V. C. Summer has been conducting the Shutdown and Control Rod Drop Timing Technical Specification required surveillance using the plant process computer since 1991. Prior to that a strip chart recorder (Visicorder) was used to perform this test. A condition report was recently initiated that asks whether or not this is an appropriate method of testing. The Visicorder was a calibrated field standard while the plant computer is not. We are now trying to determine how to demonstrate the timing accuracy of the plant computer for use in rod drop testing.
1. Does your plant use the plant computer or another computer for rod drop testing? If yes do you perform any type of timing accuracy test for such a computer and how do you perform such a test.
2. If you do not use a computer to perform rod drop testing what method do you use to confirm you meet the required rod drop time?
Please email or call Bill Bell with your response to this survey.
William H. Bell, PE Chemical Engineer Reactor Engineering V. C. Summer Station South Carolina Electric & Gas Co. 803-345-4389
Bill, We use AMS rod drop time equipment.
From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of BELL, WILLIAM H Sent: Wednesday, December 08, 2010 2:14 PM To: pwrrm@retaqs.com Cc: BELL, WILLIAM H; BRYSON, DAMON V Subject: [Pwrrm] VC Summer Survey on Rod Drop Testing
V. C. Summer has been conducting the Shutdown and Control Rod Drop Timing Technical Specification required surveillance using the plant process computer since 1991. Prior to that a strip chart recorder (Visicorder) was used to perform this test. A condition report was recently initiated that asks whether or not this is an appropriate method of testing. The Visicorder was a calibrated field standard while the plant computer is not. We are now trying to determine how to demonstrate the timing accuracy of the plant computer for use in rod drop testing.
1. Does your plant use the plant computer or another computer for rod drop testing? If yes do you perform any type of timing accuracy test for such a computer and how do you perform such a test.
2. If you do not use a computer to perform rod drop testing what method do you use to confirm you meet the required rod drop time?
Please email or call Bill Bell with your response to this survey.
William H. Bell, PE Chemical Engineer Reactor Engineering V. C. Summer Station South Carolina Electric & Gas Co. 803-345-4389
CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and/or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.
1. Diablo Canyon contracts out the rod drop time testing to AMS, who uses their data acquisition equipment connected at the DRPI cabinets.
2. We use the AMS software to confirm rod drop time.
Diablo Canyon Rod Control System Engineer Mike Sullivan (805 545 3518) is the contact for the AMS contract.
Ken Kargol Diablo Canyon Power Plant Reactor Engineering 805 545 4075
________________________________
From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of BELL, WILLIAM H Sent: Wednesday, December 08, 2010 11:14 AM To: pwrrm@retaqs.com Cc: BELL, WILLIAM H; BRYSON, DAMON V Subject: [Pwrrm] VC Summer Survey on Rod Drop Testing
V. C. Summer has been conducting the Shutdown and Control Rod Drop Timing Technical Specification required surveillance using the plant process computer since 1991. Prior to that a strip chart recorder (Visicorder) was used to perform this test. A condition report was recently initiated that asks whether or not this is an appropriate method of testing. The Visicorder was a calibrated field standard while the plant computer is not. We are now trying to determine how to demonstrate the timing accuracy of the plant computer for use in rod drop testing.
1. Does your plant use the plant computer or another computer for rod drop testing? If yes do you perform any type of timing accuracy test for such a computer and how do you perform such a test.
2. If you do not use a computer to perform rod drop testing what method do you use to confirm you meet the required rod drop time?
Please email or call Bill Bell with your response to this survey.
William H. Bell, PE
Chemical Engineer
Reactor Engineering
V. C. Summer Station
South Carolina Electric & Gas Co.
803-345-4389
-
BELL, WILLIAM H -
Jeffrey A Camp -
Kargol, Kenneth