6.2.2 Wiring for explosion hazard areas
Fig. 35 Conventional detector lines for ex-areas, circuit diagram
In ex-areas, use only fire detectors that are approved for ex-areas. Between the
explosion-hazard area and the non-ex-area the detector line must be galvanically
insulated (DC1192) and laid via a safety barrier (SB3). The termination element
EOL22Ex must be provided as a line terminator.
Country-specific regulations always apply to installation in ex-areas.
Further information can be found in the document "Fire detection systems in
explosion-hazard areas", document Nr. 1204.
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