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BS EN 61557-16:2015

BS EN 61557-16:2015

$142.49

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures – Equipment for testing the effectiveness of the protective measures of electrical equipment and/or medical electrical equipment

Published By Publication Date Number of Pages
BSI 2015 24
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This part of IEC 61557 defines performance requirements for test and measurement equipment to determine the effectiveness of the protective measures of electrical measures for electrical equipment and/or medical electrical equipment described in IEC 62353 .

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PDF Pages PDF Title
7 English
CONTENTS
9 INTRODUCTION
10 1 Scope
2 Normative references
11 3 Terms and definitions
12 4 Requirements
4.1 Measurement requirements for measuring equipment
4.1.1 General
4.1.2 Measurement of the resistance of the protective bonding or the protective earth resistance
13 4.1.3 Measurement of insulation resistance
4.1.4 Measurement of protective conductor current and/or equipment leakage current with the alternative method
4.1.5 Measurement of touch current, patient leakage current and applied part leakage current with the alternative method
14 4.1.6 Measurement of protective conductor current and or equipment leakage current with the direct method or differential method (residual method)
4.1.7 Measurement of touch current, patient leakage current and applied part leakage current with the direct method or differential method (residual method)
15 4.2 Construction requirements for testing equipment
4.2.1 Overload capability
4.2.2 Terminals
4.2.3 Sockets for service purposes
4.2.4 Degree of protection
4.2.5 Class of protection
4.2.6 Resistance of protective bonding
4.2.7 Battery control
16 4.2.8 Mechanical requirements
4.2.9 Pollution degree
4.2.10 Safety
4.2.11 Electromagnetic compatibility (EMC)
4.2.12 Accessories
5 Markings and operating instructions
5.1 Markings
17 5.2 Operating instructions
6 Tests
6.1 General
6.2 Operating uncertainty
18 Tables
Table 1 – Determination of operating uncertainty
19 6.3 Variations
6.3.1 Variation due to position
6.3.2 Variation due to supply voltage
6.3.3 Variation due to temperature
6.3.4 Variation due to harmonics
6.3.5 Variations due to external low frequency magnetic field
6.3.6 Variations due to load current
6.3.7 Variations due to touch current caused by common mode voltage (if applicable)
20 6.3.8 Variations due to frequency of measured leakage current with direct method or differential method
6.3.9 Variations due to repeated clamping (if applicable)
6.4 Tests of measuring circuits according to measuring functions
6.5 Test of construction requirements of test and measurement equipment
Table 2 – Compliance tests of measuring circuits according to measuring function
Table 3 – Compliance test of construction requirements of test and measuring equipment
21 Annex A (normative) Measuring circuit MD
A.1 Current measuring circuit MD
A.2 Frequency characteristic of current measuring circuit MD
Figures
Figure A.1 – Example of a current measuring circuit MD
22 Figure A.2 – Example of a frequency characteristic of current measuring circuit MD

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BS EN 61557-16:2015
$142.49