ML051230030
| ML051230030 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 04/22/2005 |
| From: | O'Connor J General Electric Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 26A6493, Rev 3 | |
| Download: ML051230030 (7) | |
Text
ATTACHMENT 5 "Steam Dryer Vibration Instrumentation, "Installation Specification, GE Report 26A6493, Revision 3, dated April 22, 2005
GE Energy 6A6493 SH NO. I of 6 EV 3 DOCUMENT TITLE STEAM DRYER VIBRATION INSTRUMENTATION LEGEND OR DESCRIPTION OF GROUPS TYPE:
INSTALLATION SPECIFICATION FMF:
QUAD CITIES 2 I - DENOTES CHANGE MPL NO:
SAFETY-RELATED CLASSIFICATION CODE N
REVISION lC 0
RMCN05639 MAR 30 2005 I
RMCN05941 APR 04 2005 2
DH CHAN RJA RMCN05993 ENGR: V RAMAN]
APR 22 2005 3
JC LAW RJA RMCN06089 ENGR: JC LAW PRINTS TO MADE BY APPROVALS GENERAL ELECTRIC COMPANY 01/25/05 02/11/05 175 CURTNER AVENUE JF O'CONNOR V RAMANI SAN JOSE CALIFORNIA 95125 CHKD BY:
ISSUED 26A6493 NA RJAHMANN CONT ON SHEET 2 MS WORD (2000)
a' GE Energy
- 1. SCOPE 6A6493 SH NO.2 of 6 EV 3 1.1 This specification provides engineering requirements for the installation and calibration of instrumentation and associated data acquisition system used in the measurement of flow induced vibration of steam dryer components and acoustic pressure measurement during plant operation.
The sensors consist of strain gages, dynamic pressure sensors and accelerometers.
- 2.
APPLICABLE DOCUMENTS, CODES, AND STANDARDS 2.1 The following documents form a part of this specification to the extent referenced herein.
2.2 Applicable Documents:
2.2.1 Following are the supporting documents:
- a.
Dryer Vibration Instrumentation Design Specification, 26A6395
- b.
Vibration Instrumentation Installation Drawing, 234C6821
- c.
Data Acquisition System Specification, 26A6366
- d.
Vibration Instrumentation Wiring Diagram, 105E3902 2.2.2 Supplementary Documents:
- a.
Steam Dryer Vibration Measurement Test Specification, 26A6388
- b.
Data Acquisition System Installation and Test Procedure, 26A6499
- c.
Vibration Instrumentation Installation Procedure, 26A6487
- d.
Steam Dryer Vibration Instrument Installation Procedure, 26A6492
- e.
Reactor Vessel Head Closure Procedure, QCMM-0201-51 2.3 Codes and Standards
- a.
American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (1).Section III, Nuclear Power Plant Components (2).Section IX, Welding and Brazing Qualifications
- b. National Electrical Manufacturer's Association (NEMA) Standards
A' GE Energy
- 3. DESCRIPTION 26A6493 SH NO. 3 of 6 REV3 4.
3.1 Instrumentation installed per this specification will be used in vibration measurements performed during reactor power ascension. Refer to Steam Dryer Vibration Instrumentation Design Specification, Section 2.2.1.a for a more complete description.
REQUIREMENTS 4.1 General 4.1.1 All parts that compromise any portion of the primary pressure vessel shall conform to the requirements of Section III of the ASME Code.
4.1.2 Any electrical component associated with the end-to-end cable system shall meet the requirements of the National Electrical Association (NEMA)
Standards or approved equivalent.
4.1.3 The field calibration of the vibration instrumentation shall be per the Data Acquisition System Installation and Test Procedure, Section 2.2.2.b.
Equipment used for this calibration (sensors excepted) shall be in current calibration.
4.1.4 All welding performed on vessel internals, appurtenances, or the pressure vessel, shall meet the requirements of Section III and Section IX of the ASME Code.
4.1.5 Copies of all QA procedural data shall be retained in the project records.
4.2 Data Acquisition Room 4.2.1 The data acquisition area shall be located within a 100-ft cable run to the drywell penetration.
4.2.2 The structure shall be fabricated or coated with inorganic material that shall render it fire retardant.
4.2.3 Benches and shelves internal to the structure shall be capable of withstanding pressure loads up to 50 lb/ft2.
4.3 GE Energy 26A6493 SH NO. 4 of 6 REV3 4.2.4 The overhead structure interior lighting shall be sufficient to perform electrical equipment repair and calibration without additional localized lighting.
4.2.5 An isolation transformer shall be provided to supply 120 VAC single phase, 60 Hz power of sufficient capacity (3.0 kVA) to operate the associated electronic equipment.
4.2.6 An independent signal ground shall be provided.
4.2.7 An air conditioning system shall be provided of sufficient capacity to maintain a constant temperature of 70-780 F within the structure.
4.2.8 A telephone/intercom communication system shall be provided to establish contact with off-site, on-site and control room facilities.
4.2.9 Junction boxes, signal conditioning cabinets and associated data acquisition devices (supplied by GE) shall be placed internal to the structure.
Drvwell / Containment Building Wiring 4.3.1 Charge Converter boxes (3) (supplied by GE) shall be located and suitably secured inside the drywell within 8 meters of the man-way. The maximum temperature at the charge converter box location shall not exceed 240 degrees F though a cooler location is preferred.
4.3.2 Cables shall be properly supported and protected when routed in the drywell to the penetration.
Conduit (supplied by others) of sufficient magnitude shall be installed between the drywell penetration and the instrumentation room. Conduit shall be no less than 2 inches in diameter and be routed so there is a minimum clearance of 12 inches near un-insulated hot pipes and 3 inches from any insulated pipes. Runs should be as short as possible and slope downward at a minimum rate of % inch per foot. Avoid routing sensor cables along with power cables as much as possible to reduce electrical noise pickup.
4.3.3 High temperature (500° F) (supplied by others), twisted, shielded two pair cable shall be used between the charge converter boxes and the drywell internal penetration.
4.3.4 The conductors for the drywell penetration shall be twisted, shielded pairs, or shielded single conductors.
Minimum wire gauge shall be
4.4 4.5 GE Energy 26A6493 SH NO. 5 of 6 REV 3 22AWG.
No power circuits or switching circuits may exist in the same penetration.
4.3.5 The cables shall be routed into the conduit and cable trays from the drywell penetration to the instrumentation room.
4.3.6 The cables shall be sufficiently spliced into the external drywell penetration and terminated internal to the junction boxes in the data acquisition room. The cables shall have identification tags on either end.
4.3.7 The cable system shall be checked from end to end to ensure electrical continuity. The resistance of each cable run shall be recorded in the proper data format, Section 2.2.2.a, and retained in the project records.
Signal Conditioning Equipment (Supplied by GE) 4.4.1 The signal conditioning and recording equipment shall be appropriately installed in the data acquisition room, Section 2.2.2.b.
Sensor Installation and Vessel Head Closure 4.5.1 All weld sizes shall be controlled to the tolerances given on the Instrumentation Installation Drawing, Section 2.2.1.b.
4.5.2 The sensors shall be electrically connected to the signal conditioning and recording equipment.
Correct interconnection shall be checked and verified, Section 2.2.2.b.
4.5.3 The required conduit clamps and pads shall be installed on the steam dryer, Section 2.2.2.c.
4.5.4 All sensor strings shall be routed and secured to the dryer using the required hardware detailed on the Instrumentation Installation Drawing, Section 2.2.1.b.
4.5.5 A minimum bend radius of four inches on the conduit, two inches on the Ml cable for the accelerometers and pressure sensors, and one inch on the Ml cable for the strain gauges shall be maintained, Section 2.2.2.c.
4.5.6 The mast shall be installed on top of the steam dryer temporarily for sensor installation and conduit routing at the fabrication shop, and permanently prior to dryer installation at Quad Cities. All hardware shall be tack welded where required, Section 2.2.2.d.
GE Energy 26A6493 SH NO. 6 of 6 REV 3 4.5.7 The required clips shall be installed on the steam dryer, Section 2.2.2.c.
4.5.8 All sensors shall be photographed after installation and the photographs retained in the project records.
4.5.9 Any dimension that deviates from the installation drawing shall be recorded by FDDR as "as built" and documented in the e-DRF.
4.5.10 The vessel head shall be lowered in place and the sensor leads fed through the nozzle N6A, Section 2.2.2.e.
The connector end of the sensors shall never be under water at any time and shall be protected against moisture.
4.5.11 The head shall be tensioned and the head insulation installed, Section 2.2.2.e.
4.5.12 The instrument flange shall be assembled and mated to the N6A vessel head nozzle, Section 2.2.2.d.
4.5.13 The pressure sensor and accelerometer hard line cables shall be connected to the low noise high temperature cables from the charge converter boxes. The hard line cable from the dryer strain gages shall be connected to the high temperature cable in the drywell. The sensor cable connectors shall be secured and supported as required to available support systems, Section 2.2.2.b.