From Callaway These devices are not subject to RP controls. This whole thing comes from the Radiation Control Act of 1968. The assumptions of ANSI C37.85 include 500 milliroentgens per year, with 2000 hi pot tests per year, at a distance of one meter.
We have briefed the electrical supervisors to comply with the manufacturers hi pot testing protocols, including the gap settings and potential used. Siemens has a decent primer at Tech Topics, bulletin 14. Www.usa.siemens.com/techtopics<http://Www.usa.siemens.com/techtopics> Dewey 314.225.1061 Sent from my iPhone On Nov 11, 2014, at 11:27 AM, Sumrall, Matthew <[email protected]<mailto:[email protected]>> wrote: Do any of your facilities use a vacuum interrupter type electrical circuit breaker that is known to emit X-rays during high-potential testing? If so, what controls (if any) do you have on the breakers during normal use and specifically during high-potential testing? Thanks, Matt Sumrall Sr. Health Physicist STP Nuclear Operating Co. [email protected]<mailto:[email protected]> (361) 972-4597 The information contained in this message may be privileged and/or confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. Note that any views or opinions presented in this message are solely those of the author and do not necessarily represent those of Ameren. All e-mails are subject to monitoring and archival. Finally, the recipient should check this message and any attachments for the presence of viruses. Ameren accepts no liability for any damage caused by any virus transmitted by this e-mail. If you have received this in error, please notify the sender immediately by replying to the message and deleting the material from any computer. Ameren Corporation
