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BS EN 61557-14:2013

BS EN 61557-14:2013

$102.76

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 safety of electrical equipment of machinery

Published By Publication Date Number of Pages
BSI 2013 22
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IEC 61557-14:2013 defines special requirements for test and measurement equipment used to determine the electrical safety of electrical equipment of machinery according to IEC 60204-1. IEC 61010 and the existing parts of series IEC 61557 do not cover all safety aspects of testing electrical equipment of machinery. IEC 61557-14 provides additional protection against electric shock for the testing person and bystanders during high-voltage-tests and in case of unintended use of the test equipment. It defines performance requirements for each measuring and testing function to ensure comparable results.

PDF Catalog

PDF Pages PDF Title
7 English
CONTENTS
9 INTRODUCTION
10 1 Scope
2 Normative references
11 3 Terms and definitions
4 Requirements
4.1 General requirements
4.2 Measuring quantities
4.2.1 General
12 4.2.2 Measurement of resistance of protective bonding
4.2.3 Measurement of loop resistance
4.2.4 Measurement of insulation resistance
4.2.5 Testing of the effectiveness of protective measures with RCD
4.2.6 Testing of dielectric strength
Table 1 – Test voltages
13 4.2.7 Measurement of residual voltage
4.2.8 Measurement of leakage current
4.3 Construction requirements for testing equipment
4.3.1 Overload capability
4.3.2 Terminals
4.3.3 Sockets for service purposes
4.3.4 Degree of protection
14 4.3.5 Class of protection
4.3.6 Resistance of protective bonding
4.3.7 Battery control
4.3.8 Mechanical requirements
4.3.9 Pollution degree
4.3.10 Overvoltage and measurement categories
4.3.11 Electromagnetic compatibility (EMC)
4.3.12 Accessories
5 Markings and operating instructions
5.1 Markings
15 5.2 Operating instructions
6 Tests
6.1 General
6.2 Operating uncertainty
16 Table 2 – Determination of operating uncertainty
17 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 phase angle of loop impedance
6.3.5 Variation due to system frequency
6.3.6 Variation due to system voltage
6.3.7 Variation due to harmonics
18 6.3.8 Variation due to d.c. quantities
6.3.9 Variations due to external low frequency magnetic field (if applicable)
6.3.10 Variations due to load current (if applicable)
6.3.11 Variations due to touch current caused by common mode voltage (if applicable)
6.3.12 Variations due to frequency of measured current (if applicable)
6.3.13 Variations due to repeated clamping (if applicable)
6.4 Tests of measuring equipment according to measuring functions
19 6.5 Test of construction requirements of test equipment
Tables
Table 3 – Compliance tests of measuring equipment according to measuring function
Table 4 – Test of construction requirements of test equipment
20 Bibliography

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BS EN 61557-14:2013
$102.76