ML19256G566
| ML19256G566 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 12/06/1979 |
| From: | Trohkimoinen G ENERGY, INC. |
| To: | |
| Shared Package | |
| ML19256G557 | List: |
| References | |
| CPR-001, CPR-1, NUDOCS 7912310465 | |
| Download: ML19256G566 (28) | |
Text
1-C0t<TRG1D CD?Y ENERGY INCORPORATED p
DESCRIPTION CONSTRUCTION SPECIFICATIONS FOR INSIDE CONTAINMENT PORTION OF STEAM DRLM SAFETY RELIEF VALVE POSITION INDICATION SYSTEM AT BIG ROCK POINT NUCLEAR PLANT.
M M -2 DATE PREPARED BY G. R. Trohkimoinen
/z/4/'t 13090-000 CONTRACT NO.
W.
. Green p. u, 4 ftJ/7p REVIEWED BY RELEASE DATE
$ N 'NW QUALITY ASSURANCE W. H. Shamel 12 le-1 9 PREPARED FOR Consumers M' ' ' ~ ~
Power Comoany - Bio Rock f z/#MP Point Plant a o s PROJECT MANAGER G.W.0.
6971 REVISIONS 1661 102 REVISION NO.
C-SPEC NO.
cpR_001 0
JQB CODE - S/N PAGE 1 OF _Z3 73 1 7912310 (
TABLE OF CONTENTS PAGE 1.0 PURP0SE............................................................
7 2.0 CONDUIT, JUNCTION BOXES AN D PA N E LS................................ 8 2.1 Reference Drawings............................................ 8 2.2 M a t e r i al L i s t................................................. 8 2.3 Tool List....................................................
10 2.4 Expansion Fastener Instal l ation............................. 10 2.5 C h a rge Am pl i f i e r s............................................ 11 2.5.1 Cha rge Ampl i fi er Panel Co nst ruction................... 11 2.5.2 Cha rge Ampl i fi er Panel Install ation................... 12 2.6 Junction Boxes...............................................
12 2.6.1 Boxes Inside Steam Drum Encl osure..................... 12 2.6.2 Boxes Outside Steam Drum Encl osure.................... 15 2.7 Conduit......................................................
15 2.7.1 Conduit From Transducers to Charge Amplifiers.........15 2.7.2 Conduit From Charge Amplifiers to Containment El ect ric al Penetrati o n Area........................... 17 3.0 CABLE.............................................................
18 3.1 R e fe renc e D r awi ng s........................................... 18 3.2 Material List................................................ 18 3.3 To o l L i s t................................................... 19 3.4 Tran sduc ers to Cha rge Ampl i fi ers............................. 19 3.4.1 Hardline/ Softline Cable Connecting Procedure..........19 3.4.2 Hardl ine/Sof tl ine Cabl e Install ation.................. 21 3.5 Charge Ampl i fiers to El ectrical Penetrations................. 23 1661 103 REVISION NO.
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TABLE OF CONTENTS (continued)
PAGE 4.0 TRANSD UCER M0 UNTIN G................................. -
25 4.1 R efe renc e Drawi ngs........................................... 25 4.2 Materia)
L1st.......................
'25 4.3 Tool List........................
'25 4.4 Transducer Mounting Adapter..................................
27 4.5 Transduc er In stal l atio n...................................... 27 4.6 Cable Connection...............................
28 1661 104 REVISION NO.
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LIST OF FIGURES FIGURE TITLE PAGE 2-1 Junction Box JB-ZZZ..........................................
12 2-2 J u n c t i o n B ox J B -X XX.......................................... 14 2-3 J u nc t i o n B o x J B -Y Y Y.......................................... 15 4-1 Transduc er Mounti ng Ada pt er.................................. 26 1661 105 REVISION NO.
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LIST OF TABLES TABLES TITLE PAGE 3-1 HARDLINE/ SOFTLINE CABLE RES ISTANC E........................... 20 3-2 COAXIAL CABLE DES IGNATIONS................................... 22 3-3 TSP CABLE DESIGNATIONS.......................................
23 1661 106 REVISION NO.
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DRAWING LIST The following drawings are included as part of this construction specification:
9007 Rev. 0 El ectrical Instrument and Power Plans Personnel Lock and Penetration Area 9121 Rev. O P&ID Nuclear Steam Supply System 9163 Rev. 0 Electrical Raceway Schedule, Sheets 1 through 3 9167 Rev. O Electrical Circuit Schedule, Sheets 1 through 2 9425 Rev. O Steam Drum SRV Position Indication System Installation Details 9426 Rev. O Charge Ampl.ifier Junction Box Detail Steam Drum SRV Position Indication System 9430 Rev. O Schematic Wiring Diagram Steam Drum SRV Position Indication System 1661 107 REVISION NO.
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CONSTRUCTION SPECIFICATIONS FOR INSIDE C0tlTAINMENT PORTION OF STEAM DRUM SAFETY RELIEF VALVE POSITION INDICATION SYSTEM AT BIG ROCK POINT NUCLEAd PLANT 1.0 PURPOSE This construction specification lists installation procedures and
~
precautions for the inside containment portion of the valve position indication system to be installed on the six safety relief valves. on the steam drum at the Big Rock Point Nuclear Plant.
The presently-installed valves to be monitored are RV-5000, RV-5001, RV-5002, RV-5003, RV-5045, and RV-5046.
Refer to Drawing 9121, P&ID Nuclear Steam Supply System for schematic representation of the SRV Position Indication System.
1661 108 REVISION NO.
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2.0 CONDUIT, JUNCTION BOXES, AND PANELS 2.1 Reference Drawings Drawing No Titl e 9007 Rev. 0 Electrical Instrument and Power Plans Personnel Lock and Penetration Area 9163 Rev. 0 Electrical Raceway Schedule, Sheets 1 through 3 9425 Rev. O Steam Drum SRV Position Indication 9426 Rev. O Charge Ampiifier Junction Box Detail Steam Drum SRV Position Indication 2.2 Material List The following materials will be required to ccrnplete the installation of valve position indicating system components within the containment.
Big Rock Point Plant-approved equal s may be substituted if the materials specified are not available.
Quantity Descriotion 6
Charge Amplifier, B&W Part No. LPVMS IC 229 6
Hole Seal, Hoffman A-5075SS, if required 1
Junction Box 10"x8"x4", Hoffman A-1008LP 2
Wiring Trough (Junction Box), 4"x4"x30", Hoffman F-4430 30 ft.
Unistrut P-1000 chennel,1-5/8" x 1-5/8" 120 ft.
Conduit, 3/4" rigid galvanized steel 40 ft.
Conduit,1-1/4" rigid galvanized steel 100 ft.
Conduit, 2" rigid galvanized steel 24 Bushing, galvanized steel, for 3/4" conduit 2
Bushing, galvanized steel, for 1-1/4" conduit 4
Bushing, galvanized steel, for 2" conduit jggj j
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36 Locknut, galvanized steel, for 3/4" conduit 4
Locknut, galvanized steel, for 1-1/4" conduit 6
Locknut, galvanized steel, for 2" conduit 6
Clamp, right angle 3/4" conduit support 7
Pipe Clamp, galvanized steel, for 2" conduit, Unistrut P-2917 10 Pipe Clamp, galvanized steel, for 3/4" conduit, Uni::trut P-2912 3
1-hole conduit clamp,1-1/4" conduit, malleabie, galvanized finish, with backing plate 6
"C" Condulet, 3/4", galvanized cast iron, with cover 1
"C" Condulet, 2", galvanized cast iron, with cover 6
Coupling, 3/4" conduit., galvanized steel 4
Coupling, 2" conduit, galvanized steel 35 Anchor Bolt,1/4 x 2-1/4, Phillips Redhead No. WW-1422 5
Anchor Bolt, 3/8x2-1/4, Phillips Redhead No. WW-3822 36 Machine Screw,1/4-20 x 3/4, with nut and split lockwasher 1
Galvaaized Steel Sheet, 36" x 34" x 10 ga.
40 ft.
Carbon Steel Channel, 3" x 4.1 lb./ft.
8 Stud Nut, Unistrut P2380-6 3/8 x 2-1/8, ' ith nut and split lockwasher 8
Spacer,1-3/4" sq. x 1" thick, with 7/16" hole drilled through center.
8 Bevel Washer, 3/8-inch 6
Hanger, 3/4" conduit, Minerallac size 1 6 ft Threaded rod,1/4-20 12 Washer,1-1/2" sq. x 1/4" thick, with 3/8" hole drilled through center 24 Nut, 1/4-20 x 1 2
Unistrut P1036 Flat Plate Fitting 6
Unistrut P1003 Spring Nut, 3/8-16 6
Hex Head Cap Screw, 3/8-16 x 3/4 with flat washer and split lockwasher 1661 110 REVIS10h NO.
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9 PAGE 0F d _
JOB CODE-S/N ItN.Y,Iods' 73-1
2.3 Tool List The following tools, as a minimum, will be requi red to complete the installation of valve position indicating hardware within the contaiment.
Drill Motor Masonry Drill,1/4", 3/8" Carbon Steel Drill, 5/16", 7/16" Tape Measure Level Hammer 3/4" Conduit Knockout Punch 1-1/4" Conduit Knockout Punch 2" Conduit Knockout Punch 12" Adjustable Wrench Socket Wrench Set Flat Blade Screw Driver 10" Slip Joint Pliers Hacksaw 3/4" Rigid Conduit Bender 1-1/4" Rigid Conduit Bender 2" Rigid Conduit Bender 3/4" Rigid Conduit Thruder 1-1/4" Rigid Conduit Threader 2" Rigid Conduit Threader 2.4 Exoansion Fastener Installation The expansion fasteners approved for use at Big Rock Point Nuclear Plant are wedge-type non-bottom bearing expansion anchors.
The hole reouired for the anchor is the same diameter as the anchor, and is to be drilled 1/2 inch deeper than the length of the anchor. Remove excess concrete dust from the hole as much as is practical, either by15p8ited111 r
REVISION No.
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$$.5,foN 73-1
insertion and withdrawal of the rotating drill, or by blowing air into the base of the hole through a small tube.
To install the anchor, back sff the nut until the tapered end of the bolt just protrudes above the nut.
Set the device to be fastened over the hole drilled for the fastener, and start the anchor into the hole.
Drive the anchor in with a hammer until the nut and washer bottom against the device being fastened.
Tighten the nut with a wrench to set the anchor and secure the fastened device.
Nomally this requires 3 to 5 turns.
Holes for this type of anchor may be drilled through holes in the device being fastened when the device is in place, if desired.
2.5 Charge Amolifiers 2.5.1 Charce Amolifier Panel Cnnstruction Fabricate a free-standing panel on which to mount the charge amplifiers.
Details for this panel are given on Drawing 9425.
Punch a hole for a 3/4-inch conduit in the bottom end of each of the six charge amplifier enclosures.
See Drawing 9426 for the location of this hole.
(The enclosures may have been pre-punched for a smaller size conduit.
If so, it will be necessary to use a hole seal to close the opening at the top of the box and re-punch the opening at the bottom). Use caution to avoid damaging the charge amplifier when punching the hole.
If necessary, remove the subpanel to get enough clearance for the hole punch.
Install the charge amplifiers on the panel per dimensions and instructions on Drawing 9425.
1661 112 REVISION NO.
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Punch holes for six 3/4-inch conduits, one 1-1/4-inch conduit, and one 2-inch conduit in a Hoffman NEMA 12 4x4x30-inch wiring trough.
This is to be called JB-ZZZ. Details are shown on Figure 2-1.
Install JB-ZZZ on the charge amplifier panel as shown on Drawing 9425.
Install six 3/4-inch conduits between the charge amplifiers and the junction box as shown on the drawing.
Fabricate the panel and install the components on it outside the containment.
2.5.2 Charle Amolifier Panel Installation Remove the subpanel from the supporting stand, and transport the subpanel and stand separately.
The panel subassembly weighs approximately 130 pounds, and the supporting stand weighs almost 160 pounds.
Reassemble and install the charge amplifier panel on top of the steam drum enclosure at the southeast corner as shown on Drawing 9425.
2.6 Junction Boxes 2.6.1 Boxes Inside Steam Drum Enclosure Punch six 3/4-inch conduit holes and one 2-inch conduit hole in a Hoffman NEMA 12 4x4x30-inch wiring trough as shown in Figure 2-2.
This enclosure will be called JB-XXX.
Punch holes prior to entering the containment.
Install JB-XXX on the south wall inside the steam drum enclosure in the location shown on Drawing 9425 using six 1/4-inch diameter expansion fasteners.
1661 113 REVISION NO.
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/-2 Coxouirmeclour JB-EZ3 HOFFMAN F-4430 CHARGEAMPURBPANEL FIGURE 2-1 JutlCTIOri BOX JB-ZZZ
]66}f REVISION NO. c-SPEC NO. CPP.-001 0 JOB CCDE-S/N PAGE.13 op 28 $kh.5,1cN
- ~3 L I i i -C. 4 2 j = .30 - = RU L2*DVDuf7 41/DCZOJT i I, A m sa A _ S M SP S S~ 25' I 25's f _j f % *CONCU/7 KNOCXCUT3 (62 ACE 3) J8 -XXX HOMWAN F-4430 MS/CESIEAN DRUA1 ECOM FIGURE 2-2 JUNCTI0tl BOX JB-XXX 1661 115 REVISION NO. C-SPEC NO. CPR-001 0 JOB CCOE-S/N PAGE S OF 28 $ES."o,1kN
2.6.2 Boxes Outside Steam Drum Enclosure JB-YYY is a Hoffman NEMA 1210x8x4-inch junction box. Punch one 1-1/4 inch conduit hole and one 2-inch conduit hole in the sides of the box as shown on Figure 2-3. Punch holes in JB-YYY prior to entering the containment. Install JB-YYY on the top of tne steam drum enclosure in the location shown on Drawing 9425 using four 1/4-inch diameter expansf or, anchors. 2.7 Conduit All cables inside the containment will be installed in metal conduit. All conduits are to be cut, threaded, bent, and install ed per plant specifications and practices. Identify each conduit at each end with a permanent marker using the raceway numbers from the Raceway Schedule, Drawing 9163. 2.7.1 Conduit From Transducers to Charce Amolifiers Inside the steam drum room, install six individual 3/4-inch rigid conduits from the vicinity of the six transducers to JB-XXX. The open end of each conduit is to be within twelve inches of the val ve to which it goes. Install a single 2-inch rigid conduit from JB-XXX to the 2-inch pipe penetration in the ceiling of the steam drum room near the center of the south wall. These conduits are shown on Drawing 9425. The six 3/4-inch condulets must be positioned as shown on the drawing, since they provide access to cable connections. Clamp the 3/4-inch conduits to Unistrut support channels which are bolted to the catwalk supcorts or to the wall. Details are shown on the drawing. Outside the steam drum room, install a 2-inch conduit from the top of the 2-inch pipe penetration to junction box JB-YYY. Install a 1-1/4-inch 1661 116 REVISION NO. c -SPEC NO. cPR-001 0 JOB CODE-S/N PAGE 5.0F 28 1 n?"o.foM 73-1
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.s-g. y L ll t> 1 ~ f-.- d8-777 NOFFMAN A-/008f.P FIGUR '-3 duriCTICn
- X JB-YYY jggj jj7 REVISION NO.
c-SPEC NO. CPR-001 0 JOB CODE-S/N PAGE _16OF28 GORNi
conduit frcrn JB-YYY to JB-ZZZ on the charge amplifier panel. Details for installing these conduits are shown on Drawing 9425. 2.7.2 Conduit From Charae Amo11fiers to Containment Electrical Penetration Area Install a single 2-inch conduit down the east wall near the southeast corner of the steam drum enclosure. This conduit goes through the grating at floor level (elevation 616'-0) and turns south and proceeds toward the electrical penetration area. Refer to Drawings 9007 and 9425 for routing and details of the installation of this conduit. Field route the conduit in the area of the penetration because of the large number of conduits already in that vicinity. The conduit is to be clamped to Unistrut channel brackets bolted to the outside wall of the steam drum room and to the ceiling in the penetration area. The brackets are to be fastened to the concrete with two 1/4-inch diameter expansion fasteners. The 2-inch conduit c.ust be supported at intervals not exceeding twelve feet. 1661 118 REVISION NO. c -SPEC NO. CPR-001 0 JOB CODE-S/N PAGE3.20F 28 Rh. Fo7ff 73-1
3.0 CABLE 3.1 Reference Drawings Drawing No. Title 9167 Rev. 0 Electrical Circuit Schedule, Sheets 1 through 2 9425 Rev. O Steam Drum SRV Position Indication System 9426 Rev. O Charge Amplifier Junction Box Detail Steam Drum SRV Position Indication System 9430 Rev. O Schematic Wiring diagram - Steam Drum SRV Position Indication System 3.2 Material List The following materials will be required to complete the installation of cable inside the containment. Use materials as specified or substitute Big Rock Point Plant-approved equals. Quantity Descriotion 1 Hardline Cable, 6-foot length, Endevco No. 3075M6 5 Hardline Cable,10-foot length, Endevco No. 3075M6 6 Softline Cable, 40-foot length. Endevco No. 3090B 6 Softline Cable, 33-foot length, Endevco No. 30908 12 Coaxial Cable Connector Endevco EJ34 600 ft. Cable,16 ga. twisted, shielded pair, Dekoron No. 1952-68310 200 ft. 12 ga. galvanized steel wire, solid, uninsulated 18 Ring Terminal, uninsulated, crimp type, #8 screw 24 Safety Tie Wire (if required by plant) Dow-Corning RTV Silicone, Type 96-081 1661 119 REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N pA,g yg_op ,o EEE,fo7# 73-1
18 Butt-Splice Connector for containment electrical penetration (supplied by plant) Scotch 23 Electrical Tape Scotch 33+ Vinyl Plastic Tape 3.3 Tool List The following tools, as a minimum, will be required to install the cables within the containment. Wire Pulling Fish Tape Flat Blade Screw Driver Terminal Crimping Tool Wire Cutter Heating-Type Wire Stripper Connector Plug Crimping Tool Digital Ohm Meter Pliers 8" Adjustable Wrench 3.4 Transducers to Charge Amolifiers The cables to connect the transducers to the charge amplifiers are special low-noise, high-temperature coaxial cables. They have been cut to length, and connectors have been installed by the vendor. Under no circumstances are these cables to be altered during installation. The minimum bending radius for hardline cable is 2 inches and 1 inch for softline cable. Care must be exercised not to damage the cable sheaths. 3.4.1 Hardline/ Softline Cable Connecting Procedure Each transducer will require one hardline cable piece, two softline cable pieces, and tw EJ34 splicing connectors. Assemble each cable with a 33-foot piece of softline cable at one end, a 40-foot piece of softline REVISloN NO. C -SPEC NO. cw_nni O JOB CODE-S/N PAGE.1.9.0 F 90 73 -1 1661 120 N#
cable in the center, and either a 6-foot or 10-foot piece of hardline cable at the other end. Connect the hardline and softline cables together prior to installation in their respective conduits. Screw one end connector of each cable onto the EJ34 splicing connector. Before proceeding with sealing the connection, measure the resistance of the spliced cable with an ohm meter. If the total cable resistance exceeds (0.2 x cable length in feet) ohms, check the connection by disconnecting one cable and testing the resistance from one end through the EJ34 splicing connector. Check the other cable in the same fashion, after disconnecting the tested cable from the connector and reconnecting the remaining one. See Table 3-1 for cable resistances. TABLE 3-1 HARDLINE/ SOFTLINE CABLE RESISTANCE Maximum Hardline Length Softline Length Resistance 10 40 10 ohms 10 40 + 33 16.6 ohms 6 40 9.2 chms 6 40 + 33 15.8 ohms 6 1.2 chms 10 2.0 ohms 40 8.0 ohms 33 6.6 ohms If the resistance of a cable piece and connector is too high, check the cabl e piece al one. If it checks
- properly, substitute another EJ34 connector and recheck.
If any cable or connector fails to check out properly, replace it with a new item from the vendor. When the resistance REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N PAGE 20,op 28 73-1 1661 121
checks are cmpleted, the connection must be sealed. If the plant requires that connectors be secured with safety wire, install it prior to sealing. Sealing is accomplished by first wrapping the connection with Scotch 23 electrical tape and then overwrapping with Scotch 33+ vinyl plastic tape. Apply the Scotch 23 base tape moderate tension, beginning at the splice and 1/2 lapping to a point 2 inches back on the cable. Take one full lap turn, and then 1/2 lap back across the splice to a point 2 inches on the other side of the splice. Full lap one turn, then 1/2 lap back to the splice. The last wrap should be full lap applied at zero tension. Cut the tape and proceed. Begin wrapping the Scotch 33+ vinyl plastic cover tape where the base tape ended. Using moderate tension,1/2 lap to a point 1 inch past the base tape and take one turn with full lap. 1/2 lap back across the splice to a point 1 inch past the end of the base tape. Take one turn with full lap, and then 1/2 lap back to the splice. Continue 1/2 lapping 2 inches past the splice, and then full lap one turn at zero tension and cut the tape. This sealing procedure is in accordance with CPCo Procedure ilumber MMBE-3 Rev. 3. The same checkout and sealing procedures apply for softline to softline cable connections. 3.4.2 Hardline/ Softline Cable Installation _ Be sure to cmplete resistance checks and sealing per 3.4.1 before installing the cables. The following table lists the valves cable identifications, and lengths. 1661 122 REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N PAGE 1 0F 28 E3,fo7#
TABLE 3-2 C0 AXIAL CABLE DESIGNATIONS ~ From To Hardline Softline Cable No. Charoe Amo. Valve u, '* h Lengths Z02-ZO3/1 CA-5000 RV-5000 lu 40 + 33 ft. ZO2-ZO3/2 CA-5001 RV-5001 10 ft. 40 + 33 ft. ZO2-ZO3/3 CA-5002 RV-5002 10 ft. 40 + 33 ft. Z02-ZO3/4 CA-L303 RV-5003 10 ft. 40 + 33 ft. ZO2-Z03/5 CA-5045 RV-5045 6 ft. 40 + 33 ft. ZO2-ZO3/6 CA-5046 RV-5046 10 ft. 40 + 33 ft. Pull the cables into their respective conduits using a fish tape. Inside the steam drum room, feed the softline end of the cable in from the valve end of the conduit and pui' from JB-XXX. Pull the cable into the conduit until the connection of the hardline and softline cables is in the 3/4-inch "C" condulet and the hardline cable extends out the end of the conduit near the valve. See Drawing 9425 for details. In JB-XXX, the cables merge into the 2-inch conduit. Pull the cables into the conduit to JB-YYY outside the steam drum roan. The second connection in each cable should be positioned in JB-YYY. Excess softline cable should be coiled inside the junction boxes JB-XXX and JB-YYY. Pull in a steel wire along with the cables for future wire pulling use. Pull the cables through the 1-1/4-inch conduit from JB-XXX to JB-ZZZ on the charge amplifer panel. The cables fan out in JB-ZZZ and go to the charge amplifiers. Install a steel pull wire in this 1-1/4 inch conduit as well. At the transducer, loop the hardline cable in a 4-to 6-inch diameter coil and set out of the way. It will be connected later (see Section 4.6). REVISION NO. C -SPEC NO. CPR-001 JOB CODE-S/N PAGE 22,,op 28 73-1 1661 123 MAR
Identify each cable with a permanent marker at each e d in accordance with pl ant practice. Refer to Table 3-2 or Drawing 9167, Circuit Schedule for cable numbering. 3.5 Charae Amolifiers to Electrical Penetrations Install six twi'sted shielded-pair (TSP) instrument cables in the 2-inch conduit from the charge amplifier panel to the containment el ectrical penetration area. Pull in a steel wire with the cables f: future use as a e pull wire. Table 3-3 lists cables, origin, destination, and notes on routing. TABLE 3-3 TSP CABLE DESIGNATIONS From To Cable No. Charce Amo Canister Route Z01-ZO2/1 CA-5000 H75 Conduit B850 to Tray WD03 Z01-ZO2/2 CA-5001 H75 Conduit B850 to Tray WD03 Z01-ZO2/3 CA-5002 H75 Conduit B850 to Tray WD03 Z01-ZO2/4 CA-5003 H75 Conduit 8850 to Tray WD03 Z01-Z02/5 CA-5045 H69 Conduit B850 to Tray WC01 Z01-Z02/6 CA-5046 H82 Conduit B850 to Tray WE02 Ring out the cables one at a time by twisting the black and white conduc-tors together at one end and testing continuity at the other end. Then apply permanent identifyi ng markers to both ends of each cable in accordance with plant practice. Refer to Table 3-3 or Drawing 9167, Circuit Schedule for the cable numbers. 1661 124 REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N PAGE.3 0F 28 2 73-1
After rou':ing the cables from JB-ZZZ to the proper charge ampl ifiers, teminate the wires on the terminal strip in each charge amplifier box as shown on Drawing 9426. Use uninsulated ring terminals installed with an approved crimping tool on each conductor and shield drain wire. At the penetration end, make connections with AMP, Inc. in-line WP splicing sleeves or plant-approved equal butt-splicing devices. Apply splices with an approved crimping tool only. Refer to Drawing 9430 for the penetration wiring scheme. Seal the conduits between the charge amplifiers and JB-ZZZ with Dow-Corning RTV Silicone at the charge amplifier ends. Completely seal the cable exit hole in the change amplifier junction boxes so that steam and/or water from the conduit and the containment cannot enter the junction box. 1661 125 REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N PAGEli.0F 28 %0.%5a7#
L 4.0 TRANSDUCER MOUNTING 4.1 Reference Drawings Drawino No. Title 9425 Rev. O Steam Drum SRV Position Indication System Installation Details 4.2 Material List The followinj materials are required to install the transducers on six pressure relief valves. Use materials as specified or substitute Big Rock Point P1 ant-approved equals. Quantity Description 6 Transducer Mounting Adapter (fabrication n equired per Figure 4-1) 6 Accelerometer, Endevco Model 2273AM20 6 Mounting stud, Endevco Model 2981-3 Pipe thread sealant Pyrogel (or equal acoustical coupling compound) Paint, plant-approved aerosol corrosion-inhibiting type 4.3 Tool List The following tools, as a minimum, are required to install accelerometers on the pressure relief valves: 12-inch Adjustable Wrench 1-inch Hex Wrer.ch Fic Blade Screw Driver Torque Wrench, 25 inch-lb range, 3/8-inch square drive 66l 126 REVISION NO. c -SPEC NO. cPR-001 0 JOB CCDE-S/N PAGE.2.,j_op 28 Enfo7# 73-1
DRILL t TAP FOR *.0-32tesF.23 i '/o CR V AC7/VE MEAD CEWd. I a O MO NEX /0/8 CCfD DRAWN STEEL i so : 0:e '\\ T ~' ., p, ~ ' L L <q .33 f i i L I'SA { .78 .04 A l M/N l t n r Y f V2 *-/4 NP7~ . I l -y-C/A NOTES: CPCs 9/G ROCXPJMT P AN7" /. REAt;iVEALL filRRS tSiVARPEDCB. S TEA M D M il S M 2 70LERANCLT 2.01 A1S/77CAf iNDKAT/NG SYSTEM /WANSDLCf.AMCONTMGADAPTER P00R BRIBlWL FIGURE 4-1 TRAtlSDUCER MOU!iTI!!G ADAPTER 1661 127 REVISION NO. c-SPEC NO. CPR-001 0 JOS CCDE-S/N PAGE.2,g,op 28 $N.5,foN
5/8-inch hex socket, 3/8-inch square drive, Delrin material, Endevco No. 2940 (to be supplied by B&W) 4.4 Transducer Mountina Adapter CAUTION: This task may result in very small amounts of contaminated water being released from the drain ports of the relief valves. Handle per plant procedures. Remove the 1/2-inch NPT drain plug on the south side of the body of one of the relief valves. Apply approved thread sealant to the pipe threads on a transducer mounting adapter (see Figure 4-1) and install it in the drain hole of the valve. Tighten the adapter with a 1-ir.ch hex wrench to assure a water-tight seal. lirawing 9425 shows the installation of the adapter in one of the valves. Repeat the procedure for the other five valves. 4.5 Transducer Installation Do not install the transducer until authorized by the CPCo cognizant engineer. Do not install the transducer until the mounting adapter is in place on the valve. Screw the mounting stud, Endevco No. 29S1-3, into the #10-32 hole in the adapter. Tighten with a screw driver. Apply the Pryogel acoustical coupling compound to the base of the transducer, and twist the transducer onto the stud by hand. Tighten the transducer with a Delrin socket and torque wrench to a torque of 18 inch-pounds. Mask the transducer, and paint the transducer mounting adapter. REVISION NO. C -SPEC NO. CPR-001 0 JOB CODE-S/N PAGE E OF 28 73-1 }bb} }28
Repeat the procedure for each of the remaining five valves. 4.6 Cable Connection Loop the excess hardline cable in a 4-to-6-inch diameter loop beneath the grating, and connect the cable to the transducer. Refer to Drawing 9425 for details of a typical installation. Be careful to avoid kinking or damaging the cable sheath. Install a safety wire on the connection if required by plant practice. 1661 129 REVISION No. c -SPEC NO. cPR-001 0 JOB CODE-S/N PAGE3E.0F 28 %E"v"o.fo7W 73-1}}