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  1. Replies
    0$$
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    684

    DC Controller Disconnect

    Hi, It's been a while since I have been here.
    A client bought a used wire drawing machine. It consists of 4 125HP DC motors among other loads. Each motor has its own DC drive with its own AC feed....
  2. Thread: Welder Load Calc

    by Nick
    Replies
    1$$
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    1,848

    Welder Load Calc

    I have a question I am not sure there is a perfect answer for so I guess I am just looking for opinions. At a welding shop there are 4 custom made welding machines. They are an automated process and...
  3. Thread: Welder Load Calcs

    by Nick
    Replies
    1$$
    Views
    4,148

    Welder Load Calcs

    I am having trouble figuring out how to size the following scenario.
    I have a customer that has an existing installation of 4 welders. They are automated machines and they were built by the customer...
  4. Thread: Wbe,mbe

    by Nick
    Replies
    7$$
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    1,851

    The company I work for is a WBE. Over the last...

    The company I work for is a WBE. Over the last two years in the public works sector I have seen projects requiring more DBE & SBE. Even then it is only a goal not a requirement. The GC just has to...
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    30$$
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    6,222

    With most Municipalities yes. They have to list...

    With most Municipalities yes. They have to list their subs and the results are posted to the web.
  6. Replies
    30$$
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    6,222

    The suppliers know that game and which...

    The suppliers know that game and which contractors play it. All that does is get you a higher price at bid time in anticipation of you beating them down later.
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    19$$
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    4,217

    The EMT and connectors are exactly NECA Col 1...

    The EMT and connectors are exactly NECA Col 1 labor. The couplings are something less than Col 1. Looks to me like you are getting a deal as change orders should be charged at Col 2 or 3.
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    5$$
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    1,373

    I have the whole catalogue but it's to big to...

    I have the whole catalogue but it's to big to attach. PM me your e-mail and I'll send it.
  9. Replies
    5$$
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    1,373

    http://www.leviton.com/OA_HTML/ibeCCtpSctDspRte.js...

    http://www.leviton.com/OA_HTML/ibeCCtpSctDspRte.jsp?section=10108&minisite=10021&sitex=10021:22372:US
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    44$$
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    8,230

    Same thing going on on the larger jobs. There...

    Same thing going on on the larger jobs. There aren't any really big jobs out around us ($20M +) but we have been bidding quite a few in the up to $10M range. Most of the bids are all over the map. We...
  11. Replies
    33$$
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    6,273

    In public works contracting law the bid goes to...

    In public works contracting law the bid goes to the lowest responsible bidder. In most cases this is the GC. Each GC usually has to list their subs. So prior to submitting there bid they have to...
  12. Replies
    1$$
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    3,361

    Article 392 Cable Tray

    This section has always been confusing and doesn't make much logical sense. Maybe someone can shed some light on this particular section.
    392.10(A)(1) (2005 NEC) tells us cables 1000 kcmil and...
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    8$$
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    9,992

    Just a tidbit of useless information: The pre...

    Just a tidbit of useless information:
    The pre molded kits, heat shrink or cold shrink, are not "Stress Cones." The term is used very loosely in the industry. They use a capacitive form of stress...
  14. Thread: estimating

    by Nick
    Replies
    8$$
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    2,694

    We generally try to have one estimator do the...

    We generally try to have one estimator do the entire project manly due to the reasons listed above. When the time to bid doesn't allow that we split it up. How you split it up will depend on how the...
  15. Thread: medium voltage

    by Nick
    Replies
    15$$
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    3,770

    Zog, I recently did a large water treatment...

    Zog,
    I recently did a large water treatment plant where the specs called for 480V systems, 4160V systems and the 12KV systems to all be brown orange yellow. It didn't make any sense but they...
  16. Thread: medium voltage

    by Nick
    Replies
    15$$
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    3,770

    The standard in my area is Yellow, Red, Blue

    The standard in my area is Yellow, Red, Blue
  17. Replies
    69$$
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    9,208

    Poll: I believe about 1200 electricians and several...

    I believe about 1200 electricians and several hundred office employees. I lost count a long time ago.
    Like RockyD I worked in Vegas about 15 years ago. It was on Treasure Island. There is...
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    5$$
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    7,954

    Don't bother trying to deduct the pipe and rebar...

    Don't bother trying to deduct the pipe and rebar area unless you are installing trench forms. When using dirt forms the real world is far from perfect and you will use that small amount of extra...
  19. Thread: HV J-Box sizing

    by Nick
    Replies
    6$$
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    1,802

    :confused: Please explain why you would...

    :confused:

    Please explain why you would splice 5KV in a j-box like this. Just curious.
  20. Replies
    2$$
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    2,495

    http://www.udevices.com/racks1.htm These work...

    http://www.udevices.com/racks1.htm
    These work very well
  21. Replies
    214$$
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    53,798

    I was at a big box store a few years back looking...

    I was at a big box store a few years back looking for a replacement halogen lamp. They did not have the wattage I needed so I asked the helper to get me another one of a different (lower) wattage. He...
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    20$$
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    7,314

    I see your from Huntington Beach. As mentioned...

    I see your from Huntington Beach. As mentioned before they have been requiring this for years. Be prepared to do it on any job you do there. BTW, for some reason HID lighting can be the cause of a...
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    1,176

    Does your Co-Gen have black start capability and...

    Does your Co-Gen have black start capability and can it start and transfer load within 10 seconds?
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    28$$
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    4,724

    Los Angeles Department of Water and Power. That...

    Los Angeles Department of Water and Power. That is local 18 a Utility Local
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    20$$
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    4,038

    I have been using Carbonite for personal backup...

    I have been using Carbonite for personal backup for a little over a year. I have been very happy with it. I got tiered of trying to remember to back up onto DVD's and I still had the problem of a...
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