Chapter 1


Implementation of any system on a world market cannot be achieved without allowing for local peculiarities and variations, particularly those concerning the application environment.

Although the International Standards Organisation (ISO), the International Electrotechnical Commission (IEC), the Comité Européen de Normalisation (CEN), the Comité Européen de Normalisation Electrotechnique (CENELEC) and the national bodies (e.g. British Standards Institution (BSI)) produce standards and specifications that:

• establish classes of environmental parameters and list their severity;

• list the limitations and restrictions that will be imposed on equipment by the intrinsic environmental conditions that occur at locations where ...

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