Terms And Abbreviations; Exclusion Of Liability - ABB ACS355 Supplement Manual

Terms and abbreviations

Term Description
ATEX Directives 2014/34/EU and 1999/92/EC are commonly referred to as the
ATEX directives (from "Atmosphères Explosibles")
Ex An IEC term used in the context of explosive atmospheres
Ex t, Ex tc Electrical equipment protected by an enclosure and a surface temperature
limitation for use in explosive dust atmospheres.
Type of protection "t" is divided into three levels of protection based on the
risk of the electrical equipment becoming an ignition source in an explosive
dust atmosphere. Level of protection Ex tc is suitable in Zone 22.
Zone An IEC term for explosive atmospheres. Explosive atmospheres are divided
into zones, according to the degree of hazard. The degree of hazard is
defined according to the frequency and duration of the occurrence of
explosive atmospheres.

Exclusion of liability

ABB is not responsible for the implementation, verification and validation of the
overall system. It is the responsibility of the end user (or other party) who is
responsible for the overall system, system safety and compliance with ATEX/Ex
regulations.
The end user (or other responsible party) must make sure that the entire
implementation complies with all relevant standards, directives and local electrical
code, and that the system is tested, verified and validated correctly.
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