RS-13-256, Additional Information Regarding Request for License Amendment to Revise Battery Surveillance Requirements

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Additional Information Regarding Request for License Amendment to Revise Battery Surveillance Requirements
ML13297A266
Person / Time
Site: Quad Cities  Constellation icon.png
Issue date: 10/24/2013
From: Simpson P
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-13-256, TAC MF2297, TAC MF2298
Download: ML13297A266 (35)
v • d • e


Text

{{#Wiki_filter:RS-1 3-256 October 24, 2013 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 NRC Docket Nos. 50-254 and 50-265

Subject:

Additional Information Regarding Request for License Amendment to Revise Battery Surveillance Requirements

References:

1. Letter from P. R. Simpson (Exelon Generation Company, LLC) to U.S. NRC, "Request for License Amendment to Revise Battery Surveillance Requirements," dated June 10, 2013 2. Email from B. Mozafari (U.S. NRC) to K. Nicely (Exelon Generation Company, LLC), "Quad Cities, Units 1 and 2 RAI for LAR Request Re: Battery Surveillance SRs (TAC Nos. MF2297 and MF2298)," dated September 13, 2013 In Reference 1, Exelon Generation Company, LLC (EGC) requested an amendment to Renewed Facility Operating License Nos. DPR-29 and DPR -30 for Quad Cities Nuclear Power Station (QCNPS), Units 1 and 2, respectively. The proposed change revises Technical Specifications (TS) Surveillance Requirements (SR) 3.8.4.2 and SR 3.8.4.5 to add new acceptance criteria for total battery connection resistance. The NRC requested additional information that is needed to complete the safety evaluation in Reference 2. In response to this request, EGC is providing the attached information. EGC has reviewed the information supporting a finding of no significant hazards consideration, and the environmental consideration, that were previously provided to the NRC in Attachment 1 of Reference 1. The additional information provided in this submittal does not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration. In addition, the additional information provided in this submittal does not affect the bases for concluding that neither an environmental impact statement nor an environmental assessment needs to be prepared in connection with the proposed amendment.

October 24, 2013 U.S. Nuclear Regulatory Commission Page 2 There are no regulatory commitments contained in this letter. Should you have any questions concerning this letter, please contact Mr. Kenneth M. Nicely at (630) 657-2803. I declare under penalty of perjury that the foregoing is true and correct. Executed on the 24th day of October 2013. Attachments: 1. Response to Request for Additional Information 2. Procedure QCEPM 0100-01, "Station Battery Systems Preventive Maintenance," Revision 41 3. Supporting References cc: NRC Regional Administrator, Region III NRC Senior Resident Inspector-Quad Cities Nuclear Power Station Illinois Emergency Management Agency - Division of Nuclear Safety

ATTACHMENT I Response to Request for Additional Information NRC Request 1 On Page 4 of Attachment 1, the licensee stated that based on additional evaluations, EGC has determined that it is appropriate to include total battery connector resistance limits within the Technical Specifications (TS) Surveillance Requirements (SRs) given the relationship between battery operability and connector resistance. The inter-cell and terminal connections (i.e., inter-tier and inter-rack connector cables and connections) between the cells contribute to the total battery connector resistance, which reduces the overall battery terminal voltage.

a. Clarify whether the proposed total battery connection resistance limits, as proposed in the LAR for SRs 3.8.4.2 and 3.8.4.5, are the operability limit of the overall battery resistance for QCNPS, Units 1 and 2 batteries.
b. Provide the operability limits for QCNPS, Units 1 and 2, battery inter-cell and terminal connections.

c. Clarify the intent of leaving the leaving the <_1.5 E-4 ohm value in the SRs 3.8.4.2 and 3.8.4.5.

Response

The proposed total battery connection resistance limits, as proposed in the license amendment request for SRs 3.8.4.2 and 3.8.4.5, are the operability limits of the overall battery resistance. As required by SR 3.0.1, failure to meet the SRs shall be failure to meet the limiting condition for operation. TS SRs 3.8.4.2 and 3.8.4.5 establish the requirement to perform inspections and measurements to detect localized battery connector degradation. The 150 micro-ohm value was added as an enhancement to the TS during the conversion to the Standard Technical Specifications (i.e., NUREG-0123) in the 1995 timeframe. A measurement of inter-cell and terminal connection resistance provides an indication of localized deterioration that could unacceptably degrade local battery performance if left uncorrected. The specific resistance value (150 micro-ohms) was not initially established as an absolute limit for battery operability. The value was based on industry experience as a threshold for identifying localized degradation so that issues potentially affecting battery performance are promptly identified and corrected. SRs 3.8.4.2 and 3.8.4.5 will continue to serve this function, while the proposed expanded SRs provide the necessary surveillance of total battery resistance to ensure battery operability. The 150 micro-ohm limit will continue to apply to the battery inter-cell and terminal connections, and in accordance with SR 3.0.1, failure to meet this limit shall be failure to meet the limiting condition for operation. NRC Request 2 On Page 6 of Attachment 4, the licensee stated that the measurements taken at the inter-rack connection points will not include the resistance of the jumper cables that extend between the tiers and racks (Ref. 13). a. Provide the basis for the above statement and provide a copy of Reference 13. Page 1

ATTACHMENT I Response to Request for Additional Information

b. The licensee also stated that the resistance of the jumper cables (Rjumper) must be subtracted from the calculated value to obtain an accurate total allowable resistance. The staff notes that the jumper cables that extend between the tiers and the racks connect the cells together to form the battery and their resistances contribute to the overall resistance of the battery.

Explain how excluding the resistance of the inter-tier and inter-rack jumper cables from the total measured resistance will give an accurate total allowable resistance of the battery when the intent of the SRs is to verify the total battery connection resistance to demonstrate the capability of the DC systems. c. Explain how the field measured battery resistance values will be evaluated for compliance with the proposed TS SRs.

Response

The jumper cable resistance is excluded from the inter-cell measurements because it could mask a degrading inter-cell connector if the jumper cable resistance is large in comparison to that of the inter-cell connector. As requested, Reference 13 (i.e., procedure QCEPM 0100-01, "Station Battery Systems Preventive Maintenance") is provided as Attachment 2. Since the resistance of the jumper cables are not measured per procedure QCEPM 0100-01, that resistance must still be accounted for as discussed below. Calculation QDC-8300-E-1587, "Determination of Battery Intercell Connector Resistance Limits," Revision 002, was submitted to the NRC as Attachment 4 of Reference 1. The total allowable resistance is determined on page 6, step 6, of the calculation. Note that the resistance assumed per the vendor (i.e., Rvendor) and that from the remaining margin in the battery (i.e., RMargin) are first summed together. The resistances Rvendor and RMargin; however, assume that the battery is a continuous string of cells connected together by inter-cell connectors only. There are no provisions in these values for inter-connecting jumper cables. For that reason, the actual resistance from the jumper cables must be subtracted from the "ideal battery" to arrive at the proper value, as shown in step 6. SR 3.8.4.5 requires a verification of battery connection resistance every 24 months. Similarly, SR 3.8.4.2 requires a quarterly verification of connection resistance when visible corrosion is identified. Station procedures that implement these SRs will be modified to accommodate the proposed change. Specifically, the procedures will be updated to include a means of recording and totaling connection resistance for each safety related battery. The total recorded connection resistance will be compared to the proposed TS limits for total connection resistance. NRC Request 3 On Page 6 of Attachment 4, the licensee stated that maintenance is performed on any connection that exceeds 120% of the baseline resistance. IEEE 450-2002 states: "A 20% increase from a baseline value may serve as a criterion for initiation of corrective action prior to the next inspection." Clarify that the 20% increase from baseline will be applied to inter-cell, inter-tier and inter-rack connections and also to the total battery connection resistance. Page 2

ATTACHMENT 1 Response to Request for Additional Information a. The licensee stated that the lower bound of the acceptance criteria will be 120% of the summation of all the baseline resistances for the applicable battery. The staff notes that the licensee only included the upper bound of the acceptance criteria in the TS SRs 3.8.4.2 and 3.8.4.5.

b. Explain the purpose of the lower bound value of the acceptance criteria and how it will be used to evaluate the performance capabilities of the DC systems. Clarify how the lower bound of the acceptance criteria will be controlled.

Response

The 20% increase from baseline is applied to the inter-cell, inter-tier, inter-rack, and total battery connection resistance for the lower bound. As discussed below, the lower bound is not an operability limit, but serves as a guide to assure that actions are taken well in advance of the point where the operability limit is challenged. The purpose of the calculation is to determine a maximum value for the sum of the measured resistances of each battery's connection points that can be reached and still allow the battery to perform its design function. This maximum value is calculated in calculation QDC-8300-E-1587, on page 6, step 6, and is designated as RTotal-Allow. However, since battery loading may change over time which would affect RTotal-Allow, the acceptance criteria were established at a point below RTota,-Allow to allow for future load growth of the DC system. These acceptance criteria, or upper bound, are a judgment based on how much load growth is expected over the life of the plant. To arrive at an optimum value for the acceptance criteria, a lower bound is also necessary to prevent acceptance criteria from being established which could be easily reached under normal plant conditions. In other words, if the acceptance criteria are too low (i.e., overly conservative), then the acceptance criteria could be reached inadvertently due to normal increases in corrosion on the inter-cell connectors. To guard against this, a lower bound was established such that it was high enough above those conditions that would be seen under normal conditions. Since inter-cell connection maintenance for each connection is established at 120% of the baseline resistances, it is unlikely that all the connections would reach that point simultaneously. The establishment of a lower bound with all the connections at 120% of baseline is, therefore, a reasonable value. Since the lower bound is only used as a guide in establishing the SR acceptance criteria, it was not included in the proposed SRs 3.8.4.2 and 3.8.4.5. The relationships between the inter-cell baseline resistances, 120% of baseline resistance, and the acceptance criteria are shown on page 14, Table 4, of calculation QDC-8300-E-1587. The relationship between the acceptance criteria and the absolute maximum allowable resistance, RTotal-Allow, is shown in Table 5 of the calculation. These tables show how a balance is reached when selecting the acceptance criteria in an optimal fashion. The lower bound is controlled by updating Table 4 of the calculation following maintenance of battery inter-cell/terminal connections when new baseline data are established. Page 3

ATTACHMENT 1 Response to Request for Additional Information NRC Request 4 On Page 7 of Attachment 4, the licensee provided in Table 1 the baseline string resistances for Unit 1 and 2 batteries, which are the sum of the subject batteries' baseline resistance values that were obtained at the time of their installation.

a. According to IEEE 450-2002, whenever all battery connections are cleaned and reassembled, a new baseline should be established. Clarify whether all the batteries connections have been cleaned and reassembled since the installation of the batteries and if the baseline resistance values in Table 1 are the current values.
b. Provide a listing of the type of connections that are included in the calculation of the baseline string resistances. Also, provide a summary table including the current baseline resistance value for each type of connections (inter-cell, inter-rack, inter-rack, and terminal) for Units 1 and 2 normal 125 VDC, alternate 125 VDC, and 250 VDC batteries.

Response

QCNPS has made no commitments to the 2002 version of IEEE-450. The station battery preventive maintenance program does not require establishing a new baseline resistance value when a battery is cleaned and re-assembled during the life of the battery. The 120% threshold is used only to trigger preventive maintenance (i.e., to clean affected cells and re-torque as necessary). The battery connections, therefore, have not been cleaned and reassembled since their installation. However, this is not a concern in regards to the selection of the acceptance criteria for total allowable resistance. The baseline values are only used to determine a lower bound, which serves as a guide to assure that actions are taken well in advance of the point where the operability limit is challenged. A listing of the number and type of connections for each battery is contained in Table 2 on page 8 of the calculation. This table is shown below. Using the Unit 1 125 VDC Battery as an example, it has a total of 56 inter-cell connectors and one inter-rack connection which is a jumper cable 47" long. This battery also has two post to lug connections which would be the output power cables connected to the battery's positive and negative terminals. The Unit 1 250 VDC Battery has four inter-rack/inter-tier jumper cable connections with a total length of 227". Number Intercell Jumper Jumper Inter-Rack Post-lug Battery of Cells Conn. Lengths Size Conn. Conn. Ref. U1 125 VDC 58 56 47" 350 MCM 1 2 2, 4, 14 Alternate U1 125 VDC 58 56 47" 350 MCM 1 2 2, 4, 14 Normal U1 250 VDC 120 115 227" 250 MCM 4 2 3,4,14 U2 125 VDC 58 56 40" 350 MCM 1 2 2, 6, 14 Alternate U2 125 VDC 58 52 222" 350 MCM 5 2 2, 6, 14 Normal U2 250 VDC 120 113 385" 250 MCM 6 2 3, 7, 14 Page 4

ATTACHMENT I Response to Request for Additional Information As noted above, baseline resistance values were used to envelope expected field measurements such that the proposed TS acceptance criteria would provide sufficient operating margin. Baseline resistance values were not used in determining the design limit total battery resistance (RTotal-Allowed). The table below shows typical baseline resistance values for each type of connector associated with each battery. It should be noted that the exact values of these typical resistances are not critical in the establishment of the lower bound. Nominal baseline values are adequate to assure that the operability limits are not challenged. Intercell Resistance Inter-Rack Resistance Post-lug Resistance Battery Conn. (Typical) Conn. (Typical) Conn. (Typical) U1 125 VDC 56 31 µ92 1 20 µS2 2 22 µS2 Alternate U1 125 VDC 56 27 µS2 1 20 µS2 2 18 µS2 Normal U1 250 VDC 115 27 µS2 4 22 µS2 2 20 µS2 U2 125 VDC 56 28 µS2 1 22 µS2 2 20 µ92 Alternate U2 125 VDC 52 28 µS2 5 25 µS2 2 21 µS2 Normal U2 250 VDC 113 26 µS2 6 25 µS2 2 24 µS2 NRC Request 5 On Page 7 of Attachment 4, the licensee states: "The 125 VDC alternate batteries for Units 1 and 2 utilize the same cell type and load profiles as the normal 125 VDC batteries. The alternate batteries are also enveloped by the normal batteries in regards to the length of the jumper cables and the number and type of connections. The acceptance criteria for the Unit 1(2) 125 VDC alternate batteries will be the same as the Unit 1(2) normal 125 VDC batteries. This is verified from references 2, 3, 4, 5, 6, and 14." a. Provide excerpts from references 2, 3, 4, 5, and 6 that show the above statement. b. Discuss why the baseline string resistance of Unit 1 125 VDC normal battery, as provided in Table 1, is less than that of Unit 1 125 VDC alternate battery even though the normal battery envelops the alternate battery in regards to the length of the jumper cables and the number and type of connections as stated above. c. Clarify whether the 125 VDC normal and alternate batteries for Units 1 and 2 will have different voltage limits given that they have different number and type of connections.

Response

Excerpts from References 2, 4, 5, and 6 are provided in Attachment 3. Reference 3 was listed in error as it applies to the 250 VDC batteries. EGC plans to remove Reference 3 from the statement in a future revision of the calculation. Page 5

ATTACHMENT 1 Response to Request for Additional Information Since the baseline resistances of both the normal and alternate batteries must be considered together when determining the lower bound, the battery with the highest baseline resistance would be the enveloping battery. In this case, the alternate battery envelops the normal battery. However, since both batteries are considered together, and both batteries have the same lower bound, the selection of the lower bound for these batteries remains the same. EGC plans to revise the calculation to clarify that the alternate battery envelops the normal battery. The minimum required battery terminal voltage for the 125 VDC batteries is required, as stated in Section 8.3.2.2 of the Updated Final Safety Analysis Report (UFSAR), to be at least 105 VDC. That is, the voltage at the battery terminals must not drop below 105 VDC at any time during the duty cycle. The inter-cell, inter-tier, inter-rack, and terminal connection resistance limits will ensure that the 105 VDC battery terminal voltages will be maintained. The normal and alternate batteries will, therefore, have the same voltage limits regardless of the number and type of connections. NRC Request 6 The current wording in TS SR 3.8.4.2 and SR 3.8.4.5 is generically referring to the acceptance criteria for the battery inter-cell and terminal connections only. Clarify that the same acceptance criteria is also applicable to the battery inter-tier and inter-rack connections. On Page 5 of Attachment 4, the licensee stated that the available margin in the calculated resistance values is based on the available voltage margin (Vmin - VRequired), and the battery sizing software DC-ELMS was used to evaluate the allowable margins. Explain how the inter-cell, inter-tier and inter-rack resistance values were incorporated into the DC-ELMS evaluations. Also, clarify the temperature correction factor that was used for these resistance values.

Response

The terminal connections referenced above refers to the connections between a cable lug and the battery post, whether it is for the inter-tier and inter-rack jumper cables, or the cable terminations that connect the battery terminals to the external DC system. The acceptance criteria are applicable to all these connections. The battery sizing software, also known as ELMS-DC, is normally used to perform a battery sizing calculation per the methodology contained in IEEE 485-1983. The ELMS-DC program determines how much remaining capacity is left in the battery based on a variety of factors including cell size, temperature, and the minimum acceptable battery voltage. By raising the minimum battery voltage, in the ELMS-DC program, until the remaining capacity approaches 0%, a voltage margin can be established. This voltage margin is designated as VMin in step 2 of the methodology. The remaining steps in the methodology are used to determine the allowable resistance values via numerical analysis. Therefore, the resistance values discussed above are not incorporated directly in the ELMS-DC program. The ELMS-DC program is governed by two battery sizing calculations for the 125 VDC and 250 VDC batteries. These calculations contain an administrative tie with the subject calculation Page 6

ATTACHMENT 1 Response to Request for Additional Information QDC-8300-E-1 587 such that any load change on the batteries will be evaluated for impact on the total allowable battery string resistances. The temperature correction factor was based on the location where the batteries are located which is the Turbine Building. Per the UFSAR, the Turbine Building temperatures could reach 120°F, which corresponds to 50°C. The inter-cell connectors, terminal connectors, and jumper cables were adjusted for this higher temperature using Okonite's methodology and tables contained in Attachment E of the calculation. Note also that VMin is temperature corrected via the ELMS-DC program to 65°F, which is the minimum allowable battery electrolyte temperature (i.e., voltage margin is reduced as the temperature drops). NRC Request 7 On page 5 of the Attachment 4, the licensee stated that the available margin in the calculated resistance values is based on the available voltage margin (Vmin - VRequired), and the battery sizing software DC-ELMS was used to evaluate the allowable margins. Explain how the inter-cell, inter-tier and inter-rack resistance values were incorporated into the DC-ELMS evaluations. Also, clarify the temperature correction factor that was used for these resistance values.

Response

This is discussed above in response to NRC Request 6. Reference 1. Letter from P. R. Simpson (Exelon Generation Company, LLC) to U.S. NRC, "Request for License Amendment to Revise Battery Surveillance Requirements," dated June 10, 2013 Page 7

ATTACHMENT 2 Procedure QCEPM 0100-01, "Station Battery Systems Preventive Maintenance," Revision 41

QCEPM 0100-01 Revision 41 Page 1 of 19 Level 2 - Reference Use STATION BATTERY SYSTEMS PREVENTIVE MAINTENANCE 1. PURPOSE 1.1. The purpose of this Procedure is to outline steps to conduct preventative maintenance on the following batteries: 1.1.1. Station and SBO 125 VDC Systems. 1.1.2. 250 VDC Safety Related and Non-Essential Battery Systems. 1.1.3. 24/48VDC. 1.1.4. Computer UPS. 1.1.5. Security UPS. 1.1.6. Lift Station Batteries. 1.1.7. Relay House 125 VDC. 1.2. This Procedure provides instructions for detailed visual battery inspection, battery connection resistance and torque maintenance, battery charger adjustments, and battery rack integrity check. This Procedure is not intended to eliminate Operating Department battery surveillance's, but to complement them and to insure battery reliability. Operations may request cleaning and resistance measurements be performed on specific battery cells rather than an entire battery string in accordance with QCOS 6900-02 (6.5.3). 2. MATERIAL AND SPECIAL EQUIPMENT 2.1. Cleaning rags. 2.2. Baking soda-water solution. 2.3. AVO Micro-Ohmmeter. 2.4. Voltmeter. 2.5. Torque Wrench, 300 in. lbs. 2.6. Socket Wrench, regular and deep well, 1/2 and 3/4 inch. 2.7. Combination Wrench, 1/2 and 3/4 inch. 2.8. NO-OX-ID "A" grease (containing no solvents).

QCEPM 0100-01 Revision 41 Page 2 of 19 2.9. Paint for Battery Racks. 2.10. Rubber apron, gloves, goggles and face shield. 2.11. Hot Air Gun 3. PRECAUTIONS, LIMITATIONS, AND PREREQUISITES 3.1. Precautions 3.1.1. When cleaning batteries, VERIFY that proper protective clothing (rubber apron, gloves, goggles and face shield) is used to prevent burns and clothing damage. 3.1.2. Keep flames and sparks of all kinds away from vicinity of storage batteries as hydrogen gas in cells is explosive. 3.1.3. Never place metal tools on top of cells. 3.1.4. VERIFY Voltmeter and Micro-Ohmmeter used have certification stickers and are within calibration due date. 3.1.5. If battery connectors are corroded, then do not re-torque. 3.1.6. When checking intercell connectors, use ONLY non-sparking or insulated tools and remove metallic jewelry. This is done to avoid sparks, which could result in an explosion due to presence of hydrogen gas. Personnel shall neutralize static build-up from their person by touching a grounded surface before working on batteries. 3.1.7. USE only baking soda and water to clean battery cells. Do not use any cleaners or solvents. 3.1.8. When installing or removing mechanical lifting devices or hoist to overhead trolley (beam), at no time shall this be done over station batteries. (6.1.9) 3.2. Limitations 3.2.1. Scheduled intervals for this procedure shall be tracked as per the Passport system. 3.2.2. Placing an initial after any step verifies that step is completed satisfactory. 3.2.3. Steps which are not required shall be marked N/A, in accordance with HU-AA-104-101 (Procedure Use and Adherence). (6.1.5) 3.2.4. Steps of this procedure shall be performed in sequence unless directed otherwise by a NOTE preceding a procedure step or at the direction of the EM Supervisor. 3.3. If a Procedure Step cannot be initialed satisfactory due to any discrepancy noted during the performance of this Procedure, then this must be documented and reported to Supervisor.

QCEPM 0100-01 Revision 41 Page 3 of 19 3.4. Prerequisites 3.4.1. Applicable plant operating MODES this Procedure may be performed in is ALL MODES. 3.4.2. CONTACT Operations prior to beginning work. 3.4.3. INSULATE tools to prevent them from shorting or grounding station batteries. 3.4.4. Battery charger is not to be in equalize mode. 3.5. Acceptance Criteria 3.5.1. Equipment inspected by this procedure must meet the Acceptance Criteria specified in this Procedure, Attachments, and Data Sheets. 3.5.2. If Acceptance Criteria is not met, the Supervisor shall be notified and Tech Specs 3.8.4 and 3.8.5 reviewed. If Technical Specifications are not met, then Electrical Maintenance Supervisor shall NOTIFY the Unit Supervisor. 3.5.3. If performing this surveillance for the U1(2) 125 VDC, U-1(2) 125 VDC Alternate, or U-1 (2) 250 VDC battery to meet SR 3.8.4.5, then the resistance of each cell-to-cell and terminal connection is < 7.0E-5 (< 70 X 10-6) ohms. (6.1.1, 6.7.1) 3.5.4. FORWARD copy to System Engineer if any discrepancy found during inspection.

QCEPM 0100-01 Revision 41 Page 4 of 19 4. MAIN BODY NOTE: Steps 4.1 through 4.4 may be performed concurrently or in any order 4.1. Battery Cleaning CAUTION Do not clean plastic cell jars or covers with solvents, detergents, oils, or spray-type cleaners, as these materials may cause crazing and cracking of plastic materials. 4.1.1. INSPECT exterior tops and fronts of batteries. 1. CLEAN cell jars and covers with a water-dampened cloth to remove accumulated dust. CAUTION Ensure NO baking soda-water solution is allowed to enter cell. 2. CLEAN cell parts, which are wet with electrolyte with a baking soda-water solution of 1 lb. of soda per gallon of water. A. Continue to NEUTRALIZE electrolyte until fizzing action ceases, then WIPE area with a water-dampened cloth to remove soda solution. B. WIPE dry and BUFF with a clean cloth. C. CLEAN the area beneath the battery. D. INITIAL battery jar cleaning on Attachment 1. 4.2. Battery Rack Integrity Check 4.2.1. INSPECT battery rack for the following: 1. Rack ground connection is satisfactory. 2. Loose nuts and bolts. 3. Damaged or missing parts. 4. INSPECT the racks for paint and corrosion. A. If 3D corrosion is encountered, then REMOVE it by brushing and INSPECT the exposed surface. 1. If any indentations or pitting are observed, then REQUEST an Engineering evaluation.

QCEPM 0100-01 Revision 41 Page 5 of 19 B. If paint is on hand, then PERFORM minor touch-up painting 1. If paint is not on hand, then INITIATE an IR to perform. C. If major painting is required, then INITIATE an IR to perform. 5. For Unit 1 and Unit 2 125 VDC, 125 VDC Alternate and 250 VDC batteries: A. Battery cells are not in contact with the rack steel (i.e., cells are restrained front and rear [except Unit 2 125 Normal Battery] by Ethafoam material. Cells are restrained sideways by Ethafoam material; and post caps are greater than 1/8" from cell or have Ethafoam material between cell and post cap). B. Ethafoam is full height or is snugly held between rack and battery. Foam may be checked as follows: USING a finger, APPLY a small downward force on the top edge of the foam at one end. Foam should not slip. REPEAT at other end of foam. 6. INITIATE an IR for any repair. A. RECORD number on Attachment 1, Battery Checklist. 7. CLEAN accumulated dust with water dampened cloth. 8. INITIAL battery rack condition checked on Attachment 1. 4.3. Battery Cell Visual Inspection 4.3.1. INSPECT cells for the following (where accessible): 1. Excessive flaking of plates. (If sediment reaches the plates, then INITIATE an I R to replace the cell.) 2. Plates that have fallen to bottom of jar. 3. Indications of lead-sulfate crystals. 4. Cracks in internal bus bars. 5. Excessive plate grid growth. 6. Cracks in jar of each cell. 7. INSPECT spark arrestors/vents for cracks or deterioration to dust cap, vent body and o-ring.

QCEPM 0100-01 Revision 41 Page 6 of 19 NOTE: Battery corrosion is the oxidation of the lead cladding on battery post and/or intercell connections in the immediate vicinity of the battery post. More specifically, an intercell connection consists of the battery terminal post, Intercell connector end that is an integral part of the electrical connection and any hardware used in the construction of the electrical connection. The figure below is illustrative of one (1) intercell connection. Corrosion begins as a dark (positive posts) or creamy discoloration (negative posts) of the lead cladding and ends with the development of nodular, powdery, thick, cauliflower-like three-dimensional growth. The development of three-dimensional corrosion ultimately results in significant degradation of battery intercell resistance readings. Fully developed three-dimensional corrosion is usually green in color (copper substrate) but may be white or dark depending upon the post at the point of origin. Corrosion (clad discoloration) on the battery posts/point of electrical connections that has not yet become three-dimensional can be difficult or impossible to remove. Repeated and/or vigorous attempts to remove this discoloration can result in the rapid erosion of the lead cladding material and is to be avoided. This type of corrosion usually begins at the positive post/connectors and is the result of electrolyte or electrolyte fumes creeping on to the battery posts past the battery post seals. The figure below can be used for reference in identifying battery corrosion. Corrosion that presents any degree of three-dimensionality has moved past simple discoloration. This type of corrosion can usually be removed without risking further damage to the protective lead or lead cladding and must be cleaned and chemically neutralized. As three-dimensional corrosion can grow quickly, the affected battery cell maintenance should begin as soon as is reasonable.

QCEPM 0100-01 Revision 41 Page 7 of 19 8. INSPECT the battery connections, terminals and REMOVE any three-dimensional (3D) corrosion as follows. NOTE: To avoid confusion, "3D corrosion" will be referred to simply as "corrosion" from this point forward: A. If directed by Operations, then PERFORM an "As Found" intercell resistance reading per step 4.4 B. CLEAN using baking soda and water solution (1 pound of baking soda per 1 gallon of water), a non-metallic brush and Scotchbrite pad. 1. If intercell connectors appear defective or copper is showing through the lead plating, then INITIATE an IR to repair. C. PERFORM an "As Left" intercell resistance reading per step 4.4 for any cells that had corrosion removed/cleaned. D. RECORD cell numbers, locations of corrosion and resistance readings in comments section of Attachment 1, using additional sheets if necessary. 1. PROVIDE copy of Attachment 1 to System Engineer per step 5.2.2. E. PLACE NO-OX-ID grease in a suitable container and HEAT NO-OX-ID grease using hot air gun or other suitable heat source as approved by EMD Supervision. F. APPLY a thin coating of NO-OX-ID to all contact surfaces and to any exposed surface using a brush or other suitable tool approved by EMD Supervision. G. WIPE any excess grease from top of cell. H. If water level is at or below Low line or > 1/4" above maximum level line, then NOTIFY Operations and DOCUMENT in "Comments" section of Attachment 1. 4.3.2. INITIAL visual inspection complete and DOCUMENT any discrepancies or abnormal conditions in Comment section of Attachment 1. 1. INITIATE an IR as required. 4.3.3. FORWARD a copy of attachment 1 to System Engineer for trending.

QCEPM 0100-01 Revision 41 Page 8 of 19 4.4. Battery Cell Connection Resistance Measurements 4.4.1. PERFORM the following Steps to obtain battery cell connection resistance. NOTE: Resistance measurements taken on batteries with no baseline data will be used for problem identification only. Engineering will evaluate. NOTE: For Safety Related Batteries, DO NOT take readings across interconnecting cables. For Post-to-Lug, 70 Micro-Ohms acceptance Criteria applies. CAUTION When using Micro-Ohmmeter, measurements must be across intercell connections only and not across battery load. Improper use of meter may result in its damage and or personal injury. Jumper cables should be hand traced to verify micro-ohmmeter is not across battery load. 1 Using micro-ohmmeter, PLACE probe on top of cell post or cable lug and MEASURE intercell connection resistance. Example: (for posts) FIGURE 1 A-C or B-D, FIGURE 2 1-2 or 3-4 (on same connecting link). Figure 3 and 4 show how to take resistance from post to lugs FIGURE 1 FOUR POST, FOUR CONNECTOR 2 SINGLE CONNECTOR

QCEPM 0100-01 Revision 41 Page 9 of 19 Front View Resistance Measurement with Terminal Plate Figure 3 Back View Resistance Measurement with Terminal Plate Figure 4 (2) V R-1r RESSTANCE MEASU REM)EN-Figure 5 2. RECORD resistance readings on appropriate Data Sheet. (Data sheets are referenced in Section 6.6). NOTE: As Left readings on applicable Data Sheets need only be completed if connections were re-torqued, due to unacceptable resistance readings. A. If performing resistance readings on SAFETY-RELATED BATTERIES, then acceptance criterion does not exceed 120% of baseline resistance reading. 1. If Acceptable, then INDICATE yes on Data Sheet and GO TO Step 4.4.1.2.A.4.

QCEPM 0100-01 Revision 41 Page 10 of 19 2. If resistance readings are > 70 micro-ohms, then NOTIFY Unit Supervisor to evaluate battery for operability per TS 3.8.4 (Safety Related Batteries only). A. GENERATE IR to clean affected cells and re-torque per Step 4.5 referencing Attachment 1 for obtaining appropriate torque values. 3. If resistance readings are > 120% of baseline resistance readings then CONTACT System Engineer to evaluate battery. A. GENERATE IR to clean affected cells and re-torque per Step 4.5 referencing Attachment 1 for obtaining appropriate torque values. 4. INITIAL/DATE resistance test on appropriate Data Sheet and GO TO step 4.6. B. If performing resistance readings on NON-SAFETY RELATED BATTERIES, then Acceptance criteria not to exceed 120% of baseline resistance reading. 1. If Acceptable, then INDICATE yes on Data Sheet and GO TO Step 4.4.1.2.8.3. 2. If resistance readings do not meet Acceptance Criteria then GENERATE IR to clean affected cells and re-torque per Step 4.5 referencing Attachment 1 for obtaining appropriate torque values. 3. INITIAL/DATE resistance test on appropriate Data Sheet and GO TO Step 4.6. 4.5. Re-torque Battery Cell Connections NOTE: If it is determined that re-torquing is necessary, then this step is to be performed. NOTE: Both bolt head and nut of stainless steel hardware must be torqued to their prescribed torque values. Torquing only one side of either combination will not provide desired torque. NOTE: If corrosion is found between contact surfaces, then an Issue Report should be written to dissemble connections, clean reassemble connections and torque at the next available opportunity. 4.5.1. Using non-sparking or insulated tools, PERFORM the following to re-torque Battery Cell Connections: 1. Using appropriate torque values from Attachment 1, RE-TORQUE the bolts and nuts at connections.

QCEPM 0100-01 Revision 41 Page 11 of 19 2. INITIAL for re-torquing connections on Attachment 1. 3. PLACE NO-OX-ID grease in a suitable container and HEAT NO-OX-ID grease using hot air gun or other suitable heat source as approved by EMD Supervision. 4. APPLY a thin coating of NO-OX-ID to all contact surfaces and to any exposed surface using a brush or other suitable tool approved by EMD Supervision. 5. WIPE any excess grease from top of cell. 4.6. Float Voltage Adiustment NOTE: Steps 4.6 through 4.8 must be performed for batteries that have a solid-state chargers and the ability to provide float and equalize charge. Charger supplying the load must be identified, since the backup charger may be in use. 4.6.1. If adjusting the Float Voltage on Relay House System #1, then PERFORM the following to adjust Float Voltage: 1. IDENTIFY the charger that is supplying load. 2. Using voltmeter, MEASURE battery float voltage at the battery and RECORD As Found float voltage on Attachment 1. 3. If float voltage is not within range specified on Attachment 1, then ADJUST charger float voltage to obtain proper value. A. REQUEST Operations TURN OFF Battery Charger 1 B. B. ADJUST the 1A Battery Charger voltage control potentiometer so the desired float voltage is maintained at a trickle charge rate. C. REQUEST Operations TURN ON Battery Charger 1 B. D. ADJUST the 1 B Battery Charger voltage control potentiometer until the load is shared equally between the 1A & 1B Battery Chargers as indicated by the charging currents being approximately equal. NOTE: After a short period of time, one unit may assume more of the load. E. After 15 minutes, VERIFY load is still shared equally between the 1A & 1 B Battery Chargers. F. IF the load is not equally shared, then ADJUST the Float Voltage of the charger carrying the least load until the load is equally shared. 4. RECORD the AS LEFT float voltage on Attachment 1.

QCEPM 0100-01 Revision 41 Page 12 of 19 4.6.2. PERFORM the following to adjust Float Voltage: 1. IDENTIFY the charger that is supplying load. 2. USING voltmeter, MEASURE battery float voltage at the battery and RECORD As Found float voltage on Attachment 1. 3. If the AS FOUND battery terminal voltage for safety related battery systems on float charge do not meet the following TS requirements, then NOTIFY the Unit Supervisor. > 260.4 VDC for each 250 VDC subsystem. > 125.9 VDC for each 125 VDC subsystem. 4. If float voltage is not within range specified on Attachment 1, then ADJUST charger float voltage to obtain proper value. 5. RECORD the AS LEFT float voltage on Attachment 1. 4.7. Battery Charger Panel Voltmeter Adiustment 4.7.1. PERFORM the following to adjust Battery Charger Panel: 1. VERIFY battery charger panel voltmeter reads within 2% of the digital voltmeter. 2. If necessary, then ADJUST voltmeter zero adjustment screw to obtain proper reading. 3. INITIAL for panel voltmeter satisfactory on Attachment 1. NOTE: During performance of step 4.8, Battery Equalize Charge Adjustment, the battery charger will be placed in Equalize for a short duration to allow adjustment of the Equalize voltage. There is no requirement to keep the charger in Equalize charge after the Equalize voltage is properly adjusted. 4.8. Battery Equalize Charge Adjustment 4.8.1. PERFORM Step 4.8.2 for Relay House System #1 only. For all others, GO to step 4.8.3 4.8.2. If adjusting the Equalize Voltage on Relay House System #1, then PERFORM the following to adjust Equalize Voltage: 1. REQUEST Operations place the 1A and 1 B Battery Chargers in Equalize A. Depress the Equalize start / stop pushbutton to place charger in Equalize. 0 PS INT Date

QCEPM 0100-01 Revision 41 Page 13 of 19 2. If equalize voltage is not within range specified on Attachment 1, then ADJUST charger equalize voltage to obtain proper value. A. ADJUST the 1A Battery Charger voltage control potentiometer so the equalize voltage is within the range on Attachment 1. B. ADJUST the 1 B Battery Charger voltage control potentiometer until the load is shared equally between the 1A & 1B Battery Chargers as indicated by the charging currents being approximately equal. C. IF the load is not equally shared, then ADJUST the Equalize Voltage of the charger carrying the least load until the load is equally shared, keeping the Voltage within the range on. D. If voltage can not be adjusted to within the range of Attachment 1, then NOTIFY the FLS and initiate an IR. 3. RECORD Equalize voltage reading level on Attachment 1. NOTE: If it is desired to leave the Battery Chargers in Equalize until the Equalize timer times out, Step 4.8.2.4 may be N/A'd 4. REQUEST Operations place the 1A and 1 B Battery Chargers in Float A. DEPRESS the Equalize start / stop pushbutton to place charger in Float. OPS INT Date CAUTION NOTIFY Control Room of possible alarms. 4.8.3. PERFORM the following to adjust Battery Equalize Charge: 1. ADJUST Equalizing potentiometer to minimum setting. 2. REQUEST Operations place the float / equalize switch in the equalize position. For chargers without float / equalize switches, SET the timer to 1 hour. OPS INT Date 3. USING voltmeter, MEASURE voltage at batteries and ADJUST charger equalize potentiometer to obtain proper value from Attachment 1. 4. RECORD Equalize voltage reading level on Attachment 1.. 5. REQUEST Operations to place the float / equalize switch in the float position. For chargers without float / equalize switches, SET the timer to zero. OPS INT Date

QCEPM 0100-01 Revision 41 Page 14 of 19 5. RETURN TO NORMAL

5.1. COMMENTS

5.2. The EM Supervisor is to review this Procedure, applicable Attachment(s), and applicable Data Sheet(s) for discrepancies. (Discrepancies will be denoted by any procedure step not being completed satisfactory and ENSURE an IR is written). If discrepancies are noted, then TS Sections 3.8.4 and 3.8.5 are to be reviewed. 5.2.1. If any discrepancy found during inspection, then FORWARD copy to System Engineer. 5.2.2. FORWARD a copy of all readings to the System Engineer for trending purposes. 6. REFERENCES 6.1. Technical Specifications 6.1.1. Section 3.8.4, DC Sources - Operating. 6.1.2. Section 3.8.5, DC Sources - Shutdown. 6.1.3. Publication US-FL-IOM-001 in Vendor Manual 6.1.4. Commitments 6.1.5. NTS 2541009800903.02, Review EMD Procedures and revise to define when you may disposition a step as not applicable. This will close NTS #25420198CAQD0134901. 6.1.6. IEEE Std. 450, Recommended Practice For Maintenance Testing of Large Lead Storage Batteries. 6.1.7. Production Instruction 1-3-N-8, Surveillance and Maintenance of Stationary Storage Batteries at CECo Nuclear Generating Stations. 6.1.8. Specification EM-12926, Storage Battery. 6.1.9. NTS # 254-200-89-09902; DVR 89-099, Cracked Battery Cell. 6.1.10. NRC IE Notice 84-53, Various Battery Problems.

QCEPM 0100-01 Revision 41 Page 15 of 19 6.1.11. NRC Reg Guide 1.129, Maintenance, Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants. 6.1.12. Chron Letter #178458 (EM Letter #546) Recommended Float and Equalize Voltage for the 250 Volt Batteries with 120 Cells. 6.1.13. Switchyard Relay House Battery Maintenance Recommendations: Letter to Mark Sievert and Jerry Biederman from Paul Aitken, November 16, 1994. EM File #574. 6.1.14. NTS #265-201-96-239301, Incorporate seismic requirement checks into maintenance procedures. 6.1.15. NTS #254-548-97-01203, Cleaning area beneath the station batteries. 6.2. Drawings - NONE 6.3. P& IDs - NONE 6.4. Manuals 6.4.1. Vendor Manual, VETI #00004, GNB Station Battery Installation and Operating Instructions. 6.4.2. Vendor Manual, VETI #C0100, 125 VDC Power Conversion Products Charger Manual. 6.4.3. Vendor Manual, VETI #00081, 250 VDC Power Conversion Products Charger Manual. 6.4.4. Vendor Manual, VETI #0223, 250 Volt DC Systems. 6.4.5. Vendor Manual, VETI #C0192, Exide Batteries. 6.4.6. Vendor Manual, AT&T Lineage 2000 Round Cell Battery. Product Manual 157-629-700. 6.4.7. Vendor Manual, C&D 12-800, Standby Battery Installation and Operating Instructions. 6.5. Procedures 6.5.1. QCAP 1800-08, Station Predefine Program. 6.5.2. QCOS 6900-01, Station Battery Weekly Surveillance. 6.5.3. QCOS 6900-02, Station Battery Quarterly Surveillance. 6.5.4. QCOS 6900-15, Station Battery Monthly Surveillance. 6.5.5. QCEM 0700-03, Battery Rooms Overhead Cranes.

QCEPM 0100-01 Revision 41 Page 16 of 19 6.6. Data Sheets 6.6.1. QCEPM 0100-01-F-001, Unit 1 25OVDC Battery Inspection Resistance Checklist 6.6.2. QCEPM 0100-01-F-002, Unit 1 125VDC Battery Inspection Resistance Checklist 6.6.3. QCEPM 0100-01-F-003, Unit 1 Alternate 125VDC Battery Inspection Resistance Checklist 6.6.4. QCEPM 0100-01-F-004, Unit 1 24/48VDC Battery Inspection Resistance Checklist 6.6.5. QCEPM 0100-01-F-005, Unit 2 25OVDC Battery Inspection Resistance Checklist 6.6.6. QCEPM 0100-01-F-006, Unit 2 125VDC Battery Inspection Resistance Checklist 6.6.7. QCEPM 0100-01-F-007, Unit 2 Alternate 125VDC Battery Inspection Resistance Checklist 6.6.8. QCEPM 0100-01-F-008, Unit 2 24/48VDC Battery Inspection Resistance Checklist 6.6.9. QCEPM 0100-01-F-009, Computer UPS Battery Inspection Resistance Checklist 6.6.10. QCEPM 0100-01-F-010, Security UPS Battery Inspection Resistance Checklist 6.6.11. QCEPM 0100-01-F-011, Lift Station Battery Inspection Resistance Checklist 6.6.12. QCEPM 0100-01-F-012, Unit 1 250VDC Non Essential Battery Inspection Resistance Checklist 6.6.13. QCEPM 0100-01-F-013, Unit 2 250VDC Non Essential Battery Inspection Resistance Checklist 6.6.14. QCEPM 0100-01-F-014, System 1 Relay House Battery Inspection Resistance Checklist 6.6.15. QCEPM 0100-01-F-015, System 2 Relay House Battery Inspection Resistance Checklist 6.6.16. QCEPM 0100-01-F-016, Unit 1 SBO Diesel 125V Battery Inspection Resistance Checklist 6.6.17. QCEPM 0100-01-F-017, Unit 2 SBO Diesel 125V Battery Inspection Resistance Checklist 6.7. Other 6.7.1. EC 378085, Inter-cell resistance evaluation for safety related batteries 125/250 VDC. 6.7.2. ECR 403822, Torque Values for U-2 & Spare SBO Batteries. 7. ATTACHMENTS 7.1. : Battery Checklist.

QCEPM 0100-01 Revision 41 Page 17 of 19 ATTACHMENT 1 BATTERY CHECKLIST Page 1 of 3 STEP 2 4 1 1 D 4 2 1 8 4.5.1.2 4.3.2 4.7.1.3 4.6.1.2/ 4.6.2.2 4.8.2.3/4.8.3.4 4.6.1.4/4.6.2.5 BATTERY Battery Battery Rack Intercell Bolt Re-Torque Cell Visual Charger Panel Correct Float Charger Float Correct Equalize Charger Equalize I.R. # if any Cleaning Condition Torque Values Inspection Batteries Voltmeter in Good Voltage Range Voltage Voltage Range Voltage Checked in/lbs appear in Good Condition Condition Initial Re-As Found As Left Torque Torque U-1 250vdc

  • 145-155 145-155 262.8-265.2 268.8-271.2 U-1 125vdc*

145-155 145-155 128.9-129.9 134.6-135.6 U-1 125vdc* 145-155 145-155 128.9-129.9 134.6-135.6 Alternate U-1 1A1 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-1 1A2 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-1 1131 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-1 1132 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-2 250vdc* 145-155 145-155 262.8-265.2 268.8-271.2 U-2125vdc* 145-155 145-155 128.9-129.9 134.6-135.6 U-2125vdc* 145-155 145-155 128.9-129.9 134.6-135.6 Alternate U-2 2A1 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-2 2A2 95-105 95-105 26.64-26.88 27.60-27.96 24/48vdc U-2 2B1 95-105 95-105 26.64 26.88 27.60 27.96 24/48vdc U-2 2B2 95-105 95-105 26.64 26.88 27.60 27.96 24/48vdc

  • Safety Related

QCEPM 0100-01 Revision 41 Page 18 of 19 ATTACHMENT I BATTERY CHECKLIST Page 2 of 3 STEP 4 1 1 2 0 2 1 8 4 4.5.1.2 4.3.2 4.7.1.3 4.6.1.2/ 4.6.2.2 4.8.2.3/4.8.3.4 4.6.1.414.6.2.5 BATTERY Battery Battery Rack Intercell Bolt Re-Torque Cell Visual Charger Panel Correct Float Charger Float Voltage Correct Equalize Charger Equalize I.R. # if any Cleaning Condition Torque Values Inspection Voltmeter in Good Voltage Voltage Range Voltage Checked in/lbs Batteries appear in Condition Range Initial Re-Good Condition As Found As e Tor ue Torque Computer UPS 60-65 60-65 257.5-259.8 266.8-270.3 Security UPS 95-105 95-105 130.2-131.4 132.0-135 Lift Station 110-115 1110-115 129.0-130.2 138.0-139.8 U-1 250V Non-145-155 145-155 260.4-262.8 268.8-271.2 Essential U-2 250V Non-145-155 145-155 260.4-262.8 268.8-271.2 Essential Relay House 70-75 60-65 128.8-130.5 133.4-135.1 System I Relay House 70-75 60-65 128.8-130.5 133.4-135.1 System 11

      • 1-8330 U-1 70-75 60-65 128.8-130.5 133.4-135.1 SBO Diesel Batte ry
    • 1-8330-SPR 120-125 110-115 4.36-4.50 4.60-4.72 U-1 SBO Spare Cell
      • 2-8330 U-2 70-75 60-65 128.8-130.5 133.4-135.1 SBO Diesel Battery
    • 2-8330-SPR 120-125 110-115 4.36-4.50 4.60-4.72 U-2 SBO Spare Cell Both Unit 1 and 2 spare SBO cells are charged from the Spare Cell Battery Charger 1 /2-8330-Spr.
      • Both the Unit 1 and 2 SBO Main Batteries may be charged from the Swing Maintenance Battery Charger 1/2-8330 (6A/7A)(only one Unit at a time)

QCEPM 0100-01 Revision 41 Page 19 of 19 ATTACHMENT 1 BATTERY CHECKLIST Page 3 of 3 Comments:

ATTACHMENT 3 Supporting References Contents

1. Excerpts from Calculation 7318-32-19-1, Revision 43, "Calculation for Inputting 125 Vdc Load Profiles into ELMS-DC for Units 1 and 2" 2.

Drawing 4E-1067F, Revision I, "Connection Layout 125V DC & 250V DC Battery Cells"

3. Drawing 4E-1067J, Revision A, "Cell Connection Layout 125V DC Alt Battery and 48/24V DC Battery" 4.

Drawing 4E-2067E, Revision E, "125V DC Battery Cell Connection Layout"

CC-AA-309-1001 Revision 8 ATTACHMENT 1 Design Analysis Cover Sheet Paste 1 Design Analysis Last Page No. - S16 Analysis No.: ' 7318-32 1 Revision: 2 043 Major Minor q

Title:

Calculation for Inputting 125 Vdc Load Profiles into ELMS-DC for Units 1 and 2 EC/ECR No.: 4 EC 381674, EC 381677 Revision: 002, 003 Station(s): r Quad Cities Component(s): " Unit No.: - 01 and 02 1-8300 (B04) Discipline:' ELDC 2-8300 (B04) Descrip. Code/Keyword: '° E15 Safety/QA Class: " SA System Code: ' DC Structure: 12 N/A CONTROLLED DOCUM ENT REFERENCES Document No.: From/To Document No.: From/To 9149-20-19-1 To QDC-8300-E-1587 To Is this Design Analysis Safeguards Information? '- Yes o No o If yes, see SY-AA-101-106 Does this Design Analysis contain Unverified Assumptions?" Yes[] No [D If yes, ATI/AR#: This Design Analysis SUPERCEDES: e N/A in Its entirety. Description of Revision (list changed pages when all pages of original analysis were not changed): " This revision incorporated changes made by ECs 381674 and 381677 for the installations of the Unit 1 and 2 Main Generator Auto Voltage Regulators (AVR). Pages affected are 1, 1.2, 2.29, 8.15, 15.0, 15.7, 15.8, 15.9, 20, 26, 48.21, and Al through A69. Pages added are 40.11, S13, S14, S15, and S16. Preparer: 20 i^AV 1 i7 w'o ) F /-61(/A"l 4/i 3 Print Name Sion Name D,tge Method of Review: 21 Detailed Review Alternate Calculations (attached) 0 Testing q Reviewer: 22 ') Vn) 711ninC--tZ Print N. Sign Name Dale Review Notes: 27 Independent review Peer review q (For External Analyses Only) External Approver: " .1 14 Print Name Supt Name Date Exelon Reviewer: " 1 I Print Name

Nama, fate

.An Independent 3rd Party Review Reqd? Yes q No III Exelon Approver: 22 ,^ S.5 1n^ _^^ ( ^,^ 1. 3 Print Name i'larrie

SARGENT&LUNDY Safety-Related Non-Safety-Related Prepared by Cates. For Date ENGINEEPaU Client Project Reviewed by Date I Proj. No. "'j ' 3 b ' 3 - 7 Equip. No. Approved by Date iC^.Ot^Al ry. ^CO^t d) L4 , 0144 Loth L4 tt b t Ca.P.ta.1 ^ r ^,F,^,,,^,/, tk i zS v pC (,^ o apt

4. k^.o. ^,^ A 1 +rt ^l`^,

^wa-a^ d ^.rt. ^,n c e r U Irzt ^ Q Cal. CuAJw\\ 1 ark j ^ of S& O-LLt ^^aa 0j-2. ZS V PAA Ca..L& t c tth a._\\ vrll of o nrolto ogre au 1.8 i V p tl a %.e - 3 j - ^S 7 ^.t cv .f^. -/ r.^ zo-zs e( I--- ^' ,:L-i(iC:hcl G- %,ct^^ i.Z4 Lug /tom G 1iLY"1^rt.L t l ,.qs+^a ; r f %^^G^2 itr:,- w ^t ra -- sv-cvs^^i^r,+^ ; L //

  • I'1^L0^1tLavL

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90( 3 SEDETAIL /' E IA THIS DRAWING 6 I 7 CABLE 67212 8 5 3 4 TOP STEP Ir lr II ll^t^lll II !l n ll ll II 1 V ^I_IL1( 111 L^^II^^I^ A E DETAIL I DING 4E-067J CAB E 6721 IIrr-ot11II I I I I I I I I I I II BOTTOM STEP CELL (TOP.) 50 CELL-E STEP BATTERY RACK INTERCELL CONN. COP, L.P, 2 PER COMM. NEEOET.(THISDV`G.I Ip5V DG BATTERY #1 - CELL CONNECTION DIAGRAM ^-3"ALUM.C NOTE3 (TYPICAL TEKIA. L 4 COPPER, LEAD PLATED BOTTO FI 0 STEP P^ E PEER PE%SIIR TY TYPE L r^II II^IIc II IIC^T-=II II 11 TERM LM..PPER, LEAD PLATED B COMPRION TYPE L TERM LUG COOPER LEAD PLATED COMPRESSION TYPE OPEN POLARITY IWUITTO AY 2-1/C-500 KCMIL BATTERY LEAD POSITIVE CAW 67223 & 67224 B C 11 mm^ I^IIf`^fIiIi LEW INTERCELL CONN, COPIEM1,LGAD PL TED IY4%Y4 2 PER CORN TOP STEP DETAIL L THIS ORArAAA 4 PER POLAM1ITY CIE# T.R. 4 CABLE CONN.PLATE COPPER, LEAD PLATED i PER CONNECTION '-JEE DETAILL 'Ohl PRAMMA "^ `BOTTOM STEP TERRA CABLE CONN.RATE COPPER,LEAD PLATED I PER POLARITY 2- 00500KCMIL BATTERY LEAD NEEATIVE - EA*6TEUS 449226 D L 8-2 HOLL LUGS BURNDY TYPE CAT NO YA34-2NDT5 OR YA34-2NDTS-LD OR 3 MFR SUPPLIED DETAIL 1A V ELLCTYp>)' TYPICAL LUG CGPPER CADM{UM PLATED COMPRESSION DETAIL ND.I THIS D 2 IJ BETWEEN FDRM CABLE BEND BEFORE CONNECTING TO BATTERY TERMINAL PLATE (USE LEAST AMOUNT OF CABLE CON NECTIONS) 4-1/C 250MCM IN 3" AL CONDUIT MIN LG-7R', MA)( LG-102" FROM END OF LUG TO END OF LUG tYPLML MOOR SUPPLIED. TERMINAL PUTEt UAFFAIIM. COAT. ALLII MINKE AKIN NO.OK -ID AMU A 3 FOR ADDITIONAL NOTES, SEE 0014.4BEE-ERODE TORQUE FOR BATTERY CELL CONUSTO ISO IN-LBS (E Em-Les) MFR SUPPLIED CABLES AND LUGS MAY BE REPLACED BY CABLE PER STD N-EM-0035 AND 57D LUG. LEAD PLATED LUG. OR CADIUM PLATED LUG PER STD N-EM-BAT.(SEE DETAIL TA IRIS DWG) REFERENCE DWG'S ELECT NSTALL.TMRIPME BLO6 PLAN EL.61 ELECT RETAIL PARAAL PLAIN TIME 0106. BATT RACKS (AYWT. END I1IC BATTERY AMA4T. FOR NCT 1344 [T1T TIE A UCLEAR SAFETY RELATED n7mN4 EQUIPMENT IS SHOWN ON THIS DRAWING 7 TYPE OR BURNDY CAI YA29 OR YA29LD 2-SB CELL 2STEP BATTERY RACKS ?5OV DC BATTERY-CELL CONNECTION DIAGRAM 4-1/C 253 MCM BOW MIN LG-34-, MAX LC MIN IG-41r, TO 6,I, CABLE MIN REND RADIUS OF 3 4-1/C JUMPERS 500 MCM IF REPLACED BY STATION IN FUTURE) 350 MCM (MFR SUPPLIED. CURRENTLY INSTALLED) LENGTH 4 0. 4 NOTES FOR. INSTALLATION OF UATTERY LEADS IN EXISTING CONDUITS, SEE 0014.4E-1OGT O { 4E-IDLES DI T CONNECTION LAYOUT 125V DC & 250V DC BATTERY CELLS EMI. 1-411-1 5 6 4 HE 4E-1067F UMBER: E D E28

1`4901-3II I/C 125V ITS MIN 8US IA 6J399 COPT 80 9E-16856 I/C TO CIRCUIT BREAKER 1-83B3-DS (SEE NOTE 2> 4E-1389F SEE NOTE BOTTOM STEP SEE DETAIL 2 THIS DUG 125VDC ALTERNATE BATTERY -CELL CONNECTION DIAGRAM I/C TO CIRCUIT BREAKER 69495 1-8303D5 (SEE NOTE 21 4K-13BNF I/C 1255PV M MAIN BUS IA 6J339 C0T R04 4E-I685D TYP) 58 CELL - 2 STEP BATTERY RACK CA 14100 SPARE PTC SEX (SEE NOTE I) A 14109 1 SPLICE CABEE 14160 IN PTC BOX SPLICE CABLES PER CONED STD TI-C-0033

2. CABLES 69495 AND 69496 SHALL DE DISCONNECTED FROM 125V DC ALTERNATE BATTERIES BEFORE AND WHILE THE (25V BE ALTERNATE BATTERIES ARE CONNECTED TO THE DE DISTRIBUTION SYSTEM.
3. NORMALLY DISCONNECTED. PREVIOUSLY CONNECTED PER DETAIL I DC BAU1 1A - CELL CONNECTION DIAGRAM (W/D - 4E-16A71 HEYJSIffiL?'^TE FOR RECORD PER OCR 4-94-137. CMOD M44-)-68-043A, ECN OC-B9E-30 OCR 4 226, CNOO MOT-1 0438, LCH OC - 89E-30 MR 4-94 -241, ONTO M04-I-AA-043C, ECN DC-ME-30 MR 4-94-IB1, ENPC P04 -I-90-D30, ECU 04-00457E, FCR 4 292, FCR 4-94-0)6
12) 2 TOLE LUGS BURPIDY TYPE YA-29-2NDTS UP YA L9 - 2NDTS-LB OR VENSAR SUPPLIED LUGS CA 69)96 CA 69,195 FLAT WASHER FLAT WASHER (TYP)

SCALE L(XKWRSnLA (TYP)..... _...- 1/2'-13 1 t/2' LG HER HEA D D BOLT (TYP) DCULOIPTI[8x SEE REVISIO4'A' MITE 2 TYPICAL VENDER PLATES ALL `2 TYPICAL VENGCR PLATES ALL HARDWARE TU BE COATED WITH HARDWARE TO BE COATED WITH NO-OX-.D GREASE TA-OX-ID GREASE DETAIL-2 DETAIL I (BY SARGENT L LUNDY) 'AWN BY! MIKE HA YES '71Ems..L REVILVLD.: CELL CONNECTION LAYOUT 125V DC ALT BATTERY AND 48/24V DC BATTERY QUAD CITIES STATION UNIT 1 COMMONWEALTH EDISON CO. CHICAGO, ILLINOIS NSB j SECT - DRAWING NUMBER 4E-1067J

APPROVED, 1584)

3L908-3I' 2 M.". 4. uPPEH Ll. 99. ^^ SEE DETAIL 2 - l..'9^ SEA MCM BATTERY LEAD (.) SEE DETAIL 2 x 510 HEM BATTERY LEAD (-) TD CIRCUIT BREAPER 2-8303-DS 2E-23893 125V DC ALTERNATE BATTERY PKK r5 EE58004 A "oICMR111 C0NNECTINO MArtRML 114108)00 14 1i1R 104. MATES 7734 ) ^i5-L YC34.::,,TS S NFR SLPP.,Ii:D LUGS> ANTE OTR (4FEDfTAE1-TNIP vawYLNW ) TERM. LOG COP. L.P. COMPEE YYPE L 4 PER POLARITY NOTES UPPER TIER-- 1 LOWER TIER o8) 111, AMRIHTMSLA^Y me M 0lID 11W 00310E MO UKE M.LY BH RNJ2P HY GARE 100 918) EV CIA%uaP 5IT 10 U.O PLOW LW OR(ARRIK PLV W L04 PE49H OJ¢ 4400 TITW FRD (T ( OfRIT ICS) WIERY LEI /iMl(L1H1k W M 004 M-W TITS RY f4 {OI 6AR4RY U'¢Ul. M INS 6E RM 41'06" O6EYIT0JR MR 0J54M1 BOX 50454441 CABLES 79473 AND 79474 SHALL BE DISCONNECTED FROM 125V BE ALTERNATE BATTERIES BEFORE AND WHILE THE 125V DE ALTERNATE BATTERIES ARE CONNECTED TO THE DC DISTRIBITIDN SYSTEM. O CELL RACK TERM. 4CAOLH CONN.PL TE COP. L.P. 1 RR CONN. TER.CUR 0OPT E. 4PERPOLA0.rtY (GPE NHTP 7^ -pAyE0. TIER M.4O¢SIOO T EO ER. POLTON TY N PER POLARITY CELLRYPT M.4 0AbCE CONNPLAT 000. L.P.1 PH0.CONN. TIGHTEN BOLTED CONNECTIONS SNUG-TIGHT. CJJA pETAR TTP0 P¢Aa1NTT JUMPER L50001Ti0 TNHOOAMWw) REFERENCE DRAWINGS TCRRM.'CAOLU CONN. PLATO OP. L.. i PER CD4U. COP. L. P. IA PER CONNATE ESEGC^EoNS ATUIe61NE 0 OC..NS aNo UPPER TIE EIA.+CAOIa CONN.PLATE UPPER"- O L.P. I PER CONN. (COAT A^. NARDWJ,RH MM N001-{0 24 CELL RAW 290 MCM EA-ER-LEA0.POEITIUMCA.T19M 2b MCM BATTERY LEAD-NEGATIVE- 00.71475 SRECU.104 COP. L.P. COMPRESSION TYPE PER PoLwR{TY MI CELL RACK TERM. CUR COO P.A 1 PER POLARITY (A HOLE OURNUY TYPE THUS.INOR-LO OR wl_ PPIIED LUGS. 125V DC 13ATTERI(PEEM) C04yELTING MATERML RSOUI¢HO 104 INIERCELL LONNECTRM3, 4 THICK O 04" MOH A M'% LONG 12 TERMINAL PLATES 354 W:H SDDV 4-111. 41ST_H NOTU.T0' LM MAY..LENSTN--K" .uNGYN - s4*.ORP AIA.Y.taNOTN-4t" uCTI¢ fi PPaM cneu NNOOiows wEPOEE CTNNHCTIN O. OAttO¢T >>oAMIAL fLLTO ---cA 79473 FLAT VASTER b TYP) HF0 5/1 (TYP) ISLE NOTE 7) LTOCP WASH 2 TYPICAL VENEER PLATES ALL HARDWARE 10 BE COATED WITH 4E1-O%-ID GREASE 125V DC BATTERY CELL CONNECTION LAYOUT FLAT WADM:R (TYP) 1/2-13 x I 1/2' LG HEX HEAD BAT (TYP) RE 3215110/ FOR RECLBHI PER DCR 4 -9S-DXI THW T. NUCLEAR SAFETY RELATED NMaMIU4T -1. DETAIL NO.I NIN O¢ww NTS DRAWING RELEASE RECORD REV. E DATE' DRAWN BY JACK BUM) PREPARED (BY SARGENT L LUNDY) REVIEWED. SEE MICROFILM FOR SIGNATURES (SILT _OWLT (SLL) QUAD CITIES STATION UNIT 2 COMMONWEALTH EDISON CO. CHICAGO, IWNOIS 4E-2067E DETAIL}}

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