4 ms·
It may be something simple as a shor tbetween the phases. In power engineering these are called fault conditions and the currents can run up to tens of thousand
by gaudat 4y ago
It may be something simple as a shor tbetween the phases. In power engineering these are called fault conditions and the currents can run up to tens of thousands of amps before the circuit breaker acts. Not sure if you can imagine the magnitude but that is why the standard PPE in working with on-line low voltage (<1 kV) switchgear is a full body silver arc flash suit.
Now imagine if the datacenter guys need to wear that suit before going down the racks...
- mc32 4y agoThere are unknowns to us. But, no I don't imagine regular detacenter folks walking around in PPE --unless they are going in to these segregated areas to address a known issue. Maybe it was totally unpredictable --like someone just walking in proximity to said equipment just as it was about to catastrophically fail, but in most accidents there was a known bad condition, techs go in to check things out and then go back in to bring in the certified electrician or whatever and in those instances people are supposed to don proper equipment and follow certain procedure typically involving cutting power away from the faulty equipment, though sometimes people cut the wrong power or altogether forget that step in the SOP. Sometimes the diagrams are outdated --CBF is old now, I think?