I'm not sure if it is against code or not (I would be surprised if it is not), but I would run some new conduit. Separating phases like that is a really bad idea and conduit is really cheap.
Dave On 3/16/2016 12:26 PM, Todd Zuercher wrote: > Bringing back an older thread. Went to start ordering the things I need for > the update and noticed that the conduit to the machine isn't big enough for > the new wiring. Right now the 9 single phase circuits are run through two > 3/4" conduits (4 in one 5 in the other). would it be a really bad idea or > against regs, to split the 3ph wiring between the 2 conduits? (2+ground in > one and 1+nutral in the other) > > ----- Original Message ----- > From: "Gregg Eshelman" <g_ala...@yahoo.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Saturday, February 6, 2016 6:10:07 PM > Subject: Re: [Emc-users] Rewire Question? > > On 2/6/2016 3:23 PM, Dave Cole wrote: >> Make sure whatever you do that you have a way to lock out the main >> breaker in the off position. >> Osha wants to see that and it makes good sense. Make sure you also >> have a couple of red "lock out padlocks" around also. Keep one with >> your tools. >> I had a guy come up to me and ask what I was doing just as I was packing >> up my things after servicing a machine at a manufacturing plant. >> The idiot who was with him ( a plant management person ) failed to >> mention that he was an Osha enforcement guy so I explained what I had >> done and then the Osha guy introduced himself. >> He asked if I lockout the machines I work on and I just pointed at my >> lock hanging on my tool bag strap and said, there's my lock. The truth >> is that the machines are impossible to debug with the power off. But >> that doesn't matter, as they will happily fine you regardless. The >> fines normally start with 4 digit numbers. >> I don't visit that plant much any longer. They now ship the machines >> to another location so they can be serviced. Their safety "rules" are >> so difficult to deal with that it makes no sense to try and do work in >> that plant. For the same reason they can't keep any decent engineers >> or technicians at that location. I predict the plant will be closing >> within the next 5 years. The plant machinery will probably end up in >> Mexico. >> I'm all for being safe since it is my butt that is on the line, but >> there is a level of common sense that must be used. >> >> Osha and some plants seem to forget that from time to time. > On some other forum I read a post by a person who used to work in a shop > when a new CNC machining center was installed. > > From where the controls were, it was impossible to see the tools to jog > them into position if the door was closed. Open the door and nothing > could be moved. > > The fix was a wedge someone made to jimmy the door sensor so the > operator could see into the machine when jogging it. It could be quickly > removed if an inspector showed up. > > That's what happens when a machine is so over-saftied, it forces > operators to disable safety systems in order to make it usable. How it > should have been built is either with the controls mounted so that the > operator could see into the work space while standing at them, or the > door safety should only have locked out the spindle and turret > rotations, while limiting axis travel to slow speeds. That would have > made setting up quicker and safe. Select the tool, open door and set > position. Close door and select next tool. Repeat until all tools are set. > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
