BSI 20/30409310 DC:2019 Edition
$24.66
BS EN IEC 62991. Particular requirements for Source-Switching Equipment (SSE)
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 155 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 11 | FOREWORD |
| 13 | INTRODUCTION |
| 16 | 1 Scope |
| 17 | 2 Normative references |
| 19 | 3 Terms and definitions 3.1 General definitions 3.1.1 3.1.2 |
| 20 | 3.1.3 3.1.4 3.1.4.1 3.1.4.2 3.1.5 3.1.6 3.1.7 |
| 21 | 3.1.8 3.1.9 3.1.10 3.1.11 3.1.12 3.1.13 3.1.14 |
| 22 | 3.1.15 3.1.16 3.1.17 3.1.18 3.1.19 3.1.20 3.1.21 |
| 23 | 3.1.22 3.1.23 3.1.24 3.1.25 3.1.26 3.1.27 3.1.28 |
| 24 | 3.1.29 3.1.30 3.1.31 3.1.32 3.1.33 |
| 25 | 3.1.34 3.1.35 3.1.36 3.1.37 3.1.38 3.1.39 |
| 26 | 3.1.40 3.1.41 3.1.42 3.1.43 3.1.44 3.1.45 |
| 27 | 3.1.46 3.1.47 3.1.48 3.1.49 3.1.50 3.1.51 |
| 28 | 3.1.52 3.1.53 3.1.54 3.1.55 3.1.56 3.1.57 |
| 29 | 3.1.58 3.1.59 3.1.60 3.1.61 3.1.62 3.1.63 3.1.64 |
| 30 | 3.2 Additional definitions for Non-Combined SSEs and SSE control units (controllers) of Combined SSEs 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 |
| 31 | 3.2.8 3.2.9 3.3 Additional definitions dedicated to Combined SSE 3.3.1 3.3.2 3.3.3 |
| 32 | 4 Classification 4.1 According to the method of operation 4.1.1 Manually operated SSE: M-SSE 4.1.2 Remotely operated SSE: R-SSE 4.1.3 Automatically operated SSE: A-SSE 4.2 According to the construction 4.2.1 Combined SSE 4.2.1.1 SSE based on switches (SW-SSE) 4.2.1.2 SSE based on circuit-breakers (CB-SSE) 4.2.1.3 SSE based on contactors (CT-SSE) 4.2.1.4 SSE based on different switching devices 4.2.2 Non-Combined SSE 4.3 According to the kind of current 4.3.1 AC use 4.3.2 DC use |
| 33 | 4.4 According to the number of switched poles 4.4.1 Single pole SSE 4.4.2 Two-pole SSE 4.4.3 Three-pole SSE 4.4.4 Four-pole SSE 4.5 According to the type of terminals 4.5.1 SSE with screw-type terminals for external copper conductors 4.5.2 SSE with screwless-type terminals for external copper conductors 4.6 According to the SSE intended application 4.6.1 Islanding 4.6.2 Back-up 4.7 According to coupling method 4.7.1 SSE with synchronization 4.7.2 SSE with interlock 4.7.2.1 SSE with mechanical interlock 4.7.2.2 SSE with electrical interlock 4.7.2.3 SSE with both mechanical and electrical interlocks 4.8 According to the transition type 4.8.1 Open transition 4.8.2 Closed transition |
| 34 | 4.9 According to the possibility to select sources 4.9.1 SSE selecting source 1 or source 2 4.9.2 SSE allowing several sources to run in parallel 4.10 According to the utilization category 4.10.1 With utilization category 4.10.2 Without utilization category 4.11 According to the possibility to provide an OFF-position 4.11.1 SSE without OFF-position 4.11.2 SSE with OFF-position 4.12 According to the method of mounting 4.12.1 Surface-type 4.12.2 Flush-type 4.12.3 Panel-type (also referred as panel board type or distribution board) 4.13 According to the protection against external influences 4.13.1 Enclosed-type 4.13.2 Unenclosed-type 4.14 According to functional categories 4.14.1 Basic SSE 4.14.2 Backup SSE 4.14.3 Advanced SSE 4.14.4 Smart grid ready |
| 36 | 5 Characteristics 5.1 General |
| 37 | 5.2 Type and characteristics of the equipment 5.3 Characteristics of Non-Combined SSEs 5.3.1 General |
| 38 | 5.3.2 Characteristics of main circuits 5.3.2.1 Type of current 5.3.2.2 Rated operational voltage (Ue) 5.3.2.3 Rated insulation voltage (Ui) 5.3.2.4 Rated impulse voltage (Uimp) |
| 39 | 5.3.2.5 Rated current (In) 5.3.2.6 Maximum values of the rated current (In) 5.3.2.7 Rated making and breaking capacity (Im) 5.3.2.8 Rated frequency 5.3.2.9 Rated conditional short circuit current (Inc) 5.3.3 Utilization categories |
| 40 | 5.3.4 Characteristics of control circuits, including electrical interlocks 5.3.4.1 General |
| 41 | 5.3.4.2 Rated values for power supplies of control circuits 5.3.4.3 Rated voltage source deviation (Ud) and rated frequency source deviation (fd) 5.3.4.4 Other monitored source characteristics 5.3.5 Characteristics of auxiliary circuits |
| 42 | 5.4 Characteristics of Combined SSEs 5.4.1 General 5.4.2 Characteristics of main circuits 5.4.2.1 Type of current 5.4.2.2 Rated operational voltage (Ue) 5.4.2.3 Rated impulse voltage (Uimp) 5.4.2.4 Rated current (In) 5.4.2.5 Rated making and breaking capacity (Im) |
| 43 | 5.4.2.6 Rated frequency 5.4.2.7 Rated conditional short circuit current (Inc) 5.4.3 Utilization categories 5.4.4 Characteristics of control circuits, including electrical interlocks 5.4.5 Characteristics of auxiliary circuits |
| 44 | 6 Markings and product information |
| 45 | 7 Standard conditions for operation in service 7.1 General 7.2 Ambient temperature range in normal use 7.3 Relative humidity |
| 46 | 7.4 Altitude 7.5 Conditions of installation 7.6 Pollution degree 8 Requirements for construction and operation 8.1 General |
| 47 | 8.2 Mechanical design 8.2.1 General 8.2.2 Constructional requirements 8.2.2.1 Mechanical requirements for insulating means 8.2.2.2 Installation requirements |
| 48 | 8.2.2.3 Fixings of covers, cover plates and actuating members 8.2.2.4 Attachment of knobs 8.2.2.5 Mounting means |
| 49 | 8.2.2.6 Accessories 8.2.3 Mechanism and operating means 8.2.3.1 General 8.2.3.2 Indication of the position 8.2.3.3 Rest position 8.2.3.4 Making and breaking of the neutral pole 8.2.3.5 Action of the mechanism without cover or cover plate |
| 50 | 8.2.3.6 Fixings and removal of operating means 8.2.3.7 Locking 8.2.3.8 Status indicators 8.2.4 Clearances and creepage distances and distances through sealing compound 8.2.4.1 General |
| 52 | 8.2.4.2 Clearances 8.2.4.3 Creepage distances 8.2.4.4 Solid insulation 8.2.4.5 Insulating compound 8.2.5 Screws, current-carrying parts and connections 8.2.5.1 General |
| 53 | 8.2.5.2 Correct insertion of screws 8.2.5.3 Contact pressure of electrical connections 8.2.5.4 Screws and rivets used both as electrical and mechanical connections 8.2.5.5 Material of current-carrying parts |
| 54 | 8.2.5.6 Thread-forming and thread-cutting screws 8.2.6 Terminals for external copper conductors 8.3 Protection against electric shock |
| 55 | 8.4 Dielectric properties 8.4.1 General 8.4.2 Dielectric properties 8.5 Temperature-rise |
| 57 | 8.6 Making and breaking capacity |
| 58 | 8.7 Performances 8.7.1 General 8.7.2 Operating conditions 8.7.2.1 General 8.7.2.2 Operating mechanism 8.7.2.3 Controls, sequences and limits of operations 8.7.2.3.1 General |
| 59 | 8.7.2.3.2 Limits of operation 8.7.2.3.3 Operation upon interruption of source 1 (normal source) 8.7.2.3.4 Operation upon source deviations 8.7.2.3.5 Operation in closed transition |
| 60 | 8.7.2.3.6 Remotely controlled SSEs 8.7.3 Operational performance |
| 61 | 8.8 Resistance to heat 8.9 Resistance of insulating material to abnormal heat and to fire 8.10 Resistance to rusting 8.11 Coordination with short circuit protective devices (SCPDs) |
| 62 | 8.12 EMC 8.12.1 General 8.12.2 Immunity 8.12.3 Emission 8.12.3.1 General 8.12.3.2 Low-frequency emission 8.12.3.3 Radio-frequency emission 8.13 Resistance to abnormal conditions 8.14 Components 8.14.1 General |
| 63 | 8.14.2 Fuses 8.14.3 Capacitors |
| 64 | 8.14.4 Resistors 8.14.5 Automatic protective devices (other than fuses) 8.14.6 Transformers 9 Type tests 9.1 General requirements 9.1.1 Type tests and test sequences 9.1.2 Tests conditions |
| 65 | 9.1.3 Tests procedure 9.2 Tests of indelibility of markings |
| 66 | 9.3 Tests of the mechanical strength 9.3.1 Tests of the resistance to mechanical stresses of insulating means 9.3.1.1 General 9.3.1.2 Pendulum hammer tests |
| 74 | 9.3.1.3 Tests of rail mounted SSEs |
| 75 | 9.3.2 Verification of installation and connections |
| 77 | 9.3.3 Tests of fixings of covers, cover plates and actuating members 9.3.3.1 General 9.3.3.2 Tests of fixings based on screws or rivets 9.3.3.3 Tests of fixings which may be removed by applying a force perpendicular to the surfaces |
| 78 | 9.3.3.4 Tests of fixings which may be removed using a tool 9.3.4 Tests of attachment of knobs |
| 79 | 9.3.5 Tests of covers, cover plates or actuating members – accessibility to live parts 9.3.5.1 General 9.3.5.2 Verification of the non-removal of covers, cover plates or actuating members 9.3.5.3 Verification of the removal of covers, cover plates or actuating members 9.3.6 Tests of covers, cover plates or actuating members – accessibility to non-earthed metal parts separated from live parts |
| 80 | 9.3.7 Tests of covers, cover plates or actuating members – accessibility to insulating parts, earthed metal parts, the live parts of SELV ≤ 25 V AC or metal parts separated from live parts 9.3.8 Tests of covers, cover plates or actuating members – application of gauges |
| 82 | 9.3.9 Tests of grooves, holes and reverse tapers |
| 83 | 9.4 Measurements of clearances and creepage distances |
| 84 | 9.5 Verification of the reliability of screws, current-carrying parts and connections |
| 85 | 9.6 Verification of reliability of terminals for external copper conductors 9.6.1 Tests of screw-type terminals 9.6.1.1 General |
| 89 | 9.6.1.2 Verification of conductor fittings 9.6.1.3 Tests of the mechanical strength of terminals |
| 90 | 9.6.1.4 Tests of the resistance to corrosion of terminals 9.6.1.5 Tests of clamping effects on conductors |
| 91 | 9.6.1.6 Tests of the clamping reliability of terminals |
| 92 | 9.6.1.7 Verification of the clamping length of terminals 9.6.1.8 Verification of the reliability of terminals |
| 93 | 9.6.1.9 Verification of the accidental loosening of earthing terminals 9.6.1.10 Tests of the resistance to corrosion of earthing terminals 9.6.1.11 Tests of the additional constrains for the design of pillar terminals 9.6.1.12 Tests of the additional constrains for the design of lug terminals |
| 94 | 9.6.1.13 Tests of the additional constrains of terminals for the connection of external conductors 9.6.2 Tests of screwless terminals 9.6.2.1 General 9.6.2.2 Verification of conductor fittings 9.6.2.3 Verification of the connection of conductors |
| 95 | 9.6.2.4 Verification of the type of material 9.6.2.5 Tests of conductors clamping 9.6.2.6 Tests of the operation of terminals 9.6.2.7 Tests of multi conductor terminals 9.6.2.8 Verification of the introduction of conductors |
| 96 | 9.6.2.9 Tests of the fixings of terminals 9.6.2.10 Verification of the mechanical strength |
| 98 | 9.6.2.11 Verification of electrical and thermal stress resistance |
| 99 | 9.6.2.12 Mechanical reliability tests |
| 102 | 9.6.3 Verification of the resistance to ageing 9.7 Tests for the protection against electric shock |
| 105 | 9.8 Tests of dielectric properties 9.8.1 General 9.8.2 Tests of the resistance to humidity 9.8.3 Tests of the insulation resistance of the main circuits |
| 106 | 9.8.4 Tests of the dielectric strength of main circuits |
| 109 | 9.8.5 Tests of the insulation resistance and dielectric strength of other circuits |
| 110 | 9.8.6 Verification of impulse withstand voltages (across clearances and through solid insulations) 9.8.6.1 General testing procedure |
| 111 | 9.8.6.2 Verification of clearances with impulse withstand voltage tests |
| 112 | 9.9 Tests of temperature-rise 9.9.1 General 9.9.2 Test setup |
| 113 | 9.9.3 Test procedure 9.10 Tests of making and breaking capacity |
| 114 | 9.11 Verification of performances 9.11.1 General 9.11.2 Verification of interlocking function 9.11.2.1 Verification under normal conditions 9.11.2.1.1 Manual operation 9.11.2.1.2 Remote operation |
| 115 | 9.11.2.2 Verification of the robustness of the mechanical interlock 9.11.2.2.1 General 9.11.2.2.2 Manual operation |
| 117 | 9.11.2.2.3 Condition of equipment during and after test 9.11.3 Verification of controls, sequences and limits of operations 9.11.3.1 General 9.11.3.2 Verification of operation upon loss of supply of source 1 |
| 118 | 9.11.3.3 Verification of operations upon deviations of source 1 9.11.3.4 Verification of operations upon deviations of source 2 |
| 119 | 9.11.3.5 Verification of operations with closed transition 9.11.3.6 Verification of operations of SSEs upon external signals |
| 120 | 9.11.4 Verification of the operational performance capability 9.11.4.1 General 9.11.4.2 Tests of Non-Combined SSEs 9.11.4.3 Tests of Combined SSEs 9.11.4.4 SSE condition during and after the tests |
| 121 | 9.12 Tests of heat resistance 9.12.1 Basic heating test 9.12.2 Ball-pressure test on parts of insulating material necessary to retain current-carrying parts and parts of the earthing circuit in position |
| 122 | 9.12.3 Ball-pressure test on parts of insulating material not necessary to retain current-carrying parts and parts of the earthing circuit in position 9.13 Tests of the resistance of insulating material to abnormal heat and to fire |
| 124 | 9.14 Resistance to rusting 9.15 Tests of coordination with short circuit protective devices (SCPDs) 9.15.1 General |
| 125 | 9.15.2 Test conditions 9.15.2.1 Test circuit |
| 128 | 9.15.2.2 Tolerances on test quantities 9.15.2.3 Power factor of the test circuit |
| 129 | 9.15.2.4 Power frequency recovery voltage 9.15.2.5 Calibration of the test circuit 9.15.2.6 Sequence of operations 9.15.3 Tests of coordination between the SSE and the SCPDs 9.15.3.1 General |
| 130 | 9.15.3.2 Verification of the coordination at the rated conditional short-circuit current (Inc) 9.15.3.3 Verification at the instantaneous tripping of the SCPD 9.15.3.4 Condition of the SSE during and after tests 9.16 EMC tests 9.16.1 General |
| 131 | 9.16.2 Immunity tests 9.16.2.1 General 9.16.2.2 Voltage dips and short interruptions tests |
| 132 | 9.16.2.3 Surge immunity tests with 1,2/50 wave impulses 9.16.2.4 Electrical fast transient/burst tests |
| 133 | 9.16.2.5 Electrostatic discharge tests 9.16.2.6 Radiated electromagnetic field tests |
| 134 | 9.16.2.7 Radio-frequency voltage tests 9.16.2.8 Power-frequency magnetic field tests 9.16.3 Emission tests |
| 135 | 9.17 Tests under abnormal conditions 9.17.1 General 9.17.2 Tests under fault conditions |
| 136 | 9.17.3 Overload tests |
| 137 | 9.18 Tests of components 9.18.1 Tests of automatic protective devices (other than fuses) 9.18.1.1 Tests of cut-outs 9.18.1.1.1 General 9.18.1.1.2 Non-self-resetting cut-outs |
| 138 | 9.18.1.1.3 Self-resetting cut-outs 9.18.1.2 Tests of automatic protective devices |
| 139 | Annex A (informative) Examples of possible use of SSEs A.1 General concept of prosumer’s low-voltage electrical installation |
| 142 | A.2 Examples of SSE use |
| 145 | Annex B (informative) Correspondence between ISO and AWG copper conductors |
| 146 | Annex C (normative) Determination of clearances and creepage distances C.1 General C.2 Orientation and location of a creepage distance C.3 Creepage distances where more than one material is used C.4 Creepage distances split by floating conductive part C.5 Measurement of creepage distances and clearances |
| 150 | Annex D (normative) Test sequences and number of specimens |
| 152 | Annex E (normative) Arrangement for the detection of the emission of ionized gases during short-circuit tests |
| 155 | Bibliography |
