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BS EN IEC 60587:2022

BS EN IEC 60587:2022

$102.76

Electrical insulating materials used under severe ambient conditions. Test methods for evaluating resistance to tracking and erosion

Published By Publication Date Number of Pages
BSI 2022 22
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This standard describes two test methods for the evaluation of electrical insulating materials for use under severe ambient conditions at power frequencies (45 Hz to 65 Hz) by the evaluation of the resistance to tracking and erosion, using a liquid contaminant and inclined plane specimens. The two methods are: – Method 1: test at constant voltage, – Method 2: test at stepwise increased voltage. Method 1 is the most widely used method as there is less need for continual inspection. The test conditions are designed to accelerate the production of the effects, but do not reproduce all the conditions encountered in service.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
5 English
CONTENTS
6 FOREWORD
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Test specimens
4.1 Dimensions
4.2 Preparation
Figures
Figure 1 – Test specimen with boreholes for mounting of electrodes
10 5 Apparatus
5.1 General
5.2 Electrical apparatus
Table 1 – Specimen preparation sequence
11 5.3 Specimen assembly
5.3.1 General
Figure 2 – Schematic diagram of circuit
Figure 3 – Example of typical circuit for an overcurrent delay relay (ODR)
12 5.3.2 Electrodes
Figure 4 – Schematic diagram of specimen assembly
13 5.3.3 Filter-paper stack
Figure 5 – Top electrode
Figure 6 – Bottom electrode
14 5.3.4 Mounting of the specimen assembly
Figure 7 – Filter-paper
Figure 8 – Schematic diagram of specimen assembly
15 Figure 9 – Schematic diagram of specimen support
16 5.4 Contaminant
5.5 Timing device
5.6 Depth gauge
Figure 10 – Example of specimen support
17 5.7 Ventilation
6 Test procedure
6.1 General
6.2 Criterion A – evaluation of the current (preferred)
6.3 Criterion B – evaluation of the length of the track
6.4 Method 1 – test at constant voltage
18 6.5 Method 2 – test at stepwise increased voltage
Table 2 – Test parameters
19 6.6 Classification of the materials tested according to method 1
6.7 Classification of the materials tested according to method 2
20 7 Test report
21 Bibliography

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BS EN IEC 60587:2022
$102.76