[sudo-discuss] Replace Sudo elec outlets with GFI

[David Keenan]

Whitney, that'd be great. Thank you!

David

On Tue, Jan 27, 2015 at 12:55 PM, Whitney Lawrence <whitneyel3 at gmail.com>
wrote:

> I can come by this evening to take a look. I left a label on the panel and
> color coded the wiring with electrical tape just in case the labels were
> lost/removed etc.
>
> On Tue, Jan 27, 2015 at 12:41 PM, David Keenan <dkeenan44 at gmail.com>
> wrote:
>
>> Excellent, thanks for that input. I think there's a few circuits on the
>> upstairs subpanel that are Sudo's - Rayc labelled the one that flipped I
>> believe, but all sudo's circuits should all be so marked next time someone
>> who knows gets a chance (Whitney?)
>>
>> I believe the circuits are 30A & 1 70A for the robot, but I'm going from
>> memory here -
>>
>> - Can someone confirm which circuits are Sudos on the 'crow's nest'
>> subpanel, and tell the list what those circuits are rated at? (And label /
>> write with sharpie 'Sudo' next to them on the panel)? Whitney, I don't know
>> if you remember this or have notes of it -
>>
>> - Can someone with skillz pass on links to suitable isolation
>> transformers that are currently on eBay?
>>
>> Best,
>> David
>>
>>
>> On Tue, Jan 27, 2015 at 12:00 PM, Steve Berl <steveberl at gmail.com> wrote:
>>
>>> As long as the isolation transformer has current limiting fuse/breaker,
>>> which has a lower limit than the main breaker, this should help and be
>>> safer for the experimenters.
>>>
>>> -steve
>>>
>>> On Tue, Jan 27, 2015 at 11:49 AM, David Keenan <dkeenan44 at gmail.com>
>>> wrote:
>>>
>>>> Adam was there and I feel can explain far better than I why the breaker
>>>> flipped, but we do know why it occurred.
>>>>
>>>> In the most basic language folks are shorting the circuit by working on
>>>> electronics & machines that are connected up to power. So it's not that the
>>>> circuit is being 'overloaded' by say drawing too many Amps, its from a
>>>> miswire -
>>>>
>>>> Since you asked it was the gentleman named Sam with the electric
>>>> motorbike, who was working on a project (looked like a motor, or?) that
>>>> flipped the breaker. Not sure if I have said person's email but presumably
>>>> they are on this list -
>>>>
>>>> It's important for me to say that Sudo is around precisely for such
>>>> experimentation and hackery and Sam should not feel badly for flipping the
>>>> breaker. Rather, I feel we need to create safer workspaces and workflows
>>>> (as much as we can at any rate) for such experimentation to take place so
>>>> that upstream consequences for the rest of the building are minimized.
>>>>
>>>> Best,
>>>> David
>>>>
>>>> On Tue, Jan 27, 2015 at 11:41 AM, Steve Berl <steveberl at gmail.com>
>>>> wrote:
>>>>
>>>>> If people are overloading the circuit breakers, or the breakers are
>>>>> tripping at lower than designed currents, this will not help.
>>>>>
>>>>> Before buying anything you should figure out why the breakers are
>>>>> tripping.
>>>>>
>>>>> -steve
>>>>>
>>>>> On Tue, Jan 27, 2015 at 11:38 AM, David Keenan <dkeenan44 at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Killer. Adam - since I obviously lack the technical literacy to scope
>>>>>> eBay for the properly right stuff, might this be something you'd be willing
>>>>>> to look for on our behalf - i.e., pass on links to some Adam-approved eBay
>>>>>> isolation transformers)?
>>>>>>
>>>>>> If Sudo does not have the funds to hand to acquire these, depending
>>>>>> on the cost I will make a request of Omni Commons to purchase. As I see
>>>>>> this as something that will help us pass our Fire Life & Safety inspection
>>>>>> for the building..
>>>>>>
>>>>>> David
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Tue, Jan 27, 2015 at 11:21 AM, Adam Munich <adam at aperture.systems>
>>>>>> wrote:
>>>>>>
>>>>>>> It would be better to get something like this on eBay, because
>>>>>>> large, ie several kilowatt transformers typically can be had for pennies on
>>>>>>> the dollar there. Low voltage transformers really don't go bad so the age
>>>>>>> doesn't matter.
>>>>>>> On Jan 27, 2015 11:19 AM, "David Keenan" <dkeenan44 at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Yes to this Adam, thank you. I searched around and found a product
>>>>>>>> like this
>>>>>>>> <http://www.officedepot.com/a/products/147370/Tripp-Lite-IS1000HG/?cm_mmc=PLA-_-Google-_-Computer_Tablet_Accessories-_-147370-VQ6-42102167876-VQ16c-VQ17-pla-VQ18-online-VQ19-147370-VQ20-72939322076-VQ21-> -
>>>>>>>> Adam would you say this is the right sort of product for sudo or can you
>>>>>>>> reccomend a better / more affordable one?
>>>>>>>>
>>>>>>>> David
>>>>>>>>
>>>>>>>> On Tue, Jan 27, 2015 at 11:09 AM, Adam Munich <
>>>>>>>> adam at aperture.systems> wrote:
>>>>>>>>
>>>>>>>>> I think the ideal solution here would be to get some form of
>>>>>>>>> isolation transformer with an in-line breaker for when people want to fuck
>>>>>>>>> with the line. In this way it is very difficult to a) electrocute yourself
>>>>>>>>> and b) cause damage to the circuits.
>>>>>>>>>
>>>>>>>>> Further if we ever get a safety inspection this would appease
>>>>>>>>> people swiftly.
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> sudo-discuss mailing list
>>>>>> sudo-discuss at lists.sudoroom.org
>>>>>> https://lists.sudoroom.org/listinfo/sudo-discuss
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> -steve
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> -steve
>>>
>>
>>
>
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