Reply from Browns Ferry 1. Has anyone developed/implemented changes to their High Radiation Area Controls process that has resulted in appreciable efficiency gains for the Radiation Protection organization?
Yes - We developed a series or Radiological Control Hold Points (RPHPs) and notifications that were embedded in all operations procedures for those plant evolutions that can change radiological conditions in the plant. We have about 1100 RPHPs in the Operating instructions for the three units. RP then has and RCI for each of the units which tells the technicians and supervisors what areas need to be posted before signing off the RPHP. Safety functions are exempt from this so if Operations needs to scram or run RHR for the safety of the plant then they do it first and then notify RP. While it takes longer on the front end to get the program set up it really helps save time by not having to relearn everything when they change the configuration of the plan and removes this from knowledge based space. 2. What method do you use or what barriers do you put in place to ensure a RP technician returns a HRA/LHRA/VHRA key before leaving site at the end of his/her shift? Keys to LHRA cabinet controlled by RPSS. Cabinet has glass door and when a key is missing it is very visible. Oncoming shift reviews Keys 3. (For those using Sentinel) Does anyone use the "High Rad Keys" functionality in Sentinel to inventory, issue, and return HRA keys? Do not use Sentinel, use HIS-20 4. (For PWR only) Do you use lockable LHRA shield doors on your S/G manways during S/G maintenance activities in an outage? Not applicable -BWR If so, how do you "guard" the LHRA whenever the shield door is required to be unlocked/open (tool head change, camera change, etc.)? Who performs this "guard" function (RP, platform worker)? Have you developed a method for sampling air or taking radiation readings inside the channel head without unlocking/opening the shield door? Chuck Creamer Charles E. Creamer Health Physicist Tennessee Valley Authority Browns Ferry Nuclear Plant P.O. Box 2000 (Mail Stop NAB-1G-BFN) Decatur, Al. 35609-2000 Phone: 256-729-2983 Fax: 256-729-3101 Pager: 1-800-323-4853, pin 30-053 mailto:[email protected] This electronic message transmission contains information which may be TVA SENSITIVE, TVA RESTRICTED or TVA CONFIDENTIAL. Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message. From: Helton, Mark [mailto:[email protected]] Sent: Monday, December 05, 2016 7:54 AM To: [email protected] Subject: [powernet] RE: Efficiency Gains in HRA Controls TVA External Message. Please use caution when opening. I sent this request for information just prior to the Thanksgiving holiday and haven't received any responses yet so I'm resending just in case it didn't get to everyone or in case it's buried under many other emails received over the Holidays. I would appreciate any and all responses. From: Helton, Mark Sent: Wednesday, November 16, 2016 10:54 AM To: [email protected]<mailto:[email protected]> Subject: Efficiency Gains in HRA Controls I am looking for any ideas/responses regarding the following questions/issues... 1. Has anyone developed/implemented changes to their High Radiation Area Controls process that has resulted in appreciable efficiency gains for the Radiation Protection organization? 2. What method do you use or what barriers do you put in place to ensure a RP technician returns a HRA/LHRA/VHRA key before leaving site at the end of his/her shift? 3. (For those using Sentinel) Does anyone use the "High Rad Keys" functionality in Sentinel to inventory, issue, and return HRA keys? 4. (For PWR only) Do you use lockable LHRA shield doors on your S/G manways during S/G maintenance activities in an outage? If so, how do you "guard" the LHRA whenever the shield door is required to be unlocked/open (tool head change, camera change, etc.)? Who performs this "guard" function (RP, platform worker)? Have you developed a method for sampling air or taking radiation readings inside the channel head without unlocking/opening the shield door? Thank you in advance for all responses. Mark A Helton Sr Scientist - Rad Protection Catawba Nuclear Station 803-701-3777
