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link 29.03.2010 9:12 |
Subject: Entity Concept (vs. FISCO Concept vs. FNICO Concept) automat. http://www.control.com/thread/1026250527The original design of the Fieldbus standard assumed "worst case" conditions for the purposes of specifying power to the field devices, that is, that they would always demand maximum power and were installed in Division 1 (North American rating) or Zone 1 (IEC rating) hazardous locations. This is called the Entity Concept for bus power design. "Концепция единой системы"? Спасибо. |
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link 29.03.2010 10:31 |
Нашел: http://vsesnip.com/Data1/48/48969/index.htm |
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link 29.03.2010 10:31 |
(ГОСТ Р 52350.11-2005 Электрооборудование для взрывоопасных газовых сред. Часть 11. Искробезопасная электрическая цепь "i") |
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