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BS EN 61811-1:2015

BS EN 61811-1:2015

$198.66

Electromechanical telecom elementary relays of assessed quality – Generic specification and blank detail specification

Published By Publication Date Number of Pages
BSI 2015 58
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IEC 61811-1:2015 applies to electromechanical telecom elementary relays. Relays according to this standard are provided for the operation in telecommunication applications. However, as electromechanical elementary relays, they are also suitable for particular industrial and other applications. This standard selects from IEC 61810 series and other sources the appropriate methods of test to be used in detail specifications derived from this specification, and contains basic test schedules to be used in the preparation of such specifications in accordance with this standard. Detailed test schedules are contained in the detail specifications. This second edition of IEC 61811-1 cancels and replaces IEC 61811-1 published in 1999, IEC 61811-10 published in 2002, IEC 61811-11 published in 2002, IEC 61811-50 published in 2002, IEC 61811-51 published in 2002, IEC 61811-52 published in 2002, IEC 61811-53 published in 2002, IEC 61811-54 published in 2002, IEC 61811-55 published in 2002, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions: a) to get one document for telecom relays; b) update all relevant references.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
9 1 Scope
2 Normative references
10 3 Terms and definitions
3.1 Type of relays
3.2 Types of contacts
11 3.3 Contact fault and contact failure
3.4 Relay malfunction, relay failure
3.5 Relay construction types
12 3.6 Inspection level and sample size
4 Rated values
4.1 General
4.2 Rated coil voltages
4.3 Contact-circuit resistance
4.4 Dielectric test
4.5 Impulse voltage test
13 4.6 Insulation resistance
4.7 Number of operations determining electrical endurance
4.8 Contact failure rate for test evaluation purposes
5 Marking and documentation
5.1 General
5.2 Marking of the relay
5.3 Marking of the package
5.4 Coded date of manufacture
6 Preparation of blank detail and detail specifications
15 7 Quality assessment procedures
7.1 Primary stage of manufacture
7.2 Structurally similar relays
7.3 Qualification approval procedures
7.4 Quality conformance inspection
7.4.1 Grouping of tests
16 7.4.2 Resubmission of rejected lots
7.4.3 Delivery of relays subjected to destructive tests or non-destructive tests
7.4.4 Delayed delivery
17 7.4.5 Supplementary procedure for deliveries
7.4.6 Unchecked parameters
7.4.7 Release for delivery before completion of group B tests
7.4.8 Screening procedures
7.4.9 Formation of inspection lots
7.4.10 Periodic inspection
7.5 Periodic inspection / Intervals between tests
18 8 Test schedule
8.1 Test sequence
8.2 Types of relays, based upon environmental protection (relay technology (RT))
8.3 Categories of application of contacts
8.4 Order of tests
8.5 Test groups and subgroups
19 Tables
Table 1 – Group A
20 Table 2 – Group B
21 Table 3 – Group C (1 of 2)
23 9 Tests
9.1 Standard conditions for testing
9.2 Mounting of test specimens during the test
9.3 General conditions for testing
10 Ordering information
24 Annex A (informative) Relay reliability – Failure rate data
A.1 General
A.2 Scope
A.3 Description of the relay
25 A.4 Fault and failure data
A.5 Source of data
A.6 Weibull approach
26 A.7 WeiBayes approach
28 Figures
Figure A.1 – New compressor design WeiBayes versus old design
29 Annex B (informative) Characteristic values of the relay
B.1 General data
Table B.1 – Dielectric test voltages
Table B.2 – Impulse test voltages
30 B.2 Coil data
B.3 Contact data
Table B.3 – Coil data
Table B.4 – Loads, contact-circuit resistance limits, switching cycles and frequencies for electrical endurance and overload tests
31 B.4 Mounting
B.5 Environmental data
B.6 Package of relays for automatic handling (if applicable)
32 Annex C (informative) Blank detail and detail specification
C.1 Examples for front pages
37 C.2 Qualification approval procedures
C.3 Quality conformance inspection
38 C.4 Formation of inspection lots
Table C.1 – Quality conformance inspection (1 of 14)
52 Table C.2 – Qualification approval (1 of 3)
54 Table C.3 – Industrial qualification
55 Annex D (informative) Definition of subgroups
56 Bibliography

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BS EN 61811-1:2015
$198.66