Define Circuit Cables for Intrinsic Safety Loop Calculation - Intergraph Smart Instrumentation - Help

Intergraph Smart Instrumentation Help

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English
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Intergraph Smart Instrumentation
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Smart Instrumentation Version
13.1

Before calculating intrinsic safety for a loop, you must perform this procedure for each cable in the circuit.

  1. In the Domain Explorer, right-click a cable, and on the short-cut menu, select Properties.

  2. On the Cable Properties dialog, beside the Type list, select .

  3. On the Cable Types dialog, select the required row, and then select Properties.

    SHARED Tip You can also create a new intrinsically safe circuit type.

  4. On the Cable Type Properties dialog, make sure that you express the following parameters in the following units of measure:

    • CapacitancenF (nanoFarad) / km

    • ResistanceOhm/km

    • InductancemH/km

  5. Select OK to close the Cable Type Properties dialog.

  6. Make sure that the row that you require is selected and then select OK to close the Cable Types dialog.

  7. On the Cable Properties dialog, under Unit of measure, select meter.

  8. Under Length, define the cable length.

  9. Select the Set as intrinsically safe check box, and then select OK.