APPENDIX A
Standards
Standards are indispensable to manufacturing industry. Not only do they allow interchangeability or interoperability between different manufacturers’ products, but they also represent a distillation of knowledge about practical aspects of technology—how to make measurements, what tests to use, what dimensions to specify and so on. Each standard is the result of considerable work on the part of a collection of experts in that particular field and is therefore authoritative; notwithstanding which, any standard in a fast-changing area will be subject to revision and amendment as the technology progresses.
This appendix lists a few of the more relevant British and international standards, both of those which have been referenced in the text of this book and some that the author feels to be of particular interest. The catalogs of the various standards bodies, updated yearly, give a full list of the available and current standards and are essential for the library of any development department. Although only BS and IEC publications are mentioned here, for the sake of brevity, there are of course many other standards sources which you may need to consult for a particular application.
A.1 British Standards
These are available from:
British Standards Institution
Customer Services
389 Chiswick High Road
London W4 4AL
UK
Tel +44 (0)208 996 9001 e-mail [email protected]
website http://www.bsi-global.com
Some BS standards are related to, equivalent to or identical to other European or international standards. This is indicated where appropriate. Where a British Standard’s numbering starts “BS EN” this means that it is identical to the equivalent European document produced by CENELEC, which itself may well be identical to the IEC source document, although this is not assured.
BS no. Related, equivalent or identical standards
BS 613
Specification for components and filter units for electromagnetic interference suppression.
BS 2316 IEC 60096
Specification for radio-frequency cables.
BS 2488 IEC 60063
Schedule of preferred numbers for resistors and capacitors.
BS 2754 IEC 60536
Memorandum: construction of electrical equipment for protection against electric shock.
BS 4808 IEC 60189
Specification for LF cables and wires with PVC insulation and PVC sheath for telecommunications.
BS 5783
Code of practice for handling of electrostatic sensitive devices.
BS 6221 IEC 60326
Printed wiring boards.
BS 6500
Electric cables. Flexible cords rated up to 300/500V, for use with appliances and equipment intended for domestic, office and similar environments.
BS EN 13602
Copper and copper alloys. Drawn, round copper wire for the manufacture of electrical conductors.
BS EN 55014 CISPR 14
Electromagnetic compatibility. Requirements for household appliances, electric tools and similar apparatus.
BS EN 55022 CISPR 22
Information technology equipment. Radio disturbance characteristics. Limits and methods of measurement.
BS EN 60062 IEC 60062
Specification for marking codes for resistors and capacitors.
BS EN 60065 IEC 60065
Audio, video and similar electronic apparatus. Safety requirements.
BS EN 60068 IEC 60068
Environmental testing.
BS EN 60127 IEC 60127
Miniature fuses.
BS EN 60182 IEC 60182, IEC 60851
Basic dimensions of winding wires. Specification for maximum overall diameters of enamelled round winding wires.
BS EN 60269 IEC 60269
Low-voltage fuses (see also some parts of BS 88).
BS EN 60285 IEC 60285
Alkaline secondary cells and batteries. Sealed nickel-cadmium cylindrical rechargeable single cells.
BS EN 60431 IEC 60431
Specification for dimensions of square cores (RM-cores) made of magnetic oxides and associated parts.
BS EN 60529 IEC 60529
Specification for degrees of protection provided by enclosures (IP code).
BS EN 60617 IEC 60617
Graphical symbols for diagrams.
BS EN 60950 IEC 60950
Safety of information technology equipment.
BS EN 61951 IEC 61951
Secondary cells and batteries containing alkaline or other non-acid electrolytes (previously IEC 60509).
BS QC 300XXX IEC 60384
Harmonized system of quality assessment for electronic components. Fixed capacitors for use in electronic equipment.
BS 9940 IEC 60115, QC 400XXX
Harmonized system of quality assessment for electronic components. Fixed resistors for use in electronic equipment.
A.2 IEC Standards
The IEC (International Electrotechnical Commission) is responsible for international standardization in the electrical and electronics fields. It is composed of member National Committees. IEC publications are available from the BSI, address as before, other national committees, or from the IEC webstore at http://www.iec.ch, postal address
IEC Central Office
3 Rue de Varembé
1211 Geneva 20
Switzerland
Most IEC publications have related British standards (see list above). A few which do not are listed below.
IEC 60479
Effects of current passing through the human body.
IEC 60647
Dimensions for magnetic oxide cores intended for use in power supplies (EC-cores).