ML20199E151
| ML20199E151 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 09/05/1985 |
| From: | London D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20199D912 | List:
|
| References | |
| FOIA-86-36 NUDOCS 8606230205 | |
| Download: ML20199E151 (9) | |
Text
{{#Wiki_filter:' ... ~. ~. 3.. _.._. l CPSES PREREQUISITE TEST INSTRUCTION XCP-EE-8 1 -l ] CONTROL CIRCUIT FUNCTIONAL TESTING f 4 Revision: 9 O l Prepared By: D. Arthur London ""'P 4 9 =O IE
- i j
Reviewed By: Reviewed By: /// en. ( Artup/ Turnover Surveillance Lead ]
- i. ';
l; Reviewed By:
Title:
Reviewed By:
Title:
1 // F Date: 06.0. 8./988 Approved By: CEb/. ' Manager, CPSES Startup ] f 9606230205 060609 SAP-7-1 PDR FOIA GARDE 86-36 PDR g,gjf NAt v
..c m
.m...
- m..
s..
u .~.. ~ 1 XCP-EE-8 R:vicicn 9 Page 2 of 9 l Control Circuit Functional Testing i I 1.0 PURPOSE l The purpose of this instruction is to describe requirements and methods i for consistent performance of control circuit testing and to provide c. i means of dccumenting that testing, including applicable design change. 2.0 ACCEPTANCE CRITERIA Each control circuit shall be installed and shall operate in accordan: with the applicable schematic / elementary drawings which reflect circu configuration at the time of the test. L
3.0 REFERENCES
3.1 CP-SAP-3 Custody Transfer of Station Components 3.2 CP-SAP-4 Custody Transfer Tagging 3.3 CP-SAP-6 Control of Work on Station Components After Release Fr Construction to TUGC0 3.4 CP-SAP-ll Review Approval and Retention of Test Results 3.5 CP-SAP-13 Temporary System Modifications 1 3.6 XCP-EE-1 Megger/Hi Pot Testing 3.7 XCP-EE-14 Molded Case Circuit Breaker and Thermal Overload Relay / Heater Testing + 3.8 XCP-EE-20 Continuity and Termination Verification 4.0 PREREQUISITES 4.1 The components of the control circuit to be tested shall have bei released to Startup custody in accordance with CP-SAP-3 and custi l tagged in accordance with CP-SAP-4. i 4.2 The latest revisions of the schematics, elementaries or vendor .i drawings for the control circuit to be tested shall be stamped vi ] the " Test Record Drawing" stamp as shown by Figure 1. Notes (1) When the latest revision of a drawing does not reflect the actual status of a control cir-cuit due to unimplemented design ~ changes in the field, it is permissible to test the control circuit to a superseded revision that reflects actual circuit con-figuration. When this is done, the responsible STE shall make an entry on the Master Data Base ~. -.
,. m.... :_ m.w .ca....._,-.. ...;.s.. .~.~ _..a. _._ a .c XCP-EE-8 R;vicion 9 Page 3 of 9 ] stating that the design change g i has not been implemented. The m j Master Data Base entry shall j reference specific design change documents, print revision, af-e facted equipment, location, etc. j (2) Drawings stamped "For Office and Engineering Use Only" may be used. 4 i 4.3 The responsible STE shall ensure that all design changes outstand against the schematics, elementaries or vendor drawings are lists on the drawings. Design changes shall be used during testing as follows: 4.3.1 The design changes affecting the control circuit may be ~ drawn on the affected drawing utilizing RED for additions GREEN for deletions, or Z 4.3.2 The design change may be highlighted during testing and attached to the Test Record Drawing. 4.4 Prior to performing energized control circuit functional testing the responsible STE shall verify the following: 4.4.1 Molded case circuit breakers associated with the control 1 I circuit have been tested in accordance with XCP-EE-14. 4.4.2 6.9KV and 480V air circuit breakers have been tested. -i 4.4.3 d le control and protective relays have been b 4.4.4 Metering and protective relaying current and potential transformers have been ratioed and polarity checked. 4.4.5 Meters have been calibrated. O 4.5 The cables associated with the schematic / elementary for the ciret to be tested have had continuity / termination verification comple:. in accordance with XCP-EE-20. l 4.6 Deenergized point to point verification of vendor internal wirin; I has been completed in accordance with XCP-EE-20, if deemed necest by the responsible STE. If point to point verification is not j performed, an inJpection shall be performed to identify; damage (. s missing components, loose termination screws, unterminated wiring, i -. or excessive dirt and debris. Remove debris and carsfully clean internals if necessa'ry. Replacement / installation of damaged -i s s in., Class 1E equipment shall be controlled in accordance with CP-SA2-6. -m ,p....~~_. -.-mm-g,.g .j l
...u..:.a. L_:x=-. - ~ -..a~.. .. -. ~. - - - - -. -.. - ~. f f ),. XCP-EE-8 l R vicicn 9 Page 4 of 9 I 5.0 TEST EQUIPMENT t 5.1 Fluke Model 8020 Digital Multimeter or equivalent 5.2 Simpson Model 260 Analog Multimeter or equivalent 5.3 Torque screwdriver or wrench ) 5.4 Six or nine volt DC battery i 5.5 Clip-on test leads 5.6 6.9KV and 480V air circuit breaker cell and auxiliary switch test linkages t l 6.0 SPECIAL PRECAUTIONS 6.1 The use of jumpers should be minimized. Contacts, switches and relays should be actuated when possible. Note Jumpers that are left unat-tended or will remain in place beyond the end of shift, shall be identified and logged as i Temporary Modifications in p i accordance with CP-SAP-13. 6.2 Determinate conductors and/or block contacts if required to prec d i undesirable actuation of other controls or to isolate common cir paths. If this is necessary, the conductors shall be promptly j reterminated and/or contacts unblocked when testing is completed that portion of the circuit. Note Lifted conductors / blocked contacts left unattended or 'j that will remain beyond the ) end of shif t shall be iden- { tified and logged as Tem-porary Modifications in accordance with CP-SAP-13. j ] 6.3 Use caution not to overtorque the terminal screws on Westinghout ' *k. l Auxiliary Relays as this can deform the stationary contact assembc/ p If determination or change of contact configuration /termina". viri:.; f is required, the terminal screws shall be torqued to 9.520.5 nch - Lil pounds per memo TBX-M-513 dated August 11, 1980. J G. --4*ee-WMep g .s*,P ym .w.MwF N _
i.L s ._. _._.... m. XCP-EE-8 R vicien 9 Page 6 of 9 7.5 Perform a systematic deenergized functional check of the circuit lb logic. This check should start at the load side of the control power supply and proceed through all circuit branches to power l supply return, proving: schematic terminal points; control switch logic; auxiliary relay coil continuity, contact operation and i configuration; continuity through indicating lights and dropping } resistors; solenoid continuity; unrestricted movement of accessible electro-mechanical components; and polarity of circuit and i components with respect to the source. The responsible STE shoud highlight terminal point identification numbers and/or device ? identifiers on the applicable drawing as an aid during direction. the deenergized test. Notes (1) Work associated with correct-ing discrepancies requiring the addition of Q materials -{ shall be controlled in accord-ance with CP-SAP-6. (2) Observe special precaution 6.2 to isolate circuit paths. An alternative method of branch isolation is to remove indicat-ing lamps or accessible drop-ping resistors. If indicating lamps or dropping resistors are removed they shall be promptly reinstalled upon completion of (3) il oittinuity and contact logic of 6.9KV and 480V air circuit breakers is demonstrated during [ the performance of breaker testing 5 and need not be verified during the performance of deenergized func-tional testing. .Z j (4) Do not verify internal wiring and mechanical freedom of protective j relays since unnecessary handling { could lead to inadvertent irrep-j arable damage. Proper operation p of protective relays is demon-strated during performance of O relay calibration. 14:n v t 6 i t'I i. I __._--.,n_...
g- ~ XCP-EE-8
- ^*
Rsvici:n 9 Page 5 of 9 i 6.4 Notify the shift supervisor or reactor operator in advance of ld { energized functional testing of control circuits for assistance in ( control switch manipulations and observation of indication status. u 6.5 Establish communications as required between appropriate control, ld indication and component locations to ensure proper circuit interaction during energized testing. 6.6 Rotating equipment or other components such as air operated valve-h should be disabled during initial energized functional control circuit testing. Equipment can be disabled by; removing thermal overloads, placing air circuit breakers in the test position, I determinating power feeds, or isolating motive air. Notes (1) When thermal overloads are removed ensure the overload retaining screws are tight-ened when the heaters are i ( replaced. (2) Ensure lifted power leads are insulated or isolated from breaker or starter terminals to preclude inadvertent power feed energization. (3) Ensure an Inspection Removal Notice (IRN) is prepared when i I Class 1E conductors are lifted that require torquing, i.e., l bolted bus connections of Class 1E power cables. 7.0 INSTRUCTIONS 7.1 Verify applicable prerequisites of Section 4.0 are complete. 7.2 Verify the circuit to be tested is deenergized. 0 7.3 Check size and ratings of circuit components such as fuses, relaj [,, starters, solenoids, switches, control transformers, etc., to be agreement with applicable drawings. 7.4 When possible, visually examine relay contacts to ensure proper t configuration in the deenergized condition. ..m.,.~.,c,-.. ,..-e,._,.,, r -, -, ew.-.
( a :- . _ u.. .2 ..x ~...... ~ XCP-EE-8 R;vicien 9 Pcg3 7 cf 9 (5) Deanergized testing of very simple circuits may be waived by the responsible STE. If deenergized testing is waived, the circuit shall as a minimum be checked for j grounds and short circuits prior to energized functional testing per Sections 7.8 through 7.11. j 7.6 Ensure the control circuit is restored to its pre-deenergized test. condition, i.e., jumpers removed, conductors relanded and indicatr. lamps or dropping resistors reinstalled. ] Note q Energized functional testing of control circuits is pre-ferred. However, if this is not possible, deenergized testing will suffice. A note shall be made on the test ] record drawing indicating which portions of the cir-cuit were not energized. 7.7 Observe special precaution 6.6 prior to energizing the control s circuit. For 6.9KV and 480V air circuit breakers, install cell 4 auxiliary switch test linkages and rack the breaker into the Ten position. CAUTION If abnormal mechanical resistance is encountered while racking a breaker in, remove the breaker and investigate the ] i source of interference. Adjust link-l ages if necessary. Do not force the l breaker as damage could occur to linkage support brackets. I ~Z 7.8 Energize the control circuit and ensure appropriate control volta f } is available. 7.9 Perform a complete functional test of the control circuit provin( each circuit path by operating control switches; verifying the l blocking and permissive functions of circuit contacts, flow and l pressure switches; verifying correct indicating lamp functions and/or other device functions. The responsible STE shall highlight the schematic drawing an each branch is completed during dira:tica l s of the energized test. i k 4 ~-
~ -.. = - XCP-EE-8 ) R vicicn 9 Page 8 of 9 Notes (1) Observe special precaution 6.2. ld In the event a contact or de-i vice cannot be actuated, a } jumper or lifted conductor may I be utilized to verify remaining I sections of the circuit. For these cases, the STE shall enter j a note beside the contact or i device on the schematic. The note must be specific with re-gard to terminal block points or device terminals which were t jumpered or at which conductors were lifted. (2) In general, the calibration seals q on protective relays should not [ be broken. If a seal is broken to permit actuation of test push-buttons or contacts, exercise caution to ensure calibration ad-justments are not disturbed. Notify TUGC0 Meter and Relay per-sonnel for immediate replacement b of the seal or recalibration in the event the calibration was inadvertently invalidated. -l 7.10 If applicable, restore the control circuit to its pretest condit by deenergizing and removing test linkages, reinstalling thermal overload heaters, reterminating power feeds, etc. Note Ensure Quality Control per-sonnel are present to witness i torquing activities for Class 1E bolted bus power and West-inghouse Auxiliary Relay con-y ductor terminations. I i 7.11 1. eave the control circuit in a de-energized or energized condici: as deemed appropriate by the STE. 7.12 The STE that perforued the test shall signify satisfactory completion of the test by signature in the space provided on the UL\\ test record drawing stamp. 6 Note Review, approval and reten-tion of test record drawings is described by CP-SAP-11. ,,.o. m.,. _....m y
. _ _,-....~. _ -._ .. -....: :-.....~ ...a.. a.a u XCP-EE-8 Rovicion 9 Page 9 of 9 s i i, i { TEST RECORD DRAWING Systent Number ~ 1 Applicable Preregs. of Section 4.0 Are Comp. NamelDate j Tested By/Date Witnessed By/Date Approved ByfDate z T O i Ig nouRs 1 -1 I z O .Zr4 I a l l 1 _}}