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  1. swartzmech

    NEC clearance with cable tray

    Thanks very much dpc, 7anoter4, and controlsdude. BTW, all of my tray exits will be RGS.
  2. swartzmech

    NEC clearance with cable tray

    Does anyone know what the NEC clearance has to be from a cable tray containing #8's for power and an energized piece of equipment (A/C condenser & pump within metal enclosure)? Currently the tray is about 4' above the condenser.
  3. swartzmech

    P&ID symbology for stantion mounted e-stop?

    I would like to place a mushroom emergency stop button on a stantion, necessarily away from the process equipment. To depict on a P&ID, can I have a double headed arrow on/off the page connected with dashed line to a YS dcs bubble connected to a HS local bubble? This would be shown as...
  4. swartzmech

    PID Symbol for Emergency Stops

    Has anyone placed emergency stop buttons (with signal back to dcs)on their P&ID's for motor control, next to an HOA? Would you use something for the symbol identification like XSC for a user defined control switch?
  5. swartzmech

    IEEE 314 in Industrial Application

    Sorry guys, fingers were not following. Should be IEEE [b]344[b]
  6. swartzmech

    IEEE 314 in Industrial Application

    Does anyone have experience with IEEE 314 application for a MV VFD enclosure in non-nuclear power plants? Necessary in quiet seismic zone or overkill?

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