BS EN 60898:1991:2001 Edition
$215.11
Specification for circuit-breakers for overcurrent protection for household and similar installations
| Published By | Publication Date | Number of Pages |
| BSI | 2001 | 98 |
Gives requirements for a.c. air break circuit-breakers for operation at 50 Hz or 60 Hz having a rated voltage not exceeding 440 V, a rated current not exceeding 125 A and a rated short-circuit capacity not exceeding 25000 A.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Cooperating organizations |
| 3 | Contents |
| 6 | Foreword Foreword to amendment A11 Foreword to amendment A12 |
| 7 | Foreword to amendment A13 Foreword to amendment A14 Foreword to amendment A15 Foreword to amendment A16 |
| 8 | Foreword to amendment A17 Foreword to amendment A18 Foreword to amendment A19 |
| 9 | Contents |
| 11 | General Scope Object |
| 12 | Definitions Devices switching device mechanical switching device fuse circuit-breaker (mechanical) plug-in circuit-breaker General terms overcurrent overload current short-circuit current main circuit (of a circuit-breaker) control circuit (of a circuit-breaker) auxiliary circuit (of a circuit-breaker) |
| 13 | pole (of a circuit-breaker) closed position open position Air temperature operation operating cycle sequence of operation uninterrupted duty |
| 14 | routine test Constructional elements main contact arcing contact control contact auxiliary contact release overcurrent release inverse time-delay overcurrent release direct overcurrent release overload release conductive part exposed conductive part |
| 15 | terminal screw-type terminal pillar terminal screw terminal stud terminal saddle terminal lug terminal screwless terminal plug-in terminal |
| 16 | tapping screw thread-forming tapping screw thread-cutting tapping screw Conditions of operation closing operation opening operation dependent manual operation independent manual operation trip-free circuit-breaker Characteristic quantities rated value |
| 17 | prospective current (of a circuit, and with respect to a circuit-breaker) prospective peak current maximum prospective peak current (of an a.c. circuit) short-circuit (making and breaking) capacity breaking current applied voltage Recovery voltage |
| 18 | opening time Arcing time break time Joule integral Characteristic of a circuit-breaker Coordination between overcurrent protective devices in series |
| 19 | conventional non-tripping current ( conventional tripping current ( instantaneous tripping current clearance (see creepage distance (see Classification According to the number of poles According to the protection against external influences: |
| 20 | According to the method of mounting: According to the method of electrical connection: According to the instantaneous tripping current (see sub-clause According to the I Characteristics of circuit-breakers List of characteristics Rated quantities |
| 21 | Standard and preferred values |
| 22 | Table I Standard values of rated short-circuit capacity Table II Ranges of instantaneous tripping Marking and other product information Standard marking |
| 23 | Additional marking Guidance table for marking |
| 24 | Standard conditions for operation in service Ambient air temperature range Altitude Atmospheric conditions Conditions of installation Requirements for construction and operation Mechanical design |
| 27 | Table III Clearances and creepage distances |
| 29 | Table IV Connectable cross-sections of copper conductors for screw-type terminals |
| 30 | Protection against electric-shock |
| 31 | Dielectric properties Temperature rise Uninterrupted duty Automatic operation |
| 32 | Table VI Time-current operating characteristics |
| 33 | Mechanical and electrical endurance Performance at short-circuit currents Resistance to mechanical shock and impact Resistance to heat Resistance to abnormal heat and to fire Resistance to rusting Power loss Electromagnetic immunity Electromagnetic emission |
| 34 | Tests Type tests and routine tests Test conditions |
| 35 | Table VIII Cross-sectional (S) areas of test copper conductors corresponding to the rated currents Test of indelibility of marking Test of reliability of screws, current-carrying parts and connections |
| 36 | Table IX Screw thread diameters and applied torques Table X Pulling forces Test of reliability of terminals for external conductors |
| 37 | Table XI Conductor dimensions Test of protection against electric shock |
| 38 | Test of dielectric properties |
| 39 | Test of temperature rise and measurement of power loss |
| 40 | Table XIA Maximum power losses per pole 28-day test Test of tripping characteristic |
| 42 | Test of mechanical and electrical endurance |
| 43 | Short-circuit tests Table XII List of short-circuit tests |
| 45 | power factor ranges of the test circuit |
| 48 | Table XIV Table XV |
| 49 | Table XVI Table XVII Table XVIII |
| 50 | Table XIX |
| 51 | Test of resistance to mechanical shock and impact |
| 53 | Test of resistance to heat |
| 54 | Resistance to abnormal heat and to fire Test of resistance to rusting |
| 55 | Figure 1 Thread-forming tapping screw Figure 2 Thread-cutting tapping screw Figure 3 Single-pole circuit-breaker or individual pole of a multipole circuit-breaker |
| 56 | Figure 4a Two-pole circuit-breaker with one protected pole Figure 4bTwo-pole circuit-breaker with two protected poles Figure 5 Three-pole circuit-breaker (or three single-pole circuit-breakers) |
| 57 | Figure 3 to 6 Four-poll circuit-breaker |
| 58 | Figure 7 Calibration of the test circuit |
| 59 | Figure 8 Mechanical shock test apparatus |
| 60 | Figure 9 Standard test finger (as in IEC Publication 529, Amendment No. 2) |
| 61 | Figure 10 Mechanical impact test apparatus |
| 62 | Figure 11 Pendulum for mechanical impact test apparatus (striking element) |
| 63 | Figure 12 Mounting support for sample, for mechanical impact test |
| 64 | Figure 13 Examples of mounting of a flush-type circuit-breaker for mechanical impact test |
| 65 | Figure 14 Example of mounting of panel board type circuit-breaker for mechanical impact test |
| 66 | Figure 15 Mechanical test, according to sub-clause Figure 16 Ball-pressure test apparatus |
| 67 | Annex A Determination of short-circuit power factor Annex B Determination of clearances and creepage distances |
| 69 | Annex C Test sequences and number of samples necessary to prove compliance with the standard Test sequences Number of samples to be submitted for full test procedure |
| 70 | Table C.I Test sequences Table C.II Number of samples for full test procedure |
| 71 | Number of samples to be submitted for simplified test procedure If a series of circuit-breakers of the same fundamental design, or additions to such a series of … For circuit-breakers having the same instantaneous tripping classification according to sub-clause� |
| 72 | Table C.III Number of samples for simplified test procedure For an additional range of circuit-breakers of the same fundamental design as described in sub-cl… Table C.IV Test sequences for circuit-breakers having different instantaneous tripping currents |
| 73 | Annex D Co-ordination between circuit-breakers and separate fuses associated in the same circuit |
| 75 | Figure D1 |
| 76 | Annex E Special requirements for auxiliary circuits for safety extra-low voltage Annex F Examples of terminals Figure F1 Examples of pillar terminals |
| 77 | Figure F2 Examples of screw terminals and stud terminals |
| 78 | Figure F3 Examples of saddle terminals Figure F4Examples of lug terminals Annex G Void |
| 79 | Annex H Arrangement for the detection of the emission of ionized gases during short-circuit tests Figure H1Test arrangement |
| 80 | Figure H2 Grid Figure H3 Grid circuit |
| 81 | Annex ZA Classification of circuit-breakers into energy limiting classes Figure ZA1 Figure ZA2 |
| 82 | Annex ZB Guide for the selection of circuit-breakers with reference to their rated voltage Annex ZC (informative) National A-deviations |
| 83 | Annex ZD (normative) Other international publications quoted in this standard with the references of the r… |
| 85 | National Appendix NA (informative) Deletions from and IEC text amended by common modifications to IEC Publication�898:… |
| 87 | Table 1A Preferred values of rated voltage |
| 89 | Table V Temperature rise values Table VI Time-current operating characteristics |
| 90 | Table VII List of type tests |
| 93 | Figure 7 Example of short-circuit making or breaking test record in the case of a single pole device on si… |
| 94 | Appendix A Determination of short-circuit power factor Appendix C Test sequences and number of samples to be submitted for certification* purposes Table CII Number of samples for full test procedure |
| 95 | Table CIII Number of samples for simplified test procedure Table CIV Test sequences for different instantaneous tripping classifications |
| 96 | Appendix G Correspondence between ISO and AWG copper conductors |
| 97 | National Appendix NB (informative) |
