different wearing distances associated with different helmets
Table 2 – Minimum of specimens mounted on a test head exposed to an arc from the side and/or the back
42 5.3 Test report
5.4 Marking
5.4.1 Visual inspection
5.4.2 Durability of marking
5.5 Instructions for use
6 Method of assessment of defects and verification of performance applicable to protectors having completed the production phase
6.1 General
43 6.2 Completeness and correctness of assembly
6.3 Product finishing
6.4 Functioning
6.5 Optical properties
6.6 Alternative means to test protectors against the effects of an electric arc when the production phase has been completed
6.7 Packaging and labelling
7 Modifications
44 Annexes
Annex A (normative) Symbol: Protection against the thermal effect of the electric arc(IEC 60417-6353:2016-02)
45 Annex B (informative) Marking examples
46 Table B.1 – Protective performance information
47 Annex C (informative) Use and maintenance
C.1 Use
C.2 Maintenance
48 Annex D (normative) Chronological order of type tests
Table D.1 – List of type tests
50 Annex E (normative) Classification of defects
Table E.1 – Classification of defects and associated requirements and tests
51 Annex F (informative) Rationale for the classification of defects
Table F.1 – Justification for the type of defect
52 Bibliography

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BS EN IEC 62819:2023
$198.66