BSI 19/30391672 DC:2019 Edition
$13.70
BS EN 60947-9-2. Low-voltage switchgear and controlgear. Active arc-fault mitigation systems – Part 9-2. Optical-based internal arc-detection and mitigation devices
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 73 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 30391672-NC (1) |
| 3 | 121A_279e_CD |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope |
| 12 | 2 Normative references |
| 13 | 3 Terms and definitions |
| 15 | 4 Classification 4.1 According to the IACD type 4.1.1 Stand-alone type IACD 4.1.2 Multifunction-type IACD |
| 16 | 4.1.3 Combined-type IACD |
| 17 | 4.2 According to the combination of sensors 4.2.1 Optical sensors-only type 4.2.2 Optical sensors and secondary sensors type 5 Characteristics 5.1 Maximum arc-fault detection time (respectively arc-fault mitigation time) 5.2 Minimum arc-fault detection current value capability 5.3 Maximum prospective short-circuit current value |
| 18 | 5.4 Nature of information 5.5 Markings |
| 19 | 5.6 Instructions for installation, operation, maintenance, decommissioning and dismantling |
| 20 | 6 Normal service, mounting and transport conditions 7 Constructional and performance requirements 7.1 Constructional requirements 7.1.1 General 7.1.2 Creepages and clearances 7.1.3 Material requirement 7.1.3.1 General 7.1.3.2 Glow-wire testing |
| 21 | 7.1.3.3 Test based on flammability category 7.2 Performance requirements 7.2.1 General 7.2.2 Operating conditions 7.2.3 Temperature-rise 7.3 Electromagnetic compatibility (EMC) 8 Tests 8.1 General – Kind of tests 8.2 Type tests 8.2.1 General |
| 23 | 8.2.2 Guidance on sample selection |
| 25 | 8.2.3 Light-immunity tests 8.2.3.1 General 8.2.3.2 IACD without secondary sensor(s) |
| 26 | 8.2.3.3 IACD with secondary sensor(s) 8.2.3.3.1 General 8.2.3.3.2 Current threshold considerations 8.2.3.3.3 Test method 8.2.4 Detection and mitigation tests 8.2.4.1 General 8.2.4.2 Measuring- and data tracking system |
| 27 | 8.2.4.3 Detection tests under reduced energy arcs 8.2.4.3.1 General |
| 29 | 8.2.4.3.2 Test conditions 8.2.4.3.3 Test result criteria 8.2.4.4 Detection tests under high-energy arcs 8.2.4.4.1 General 8.2.4.4.2 Methods of test |
| 31 | 8.2.4.4.3 Test conditions |
| 32 | 8.2.4.4.4 Test result criteria 8.2.5 Dielectric properties 8.2.6 EMC tests 8.2.6.1 General 8.2.6.2 Electromagnetic disturbances immunity tests 8.2.6.2.1 General |
| 33 | 8.2.6.2.2 Electrostatic discharge 8.2.6.2.3 Radiated radio-frequency electromagnetic fields 8.2.6.2.4 Electrical fast transients/bursts (EFT/B) 8.2.6.2.5 Surges 8.2.6.2.6 Conducted disturbances induced by radio-frequency fields 8.2.6.2.7 Power frequency magnetic fields 8.2.6.2.8 Voltage dips and interruptions 8.2.6.3 Electromagnetic disturbances emission tests 8.2.6.3.1 General 8.2.7 Environmental tests 8.2.7.1 General 8.2.7.2 Damp heat test |
| 34 | 8.2.7.3 Vibration test 8.2.7.4 Shock test 8.2.8 Functional tests |
| 35 | 8.3 Routine tests 8.3.1 General 8.3.2 Functional requirements 8.3.3 Safety requirements |
| 36 | 9 Test report |
| 38 | Annex A (normative) Detection tests under reduced-energy arcs A.1 General |
| 39 | A.2 Electrical test circuit, electrodes and arc parameters A.2.1 Electrical test circuit A.2.2 Calibration of test circuit A.2.3 Electrodes A.2.4 Ignition wire A.2.5 Arc electrical values |
| 40 | A.2.6 Environmental conditions A.2.7 Conditioning of test objects A.3 Preparation and maintenance A.3.1 Preparation and conditioning of the test box |
| 41 | A.3.2 Care and maintenance of the test equipment A.4 Optical sensors conditioning and positioning |
| 43 | A.5 Instructions for IACD maintenance during test sequence |
| 44 | Annex B Annex B (normative) Detection and mitigation tests for high-energy arcs B.1 General B.2 Test specimen, electrical test circuit, arc parameters B.2.1 Test specimen (stand-alone or multifunction-type IACD) |
| 45 | B.2.2 Test specimen (combined-type IACD) |
| 47 | B.2.3 Electrical test circuit B.2.4 IACD configuration B.2.5 Arc parameters B.3 Environmental conditions |
| 48 | B.4 Optical sensors conditioning and positioning |
| 49 | B.5 Instructions for maintenance |
| 50 | Annex C Annex C (normative) Arcing current parameters C.1 Preamble C.2 Terms and definition C.3 The different phases of an arc C.4 Detection of arc-initiation (t0) |
| 52 | C.5 Arc-continuity C.6 Detection of arc-extinction C.6.1 General C.6.2 Quenching device C.6.3 Current-switching device C.7 Measurement means C.8 Waveform consistency |
| 54 | Annex D Annex D (informative) Optical measurements for IACD D.1 Introduction D.1.1 General D.1.2 Photometry – The appearance point of view D.1.3 Radiometry – The technical point of view D.2 The different optical units D.2.1 General |
| 55 | D.2.2 The luminosity function |
| 56 | D.2.3 How to use the luminous function D.2.3.1 Case 1: single wavelength D.2.3.2 Case 2: wide spectrum |
| 57 | D.2.3.3 Case 3: internal arc-fault |
| 58 | D.3 Light measurement D.3.1 Use of a luxmeter D.3.2 Use of a spectrometer |
| 59 | D.3.3 Spectrometer operation |
| 60 | D.3.4 Calibration |
| 61 | D.3.5 Absolute irradiance calibration |
| 62 | D.3.6 Luxmeter operation D.3.7 Luxmeter calibration |
| 63 | D.3.8 Luxmeter to spectrometer comparison |
| 64 | D.4 Measuring the sensitivity and bandwidth of the optical sensors in an IACD D.4.1 General |
| 65 | D.4.2 Measurement method (tentative) |
| 66 | D.4.3 Measured values |
| 68 | Annex E (normative) Ambient light immunity tests E.1 General E.2 Test method E.2.1 Principle |
| 69 | E.2.2 IACD setup E.2.3 Environmental conditions E.2.4 Requirements for light-source E.2.5 Requirements for luxmeter |
| 70 | E.2.6 Calibration and testing method |
| 71 | E.2.7 IACD installation and setup E.2.8 Test report |
| 72 | Bibliography |
