The purpose of this outage is to perform maintenance and testing on the main electrical switchgear that distributes power throughout PEDs. This requires de-energizing the switchgear so that we can safely and effectively perform the required work. We will do this in two outages, de-energizing and working on one half of the switchgear for each outage. This will be the first outage on May 1st 7 am – 11 am, the second outage will take place on May 15th. This work will ensure that the main electrical system will continue to provide safe and reliable power. This outage will affect the Bus Duct Risers from 3rd through 10th floors. All receptacle, lighting and equipment connected to normal power on these floors will be off during this outage. There will be generator back up power for the lights, and equipment connected to the emergency power system. The LL, 1st, 2nd, and 11th floors should remain unaffected by this outage. This outage will also affect CSRB, Chillers 01 & 02. These chillers will be off for the duration of the outage.