{"id":239703,"date":"2024-10-19T15:40:56","date_gmt":"2024-10-19T15:40:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60068-3-32019\/"},"modified":"2024-10-25T10:23:35","modified_gmt":"2024-10-25T10:23:35","slug":"bs-en-iec-60068-3-32019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60068-3-32019\/","title":{"rendered":"BS EN IEC 60068-3-3:2019"},"content":{"rendered":"

This part of IEC 60068 applies primarily to electro-technical equipment but its application can be extended to other equipment and to components.<\/p>\n

In addition, if some type of analysis is always performed when making a seismic qualification, for example for the choice of the representative sample to be tested or for the extension of the seismic qualification from the tested specimen to similar specimens, the verification of the performance of an equipment by analysis or by a combination of testing and analysis can be acceptable but is outside the scope of this document, which is restricted to verification based entirely upon data from dynamic testing.<\/p>\n

This document deals solely with the seismic testing of a full-size equipment which can be tested on a vibration table. The seismic testing of an equipment is intended to demonstrate its ability to perform its required function during and\/or after the time it is subjected to the stresses and displacements resulting from an earthquake.<\/p>\n

The object of this document is to present a range of methods of testing which, when specified by the relevant specification, can be applied to demonstrate the performance of equipment for which seismic testing is required with the main aim of achieving qualification.<\/p>\n

\n

NOTE Qualification by so-called \u201cfragility-testing\u201d is not considered to be within the scope of this document which has been prepared to give generally applicable guidance on seismic testing and specifically on the use of IEC 60068-2 test methods.<\/p>\n<\/blockquote>\n

The choice of the method of testing can be made according to the criteria described in this document. The methods themselves are closely based on published IEC test methods.<\/p>\n

This document is intended for use by manufacturers to substantiate, or by users to evaluate and verify, the performance of an equipment.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
10<\/td>\nFOREWORD <\/td>\n<\/tr>\n
12<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
13<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
14<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
19<\/td>\n4 General and qualification considerations
4.1 General seismic class and specific seismic class
4.2 Service conditions <\/td>\n<\/tr>\n
20<\/td>\n4.3 Malfunction criteria
4.4 Qualification criteria
5 Testing procedures
5.1 General
5.2 Mounting
5.3 Measurements
5.3.1 Vibration measurements at the vibration table <\/td>\n<\/tr>\n
21<\/td>\n5.3.2 Vibration measurements on the equipment
5.3.3 Functional monitoring of the equipment
5.4 Frequency range
6 Conditioning
7 Test wave selection
7.1 General
7.2 Multifrequency waves <\/td>\n<\/tr>\n
22<\/td>\n7.3 Single-frequency waves
8 Test waves
8.1 General
8.1.1 Specification of test waves
8.1.2 Simulation with a safety margin of the effects of an earthquake <\/td>\n<\/tr>\n
23<\/td>\n8.2 Multifrequency wave testing
8.2.1 General requirements
8.2.2 Time-history test
8.2.3 Other multifrequency tests <\/td>\n<\/tr>\n
24<\/td>\n8.3 Single-frequency testing
8.3.1 General requirements
8.3.2 Sine-sweep test
8.3.3 Sine-beat test <\/td>\n<\/tr>\n
25<\/td>\n8.3.4 Continuous sine test
8.4 Other test wave forms
9 Testing conditions
9.1 General <\/td>\n<\/tr>\n
26<\/td>\n9.2 Vibration response investigation
9.3 Test methods
9.3.1 Test method for equipment without critical frequencies <\/td>\n<\/tr>\n
27<\/td>\n9.3.2 Test method for equipment with critical frequencies
9.4 Selection of damping
Tables
Table 1 \u2013 Typical damping ratios (per cent of critical) <\/td>\n<\/tr>\n
28<\/td>\n9.5 S1-earthquake and S2-earthquake testing
9.6 Specific application testing
9.7 Assembly testing
9.8 Component testing <\/td>\n<\/tr>\n
29<\/td>\n10 Single and multi-axis testing
10.1 General
10.2 Single-axis testing
10.3 Biaxial testing
10.3.1 General requirements
10.3.2 Two horizontal axes
10.3.3 One horizontal axis and one vertical axis <\/td>\n<\/tr>\n
30<\/td>\n10.4 Triaxial testing
10.4.1 General
10.4.2 Triaxial installation <\/td>\n<\/tr>\n
31<\/td>\n10.4.3 Biaxial installation (one horizontal axis, one vertical axis)
11 Conditioning for the general seismic class
11.1 Selection of test type
11.2 Test method
Table 2 \u2013 Selection of test type <\/td>\n<\/tr>\n
32<\/td>\n12 Calculated amplitude test method for the general seismic class
12.1 Application
12.2 Testing conditions
12.2.1 General
12.2.2 Performance level
12.2.3 Test wave selection
12.2.4 Damping ratio
12.2.5 Ground acceleration (ag)
Table 3 \u2013 Ground acceleration levels <\/td>\n<\/tr>\n
33<\/td>\nTable 4 \u2013 Correspondence between peak ground acceleration and some seismic scales <\/td>\n<\/tr>\n
34<\/td>\n12.2.6 Superelevation factor (K)
12.2.7 Direction factor (D)
Table 5 \u2013 Recommended superelevation factors (K)
Table 6 \u2013 Direction factors (D) <\/td>\n<\/tr>\n
35<\/td>\n12.2.8 Floor acceleration (af)
13 Testing parameters for the general seismic class
13.1 Duration of test
13.2 Test acceleration (at)
13.2.1 General <\/td>\n<\/tr>\n
36<\/td>\n13.2.2 Wave factor (\u03b1)
13.2.3 Geometric factor (G)
14 Required response spectrum for the general seismic class
Table 7 \u2013 Wave factor <\/td>\n<\/tr>\n
37<\/td>\n15 Testing procedures for the general seismic class
15.1 Vibration response investigation (VRI)
Figures
Figure 1 \u2013 Shape of a required response spectrum in generalized form (log-log scale) (as recommended by IEC 60068-2-57) <\/td>\n<\/tr>\n
38<\/td>\n15.2 Types of test
15.2.1 Sine-beat test
15.2.2 Sine-sweep test
15.2.3 Time-history test
15.2.4 Other test wave forms
16 Conditioning for the specific seismic class <\/td>\n<\/tr>\n
39<\/td>\n17 Test wave selection for the specific seismic class
17.1 General
17.2 Multifrequency waves
17.3 Single-frequency waves
18 Test waves for the specific seismic class
18.1 General
18.2 Single-frequency testing
18.2.1 General
18.2.2 Sine-sweep test
18.2.3 Sine-beat test <\/td>\n<\/tr>\n
40<\/td>\n18.2.4 Continuous sine test
18.3 Other test wave forms
19 Testing conditions for the specific seismic class
20 Single and multi-axis testing for the specific seismic class
Figure 2 \u2013 Typical envelope response spectrum <\/td>\n<\/tr>\n
41<\/td>\nFigure 3 \u2013 Types of response spectrum envelopes <\/td>\n<\/tr>\n
42<\/td>\nFigure 4 \u2013 Multifrequency response spectrum with superimposed sine beats
Figure 5 \u2013 Sequence of five sine beats with five cycles <\/td>\n<\/tr>\n
43<\/td>\nFigure 6 \u2013 Typical time history <\/td>\n<\/tr>\n
44<\/td>\nFigure 7 \u2013 Continuous sine <\/td>\n<\/tr>\n
45<\/td>\nFigure 8 \u2013 Biaxial table along an inclined plane <\/td>\n<\/tr>\n
46<\/td>\nFigure 9 \u2013 Wave amplification factors <\/td>\n<\/tr>\n
47<\/td>\nFigure 10 \u2013 Vibration amplitudes for ground acceleration ag with crossover frequencies at 0,8 Hz and 1,6 Hz <\/td>\n<\/tr>\n
48<\/td>\nAnnex A (informative) Flow charts for test selection
A.1 Selection of test type
Figure A.1 \u2013 Selection of seismic class <\/td>\n<\/tr>\n
49<\/td>\nA.2 General seismic class \u2013 Calculated amplitude test
Figure A.2 \u2013 Calculated amplitude test flowchart <\/td>\n<\/tr>\n
50<\/td>\nA.3 Specific seismic class \u2013 Single axis testing
Figure A.3 \u2013 Single-axis testing flowchart <\/td>\n<\/tr>\n
51<\/td>\nA.4 Specific seismic class \u2013 Multi-axis testing
Figure A.4 \u2013 Multi-axis testing flowchart <\/td>\n<\/tr>\n
52<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Environmental testing – Supporting documentation and guidance. Seismic test methods for equipment<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n54<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239706,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-239703","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/239706"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239703"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239703"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}