5. Envelope. External links
The printed circuit board must be housed in an enclosure with at least IP 20 protection (determined in accordance with EN 60529).
Figure 16 shows a possible layout which, in addition to complying with the requirements of Table 5, must also meet the following rules: the connection terminals of intrinsically safe circuits must be separated from the connection terminals of non-intrinsically safe circuits by one or more of the methods described in this paragraph 5
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Envelope. External links
Intrinsic safety systems
Bibliography
- BABIARZ (P.S.) - Understanding and applying intrinsic safety. - Proceedings Sensors Expo, Boston, 1995. Helmers Publishing Peterborough, NH, USA, 1995.
- PEREZ (M.A.), CAMPO (J.C.), BLANCO (C.J.), ALVAREZ (J.C.) - New sensors network based upon fiber optic link to work under intrinsic safety conditions. - Proceedings...
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