LOT 203.02 Seismic Monitoring

Question 1

• LOT 203.02 Seismic Monitoring*
• • *

Where is the Triaxial Accelerograph unit physically located?

Answer 1

• *Unit 1 RCB in tendon gallery**
• Accessed from EAB*

Alarms on CP009 in Unit 1 MCR ONLY.

• Acceleration exceeds 0.02g in any direction.
• Loss of power.
• Instrument malfunction/failure

• Note:*
• Plugged into 120V wall outlet. Has 36 hr battery in case power is lost.*

Question 2

• LOT 203.02 Seismic Monitoring*
• • *

When must the Seismic Monitoring System be OPERABLE?

Answer 2

At all times

TRM 3.3.3.3 Seismic Instrumentation