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Planned maintenance activities are being p … Planned maintenance activities are being performed today (June 22, 2012) on the Hatch Nuclear Plant's Technical Support Center's (TSC) 480V AC distribution panel (1R25-S102). This work activity is planned to be performed and completed expeditiously within about 4 hours. This maintenance activity is to provide temporary power to the 480V AC distribution panel (1R25-S102). The temporary power is needed to support implementation of DCP 1060789901 which replaces two existing Allis Chalmers LA-600 circuit breakers installed in Motor Control Center 1B (1R24-S026) the normal power for the TSC 480V AC distribution panel. The installation of the temporary power will eliminate the need to have the TSC out of service for an extended period of time. During the time in which the normal power supply is isolated until the temporary power is restored the TSC ventilation system will be out of service which will rendered the TSC non-functional under TRM T 3.10.1.</br>If an emergency condition occurs that requires activation of the Technical Support Center during this work activity, it will take about one hour to return the equipment back to functional status dependent on the stage of the work activity at the time the emergency occurs. Plans are to utilize the TSC for any declared emergency during the time the work activity is being performed as long as radiological conditions allow. Procedure 73EP-EIP-063-0, Technical Support Center Activation, provides instructions to direct TSC management to the Control Room and TSC support personnel to the Simulator Building to continue TSC activities if it is necessary to relocate from the primary TSC.</br>This event is reportable per 10 CFR 50.72 (b)(3)(xiii) as described in NUREG-1022, Rev. 1 since this work activity affects an emergency response facility for the duration of the evolution.</br>The licensee has notified the NRC Resident Inspector.</br>* * * UPDATE AT 0245 EDT ON 06/23/12 FROM STEVE BURTON TO S. SANDIN * * *</br>The TSC was returned to service at 0215 EDT on 6/23/12. </br>The licensee will inform the NRC Resident Inspector. Notified R2DO(Blamey).esident Inspector. Notified R2DO(Blamey).
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17:30:00, 22 June 2012 +
Planned maintenance activities are being p … Planned maintenance activities are being performed today (June 22, 2012) on the Hatch Nuclear Plant's Technical Support Center's (TSC) 480V AC distribution panel (1R25-S102). This work activity is planned to be performed and completed expeditiously within about 4 hours. This maintenance activity is to provide temporary power to the 480V AC distribution panel (1R25-S102). The temporary power is needed to support implementation of DCP 1060789901 which replaces two existing Allis Chalmers LA-600 circuit breakers installed in Motor Control Center 1B (1R24-S026) the normal power for the TSC 480V AC distribution panel. The installation of the temporary power will eliminate the need to have the TSC out of service for an extended period of time. During the time in which the normal power supply is isolated until the temporary power is restored the TSC ventilation system will be out of service which will rendered the TSC non-functional under TRM T 3.10.1.</br>If an emergency condition occurs that requires activation of the Technical Support Center during this work activity, it will take about one hour to return the equipment back to functional status dependent on the stage of the work activity at the time the emergency occurs. Plans are to utilize the TSC for any declared emergency during the time the work activity is being performed as long as radiological conditions allow. Procedure 73EP-EIP-063-0, Technical Support Center Activation, provides instructions to direct TSC management to the Control Room and TSC support personnel to the Simulator Building to continue TSC activities if it is necessary to relocate from the primary TSC.</br>This event is reportable per 10 CFR 50.72 (b)(3)(xiii) as described in NUREG-1022, Rev. 1 since this work activity affects an emergency response facility for the duration of the evolution.</br>The licensee has notified the NRC Resident Inspector.</br>* * * UPDATE AT 0245 EDT ON 06/23/12 FROM STEVE BURTON TO S. SANDIN * * *</br>The TSC was returned to service at 0215 EDT on 6/23/12. </br>The licensee will inform the NRC Resident Inspector. Notified R2DO(Blamey).esident Inspector. Notified R2DO(Blamey).
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