ML20126M219
| ML20126M219 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 01/06/1993 |
| From: | Brian Holian Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| IEIN-92-018, IEIN-92-18, NUDOCS 9301080236 | |
| Download: ML20126M219 (24) | |
Text
{{#Wiki_filter:& January 6,199/ v.' Docket Nos. 50-445 and 50-446 LICENSEE: Texas Utilities Electric Company (TV Electric) FACILITY: Comanche Peak Steam Electric Station (CPSES), Units 1 and 2
SUBJECT:
SUMMARY
OF MEETING ON CPSES FIRE PROTECTION ISSUES A meeting was held on December 17, 1992 to review the findings from the fire protection inspection (conducted at CPSES the week of November 16, 1992) and to discuss related fire protection issues (e.g.,1herma-lag ampacity, combustibility, etc.). Six unresolved items and six inspector follow-up items were discussed with 1U Electric personnel at the inspection exit meeting on November 20, 1992. All of these items were discussed again at the meeting for the NRR staff to assess potential impacts for the Unit 2 licensing process. The primary issue discussed was potential fire-induced short circuiting of motor-operated valve circuitry initiated by a control room fire. (This issue was the subject of NRC Information Notice 92-18, " Potential for loss of Remote Shutdown Capability During a Control Room Fire", dated February 28,1992). Although TU Electric considers this scenario to have an extremely low probability, they committed at the meeting to implement design changes in the control circuits of the affected motor-operated valves (as required) prior to startup from the first refueling outage for Unit 2 and the third refueling outage for Unit 1. This commitment was documented in a letter from TV Electric dated December 23, 1992. Thermo-lag testing and raceway support qualification issues were discussed in general. TV Electric committed to update their engineering report on Thermo-lag by December 24, 1992. (Note: This update was received by letter of December 23, 1992 from TV Electric). The staff is continuing their review of the TV Electric test results and engineering documents and will address Thermo-lag issues in a future safety evaluation. Original Signed By Brian E. Holian, Senior Project Manager Project Directorate IV-2 9301080236 930106 Division of Reactor Projects III/IV/V ADOCK 0500 S $DR Office of Nuclear Reactor Regulation
Enclosures:
QlSTRIBUTION: 1. Attendance List Docket Filot TBergman 2. Meeting Handouts NRC PDR OGC Local PDR EJordan cc w/ enclosures: PDIV-2 RF ACRS (10) See next page y */Q Q; l PDIV-2 PF LYandell, RGN-IV JPartlow NRC Participants I JRoe EPeyton a l MVirgilio TMurley/FMiraglia JShankman RArchitzel / ~~~ 0FFICE PDIV-2/LA PDIV-2/PM. SPLB PDIV-2/D p Eeyb BHolianIn[ RArchitzel sSB1ackN wm om 1/N /93 1/'//93 1/k/93 1/o4 /93 / / r i Document Name: MIG. Sum; c:\\wp\\ cpl &2 k
.~ .,1 N: 2-cc'w/ enclosures: -Senior Resident-Inspector Jack-R. Newman, Esq. U.S. Nuclear Regulatory Commission-Newman & Holtzinger >P. O. Box 1029 1615 L--Street, N.W. Granbury, Texas 76048 Suite.1000 Washington, D. C. =20036-Regional Administrator, Region-IV U.S. Nuclear. Regulatory Commission Chief, Texas Bureau of Radiation Control 611 Ryan Plaza Drive, Suite 1000 Texas. Department of Health Arlington, Texas 76011 1100 West-49th Street Austin, Texas. 78756 Mrs. Juanita Ellis, President Citizens Association for Sound Energy Honorable Dale McPherson 1426 South Polk County Judge Dallas, Texas 75224 P. O. Box 851-GlenLRose, Texas: 76043 Owen'L. Thero, President -Quality Technology Company - Mr. William J. Cahill.. Jr. Lakeview Mobile Home Park, Lot 35 Group Vice President -4793 East Loop 820 South TV Electric-fort Worth, Texas 76119 -400 North Olive Street, L.B. 81 Dallas, J Texas 75201 . Mr. Roger _ D. ' Walker, Manager Regulatory Affairs for Nuclear-Engineering Organization Texas = Utilities Electric-Company, 400 North 0 live Street, L.B. 81-Dallas,. Texas - 752rl Texas Utilities Electric Company _ c/o Bethesda Licensing 3 Metro Center, Suite 610 -Bethesda, Maryland - 20814 iWilliam A.-Burchette, Esq. - Counsel _ for Tex-La Electric Cooperative of Texas--
- Jorden,: Schulte, & Burchette 1025 Thomas Jefferson Street, N.W.
Washington, D.C. 20007 s GDS Associates, Inc. ' Suite 720 1850 Parkway-Place Marietta, Georgia 30067-8237 -av ma-g- m e--* s>
-Enclosure 1 -l: . MEETING ATTENDEES HAMES ORGANIZATION Brian Holian -NRC Steven West NRC Ralph Architzel NRC Conrad McCracken NRC Patrick Madden NRC Ronaldo V. Jenkins NRC Paul Gill NRC Suzanne Black NRC Donna Skay NRC Roger Walker TV Electric Charles L. Terry TV Electric-Richard L. Dible TV-Electric K.N. Khanna TV Electric H'
TU ELECTRIC FIRE PROTECTION INSPECTION STATUS MEETING DECEMBER 17, 1992 NRC MEETING FIRE PROTECTION INSPECTIPM e UNRESOLVED ITEMS e INSPECTOR FOLLOWUP ITEMS THERM 0-LAG e TESTING e UNIT 2 TESTS e UNIT 1 TESTS USE OF UNIT 1 TESTS IN UNIT 2 ~ e e AMPACITY e COMBUSTIBILITY RACEWAY SUPPORT GUALIFICATION e e WEIGHT e II OVER I
a NRC FIRE PROTECTION INSPECTION (446/92-49) NOVEMBER 16-20.1992 STATUS OF UNRESOLVED ITEMS ITEMS STATUS e SPRINKLER HEAD e DISCUSSED WITH STAFF TEMPERATURE RATINGS DURING 12/15/92 212*F VS 165'F TELECONFERENCE POSITION PAPER DESCRIBING BASIS FOR 212*F TEMPERATURE RATINGS HAS BEEN DEVELOPED. SUPPRESSION SYSTEM e DISCUSSED WITH STAFF " WATER CURTAIN" FOR DURING 12/15/92 SEPARATION OF REDUNDANT TELECONFERENCE. SAFETY CHILLER ADDITIONAL INFORMATION TO COMPONENTS BE PROVIDED TO STAFF. FOLLOWUP INSPECTION SHOULD RESOLVE CONCERNS. TURBINE TRIP DELAY DUE TO e MANUAL ACTION FOR TURBINE AUTO TRIP FAILURE TRIP FROM CONTROL ROOM TO BE INCORPORATED INTO ABN 803 PROCEDURES BY 1/11/93
UNRESOLVED ISSUED (CONT.) e EMERGENCY LIGHTING 'e REPLACE BATTERY PACK:5 IN BATTERY PACK DEGRADATION CONTAINMENT EVERY IN HIGH TEMP PLANT AREAS REFUELING OUTAGE AND (RCB, MS PIPING AREAS) OTHER BATTERY PACKS EVERY . 3 YEARS e VENDOR SAMPLE 10% OF BATTERY PACKS e FUNCBONAL CHECK EVERY 6 MONTHS e PRESENTLY EVALUATING EFFECTS OF TEMPERATURE ON BATTERY LIFE TEST / MAINTENANCE e P.M,'S PARTS IN PLACE FOR PROGRAM FOR THOSE SAFE ALL 6.9KV AND 480V SHUTDOWN CIRCUlT BREAKERS. PACKAGE WILL BE BREAKERS, RELAYS, MCCB'S AVAILABLE FOR FOLLOWUP NOT COVERED BY TECH SPECS INSPECTION (1/11/93) e ASSOCIATED CIRCUIT CABLE e CALCULATION 2-EE-53 HAS FAILURES FROM HIGH BEEN REVISED TO INCLUDE IMPEDANCE FAULTS MORE CONSERVATIVE CIRCUlT SAMPLE SIZE. CIRCulT BREAKER MODS TO BE COMPLETELY INSTALLED PRIOR TO FOLLOWUP INSPECTION (1/11/93) e TU ELECTRIC POSITION ON IN SEE SLIDES 92-18, CONTROL ROOM FIRE INDUCING MOV CIRCUlT HOT SHORTS
4 CONCERNS RAISED VIA NRC INFORMATION NOTICE 92-18 THERMAL OVERLOAD RELAY PROTECTION IS BYPASSED IN MOTOR OPERATED VALVE CONTROL CIRCUlTS AT SOME PLANTS. HOT SHORTS IN THESE CIRCUlTS COULD CAUSE MOTOR FAILURE DISABLING SUBSEQUENT REMOTE OPERATION OF THE ~ MOV. HOT SHORTS IN THESE CIRCUlTS COULD CAUSE MECHANICAL DAMAGE TO THE VALVE COMPONENTS RENDERING . SUBSEQUENT MANUAL REPOSITIONING IMPOSSIBLE.- 4 + om.
m. __. _ _ p.- INFORMATION NOTICE 92-18 MOV HOT SHORT: NOT A SIGNIFICANT SAFETY CONCERN BASED ON EXTREMELY LOW PROBABILITY OF A FIRE OF THE MAGNITUDE NECESSARY TO CAUSE SEVERE CABLE DAMAGE THAT WOULD EXPOSE SPECIFIC CONDUCTORS TO HOT SHORT CONDITIONS.. MODIFICATION OUTLINE: HARDWARE MODIFICATIONS e SOFTWARE MODIFICATIONS -g gg 9ew g v -,e-r y N-w +y-T*
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IN 92-18 MODlHCATIONS l 4 HARDWARE MODIFICATIONS (FlGURES 1. AND Er DETERMINE WHICH SAFE SHUTDOWN MOV'S REQUIRE MODIFICATION FROM REVIEW OF FIRE SAFE SHUTDOWN ANALYSIS (FSSA). LOCATE TORQUE / LIMIT SWITCH CONTACTS BETWEEN THE CONTROL ROOM / CABLE SPREAD ROOM / HOT SHUTDOWN PANEL (IF APPLICABLE) AND THE ASSOCIATED MOTOR CONTROL CENTER. TYPICALLY SPARE-CONDUCTORS OF AN EXISTING CABLE ARE AVAILABLE. DETERMINE CABLES WHICH REQUIRE PROTECTION ll. SPECIFIC FIRE' AREAS BY COMPARING NEW CIRCUlT CONFIGURATION TO EXISTING CIRCUlT CONFIGURATION. BY FIRE AREA. t ADD THERMOLAG/ RADIANT ENERGY SHIELD AS REQUIRED TO S ATIS FY FSSA REQUIREMENTS.
IN 92-18 MODIFICATIONS' SOFTWARE MODIFICATIONS UPDATE FSSA CALCULATION-UPDATE SEPARATION CALCULATION MODIFY ABNORMAL O PER ATING PROCEDURES (ABN) PREPARE 50.59 SAFETY EVALUATION REPORT UPDATE FIRE PROTECTION REPORT UPDATE FSAR. J .r 4 1,, - c ~
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NRC FIRE PROTECTION INSPECTION (446/92-46) NOVEMBER 16-20.1992 STATUS OF FOLLOWUP ITEMS _ IS1UE STATUS VERIFICATION OF SPRINKLER POST CONSTRUCTION SYSTEM AND FIRE DETECTION WALKDOWNS TO BE SYTSEM COVERAGE COMPLETED WITH ANY DISCREPANCIES DISPOSITIONED PRIOR TO FOLLOWUP INSPECTION (1/11/93) DISCREPANCIES IN ABN PROCEDURE TO BE REVISED TO PROCEDURE FOR CONTROL RESOLVE DISCREPANCIES ROOM FIRE SCENARIO PRIOR TO FOLLOWUP INSPECTION (1/11/93) EMERGENCY ADEQUACY OF COMMUNICATIONS ADEQUACY COMMUNICATIONS CAPABILITY BETWEEN HSP AND AREAS REQUIRING ACTIONS DURING SHUTDOWN TO BE VERIFIED PRIOR TO FOLLOWUP INSPECT:ON (1/11/93) EMERGENCY LIGHTING e ADEQUACY OF ILLUMINATION BLACKOUT TESTING LEVELS TO BE VERIFIED VIA BLACKOUT SIMULATION TESTING PRIOR TO FOLLOWUP INSPECTION (1/11/93) FIRE BRIGADE RESPONSE CAUTIONS TO BE PROCEDURES FOR THERMO-INCORPORATED INTO PRE-LAG CONCERNS PLANS AND ADMIN CONTROLS FOR HOSE NOZZLES IN PLACE PRIOR TO FOLLOWUP INSPECT 10N (1/11/93)
FOLLOWUP ITEMS (CONT.) INSTALLATION OF-ALL PENETRATION SEALS TO PENETRATION SEALS BE INSTALLED PRIOR TO FOLLOWUP INSPECTION (1/11/93) e PERIODIC ASSESSMENT OF REQUIREMENT FOR LEVEL RCP LUBE OIL COLLECTION CHECKS TO BE INCORPORATED-TANK LEVELS INTO PREVENTIVE MAINTENANCE PROGRAM FOR EACH RFO BY 12/31/92 e
'U. '1 TEST PLAN Rev. O AMPACITY DERATING TESTS OF ARTICLES PROTECTED WITH THE THERMO LAGS
- FIRE BARRIER SYSTEM 1.0 SCOPE This test plan describes the methods and guidelines to be utilized for the preparation of test specimens, installation of the THERMO LAG 8 (hereafter referred to as "Thermo Lag") Fire Barrier Systems, performance of ampacity
~ derating tests and all applicable documentation of these tasks and the test results. 2.0 OBJECTIVE The objective of these tests is to determine the ampacity derating factors forla protective generic fire barrier system for redundant essential cables at TU Electric's. Comanche Peak Steam Electric Station. Results of this test program will provide documented evidence of the necessary current derating factors for a wide variety of raceway configurations. These tests shall satisfy the requirements for ampacity derating by testing the cable raceway fire barriers as detailed in the IEEE P848/D11 " Procedure for the Datermination of the Ampacity Derating of Fire Protective Cables," Draft 11, dated April 6,1992, Underwriters Laboratories Subject 1712 " Outline of Investigation for Tests for Ampacity of Insulated Electrical Conductors Install 4d in Fire Protective Systems," Issue Number 1, July 1984, and, in the absence of other standards for.these specific types of tests, standard practice shall be invoked. Variations in this test procedure from the-standards referenced will be documented in the final test report.
3.0 REFERENCES
3.1 Documents n 3.1.1 IEEE P848/D11, Procedure for the Determination of the-Ampacity Derating of Fire Protective Cables," Draft 11, April 6,1992. 3.1.2 Underwriters Laboratories Subject.1712 Outline of. Investigation for Tests for Ampacity_ofInsulated Electrical-Conductors Installed in Fire Protective Systems, Issue No.1,- July 1984.
2 i 3.1.3 Thermal Science, Inc.'s Technical Note 20684, Revision V "THERMO LAG 330 Fire Barrier System, Installation Procedures Manual, Power Generating Plant Application," including TSI letters of clari6 cation thereto. 3.1.4 Specification CPES M 2032, Rev. O, " Procurement and Installation of Fire Barrier and Fireproofing Materials." 3.1.5 M2 1701, "Thermo-Lag Typical. Details" a. Sheet 01, Rev. CP 1 b. Sheet 02, Rev. CP 1 c. Sheet 03, Rev. CP 1 d. Sheet 03A, Rev. CP-1 e. Sheet 03B, Rev. CP 1 f. Sheet 04, Rev. CP-1 g. Sheet 04A, Rev. CP 1 h. Sheet 05, Rev. CP 1 i. Sheet 05A, Rev. CP 1 j. Sheet 06, Rev. CP 1 k. Sheet 07, Rev. CP-1 1. Sheet 08, Rev. CP 1 m. Sheet 09, Rev. CP-1 n. Sheet 10, Rev. CP 1 o. Sheet 11, Rev. CP-1 p. Sheet 12, Rev. CP-1 q. Sheet 13, Rev. CP 1 r. Sheet 14, Rev. CP 1 s. Sheet 15, Rev. CP-1 3.1.6 Construction / Quality Procedure CQP CV-107, Rev. O, " Application of Fire Barrier and Fireproofing Materials." 3.1.7 Specification CPES-E 2004, Rev.1," Electrical Installation." 3.1.8 Construction / Quality Procedure CQP EL 222, Rev. 1, " Installation and Fabrication of Conduit Raceway Systems." 4.0 RESPONSIBILITIES 4.1 Texas Utilities Electric (TU Electric) and Associated Contractor Organizations 4.1.1 Establish the criteria, guidelines, drawings (draft quality), recommendations, etc., to govern the installation of the test 1
3 items. Supply the test item pieces, including all hardware, electrical cables, conduit, tray systems, etc. 4.1.2 Establish the criteria, guidelines, drawings (final, report-quality if needed), recommendations, etc., to govern the installation of the Thermo Lag Fire Barder System Materials to the test articles. 4.1.3 Provide the specific Thermo Lag installation procedures and work package documentation. ~ 4.1.4 Provide materials representative of existing or future site installations. 4.1.5 Provide the Thermo Lag Fire Barder System materials and installation tools and equipment. 4.1.6 Provide scheduling of personnel, equipment and material necessary to perform the installation and QC documentation of the fire barrier system materials utilizing the appropriate installation procedures. 4.1.7 Coordinate all phases of the ampacity test preparation with the testing organization including approval of variations from the standard test methods, 4.1.8 Apply the fire barrier system to the test articles. 4.1.9 Supply QC and construction personnel-to witness and document assembly and test article raceway configurations. 4.1.10 Perform as a liaison with the testing organization and provide the testing organization with all applicable TU Electric-Documents as identiSed in Section 4.1. 4.1.11 Provide all applicable quality control: documentation for the fire barrier system-materials, cables, and installation of the fire barrier system and penetration seal materials to each test article. 4.2 Omega Point Laboratories, Inc. (Laboratory) 4.2.1 Prepare. the test assemblies and provide all required test instrumentation in accordance with Appendix B Quality Assurance and Quality Control Programs and other applicable procedures.
4 4.2.2 Provide thermocouple calibration and instrumentation, storage temperature recorder, surface temperature probe and relative humidityinstrumentation. 4.2.3 Assemble, install and document the installation of all trays, conduits, cables, etc. to be supplied by TU Electric. Provide computer-generated drawings of tray, conduit and cabling systems which clearly indicate dirnensions, thermocouple locations, etc. 4.2.4 Observe and document the installation of the Thermo Lag Fire Barrier System Materials to the test articles, and attendant instrumentation on each test article. 4.2.5 Conduct the ampacity baseline and derating tests. 4.2.6 Document the test parameters and provide a formal detailed written report of the test program and test results. 4.2.8 Provide VHS video and 35mm photographic coverage of the test project. 4.3 Laboratory Quality Assurance / Quality Control 4.3.1 Verify and document the quality control documentation of the fire barrier system materials used in the test program. 4.3.2 Perform and document inspections of the fire barrier system materials at various points during the installation process. 4.3.3 Verify and document that TU Electric's installation procedures are utilized in the installation of the fire barrier system materials. 4.3.4 Inspect and document the construction and instrumentation of the test articles. 4.3.5 Provide written calibration documentation of all thermocouples, measurement devices and data acquisition systems used in this test program. 5.0 SPECIAL PRECAUTIONS 5.1 Precautions For Installation Of The Fire Barrier System Materials 1
5 5.1.1 Observe specific precautions recommended by Thermal Science, Inc. and other's material safety data sheets. 6.0 PREREQUISITES 6.1 General Test Configuration Requirements The conduits, cables and cable loading used in this test program shall be representative of those configurations used, and shaal be specified and designed by TU Electnc. 6.2 Traceability Requirements To insure that the materials used in this test are representative of those in actual use at Comanche Peak Steam Electric Station (CPSES), all aspects of traceability as required by the Laboratory QA Program shall be applied. The cables used in this test program shall be traceable to ti.e respective cable manufacturer and shall be su pplied by TU Electric or the Laboratory with documentation of traceabiaty. All thermocouples used in this test program shall be traceable to the respective thermocouple manufacturer, with calibration certification. 6.S Dimensioned Drawings All test articles shall conform to the rough draft dimensioned drawings provided by TU Electric during assembly of the test articles. Final, dimensioned drawings will be prepared by the Laboratory. 6.4 Test Configuration 6.4.1 Cable Tray Test Article A single tray article will be tested: that described in the IEEE P848/D11 draft test method. a. A 24" wide x 4" deep straight section ofladder back cable tray,12 feet long (Scheme AT-1). 6.4.2 Conduit Test Articles 1 Five (5) configurations (i.e. " Schemes") of galvanized rigid steel conduit sup:? lied by TU Electric will be tested. All will be 12 feet long and wi J contain electrical cables as described.
6 a. A 3/4" diameter conduit, with a single W 026 cable, clad in a 1/2 inch thick layer of Thermo Lag with a 1/4" overlay (Scheme AC 1), b. A 2" diameter conduit, with two W 020 cables, clad in a 1/2 inch thick layer of Thermo Lag with a 1/4" overlay (Scheme AC 2), c. A 1" diameter conduit, with a single W 026 cable, clad in a 1/2 inch thick layer of Thermo Lag (Scheme AC 3).. d. A 1 1/2" diameter conduit, with a single W 020 cable, clad in a 1/2 inch thick layer of Thenno Lag (Scheme AC 4). e. A 5" diameter conduit, with 10 lengths of W 026 cable, clad in a 1/2 inch thick layer of Thermo Lag (Scheme AC-5). 6.4.3 Air Drop Test Articles Eight (8) configurations (i.e. " Schemes") of cable bundle air drops supplied by TU Electric will be tested. Each will consist of a 12 foot long cable bundle as described below, A single W 020 cable clad in three layers of 660 Flex a. Blanket (Scheme AA 11). b. A single W-020 cable clad in four layers of 660 Flex Blanket (Scheme AA 12), A 2" diameter bundle (3 pes) of W 020 cables clad in three c. layers of 660 Flex Blanket (Scheme AA 21). d. A 2" diameter bundle (3 pes) of W-020 cables clad in four layers of 660 Flex Blanket (Scheme AA 2 2). e. A 21/2" diameter bundle (4 pes) of W 020 cables clad in two layers of 660 Flex Blanket (Scheme AA 31). f. A 21/2" diameter bundle (4 pes) of W 020 cables clad in three layers of 660 Flex Blanket (Scheme AA 3 2). g. A 6" diameter bundle (31 pes) of W 020 cables clad in two layers of 660 Flex Blanket (Scheme AA 41).
Q 7 h. A 6" diameter bundle (31 pes) of W.020 cables clad in three layers of 660 Flex Blanket (Scheme AA 4 2). 6.6 Cable Installation An itemized listing of cable types and quantities including density fill to be installed in the test articles will be prepared by the Laboratory and included in the final report. Cable location within the test articles shall be documented and included with data to be evaluated by the testing laboratory. All conductors inside each test article will be connected into a single, series electrical circuit. 6.7 Thermocouple Installation All thermocouples used in this test program shall be provided and installed by the Laboratory, with QC surveillance by Laboratory personnel. The thermocouple wires shall be calibrated (by Lot No.) prior to installation and/or use, and applicable quality control documentation for record purposes ger crated. All thermocouples will consist of 24 GA, type K, Chromel Alumel 'Special Limits of Error: 1.1'C) electrically welded thermojunctions. Calibration will consist of manufacturer supplied (and audited) certiScations of calibrations at five temperatures of thermocouples taken from both ends of each purchased lot number. All thermocouples shall be located on and within each test article in accordance with the IEEE P848/D11 requirements. 6.8 Installation of the Fire Barrier system to the Test Articles Thermo Lag Fire Barrier System materials shall be installed by TU Electric in accordance with applicable specifications, design drawings and procedures (Ref. 3.1.5,3.1.6 and 3.1.7) such that the test articles are representative of CPSES plant installations-except those test articles intended to qualify upgraded THERMO. LAG installation configurations. Details of the Thermo Lag configurations including fasteners, orientation of structural ribs, etc., shall be documented in the final test report. 6.9 Pretest Inspection 6.9.1 Prior to the commencement of the fire endurance test, a thorough check of each test assembly and associated
8 equipment (including data recording equiprnent) shall be performed and documented by the testing laboratory. 6.9.2 TU Electric shallinspect the Thermo Lag Fire Barrier System for surface defects, etc. prior to test. 6.9.3 Written approval of the construction, assembly, installation and instrumentation will be supplied by TU Electric and the Laboratory prior to performance of each test (a sign off sheet for this purpose will be supplied by the Laboratory). 6.9.4 Ampacity derating testing of assemblies will not commence untti Thermo Lag Fire Barrier Materials attain a moisture meter reading that does not exceed 20% moisture content when using a meter with a scale of 0100 (with 100 being 20% actual moisture content) such as a Delmhorst Model DP or equivalent. 7.0 PROCEDURE 7.1 Ampacity Baseline Tests 7.1.1. The unprotected test articles shall be energized with 60 cycle AC voltage as specified in IEEE P848/D11 and the baseline current ampacity determined as that which results in a thermal equilibration at 90*C at the hottest location at the center of the-test article. 7.1.2 The conditions specified in IEEE P848/D11 for ambient temperature and current / temperature equilibrium will be adhered to. 7.2 Ampacity Derating Tests 7.2.1 The protected test articles shall be energized with 60 cycle AC voltage as specified in IEEE P848/D11 and the baseline current ampacity determined as that which results in a thermal equilibration at 90'C at the hottest location at the center of the test article. 7.2.2 The conditions specified in IEEE P848/D1'1 for ambient temperature and current / temperature equilibrium will be adhered to. t
9 8.0 DATA SYSTEMS 8.1 During the ampacity test penod, all thermocouples will be scanned at one minute intervals or less. 8.2 The data acquisition computer will determine the hottest single point at the center of each assembly and, using Proportional, Integral and Derivative (PID) process control computer routines, will output a voltage signal which will update the position of a motor driven variable transformer to drive the system to equilibrium at 90'C. 8.3 The data acquisition computer will concurrently measure the current flow through the assembly, by interfacing with a calibrated current loop circuit. When equilibrium has been reached (in accordance with the P848/D11 Draft standard), the system will be de energized and the test will be complete. 9.0 TEST REPORT 9.1 The Laboratory will submit a report on the results of the test and thermocouple data. 9.2 The Laboratory will assemble the final test report, containing the collected data and required quality control documentation. 9.3 The test report shall be prepared in sufficient detail to summarize the total testing activity. The report shallinclude as a minimum: a) Date of the test b) Location of the test c) Description of the test equipment and test articles d) Calibration documentation of all therrnocouples e) Qualification and certification for test personnel f) Test procedures used g) Ampacity values determined and accompanying equilibration temperatures. h) Provide quality control records for: Test article construction Qualification and certification for ~ installation -and inspection personnel IdentiScation and installation of fire barrier
- material
- Thermocouple locations Cables, size, ty>e, and location Actual tray anc, conduit fill densities
10 i) Computer printout and graphic results of the ampacity test j) All raw data k) 35mm and VHS video photographic coverage of the test project 1) Provide a chronological log (Event Log) of.all activities from receipt of materials through Anal test report. 7 =-}}