[sudo-discuss] Replace Sudo elec outlets with GFI

[David Keenan]

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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