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The following information is excerpted fro … The following information is excerpted from an email received from United Controls International:</br>(In) August 2014, United Controls supplied four (4) time delay relays to Omaha Public Power-Fort Calhoun Station. The subject relay was qualified in accordance with IEEE 323-74/83, IEEE 344-1975/1987 and IEEE C37.98-1987, for use in mild environment safety related applications. </br>Per NRC Part 21 notifications, UCI was informed that the Allen Bradley relays base model 700RTC contain a Complex Programmable Logic Device (CPLD) which was unpublished. This design change could not be noticed since the external appearance of the relay and the relay part number remained the same. Hence, UCI has qualified the subject relay as solid state relay whereas the presence of the CPLD device elects the item as a digital device which can be affected by EMI/RFI noises.</br>At this time, UCI has no sufficient information to determine whether this design change would create a Substantial Safety Hazard as it relates to the plant applications for the subject relay.</br>Per the Nutherm Part 21 ML 1516IA230, Allen Bradley has indicated that a rolling change occurred from mid-2009 with no specific manufacturing date to distinguish between the old and the new configuration. Hence, all units manufactured during 2009 and later are suspect.</br>If you have any questions or wish to discuss this matter or this report, please contact:</br>Jim Garrison</br>Engineering Manager</br>jgarrison@unitedcontrols.com</br>770-496-1406 x 103</br>Affected facility: Omaha Public Power-Fort Calhoun Station</br>Part Number: 700-RTC-11200U1</br>Quantity: 4Part Number: 700-RTC-11200U1
Quantity: 4 +
04:00:00, 3 June 2015 +
51,243 +
16:48:00, 20 July 2015 +
04:00:00, 3 June 2015 +
The following information is excerpted fro … The following information is excerpted from an email received from United Controls International:</br>(In) August 2014, United Controls supplied four (4) time delay relays to Omaha Public Power-Fort Calhoun Station. The subject relay was qualified in accordance with IEEE 323-74/83, IEEE 344-1975/1987 and IEEE C37.98-1987, for use in mild environment safety related applications. </br>Per NRC Part 21 notifications, UCI was informed that the Allen Bradley relays base model 700RTC contain a Complex Programmable Logic Device (CPLD) which was unpublished. This design change could not be noticed since the external appearance of the relay and the relay part number remained the same. Hence, UCI has qualified the subject relay as solid state relay whereas the presence of the CPLD device elects the item as a digital device which can be affected by EMI/RFI noises.</br>At this time, UCI has no sufficient information to determine whether this design change would create a Substantial Safety Hazard as it relates to the plant applications for the subject relay.</br>Per the Nutherm Part 21 ML 1516IA230, Allen Bradley has indicated that a rolling change occurred from mid-2009 with no specific manufacturing date to distinguish between the old and the new configuration. Hence, all units manufactured during 2009 and later are suspect.</br>If you have any questions or wish to discuss this matter or this report, please contact:</br>Jim Garrison</br>Engineering Manager</br>jgarrison@unitedcontrols.com</br>770-496-1406 x 103</br>Affected facility: Omaha Public Power-Fort Calhoun Station</br>Part Number: 700-RTC-11200U1</br>Quantity: 4Part Number: 700-RTC-11200U1
Quantity: 4 +
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00:00:00, 20 July 2015 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
01:47:13, 2 March 2018 +
16:48:00, 20 July 2015 +
47.533 d (1,140.8 hours, 6.79 weeks, 1.563 months) +
04:00:00, 3 June 2015 +
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