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Recent content by louis

  1. louis

    Planner Interaction with Project Managers

    While their PC skills may be lacking, do they use Gantt Charts or PERT Charts? If so, they may be of the old school where specialist prepared these items for the PM. In my case, only 2 out of 20 PM used any software. Most of the projects were very simple in scheduling with a single path from...
  2. louis

    Planner Interaction with Project Managers

    RDK is right on the money about not being a conduit of information to the project managers' supervisors. However, the planning tool itself may serve that function which leaves CosmicChris as the scapegoat. Where I worked before, the planning software was mandated by upper management to be used...
  3. louis

    Outdoor detection recommendation

    From what I heard at the Spring NFPA meeting, I suspect the AHJ will agree to heat detectors.
  4. louis

    PSI at top of standpipe

    It might be due to the special design of high-rise buildings. I understand that they may be equipped with pressure-reducing valves at the hose connections. I also note that the exemptions are missing from the 2003 edition. Perhaps the reason for the exemptions has gone or lost its voice on...
  5. louis

    timers in detection system per NFPA 72

    I have run into the use of a timer to disable a detector in a local alarm system. The detector is in a welding shop remote from the control panel. When the timer is activated, a trouble signal is sent to the control panel and it cuts the power to the detector for up to thirty minutes. It...
  6. louis

    Why branch and tree is preffered?

    I expect that what you have seen is a specification based on pipe schedule. The main and branch configuration is much simpler to design while producing an adequate system. The grid systems can be cheaper and more efficient (regarding materials), but require more complex calculations to ensure...
  7. louis

    t = $$$

    Some refereed journals have put their magazines on line, but you must subscribe to them.&nbsp;&nbsp;Publication of a good journal is expensive with a limited readership.&nbsp;&nbsp;It is a time and quality equal money problem.<br><br>For industrial journals, I get many free...

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