Quote from: _oh_no_stop_this_ on Today at 02:37:13 PM

Quote from: The Pharmacist on June 13, 2021, 06:13:16 PM

Quote from: _oh_no_stop_this_ on June 13, 2021, 01:15:22 PM

Quote from: mejim on May 03, 2021, 11:35:25 PM

any smart security cameras or smart smoke detector installed there?

Not sure what's the definition of smart here, but there are regular cameras. No smoke detectors.

There are all sorts of "smart" devices these days, though the specific definition eludes me--I'm still not sure how the common 2007 cellphone turned into a smartphone other than the touchscreen and all the additional features.

I do have a question: mejim knew to ask if you had cameras, and you did have them. Is that standard for mining operations, however large or small? Are they for security in case of theft or for other reasons? As you can probably tell, I'm not a bitcoin miner but am very interested in it nonetheless. Also, I'm sorry this catastrophe happened to you. Looks like one hell of an expensive loss.

Philipma1957, do you have cameras in your setup?

I have a face recognition camera to enter the premises, then other cameras in and out the shed, so they are basically for security reasons. The main loss came from the unstable voltage levels (it is a consequence of sudden consumption drop on one of the phases). This burned some of the power supplies, so many units stopped working and needed to have their power supplies repaired.

Quote from: philipma1957 on June 13, 2021, 07:04:19 PM

Quote from: The Pharmacist on June 13, 2021, 06:13:16 PM

Quote from: _oh_no_stop_this_ on June 13, 2021, 01:15:22 PM

Quote from: mejim on May 03, 2021, 11:35:25 PM

any smart security cameras or smart smoke detector installed there?

Not sure what's the definition of smart here, but there are regular cameras. No smoke detectors.

There are all sorts of "smart" devices these days, though the specific definition eludes me--I'm still not sure how the common 2007 cellphone turned into a smartphone other than the touchscreen and all the additional features.

I do have a question: mejim knew to ask if you had cameras, and you did have them. Is that standard for mining operations, however large or small? Are they for security in case of theft or for other reasons? As you can probably tell, I'm not a bitcoin miner but am very interested in it nonetheless. Also, I'm sorry this catastrophe happened to you. Looks like one hell of an expensive loss.

Philipma1957, do you have cameras in your setup?

Cameras security locks and multiple circuits. With lots of redundant breakers.

We have lost a unit or two when we had water issues. A fire like he had would be unlikely.

God forbid as the room Has 1600 amps of 480 volts in it broken down into 3 phase.

The Transformers are large about 4 by 4 by 4

We simply have not been able to build out as much as the power would allow.

Second spot in another building on the grounds has the gpus.

It has 3x 30 amp 240 volt circuits and 4x 20 amp 120 circuits.
They are to 2 panels On is a 400 amp 240 volt the other is a 100 amp 120 volt.

This room has pc monitors if the gear goes down.

We had a lot of back up breaker action..

this pdu https://www.ebay.com/itm/164735882430? is what we use a lot.

it has 4x 15 amp breakers and 1 30 amp break it goes to a independent socket that has a 30 amp breaker in a 200 amp breaker panel

so for that kind of short to happen

1) the 15 amp breaker needs to fail in the pdu
2) and then the 30 amp breaker needs to fail on the pdu
3) then the 30 amp breaker needs to fail in the 200 amp panel
4)lastly the 200 amp breaker needs to fail.

if all that fails then we lose the transformers and the pair of 800 amp 480 volt panels = big $$$

the complex of buildings is about 1 city block and a worker lives in an apartment on site plus it is open 24/7/365

Impressive...

but to be clear it is not a farm site.

it is a warehouse site for food distribution.

the owner cut a long term deal for power dirt cheap and he lost an icecream company
he has about 300k-watts for us in two rooms in separate buildings