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  1. Walter349

    Heavy Oil consumption after change of oil type

    I am running a pair of 65Kw IVECO generators in a redundant configuration. We recently changed from a 5W40 Synthetic to a 15W40 mineral lube oil. Now oil consumption has risen significantly. There is no immediate evidence from the exhaust of the oil being burned, except for some slight grey...
  2. Walter349

    Working on Stored Energy devices (UPS)

    Its being corrected, but trying to get a proper corrective action plan in being is proving..... Difficult. The Isolation issue, secondary by-pass etc is also on the list. I have yet to see anything, even vaguely resembling a wiring diagram and the original design called for redundant...
  3. Walter349

    Working on Stored Energy devices (UPS)

    I remember the permit for work system, as I worked on Nuclear power station for a few years. Won't work in this case. for whole host of reasons. My main concern is get the work done by a demonstrably competent person, to anything like a standard. That means if anything goes 'Sputz!' later, we...
  4. Walter349

    Working on Stored Energy devices (UPS)

    Ahh the poor benighted souls living in the backwaters across the pond. The 16th Edition and 17th Edition are the IEEE Wiring regulations, 17th being the most recent. We have some emergent issues with UPS modules. The corrective action is a technical intervention in the modules, requiring the...
  5. Walter349

    Working on Stored Energy devices (UPS)

    Can anyone advise on whether there is a need for a specific electrical qualification to work on the internals of UPS devices, or if a 16th edition qualified electrical engineer can do so, without impacting safety, H&S and insurance concerns.
  6. Walter349

    Data Center Temperature

    I have always made it a basic rule of thumb that if you feel comfortable in a datacentre, then its too warm. I keep mine at 18 deg C ambiant temp. Serviced by two ceiling, omni directional A/C units, with forced air venting to the cabinets.
  7. Walter349

    Concrete construction

    I am working for a company who is installing cabins, which are ISO shipping containers in general description. The problem is, that the original plan was to install them onto reinforced concrete rafts. However, citing cost constraints, the program manager has changed this and substituted four...

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