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BS 5992-4:1983

Current

Current

The latest, up-to-date edition.

Electrical relays Specification for contact loads of preferred values used in endurance tests for electrical relay contacts

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

29-04-1983

£142.00
Excluding VAT

National foreword
Committees responsible
Section one - General and definitions
1 General
1.1 Scope and object
1.2 General requirements
2 Terms and definitions
2.1 Application category of contacts
3 Standard values
3.1 Application categories of contacts
Section two - Standard values for categories 0 and 1
4 Contact loads
4.1 D.C. and a.c. (50 Hz or 60 Hz) resistive loads
4.2 D.C. inductive loads
4.3 Capacitive load
4.4 D.C. relay load
4.5 D.C. open-ended cable loads (floating cable)
4.6 D.C. cable loads combined with resistive load
4.7 D.C. cable load combined with relay load
Section three - Standard values for categories 2 and 3
5 Contact loads
5.1 D.C. and a.c. (50 Hz, 60 Hz or 400 Hz) resistive
     loads
5.2 Inductive loads
5.3 Capacitive loads
5.4 Relay load

Specifies characteristics of standard types of contact load to be used in endurance tests of electrical relay contacts over ranges of voltages and currents corresponding to defined application categories. Also lists preferred values for contact loads.

Committee
PEL/95
DevelopmentNote
Also numbered as IEC 60255-14 Supersedes 78/27037 DC and 80/22638 DC (09/2005)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current

This standard applies to contact assemblies of all types of relays covered by the Publication 255 series: Electrical Relays.

This standard specifies preferred characteristics of the contact loads to be used in endurance tests of electrical relay contacts over the ranges of voltages and currents defined by application categories. Preferred values are given for various types of load including relay and cables.

As a result of further consideration the title and values of various tables differ slightly from those published in IEC Publication 225-0-20: Contact Performance of Electrical Relays.

The detail specifications2) shall refer to these preferred values of contact loads but for a particular application, additional characteristics may be defined (e.g. inrush current in a contact load circuit, lamp load or motor load).

Standards Relationship
UNE-EN 12118:1998 Identical

BS EN 60255-23:1997 Electrical relays Contact performance
BS EN 116000-3:1996 Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays Test and measurement procedures
BS 5992-5:1983 Electrical relays Specification for test equipment used in endurance tests for electrical relay contacts
CECC 16000 PT1 : 90 AMD 2 92 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: ELECTROMECHANICAL ALL-OR-NOTHING RELAYS - PART 1: GENERAL
BS CECC 16000-1:1992 Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays General

IEC 60096-2:1961 Radio-frequency cables - Part 2: Relevant cable specifications
BS 4727-1:GRP03(1971) : 1971 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS COMMON TO POWER TELECOMMUNICATIONS & ELECTRONICS - RELAY TERMINOLOGY
BS 5992-5:1983 Electrical relays Specification for test equipment used in endurance tests for electrical relay contacts
BS 5992-1:1980 Electrical relays Specification for contact performance of electrical relays

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