panic_button
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I had a licensed contractor install ATS even though I will be manually switching over to the MEP-3. The ATS is service disconnect also per specs. The inspector comes out today to approve the work. He all but done, says everythig looks great then asks to see the generator. Electrictian states generator is not ready to be installed yet, and it on the driveway. The inspector looks at the generator and says he won't approve the rest of the permit. He states that based on NEC rules I need a minium of 35KW generator. I chime in stating that the 10kw is at .8PF and it would be 12KW based on the 1PF that commercial units are rated at. He still says no way... So I come up with another plan, I have 2 MEP-3's currently, and if I run each one at 120v only I have 104A each to each leg of the switch, a total of 208A for both, well over the 200A service I have (actually 180A, they put in 2 -90A mains). He still says no way. I asked him how I can have 200A service from the power company, 200A breakers, the generators will put out over 200A easily why this won't work. He says it's against NEC code. I pull up the Kohler & Onan sites to get specs fro thier 35K commercial units Onan's biggest is 20kw on the web listed at 167A, Kohlers 40kw is 154A, I show him the mine will be over the amps that both of them are rated, and that a 40KW has less amps that the 20kw. He tells me it has to be at least 35kw to pass inspection...
Anyone with experience chime in on this besides changing over to a MTS. I'm not against a MTS.
Anyone with experience chime in on this besides changing over to a MTS. I'm not against a MTS.
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