Re: [sudo-discuss] Electrical detail draft

Hi Whit, Sorry I didn't write back to your previous post! I am super glad you're here, your skills are exactly what is needed. I would say that you have more experience running pipe and wire and installing outlets than I do, so I will call you the lead on making this happen. I looked at the attached PDF (I hope you saw the spreadsheet I made too) and I think that your map is very complete. I had been thinking of about half as many outlets, but you are right to suggest we do the job right the first time, rather than rushing to get it done. That said, if we find ways to leave some outlets for later (after the upcoming fire inspection) we should keep in mind that the priority right now is to eliminate use of extension cords, and do so ASAP. We can always add more service later. As for service levels, I believe the standard 20 amp breaker for each leg of outlets (shared by two boxes of two duplex sockets each) will be plenty for all outlets. we will not be running more than one 20A circuit worth of servers or anything else, and the only high-power users are temporary things like occasional power tools. About the robot: the breaker labeled for it (in the middle on the right, at the balcony panel) is connected right now! you can see the wire running down to its control box. It is "temporary" but has been very important in working on the robot to figure out what we need next. I would like for us to add service (red black white and green) to the area you listed as "Plug J" for the robot, since it will be located there according to consensus. The building does not have 3-phase power though, so I will be doing some electronics magic to make the thing run anyway. I looked into the hanging outlets phenomenon (the ceiling beams are pretty high in sudoroom) and I don't think we should hang extension cords.. are you familiar with the "correct" way to make power drops? I believe one is supposed to use twist-lok cord-mounted sockets on tension-rated cords, grabbed by special strain reliefs when they leave the junction boxes high up. Then one can make regular outlet boxes with twist-lok plugs to connect to the hanging service.. but i really don't know what's "right". Anyway, since you're the lead on this project, please let us (sudoroom and the omni) know what your budget is (consider editing the spreadsheet I made) and when you are available to start. Also, please tell us how many helpers you want and when, and what skills are desirable. I volunteer myself both for electrical work (i do have those skills) and for helping coordinate other volunteers. I can also help get supplies, when we know exactly what to get. After we complete the installation, we will hire a professional electrician to inspect our work and sign off on it, so we can be partially reimbursed by the landlord. thank you -jake 415-533-3699 On Sun, 17 Aug 2014, Whitney Lawrence wrote: