Fireproof electronic connectors: design challenges

In 2006, the EU introduced the ATEX directive, outlining stringent criteria to offer protection to workers operating equipment in hazardous areas. Heretofore, all equipment and component parts deployed for use within hazardous environments in the EU must meet exhaustive testing standards to assure high performance in work environments where there is a risk of explosions, fire or extreme temperatures. While design engineers can choose simple component parts accredited by the ATEX directive in the assurance that they will perform well in hazardous areas, the strict rules of ATEX testing also extend to all parts of connector systems, such as the sealing caps used to maintain integrity when connectors are not mated. It is with these facts in mind that Stuart Hutchings, marketing manager at UK connector manufacturer Bulgin, has outlined design challenges for creating interconnect equipment for use in hazardous areas.