ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 11: EFFECTIVENESS OF RESIDUAL CURRENT MONITORS (RCMS) TYPE A AND TYPE B IN TT, TN AND IT SYSTEMS
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Operating test
4.2 Non-operating test
4.3 Test of actuating time
4.4 Operating conditions
4.5 Prevention of danger by fault voltages exceeding
50 V a.c. or 120 V d.c. in the monitored system
during measurement
4.6 Prevention of danger caused by overvoltages when
the system is connected
4.7 Electromagnetic compatibility (EMC)
5 Marking and operating instructions
5.1 Markings
5.2 Operating instructions
5.2.1 Information
5.2.2 Warnings
6 Tests
6.1 General
6.2 Operating uncertainty
Annex A (informative) - Differences between RCMs and RCDs
Annex B (informative) - Safety aspects, test methods and applications
Bibliography
Describes the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 85 |
