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Calvert County Tree Service
11780 MD-765 #201
Lusby MD 20657
410-657-8288
https://www.calvertcountytreeservice.com/
To vent the RCS when natural circulation move has been disrupted or blocked by an accumulation of non-condensable gases
Present closure of your SGBS isolation valves on receipt of a containment spray actuation sign to lessen the heat load over the service h2o process.
The staff reviewed parts of your UFSAR, like Segment nine.eight, "Plant Ventilation Units," to ascertain if there were any parts of the method that the applicant did not establish as throughout the scope of license renewal that must have been so discovered. The employees also reviewed Portion 9.8 on the UFSAR to determine if there have been any safety-linked procedure functions that were not recognized as intended features in the LRA, and to determine if there were buildings and elements possessing intended functions that might happen to be omitted from thing to consider inside the scope of license renewal. The personnel also reviewed the system to determine if any structures or parts not determined during the LRA as throughout the scope on the rule must have been so discovered less than ten CFR 54.4(a)(two) or 54.four(a)(three). The workers compared the protection-associated capabilities explained inside the UFSAR to those determined from the LRA. That can help be sure that Individuals portions of your ABHVS discovered as not in the scope of license renewal didn't accomplish any intended features and, therefore, wouldn't be matter to an AMR, the personnel asked for extra info with the applicant according to the knowledge inside the UFSAR and also the LRA.
The turbine developing for the CCNPP is popular to each models and is particularly oriented parallel on the Chesapeake Bay shoreline in between the North Service Creating plus the auxiliary constructing. It is just a steel structure with metal siding supported on reinforced-concrete foundations. The turbine building can be a seismic Category II framework.
With the reactor coolant pump bleedoff isolation valves inside of containment with the containment penetration for the isolation valve outside the house containment;
As described in Appendix A to the LRA, the RMS is intended to alert running staff about an ever-increasing radiation amount or abnormal radioactivity concentrations at chosen factors within the plant. This warning process may reveal a system or element malfunction that requires operator action, or it may complete automatic protecting steps to proper and/or isolate an irregular issue to prevent an uncontrolled release of radioactive substance to your ecosystem. The RMS also monitors the releases of radioactive effluents from your plant so which the releases never exceed allowable limits in accordance with ten CFR Portion fifty, and are taken care of ALARA in accordance with Appendix I to ten CFR Aspect fifty. The RMS is divided into two subsystems: the realm RMS and the process RMS.
Give circuit protection for the SG stress sign remaining despatched through the feedwater program towards the engineered safety functions actuation system plus the reactor protecting process.
The workers reviewed the knowledge in Section five.11B of Appendix A on the LRA and extra details submitted through the applicant in response to relevant RAIs. On The idea of this review, the personnel finds that there's fair assurance that the applicant has appropriately discovered the buildings and factors in the principal containment H&V process matter to an AMR in accordance with the requirements in 10 CFR fifty four.21(a)(1).
For fire safety-- Give a warmth sink for crucial shutdown cooling loads to be certain Secure shutdown inside the party of a hearth.
The employees also reviewed the non-electrical components inside the diesel fuel oil program to be able to find out whether or not the applicant has appropriately determined the structures and elements issue to an AMR. The staff members reviewed the knowledge in Table 5.7-1 of Appendix A to your LRA to ascertain which the applicant has discovered all elements which can be issue to an AMR.
Also recognized because of the applicant as in the scope of license renewal are particular non-basic safety-associated parts of your compressed air procedure expected for fire security in 10 her explanation CFR 54.4(a)(3). Incorporated are These portions from the the original source system that offer air to parts required to realize Protected shutdown in the event of the postulated fire, as needed by ten CFR Component fifty, Appendix R. Just about every in the compressed air procedure compressors, that is certainly, IA, PA, and SWA compressors, supports the fire protection meant purpose simply because they are relied on in postulated hearth eventualities. Crucial Protected-shutdown hundreds, which can be supplied with compressed air from possibly the security-linked or non-basic her response safety-relevant portions in the technique within the event of a hearth consist of service h2o valves, most important steam isolation valves, EDGs, saltwater valves, component cooling valves, security injection valves, and containment spray valves. On the other hand, the entire non-protection-related parts of the compressed air program subject matter to an AMR are evaluated in the hearth safety evaluation in Section 5.10 with the LRA. In Appendix A on the LRA, the applicant determined a complete of 29 machine forms throughout the safety-relevant portions on the compressed air technique as remaining throughout the scope of license renewal. Of such 29 device forms, the applicant identified ten which have been issue to an AMR. The 10 unit forms are piping; six valve kinds (check, Management aid, stress Manage, motor-operated and hand valve); air accumulator; filter; and pump (air amplifier). To the air-accumulator machine style, the applicant identified that protection-related parts that are integral towards the skid-mounted SWA compressors are excluded.
For devices qualification--Manage features of electrical components as tackled from the EQ software.
As discussed in Segment 5.4 of the CCNPP IPA methodology in Portion 2 of Appendix A on the LRA all 7 of the generic structural features are regarded as passive. In addition, plant structural factors usually are not normally topic to periodic substitute packages. Hence, structural parts are regarded as lengthy-lived, Except if certain justification is supplied to the contrary.
The purpose of your nitrogen and hydrogen devices as explained because of the applicant will be to retail store and distribute the demanded amounts of nitrogen for typical plant functions, to supply nitrogen for backup to the instrument air technique (however, the applicant reported this is now not in service), and to supply hydrogen to the key generators, the quantity control tanks, plus the radiological chemistry explosive gasoline storage space.