Classification of environmental conditions. Classification of groups of environmental parameters and their severities - Microclimates inside products Ingestion-build-95349 BS EN 50377‑18-1 application in

BS EN 50377‑18-1 application in optical fibre communication negates the loss of light

BS 764 specifies means for automatically changing the current supplied to safety lights from the normal source to the alternative source when the normal source fails

– general information

Identifying and fostering innovation enablers/driving factors

NOTE: This standard is the British equivalent of ISO 2859-1 1999

Classification of environmental conditions. Classification of groups of environmental parameters and their severities - Microclimates inside products Ingestion-build-95349 BS EN 50377‑18-1 application in1 Scope This section of IEC 7213 defines classes of microclimatic conditions, to which components (basic parts, assemblies, built in units) may be subjected inside products, which are used under the climatic conditions as classified in sections IEC 72133 and IEC 72134. Characteristic parameters for the microclimates are high air temperature and high relative air humidity. Further parameters of the climatic classes e. g. low temperature may affect the