IR 05000369/1979034
| ML19291C092 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 10/15/1979 |
| From: | Conlon T, Miller W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19291C080 | List: |
| References | |
| 50-369-79-34, 50-370-79-20, NUDOCS 8001180437 | |
| Download: ML19291C092 (7) | |
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'o UNITED STATES I'
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NUCLEAR REGULATORY COMMISSION n
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REGION 11
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c ATLANTA, G EORGIA 30303 OCT 191979 Report Nos. 50-369/79-34 and 50-370/79-20 Licensee: Duke Power Company 422 South Church Street Charlotte, North Carolina 28242 Facility Name: McGuire Docket Nos. 50-369 and 50-370 License Nos. CPPR-83 and CPPR-84 Inspection at M ire Site near C tte, North Carolina Inspector:[
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W. H. Miller, Jr.
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Date Signed
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Approved by
/4 -/,5 - 7 9 T. E. Conlon, Section Chief, RC&ES Branch Date Signed SUMMARY Inspection on September 11-14, 1979 Areas Inspected This routine, unannounced inspection involved 26 inspector-hours onsite in the areas of fire protection / prevention.
Results Of the areas inspected, four apparent deviations were found. Deviations; Inadequate fire protection system for QA records storage vault - Paragraph 5; Inadequate procedure for flushing fire protection piping systems - Paragraph 6(b); Substandard sprinkler system installation for Unit 1 Battery Room 701 -
Paragraph 6(c); and Substandard fire protection piping supply system to auxiliary building - Paragraph 6(e).
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DETAILS 1.
Persons Contacted Licensee Employees J. C. Rogers, Project Site Manager
- G. W. Grier, Project Engineer
- J. R. Hendricks, Senior Design Engineer T. C. Roberts, Design QA/HQ
- J. M. Cooke, Facilities Engineer
- K. S. Kisida, QA Engineer / Construction
- G. A. Copp, Nuclear Engineer / Production
- S. G. Crews, Design Engineer H. E. Gibson, Technical Associate R. G. Kirby, Engineer Associate J. E. Reeves, Technical Specialist
- J. W. Glenn, Associate QA Engineer
- Attended exit interview
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Exit Interview The inspection scope and findings were summarized on September 14, 1979 with those persons indicated in Paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items are matters about which more information is required to determine whether they are acceptable or may involve noncompliance or deviations. New unresolved items identified during this inspection are discussed in paragraphs 6(b), 6(d) and 7.
5.
QA Records Storage Facility An inspection was made of the construction site QA records storage facility.
This facility is located within a file room in the construction administra-tive building, and is separated from the remainder of the building by adequate fire resistance rated construction. However, an automatic fire suppresion system is not provided.
Section 17.1.17.4 of the FSAR states that the storage facility is constructed, located and secured in accordance with ANSI Standard N45.2.9, " Requirements for Collection, Storage and Maintenance of QA Records for Nuclear Power Plants".
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Section 5.6 of ANSI N45.2.9 requires that QA records storage facitlities be provided with a fire protection extinguishing system. Duke's QA Procedure QA-301 requires the records storage facitlity at a construction site to be-provided with either a " dry chemical or gas fire protection" system. The lack of an automatic fire suppression system for the QA records storage facility is a failure to meet a commitment with the NRC and is identified as Deviation (369/79-34-01, 370/79-20-01), Inadequate Fire Protection System for QA Records Storage Room.
6.
Permanent Plant Fire Protection Systems An inspection was made of the following permanent plant fire protection systems:
a.
Fire Pump Section E.2.(c) of the licensee's McGuire Nuclear Station Fire Protec-tion Review (FPR) states that the fire pump installation is designed to meet the standards developed by the National Fire Protection Association (NFPA) where practicable. The applicable standard or code for fire pump installations is NFPA-20, " Centrifugal Fire Pumps".
The fire pump installation at the site does not meet the provisions of NFPA-20 due to the following:
(1) The controllers / motor starters for pumps A and B are located within the turbine building and not adjacent to and within sight of the pump motors as required by Section 7-2.1 of NFPA-20.
(2) The arrangement of the water pressure sensing lines between fire protection system and pressure-activated switches are 1/8 inch in diameter in lieu of 1/2 inch minimum as specified by Section-5.2.1 and Figure A-7-5.2.1 of NFPA-20.
Also the water sensing lines are not provided with the required check valves, test connections, and related devices.
(3) The pump starting circuits from the pressure sensing system which are external from the pump controllers / motor starters are not electrically supervised, nor arranged such that breakage, dis-connecting, shorting of the wires or loss of power to the circuits will cause continous running of the fire pumps as required by Section 7-5.2.5 of NFPA-20.
(4) Controllers for Pumps A and B are not listed by Underwriters Laboratories, Inc.
(UL) or approved by Factory Manual Laboratories Inc.
(FM) for use on electric motor driven fire pumps as required by Section 7-1.1.1 of NFPA-20.
(5) The fire pumps are not provided with labels or otherwise identified to verify that the pumps are actually listed by UL or approved by FM for fire pump service as required by Section 2-2 of NFPA-20.
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-3-The above five items are identified as Unresolved Item (369/79-34-2 and 370/79-20-2), Substandard Fire Pump Installation, pending further evaluation by the NRC.
The electric motor for Fire Pump A has been removed to repair a defec-tive bearing. Also, an automatic air rele:se valve is not provided on the discharge pipe from this pump as required by Section 4-3.5.2 of NFPA-20. The licensee advised that these items will be corrected prior to fuel loading. This item is identified as Inspector Followup Item (369/79-34-3 and 370/79-20-3), Repairs to Fire Pump A, and will be reinspected during a subsequent NRC inspection.
b.
Fire Protection Exterior Water Systems (1) The licensee advised that all underground piping had been hydro-statically tested at 200 psi for two hours. The following hydro-static tests on the water system were reviewed and found to be satisfactory:
Location Valve Nos.
Supply main to auxiliary building:
IRY-33 to IRF-397 Supply main to auxiliary building:
IRY-36 to IRF-396 Main South of Turbine building:
IRY-29 to IRY-25 North Side of auxiliary building:
IRY-18 to IRF-34 (2) The flushing test procedure, Construction Procedure CP-419, was reviewed. This procedure provided an adequate description for flushing the underground and interior fire protection water piping, but failed to specify the minimum flow rate for various pipe sizes. The minimum flow rates required for fire protection systems are listed by Section 8.8.2 of NFPA-24, "Outside Protec-tion", Section 1-11.2.2 of EFPA-13, " Sprinkler Systems", and Section 7-1.2.1 of NFPA-14, " Standpipe and Hose Systems".
Sections E.3.(c) and E.3.(d) of FPR state that the fire protec-tion piping systems will be installed to meet the applicable NFPA standards. Flushing test records were reviewed and even though the flow rates were not indicated it appears that the water supply loop around the plant was properly flushed. However, it appears doubtful that sufficient flow velocity was achieved in the supply piping to the auxiliary building due to the physical arrangement of the piping and the use of a 1\\ inch hose for the flushing water supply. Also, it appears that other portions of the standpipe and sprinkler system may not have been properly flushed.
The lack of an adequate procedure to assure that the fire pro-tection piping systems will be properly flushed is a failure to i
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Sprinkler System - Unit 1, Battery Room 701 c.
An automatic wet pipe sprinkler system is provided beneath the cable trays in unit 1 portion of battery room 701 between column lines 53BB/54BB and 53DD/54DD. Sections E.3.(c) and F.7 of F.PR state that this area will be provided with sprinkler protection and that the sprinkler system will meet the provisions of NFPA-13, " Sprinkler Systems". However, the sprinkler system for this area does not meet the provisions of NFPA-13 due to the following:
(1) Upright type sprinkler heads are installed in the pendent position which is not permitted by Section 3-16.2.2 of NFPA-13.
(2) The sprinkler heads are not provided with the heat shields as indicated on the construction drawings and as required by Section A-3-16.8 of NFPA-13.
(3) Sprinkler protection is not provided beneath the cable between column lines 53A/54AA and 53BB/53BB and the spacing between the end head and the wall at column line 53AA/54AA is approximately 18 feet. Also, this end head is obstructed by the structural supports for the cable trays.
Sections 4-1.1.2 and 4-2.1.4 of NFPA-13 requires that the maximum distance between walls and end sprinklers is not to exceed 7.5 feet.
(4) Provisions are not provided to properly test the water flow alarm indicator. Sections 3-9, 3-17.4 and 3-17.6 of NFPA-13 require that waterflow detecting devices be tested by actual waterflow thru a test connections arranged as indicated by Figure A-3-9.1.2 of NFPA-13.
(5) Also, refer to Paragraph 6(e) item (2).
This substandard sprinkler system installation is a failure to meet a commitment to the NRC and is identified as Deviation Item (369/79-34-5 and 370/79-20-5), Substandard Sprinkler System Installation for Unit 1 Battery Room 701. These same items may also be applicable to other systems installed at the plant.
d.
Cable Spreading Room - Units 1 and 2 A manually actuated " fog-type" sprinkler system is installed in each cable spreading room. Section E.3.(c) of the FPR states that sprinkler systems will conform to the requirements of NFPA-13 " Sprinkler Systems",
and NFPA-15 " Water Spray Fixed Systems". Section F.3(a).(1) of the FPR states that a manual water fog system ~is to be provided for the cable spreading rooms. However, the Water spray systems provided do not meet all of provisions of the NFPA codes and the FPR due to the following:
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(1) The systens are designed to discharge water at a density of 0.10 gpm per square foot of floor space where as Section F.3.(a).1 of the FPR states that the system will be designed to provide a density of 1.5 gpm per sqaure foot.
Section 4-4.1.4 of NFPA -15 requires an inpingement at a density of 0.15 gpm per square foot directly on the horizontal or verticle plane containing the cable trays.
(2) The nozzles are arranged to discharge water spray. downward and not directly into or in the cable trays as required by Section 4-8.2 of NFPA-15.
(3) The installed nozzles have a different discharge characteristic (K factor of 4.08) than the nozzles used in the hydraulic calcula-tions (K factor of 2.13).
The system design calculations were based on a Grinnel Protectospray Nozzle D3-21 whereas a model D3-28 was actually installed.
(4) The system is manually activated whereas Sections 4-4.1.4 and A-4-4.1.4 state that manually operated systems for cable pro-tection is not effective due to the rapid deterioration of the cable insulation when exposed to fire.
(5) Water Flow alarm indicators (paddle type) are installed on the system side of the central valve.
Section 3-1.7.3.4 of NFPA-13 prohibits use of this type valve in a dry system since the surge of water when valve is opened may seriously damage the waterflow indicator.
The water spray systen for the cable spreading rooms was provided at the request of the NRC(NRR). Therefore these substandard fire protection system are identified as Unresolved Item (369/79-34-6 and 370/79-20-6), Substandard Water Spray Fire Protection System for Cable Spreading Rooms, pending further review by the NRC.
Fire Protection Water Supply to Auxiliary Building e.
The fire protection systems within the auxiliary building are supplied from two 12-inch supply mains each of which contain a normally closed valve with a 1-inch bypass provided around each valve to maintain water pressure within the piping system. Sections E.3.(c) and E.3.(d?
of the FPR state that the fire protection piping systems will conform to the applicable NFPA Standards (NFPA-13, " Sprinkler Systems", NFPA-1,
" Standpipe and Hose Systems", and NFPA-15, " Water Spray Fixed Systeus").
However, the water supply piping to the fire protection systems withir the auxiliary building does not meet the applicable NFPA standards de to the following:
(1) The normally closed deluge valves which control the water supply into the system are manually activated from. manual stations
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The elec-trical circuits to these valves are not electrically supervised as required by Sections 1-6.1 and 5.3.6 of NFPA-13 and 8-5.2 of NFPA-15.
(2) The sprinkler system waterflow alarm devices are not arranged to activate the deluge valves controlling the water supply to the fire protection piping systems as required by Sections 5-1.1 and 5.3-1 of NFPA-13.
(3) The arrangement of the 1-inch by pass and proposed associated alarm devices will not provide a reliable means of supervising the piping systems as required by Sections -14.2.3 and 5-3.5.2 of NFPA-13.
This item is a failure to meet a commitment with the NRC and is identified as Deviation Item (369/79-34-7 and 370/79-20-7)
Substandard Fire Protection Piping System to Auxiliary Building.
7.
QA Program for Fire Protection System Installation Adequate QA procedures are provided for design and procurement control, inspection and tests and for control of noncomforming items for the permanent plant fire protection systems designed after Januray 1,1978.
However, procedures are not provided to identify the type, scope and frequency of audits to be provided for the fire protection system installations. Section C.10 of FPR states that QA Department will conduct and document audits to verify compliance with the fire protection program.
The licensee agreed to review this area and initiate appropriate corrective action. This item is identified as Unresolved Item (369/79-34-8 and 370/79-20-8) Inadequate QA Procedure for Auditing Fire Protection System Installations, and will be reevaluated during a subsequent NRC inspection.
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