BSI 19/30396999 DC:2019 Edition
$13.70
BS EN IEC 60755-2. General safety requirements for residual current operated protective devices – Part 2. Residual current operated protective devices for DC systems
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 33 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 9 | 1 Scope |
| 10 | 2 Normative references 3 Terms and definitions 3.101 3.102 |
| 11 | 3.103 3.104 3.105 3.106 3.107 3.108 4 Classification 4.10 According to the number of poles and current paths |
| 12 | 4.101 According to the current direction through the poles 4.101.1 Polarised DC-RCD 4.101.2 Non-polarised DC-RCD 5 Characteristics of residual current devices 5.1 Summary of characteristics 5.2 Rated quantities and other characteristics 5.2.10 Operating characteristics 5.2.101 Time-delay DC-RCD 5.3 Standard and preferred values 5.3.1 Preferred values of rated operational voltage (Ue) |
| 13 | 5.3.3 Standard values of rated residual operating direct current (IΔn) 5.3.4 Standard value of residual non-operating current (IΔno) 5.3.5 5.3.6 5.3.7 5.3.7.1 Standard values of maximum break time for non-time delay DC-RCDs 5.3.7.2 Standard values of actuating and non-actuating times for time-delay type residual current devices 5.3.10 Minimum value of the rated making and breaking capacity (Im) 5.3.11 Minimum value of the rated residual making and breaking capacity (IΔm) |
| 14 | 6 Marking and other product information 6.1 Information and marking for DC-RCDs according to 4.15.1 6.2 Information and marking for RCDs according to 4.15.2 and 4.15.3 7 Conditions for operation in service and for installation 7.1 Preferred ranges of application, reference values of influencing quantities/factors and the associated test tolerances 8 Requirements for construction and operation 8.1.2 Mechanism |
| 15 | 8.1.3 Clearance and creepage distances 8.5 Operating characteristics 8.5.1 General 8.5.2 Operation in response to the type of residual current 8.5.3 8.5.3.1 DC-RCDs without time-delay 8.5.3.2 DC-RCDs with time-delay |
| 16 | 8.11 Test device 8.12 Requirements for DC-RCDs in case of loss of supply 8.17 Electromagnetic compatibility (EMC) 8.18 Resistance to temporary overvoltages (TOV) 9 Tests 9.1 General 9.1.1 General test conditions |
| 17 | 9.2 Operating characteristics 9.2.1 General requirements for operating characteristics tests 9.2.101 Test of DC-RCDs 9.2.101.1 General 9.2.101.2 Steady increase of residual current 9.2.101.3 Closing on a residual current 9.2.101.4 Sudden appearance of residual current 9.2.101.5 Residual current higher than 3 IΔn |
| 18 | 9.2.101.6 Tests with load 9.2.101.7 Tests at the temperature limits 9.2.101.8 Additional test for delay type DC-RCDs 9.3 Tests of electrical endurance 9.4 Tests of behaviour of the DC-RCD under short-circuit conditions 9.4.1 General |
| 19 | 9.4.2 Short-circuit tests 9.4.3 Behaviour of the DC-RCD during and after the tests |
| 20 | 9.7 Test of behaviour of DC-RCDs in case of current surges caused by impulse voltages 9.7.1 Current surge test for all DC-RCDs (0,5 μs/100 kHz ring wave test) 9.7.2 Verification of behaviour at surge currents (8/20 μs surge current test) 9.8.1 Climatic test 9.8.2 Test with temperature of 40 C 9.8.3 Verification of ageing of electronic components |
| 21 | 9.9.2 Specific requirements for RCDs for household and similar uses 9.9.101 Specific requirements on ripple immunity 9.9.102 Verification of behaviour during inrush currents |
| 30 | Annex A (informative) Recommended diagram for short-circuit tests |
| 33 | Bibliography |
