Unformatted text preview: mmersed in water under
the specified pressure and time conditions.
Water must not penetrate in harmful quantities (immersion). 8 1) The equipment (housing) is suitable for permanent submersion under conditions to
be described by the manufacturer (submersion)
This protection class normally refers to equipment which is sealed hermetically. With certain
types of equipment it is however possible for water to penetrate insofar as this has no harmful
effect. Table 14.2.2: Classes of protection against water 216 © Festo Didactic GmbH & Co. KG • FP 1110 14. Standards and protection classes 14.3
Colour coding 14.3.1 Colour symbols to DIN IEC 757
This standard defines the standard colour coding in electrical engineering. Abbreviation English Deutsch BK black schwarz BN brown braun RD red rot OG orange orange YE yellow gelb GN green grün BU blue blau VT violet violett GY grey grau WH white weiß PK pink rosa GD gold gold TQ turquoise türkis SR silver silber GNYE greenyellow grüngelb Table 14.3.1: Colour abbreviations 14.3.2 Colour coding to EN...
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- Spring '12
- pH, proximity sensors, Festo Didactic GmbH, Festo Didactic GmbH & Co