BS EN 62606:2013+A1:2017:2018 Edition
$215.11
General requirements for arc fault detection devices
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 192 |
This International Standard applies to arc fault detection devices (AFDDs) for household and similar uses, intended to be used in a.c. circuits, for rated voltages not exceeding 440 V a.c, with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 63 A.
NOTE 1 In the USA, Arc Fault Circuit Interrupters (AFCI) are considered similar to AFDDs.
An AFDD is designed by the manufacturer:
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either as a single device having opening means able to open the protected circuit in specified conditions; or
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as a single device integrating a protective device; or
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as a separate unit, according to Annex D assembled on site with a declared protective device.
The integrated protection device is either a circuit-breaker in accordance with IEC 60898-1 or an RCD in accordance with IEC 61008-1, IEC 61009-1 or IEC 62423.
These devices are intended to mitigate the risk of fire in a final circuit of a fixed installation due to the effect of arc fault currents that pose a risk of fire ignition under certain conditions if the arcing persists.
Protection against fire ignition due to overvoltage due to a broken neutral within a three phase installation to be included in this type of equipment as an additional option is under consideration in 9.22.
NOTE 2 Tracking current leads to arcing and therefore may ignite fire.
This International Standard applies to devices performing simultaneously the detection and discrimination of arcing current with regards to fire hazards and defines operating criteria under specified conditions for the opening of the circuit when the arcing current exceeds the limit values given in this standard.
AFDDs complying with this standard, with the exception of those with an uninterrupted neutral, are suitable for use in IT systems.
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AFDDs energised from batteries or a circuit other than the protected circuit are not covered by this standard.
AFDDs provide isolation, they are intended to be operated by uninstructed persons and do not require maintenance.
Particular requirements may be necessary for:
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AFDDs incorporated in or intended only for association with plugs and socket-outlets or with appliance couplers for household or similar general purposes;
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AFDDs intended to be used at frequencies other than 50 Hz or 60 Hz.
NOTE 3 For AFDDs incorporated in, or intended only for socket-outlets the requirements of this standard can be used, as far as applicable, in conjunction with the requirements of IEC 60884-1 or the national requirements of the country where the product is placed on the market.
NOTE 4 In the UK, the plug part and the socket-outlet part(s) need not comply with any IEC 60884-1 requirements. In the UK, the plug part shall comply with BS 1363-1 and the socket-outlet part(s) shall comply with BS 1363-2.
Special precautions (e.g. surge protective devices) may be necessary when excessive overvoltages are likely to occur on the supply side.
The requirements of this standard apply for standard conditions of temperature and environment. They are applicable to AFDDs intended for use in an environment with pollution degree 2. Additional requirements may be necessary for devices used in locations having more severe environmental conditions.
NOTE 5 AFDD for d.c. applications are under consideration.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 33 | English CONTENTS |
| 40 | INTRODUCTION |
| 41 | 1 Scope |
| 42 | 2 Normative references |
| 43 | 3 Terms and definitions |
| 46 | 4 Classification 4.1 According to the method of construction 4.2 According to the method of mounting and connection 4.3 According to the number of poles and current paths 4.4 AFDD providing monitoring information 5 Characteristics of AFDDs 5.1 Summary of characteristics and conditions to mitigate the risk of fire |
| 47 | 5.2 Rated quantities and other characteristics 5.2.1 Rated voltage 5.2.2 Rated current (In) 5.2.3 Rated frequency 5.2.4 Rated making and breaking capacity (Im) |
| 48 | 5.2.5 Rated making and breaking capacity on one pole (Im1) 5.3 Standard and preferred values 5.3.1 Preferred values of rated voltage (Un) 5.3.2 Preferred values of rated current (In) 5.3.3 Preferred values of rated frequency 5.3.4 Minimum value of the rated making and breaking capacity (Im) 5.3.5 Minimum value of the rated making and breaking capacity on one pole (Im1) 5.3.6 Standard and preferred values of the rated conditional short-circuit current (Inc) and standard and preferred values of the rated conditional short circuit current for one pole (Inc1) |
| 49 | 5.3.7 Limiting values of operating criteria for AFDDs for low and high arc currents Tables Table 1 โ Limit values of break time for Un = 230 V AFDDs Table 2 โ Limit values of break time for Un = 120 V AFDDs Table 3 โ Maximum allowed number of arcing half-cycles within 0,5 sfor Un 230 V AFDDs and Un = 120 V AFDDs |
| 50 | 5.4 Standard value of rated impulse withstand voltage (Uimp) 5.5 Coordination with short-circuit protective devices (SCPDs) 5.5.1 General 5.5.2 Rated conditional short-circuit current (Inc) and rated conditional short-circuit on one pole (Inc1) 5.5.3 Operating characteristics of opening means for AFDDs according to 4.1.1 Table 4 โ Rated impulse withstand voltage as a function of the nominal voltage of the installation |
| 51 | 6 Marking and other product information 6.1 Marking Table 5 โ Marking and position of marking |
| 53 | 6.2 Additional marking for AFDDs according to 4.1.1 6.2.1 Marking of AFDDs 6.2.2 Instructions for wiring and operation |
| 54 | 7 Standard conditions for operation in service and for installation 7.1 Standard conditions 7.2 Conditions of installation 7.3 Pollution degree Table 6 โ Standard conditions for operation in service |
| 55 | 8 Requirements for construction and operation 8.1 General 8.2 Mechanical design 8.2.1 General |
| 56 | 8.2.2 Mechanism |
| 57 | 8.2.3 Clearances and creepage distances (see Annex B) |
| 58 | Table 7 โ Minimum clearances and creepage distances (1 of 2) |
| 60 | 8.2.4 Screws, current-carrying parts and connections 8.2.5 Terminals for external conductors |
| 61 | Table 8 โ Connectable cross-sections of copper conductors for screw-type terminals |
| 62 | 8.3 Protection against electric shock |
| 63 | 8.4 Dielectric properties and isolating capability 8.5 Temperature rise 8.5.1 Temperature-rise limits |
| 64 | 8.5.2 Ambient air temperature 8.6 Operating characteristics 8.6.1 Operating characteristics of the protective device part 8.6.2 Operating characteristics Table 9 โ Temperature-rise values |
| 65 | 8.7 Mechanical and electrical endurance 8.8 Performance at short-circuits currents 8.9 Resistance to mechanical shock and impact 8.10 Resistance to heat 8.11 Resistance to abnormal heat and to fire 8.12 Behaviour of AFDDs in case of overcurrents in the main circuit |
| 66 | 8.13 Behaviour of AFDDs in case of current surges caused by impulse voltages 8.14 Reliability 8.15 Electromagnetic compatibility (EMC) 8.16 Masking test for correct operation behaviour in presence of various appliances connected to the load side 8.17 Performance of the AFD test device |
| 67 | 9 Testing procedure 9.1 General 9.1.1 General testing procedure for the different type of AFDDs 9.1.2 The characteristics of AFDDs are checked by means of type tests |
| 68 | 9.1.3 For certification purposes, type tests are carried out in test sequences. 9.1.4 Routine tests to be carried out by the manufacturer on each device 9.2 Test conditions Table 10 โ List of type tests |
| 69 | 9.3 Test of indelibility of marking Table 11 โ Test copper conductors corresponding to the rated currents |
| 70 | 9.4 Test of reliability of screws, current-carrying parts and connections Table 12 โ Screw thread diameters and applied torques |
| 71 | 9.5 Test of reliability of terminals for external conductors Table 13 โ Pulling forces |
| 72 | 9.6 Verification of protection against electric shock |
| 73 | 9.7 Test of dielectric properties 9.7.1 General 9.7.2 Resistance to humidity 9.7.3 Insulation resistance of the main circuit |
| 74 | 9.7.4 Dielectric strength of the main circuit |
| 75 | 9.7.5 Insulation resistance and dielectric strength of auxiliary circuits 9.7.6 Capability of control circuits connected to the main circuit in respect of withstanding high d.c. voltages due to insulation measurements Table 14 โ Test voltage of auxiliary circuits |
| 76 | 9.7.7 Verification of impulse withstand voltages (across clearances and across solid insulation) and of leakage current across open contacts |
| 77 | Table 15 โ Test voltage for verification of impulse withstand voltage |
| 78 | Table 16 โ Test voltage for verifying the suitability for isolation, referred to the rated impulse withstand voltage of the AFDD and the altitude where the test is carried out |
| 79 | 9.8 Test of temperature-rise 9.8.1 Ambient air temperature |
| 80 | 9.8.2 Test procedure 9.8.3 Measurement of the temperature of parts 9.8.4 Temperature-rise of a part 9.9 Verification of the operating characteristics 9.9.1 General 9.9.2 Series arc fault tests |
| 83 | 9.9.3 Parallel arc fault tests |
| 85 | 9.9.4 Masking test, verification of correct operation |
| 86 | 9.9.5 Unwanted tripping test |
| 87 | 9.10 Verification of mechanical and electrical endurance 9.10.1 General test conditions |
| 88 | 9.10.2 Test procedure 9.10.3 Condition of the AFDD after test 9.11 Verification of the behaviour of the AFDD under short-circuit conditions 9.11.1 General |
| 89 | 9.11.2 Short-circuit tests for AFDDs according to 4.1.1 |
| 90 | Table 17 โ Tests to be made to verify the behaviour of AFDDsunder short-circuit conditions |
| 91 | Table 18 โ Minimum values of l2t and lp |
| 92 | Table 19 โ Power factors for short-circuit tests |
| 97 | 9.12 Verification of resistance to mechanical shock and impact 9.12.1 Mechanical shock 9.12.2 Mechanical impact |
| 100 | 9.13 Test of resistance to heat |
| 101 | 9.14 Test of resistance to abnormal heat and to fire |
| 102 | 9.15 Verification of the trip-free mechanism 9.15.1 General test conditions 9.15.2 Test procedure 9.16 Test of resistance to rusting 9.17 Verification of limiting values of the non-operating current under overcurrent conditions |
| 103 | 9.18 Verification of behaviour of AFDDs in case of current surges caused by impulse voltages 9.18.1 General 9.18.2 Verification of behaviour at surge currents up to 3 000 A (8/20 ฮผs surge current test) 9.19 Verification of reliability 9.19.1 General |
| 104 | 9.19.2 Climatic test |
| 105 | 9.19.3 Test with temperature of 40 ยฐC |
| 106 | 9.20 Verification of ageing of electronic components 9.21 Electromagnetic compatibility (EMC) 9.21.1 General 9.21.2 EMC tests covered by other clauses of the present standard 9.21.3 EMC tests to be performed Table 20 โ Tests already covered in this standard |
| 107 | Table 21 โ Tests to be applied for EMC |
| 108 | 9.21.4 AFDDs Performance criteria |
| 109 | 9.22 Verification of protection due to overvoltage due to a broken neutral in a three phase system Figures Figure 1 โ Thread forming tapping screw Figure 2 โ Thread cutting tapping screw |
| 110 | Figure 3 โ Standard test finger (9.6) |
| 111 | Figure 4 โ Test circuit for series arc fault tests Figure 5 โ Arc generator Figure 6 โ Test circuit for parallel arc fault tests Figure 7 โ Test circuit for parallel arc cable cutting test |
| 112 | Figure 8 โ Test apparatus Figure 9 โ Test for verification of correct operation in case of parallel arc to ground Figure 10 โ Test circuit for masking tests (inhibition and disturbing loads) |
| 113 | Figure 11 โ Test configuration for masking tests Figure 12 โ EMI filter 1 for masking tests |
| 114 | Figure 13 โ EMI filter 2 for masking tests Figure 14 โ EMI filter description installed in Figure 13 Figure 15 โ Test circuit for masking tests with line impedance |
| 115 | Figure 16 โ Cross talk test Figure 17 โ Controlled current test circuit |
| 116 | Figure 18 โ Controlled current with delay angle 45 ยฐ, 90 ยฐ and 135 ยฐ |
| 117 | Figure 19 โ Short circuit test |
| 118 | Figure 20 โ Typical diagram for short circuit tests ((9.11.2.4c) |
| 119 | Figure 21 โ Detail of impedance Z, Z1 and Z2 Figure 22 โ Example of calibration record for short-circuit test (9.11.2.2 j) |
| 120 | Figure 23 โ Mechanical shock test apparatus (9.12.1) |
| 121 | Figure 24 โ Mechanical impact test apparatus (9.12.2.2) |
| 122 | Figure 25 โ Striking element for pendulum impact test apparatus (9.12.2.2) |
| 123 | Figure 26 โ Mounting support for sample for mechanical impact test (9.12.2.2) |
| 124 | Figure 27 โ Example of mounting of unenclosed AFDDfor mechanical impact test (9.12.2.2) |
| 125 | Figure 28 โ Example of mounting of panel mounting type AFDDfor the mechanical impact test (9.12.2.2) |
| 126 | Figure 29 โ Application of force for mechanical testof rail mounted AFDD (9.12.2.3) Figure 30 โ Ball-pressure test apparatus (9.13.2) |
| 127 | Figure 31 โ Surge current impulse 8/20 (s Figure 32 โ Test circuit for the surge current test at AFDDs |
| 128 | Figure 33 โ Stabilizing period for reliability test (9.19.2.3) |
| 129 | Figure 34 โ Reliability test cycle (9.19.2.3) |
| 130 | Figure 35 โ Example for test circuit for verification of ageingof electronic components (9.20) Figure 36 โ Preparation of the cable specimens (9.9.2.6) Figure 37 โ Example of arc voltage and current waveform obtained with cable specimen |
| 131 | Annex A (normative) Test sequence and number of samples to be submitted for certification purposes |
| 132 | Table A.1 โ Test sequences for AFDDs classified according to 4.1.1 |
| 133 | Table A.2 โ Test sequences for AFDDs classified according to 4.1.2 |
| 134 | Table A.3 โ Test sequences for AFDDs classified according to 4.1.3 |
| 135 | Table A.4 โ Number of samples for full test procedure |
| 137 | Table A.5 โ Number of samples for simplified test procedure |
| 138 | Annex B (normative) Determination of clearances and creepage distances |
| 143 | Annex C (normative) Arrangement for the detection of the emission ofionized gases during short-circuit tests |
| 144 | Figure C.1 โ Test arrangement |
| 145 | Figure C.2 โ Grid Figure C.3 โ Grid circuit |
| 146 | Annex D (normative) Additional requirements and tests for AFDDs accordingto the classification 4.1.3 designed to be assembled on site together with a main protective device (circuit-breaker or RCCB or RCBO) |
| 150 | Annex E (normative) Routine tests |
| 151 | Annex F (informative) Description of the shaker arc test in 9.10.2 Figure F.1 โ Gap Measurement Figure F.2 โ Shaker arc test table with Loose Terminals |
| 152 | Figure F.3 โ AFDD connected to the shaker arc table during test |
| 153 | Annex IA (informative) Methods of determination of short-circuit power-factor |
| 155 | Annex IB (informative) Examples of terminal designs Figure IB.1 โ Examples of pillar terminals |
| 156 | Figure IB.2 โ Examples of screw terminals and stud terminals |
| 157 | Figure IB.3 โ Examples of saddle terminals Figure IB.4 โ Examples of lug terminals |
| 158 | Annex IC (informative) Correspondence between ISO and AWG copper conductors |
| 159 | Annex ID (informative) Follow-up testing program for AFDDs Table ID.1 โ Test sequences during follow-up inspections |
| 162 | Table ID.2 โ Number of samples to be tested |
| 163 | Annex IE (informative) SCPDs for short-circuit tests Table IE.1 โ Indication of silver wire diameters as a function of rated currents and short-circuit currents |
| 164 | Figure IE-1 โ Test apparatus for the verification of the minimum I2t and Ip values to be withstood by the AFDD |
| 165 | Annex J (normative) Particular requirements for AFDDs with screwless type terminals for external copper conductors |
| 167 | Table J.1 โ Connectable conductors |
| 168 | Table J.2 โ Cross-sections of copper conductorsconnectable to screwless-type terminals |
| 169 | Table J.3 โ Pull forces |
| 170 | Figure J.1 โ Connecting samples |
| 172 | Figure J.2 โ Examples of screwless-type terminals |
| 173 | Annex K (normative) Particular requirements for AFDDs with flat quick-connect terminations |
| 174 | Table K.1 โ Informative table on colour code of female connectors in relationship with the cross section of the conductor |
| 175 | Table K.2 โ Overload test forces |
| 176 | Figure K.1 โ Example of position of the thermocouple for measurement of the temperature-rise Table K.3 โ Dimensions of tabs |
| 177 | Figure K.2 โ Dimensions of male tabs |
| 178 | Figure K.3 โ Dimensions of round dimple detents (see Figure K.2) Figure K.4 โ Dimensions of rectangular dimple detents (see Figure K.2) Figure K.5 โ Dimensions of hole detents |
| 179 | Figure K.6 โ Dimensions of female connectors Table K.4 โ Dimensions of female connectors |
| 180 | Annex L (normative) Specific requirements for AFDDs with screw-type terminals for external untreated aluminium conductors and with aluminium screw-type terminals for use with copper or with aluminium conductors |
| 181 | Table L.1 โ Marking for terminals |
| 182 | Table L.2 โ Connectable cross-sections of aluminium conductors for screw-type terminals |
| 183 | Table L.3 โ List of tests according to the material of conductors and terminals Table L.4 โ Connectable conductors and their theoretical diameters |
| 184 | Table L.5 โ Cross sections (S) of aluminium test conductors corresponding to the rated currents |
| 185 | Table L.6 โ Test conductor length Table L.7 โ Equalizer and busbar dimensions |
| 187 | Table L.8 โ Test current as a function of rated current Table L.9 โ Example of calculation for determining the average temperature deviation D |
| 188 | Figure L.1 โ General arrangement for the test Figure L.2 โ Example for the use of the terminals in the AFDD |
| 189 | Figure L.3 โ Example for the use of the terminals in the AFDD Figure L.4 โ Example for the use of the terminals in the AFDD Figure L.5 โ Example for the use of the terminals in the AFDD Figure L.6 โ Example for the use of the terminals in the AFDD |
| 190 | Bibliography |
