At 3:24PM Central Standard Time, an incident occurred in the vicinity of our Arlington Heights data center. A power line went down as a result of an accident. This created massive power surge that was greatly mitigated by our breakers and surge protectors but resulted in one short, inciting some smoke. This was detected by our VESDA double pre-action smoke detection system and the fire department quickly arrived on site. This initial incident did not affect our service provision. However, the fire department instructed us to begin an EPO (emergency power off) procedure on our battery backup units as a safety precaution in accordance with the fire department review. The safety inspector and our electricians were required to be on site and ensure a safe power up to safeguard against equipment damage before we were able to move forward. The moment that we were cleared for a power up, we began turning customers back on in phases (as per recovery procedure, so as to not overload PDUs) and with haste.
