Watts Bar replies: For underwater use (ie. in the spent fuel pool), we use Raychem Corp tubing heat shrink PN WCSF-300-40N. We wrap the probe in electrical tape first. Otherwise the label/marking on the probe will be removed with the heat shrink. Then we place a small plastic FME cap on the end of the detector. Use additional tape to taper the transition from the cable to the detector for better sealing. Caution must be used so to not melt the cable insulation with the heat gun. We do this for both water intrusion and contamination prevention as we have to send our AMP-100s offsite for calibration.
-----Original Message----- From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of seth.kan...@aps.com Sent: Wednesday, February 08, 2012 12:12 PM To: powernet@hps1.org Subject: RE: Powernet: AMP-100 water intrusion Elizabeth, Mirion recommends that you spread a thick layer of silicone grease on the o-ring. I'm sure that your Instrumentation folks have several types, the key is to make sure that it is allowable under your chemical use program so that you don't introduce any contaminants into you primary systems. This is what we do and the seal maintains its water tightness. Seth. -----Original Message----- From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of eaem...@aep.com Sent: Wednesday, February 08, 2012 8:07 AM To: powernet@hps1.org Subject: Powernet: AMP-100 water intrusion DC Cook is evaluating methods to prevent water intrusion into AMP-100 instruments for underwater monitoring. Contract technicians mentioned the use of a non-conductive gel in the o-ring area. For those who are using this, can you provide material type/vendor, and under what conditions it can be used (SFP, cavity, etc)? Elizabeth Emily Associate Health Physicist Cook Nuclear Plant work: 269-465-5901 ext 2545 eaem...@aep.com ---------------------------------------------------------------- This e-mail message and all attachments transmitted with it from the Nuclear Generation Group of American Electric Power are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/powernet@hps1.org/ Reply to: powernet@hps1.org If Questions, contact Mike Russell, CHP at russe...@songs.sce.com --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission. ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/powernet@hps1.org/ Reply to: powernet@hps1.org If Questions, contact Mike Russell, CHP at russe...@songs.sce.com ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/powernet@hps1.org/ Reply to: powernet@hps1.org If Questions, contact Mike Russell, CHP at russe...@songs.sce.com
