BS EN 61260-3:2016 – TC:2020 Edition
$186.33
Tracked Changes. Electroacoustics. Octave-band and fractional-octave-band filters – Periodic tests
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 86 |
IEC 61260-3:2016 describes procedures for periodic testing of octave-band and fractional-octave-band filters that were designed to conform to the class 1 or class 2 specifications given in IEC 61260-1:2014. The aim of this standard is to ensure that periodic testing is performed in a consistent manner by all laboratories. This first edition of IEC 61260-3 (together with IEC 61260-1:2014 and IEC 61260-2:2016), cancels and replaces the first edition of IEC 61260 published in 1995 and its Amendment 1 published in 2001. This edition constitutes a technical revision.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 62 | English CONTENTS |
| 63 | FOREWORD |
| 65 | INTRODUCTION |
| 66 | 1 Scope 2 Normative references |
| 67 | 3 Terms and definitions 4 Submission for testing 5 Conformance |
| 68 | 6 Preliminary inspection 7 Power supply 8 Environmental conditions 9 Mandatory facilities and general requirements 9.1 General |
| 70 | 9.2 Test instruments 10 Test of relative attenuation at midband frequency or effective bandwidth deviation 10.1 General 10.2 Tests of relative attenuation at midband frequency 10.3 Test of effective bandwidth deviation |
| 71 | 11 Linear operating range, measurement range, level range control and overload indicator |
| 72 | 12 Test of lower limit of linear operating range 13 Measurement of relative attenuation |
| 73 | 14 Documentation Table 1 – Frequency parameter R and acceptance limits on relative attenuation for fractional-octave-band filters |
| 76 | Annex A (informative) Uncertainty related to test by sinusoidal sweeps A.1 General A.2 Digitally generated signal |
| 77 | A.3 Test signal from a signal generator |
| 78 | A.4 Comparing measurements |
| 79 | Annex B (informative) Test of effective bandwidth deviation with the use of an exponential sweep – Example B.1 General B.2 Example |
| 81 | Annex C (informative) Normalized frequencies for test of one-third-octave-band filters C.1 General C.2 Example calculation |
| 82 | Table C.1 – Normalized test frequencies and acceptance limits on relative attenuation for one-third-octave-band filters |
| 83 | Bibliography |
