ML20044G784
| ML20044G784 | |
| Person / Time | |
|---|---|
| Site: | 05200001 |
| Issue date: | 06/01/1993 |
| From: | Fox J GENERAL ELECTRIC CO. |
| To: | Poslusny C Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9306040265 | |
| Download: ML20044G784 (13) | |
Text
{{#Wiki_filter:1 m GENuclear Energy GeneralElectrx Compay 175 Curtner Avenue, San Jose, CA 95125 June 1,1993 Docket No. STN 52-001 Chet Poslusny, Senior Project Manager Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal Office of the Nuclear Reactor Regulation
Subject:
Submittal Supporting Accelerated ABWR Review Schedule - Chapter 8 Modifications
Dear Chet:
Enclosed are SSAR markups to Chapter 8 material that resulted from the GE/NRC conference call on May 28,1993. The following items are addressed: Confirmatory Items 8.2.2.6-1, 8.3.4.4-2, 8.3.5-1 ; and COL Item 8.3.4.4-1 Please send copies of this transmittal to John Knox and Dale Thatcher. Sincerely, V h Jack Fox Advanced Reactor Programs cc: Bob Strong (GE) Norman Fletcher (DOE) JIM IN 030042 jo 9306040265 930601 l! l PDR ADOCK 05200001 A PDR
) m) The non-segregated phase bus and power cables from the reserve auxiliary transformer to the input terminals of the non-safety related and safety-related medium voltage (6.9 kV) switchgear, and n) The power cables from the combustion turbine generator to medium voltage (6.9 kV) switchgear, including the disconnect and interconnecting bus. The design scope for the standard plant ends at the low voltage terminals of the main power transformer and the low voltage terminals of the reserve auxiliary transformer. Although the remainder of the offsite power system is not in the scope of the standard plant design, the standard plant design is based on a power system which meets certain design concepts. Design bases (10CFR Parts 2 interface requirements) consistent with these concepts are included in Section 8.2.3. Meeting the stated design bases will ensure that the total power system design is consistent and meets all regulatory requirements. The portions of the offsite power system which fall under the design responsibility of the COL applicant will be unique to each COL application. It is the responsibility of all concerned parties to insure that the total completed design of equipment and systems falling within the scope of this SSAR section be in line with the description and requirements stated in this SSAR. See Section 8.2.4 for a detailed listing and description of the COL license information. 8.2.1.2 Description of Offsite Power System The offsite electrical power system components within the scope of the applicant include items a) through f) identified in Subsection 8.2.1.1. The remaining items g) through n) are within the scope of the A%'R standard plant design. k' hen used for normal operation, each preferred power supply will be sized to supply the maximum expected coincident Class lE and non-Class 1E loads. The normal and alternate preferred power circuits are designed in accordance with industry-recommended practice in order to minimize the likelihood that they will fail while operating under the environmental g conditions (such as, wind, ice, snow, lightning, temperature variations, or i flo_dJ,1gv they are subject. I led isolated phase bus duct rated 36kA is provided for a power feed to the main power transformer and unit auxiliary transformers from the main
- [807.6d or generator.
A generator circuit breaker is provided in the isolated phase bus duct at (off. an intermediate location between the main generator and the main power ) transformer. The generator circuit breaker provided is capable of interrupting a maximum fault current of 275kA symmetrical and 340kA asymmetrical at 5 cycles i after initiation of the fault. This corresponds to the maximum allowable interface fault current specified in Section 8.2.3. The main generator circuit breaker allows the generator to be taken off line and the main grid to be utilized as a power source by backfeeding to the unit auxiliary transformers and their loads, both Class 1E and non-Class 1E. This is also the start up power source for the unit. c:\\ow62\\ch8/ch8 draft.wp march 30, 1993 1
- s d
3 3 MARK-UP TEXT INSERTS-p. INSERT AD (JIPE\\ request to slose tem'8 .2.6-1 er.5-2-93hhnecT1.) _ _u \\ l The normal and alternate offsite preferred power circuits are designed with sufficient capacity and capability to limit variations of the operating voltage of the onsite power distribution system to a range appropriate to ensure 1) normal and safe steady-state operation of all plant loads,
- 2) starting and j
acceleration of the limiting drive system with the remainder of the loads in f
- service, and 3) reliable operation of the control and protection' systems under conditions of degraded voltage [see 8.3.1.1.7(8)}.
Specifically, the unit-auxiliary transformers cnd the reserve auxiliary transformer are designed' to limit the voltage variation of the onsite power distribution system to plus or j minus 10 percent of load rated voltage during all modes of. steady state .) ( operation and a voltage dip of no more than 20 percent during motor starting." / j INSERT AE ('NRC,cqueu cl-osa item 8. 2. LfuLper->-48.-93-phone-vri-1LO w the low-voltage terminals of theAa=ilinj[and reserve avgg /joyy unit Voltage levels at transformers will be analyzed to determine the maximum and minimum load conditions that are expected throughout the anticipated range of voltage variations of the offsite transmission system and the main generator. Separate analyses will be performed for each possible circuit configuration of the offsite power supply system. ~~ a--~~- ~ INSERT AF (NRC-re ques.t-to~'c1osA 1-t em-8 : 2. 2. 6 per' 5 '- 2 8 - 9 3 phone-ca1T)~'~ ~ ~
^'~^%
Performance and operating characteristics of the normal and alternate preferred power circuits are required to meet operability and design-basis requirements, such as 1) the ability to withstand short-circuits, 2) equipment capacity, 3) voltage and frequency transient response, 4) voltage regulation limits, 5) step load capability, 6) coordination of protective relaying, and 7) grounding. Qv 51.s6-l CotJF o a taurs age) f F P + 4
Unit synchronization will normally be through the main generator circuit breaker. A coincidental three-out-of-three logic scheme and synchro-check relays are used to prevent faulty synchronizations. Dual trip coils are provided on the main generator circuit breaker and control power is supplied from redundant load groups of the non-Class lE onsite 125V DC power system. It is a design bases requirement that synchronization be possible through the switching station's circuit breakers (See Section 8.2.3). There are three unit auxiliary transformers. Each transformer has three windings and each transformer feeds one Class 1E bus directly, two non-Class lE buses directly, and one non-Class 1E bus indirectly through a non 10 to non IE bus tie. The medium voltage buses are in a three load group arrangement with three non-Class 1E buses and one Class 1E bus per load group. Each unit auxiliary transformer has an oil / air rating at 65 degrees centigrade of 37.5Mva for the primary winding and 18.75Mva for each secondary winding. The forced air / forced oil (FOA) rating is 62.5 and 31.25/31.25Mva respectively. The normal loading of the six secondary windings of the transformers is balanced with the heaviest loaded winding carrying a load of 17.7Mva The heaviest transformer loading occurs when one of the three unit auxiliary transformers is out of service with the plant operating at full power. Under these conditions the heaviest loaded winding experiences a load of 21.6Mva, which is about two thirds of its forced air / forced oil rating. Disconnect links are provided in the isolated phase bus duct feeding the unit auxiliary transformers so that any single failed transformer may be taken out of service and operation continued on the other two unit auxiliary transformers. One of the buses normally fed by the failed transformer would have to be fed from the reserve auxiliary transformer in order to keep all reactor internal pumps operating so as to attain full power. The reserve auxiliary transformer is sized for this type of service. One, three-winding 37.5MVA reserve auxiliary transformer provides power as an alternate to the " Normal Preferred" power. One of the equally rated secondary windings supplies reserve power to the nine (three through cross-ties) non Class 1E buses and the other winding supplies reserve power to the three Class 1E buses. The combined load of the three Class 1E buses is equal to the ail / air the rating of the transformer winding serving them. This is equal to 60% of the forced air / forced oil rating of the transformer winding. The transformer is truly a reserve transformer because unit startup is accomplished from the normal preferred power, which is backfed over the main power circuit to the unit auxiliary transformers. The reserve auxiliary N transformer serves no startup function. The operational configuratji ns-Tre' w' *, the gDA ratings of the reserve auxiliary transformer, orfany unit such that transformer, will not be exceeded under any operating m$de$ec g/J N )g C liar dc auxiliary %Ormere--and--the--returvF auxiliary' voltage vari-b< ~ a' tf1 drmer ith 'fficient capacity,ind capability to limit the i es power d)sitribution, system to plus or,dinus 10 percent, of loact of e onsit ted volt eduringallmodes'ofsteadfstateoperation4ndavoltagedidqf mp mn 1 - h ecent dur[n: me_te-brting _r l h, 6 ',/ 7 The unit auxiliary transformers are designed and constructed to withstand G8 ' the.aechanical and thermal stresses produced by external short circuits. In &A ,,b $ m) c \\ow62\\ch8/ch8draf t.wp March 30, 1993 (c) Faults of a single main bus are isolated without interrupting service to any circuit. (7) The main power transformer shall be three normally energized single-phase transformers with an additional installed spare. Provisions shall be made to permit connecting and energizing the spare transformer in no more than 12 hours following a failure of one of the normally energized transformers. (8) The main transformers and the reserve auxiliary transformer shall be designed to meet the requirements of ANSI Standard C57.12.00, General Requirements for Liquid-Immersed Distribution, Power and Regulating Transformers. (9) Transformers shall be provided with separate oil collection pits and drains to a safe disposal area, and shall be provided with fire protection deluge systems as specified in Section 9A.4,6. Transformers shall also be provided with lightning protection systems and grounded to the plant .i grounding grid. h (j (10) Circuit breakers and disconnect switches shall be sized and designed in f(Ibi accordance with the latest revision of ANSI Standard C37.06, Preferred i fof.l Ratings and Related Capabilities for AC High-Voltage Circuit Breakers e A circuit bree Wert J A e t/ se purclarec D*9.6.f RatedonaSymmetricalCurlcnt) Bas,is.accoNloce w a f 4 resaIUT* *ns e f MC fnferwkn new cae not tvfvehs w 'r*se*/Pc3 pense 435,54 in Sectuen 20 3 R AT-8 u es :r Although unit synchronization is normally through the main gen)erator (DMk Heirce p C~ ub (See Goes (11) circuit breaker, provisions shall be made to synchronize the unit through the switching station's circuit breakers. This makes it possible to re-synchronize with the system following a load rejection within the steam bypass capability of the generating unit. ? (12) All relay schemes used for protection of the offsite power circuits and of the switching station's equipment shall be redundant and include backup protection features. All breakers shall be equipped with dual trip coils. Each redundant protection circuit which supplies a trip signal shall be connected to a separate trip coil. All equipment and cabling associated with each redundant system shall be physically separated. b (13) The de power needed to operate redundant protection and control equipment of the offsite power system shall be supplied from two separate, dedicated switching station batteries, each with a battery-charger fed from a separate ac bus. Each battery shall be capable of supplying the de power required for normal operation of the switching station's equipment. Each charger shall be capable of supplying the required loads while recharging its battery. (14) Two redundant low voltage ac power supply systems shall be provided to supply ac power to the switching station's auxiliary loads. Each system shall be supplied from separate, independent ac buses. The capacity of each system shall be adequate to meet the ac power requirements for e normal operation of the switching station's equipment. c:\\ow62\\ch8/ch8 draft.wp March 30, 1993 18-s r p
the normal over-current tripping of these load breakers, Class 1E zone selective interlocking is provided between them and the upstream Class 1E bus feed breakers. If fault current flows in the non-Class 1E load, it is sensed by the Class 1E current device for the load breaker and a trip blocking signal is sent to the upstream Class 1E feed breakers. This blocking lasts for about 75 milliseconds. This allows the load breaker to trip in its normal instantaneous tripping time of 35 to 50 milliseconds, if the magnitude of the fault current is high enough. This assures that the fault current has been terminated before the Class 1E upstream breakers are free to trip. For fault currents of lesser magnitude, the blocking delay will time out without either bus feeder or load breakers tripping, but the load breaker will eventually trip and always before the upstream feeder breaker. This order of tripping is assured by the coordination between the breakers provided by long-time pickup, long-time delay and instantaneous pickup trip device characteristics. Tripping of the Class lE feed breaker is normal for faults which occur on the Class 1E bus it feeds. Coordination is provided between the bus main feed breakers and the load ] b ealents. M -b5TKe zone selective interlock is a feature of the trip unit for the breaker .fn-and is tested when the other features such as current setting and long-time p3,Mdelayaretested. cod-Power is supplied to each FMCRD load group from either the Division I Class 1E bus or the non-Class 1E PIP bus through a pair of interlocked transfer switches located between the power sources and the 6.9kV/480v transformer feeding the FMCRD MCC. These transfer switches are classified as Class 1E associated, and are treated as Class 1E. Switch-over to the non-Class 1E PIP bus source is automatic on loss of power from the Class 1E diesel bus source. Switching back to the Class 1E diesel bus power is by manual action only. The design minimizes the probability of a single failure affecting more than one FMCRD group by providing three independent Class 1E feeds (one for 3 of each group) directly from the Division I Class 1E 6.9 kV bus (see sheet Figure 8.3-1). The Class 1E load breakers in conjunction with the zone selective interlocking feature (which is also Class 1E), provide the needed isolation between the Class 1E bus and the non-Class 1E loads. The_ f_e.eder. circuits on ~ ~> the upstream side of the Class 1E load bre a d. lass 1E. The FMCRD circuits on the load side of the Class 1 load breakers down to and including the transfer switches are Class 1E Assoc ated. The feeder circuits from the bA non-Class 1E PIP bus to the transfer switch, and ircuits downstream of the are non-Class 1E. Control fouer & +he t&EY So i+0*' i 5 f M" fre m Misin L tr ~ _ f} ss 1E oads being supplied from a Clas s exists only in Division I, as described above for the FMCRD's. Non-Clas s it. Acads--ere-A_, _,/ permitted on Divisions II or III. This prevents any possibility of interconnection between Class 1E divisions. 8.3.1.1.2 Low Voltage Class 1E Power Distribution System 8.3.1.1.2.1 Power Centers c:\\ow62\\ch8/ch8 draft.wp search 30, 1993 26-
[ t / 'N, / / MARK' UP JEXT INSERh N s / N N N INSERT AD (NRC request to close ' tem'8.2.2. 1 per 5-2 phone call) s x The nor; mal and alternate fsite pre 6 ired power ci cuits ar.e designed with fficiep[ite power'd4strcapaci'ty,and cap ility to mit 'variatio [ of the e(ating voltage the,dns ution syste to a ringe ppropriat to hnsure 1) o norm.g and safe steady'M ate operat 6n of all pla
- loads,
) starth g and acceTaration of the li i ng drive system with e\\ remain r of the lo s in s rvice, and 3) rel able erathon of the contolan(potectionsystem,under onditions of degr ed volta see 8.3.1.1.7 8)]. Sp ifically, the nit auxiliary 'transf mers and th eserve auxi ary tran/foimer are des gned to limit the volta e variation ftl$teonsite ower dist[ibuti syste to plus or minus 10 percpft of load rp ed volhage d Iing all m$ des of stgady state Noperation and a voltage (Jip of no mo~.e an 20 percent during m,otor starting," r \\ N / \\ j INSERT AE (NRC reque's't, to close it m8.2D.651per5-28-93[honeca1) ~ N / N terminals / Volt ge levels a the low-volta determine /the(maximum /ndminimumlo'adthe auxiliery and reser.ve tra sfolmers wiJ be analyzed c $ditions.that are expected roughout t$e anti'c 3oitage g ~ ariationsof[theoffsitetrnsmissionsystemand(patedrangeof the' main generator.
- Separate, analyses wi,11'be performedjoreanhpossiblecircuithonfiguratIonofthe
\\ offsite ser su'pply syst \\.' / \\ p' ,/ / \\ \\ per 5-28-.93 ' phone call) 11 .R, AF (NRC reque tNto close item 8.252.6- /, \\ \\ and op rating haracteristics of'the normal and altelnate 7 eferred Per orma adrequiredth'standshort-circuits, meet operability \\and design-bas p er circut ' ility to with
- 2) equipment ca}fa 'ty, 3) r ch as 1) the roltage and frequ cy transient re M se, 4) voltage egulation li$its,
) step 1 load capabi ty, 6) ordinationofprotectiverelayinkand7) grounding.s / s INSERT C\\ (4 Y r q-crfr$. 3. ' A - ? par-4 -21P%phenc- -c all) - - 2 _ v- ~~ The fault interrupt capability of all Class lE breakers, fault interrupt l s coordination between the supply and load breakers for each Class'lE load and the Division I non-Class lE load, and the zone selective interlock feature of + the breaker for the non-Class lE load all have the capability of being tested (see 8.3.4.29). h
- h-2.
j cow. 1 -1 sG'5W62 AchS/ ins #Tttf'w7 May' 29,'1993^"~' ~. e22. j
l Appropriate plant procedures shall include periodic calibration and functional testing of the fault interrupt capability of all Class lE breakers, fault interrupt coordination between the supply and load breakers for each Class 1E load and the Division I non-Class 1E load, and the zone selective interlock feature of the breaker for he_non-Class 1E load. (see @.3.l f<l), On TVhs kV 5t hrCh ) & tr7 O U 8.3.4.30 Periodic Testing of Electrical Systems & Equipment [$ )- 8 3 N 1-I COL Appropriate plant procedures shall include periodic testing of all Class 1E electrical systems and equipment in accordance with Section 7 of IEEE 308. 8.3.4.31 (Deleted) 8.3.4.32 Class lE Battery Installation and Y.aintenance Requirements The installation, maintenance, testing, and replacement of the Class 1E station batteries shall meet the requirements of IEEE 484 and Section 5 of IEEE 946. 8.3.4.33 Periodic Testing of Class lE Batteries Appropriate plant procedures shall include periodic testing of Class 1E batteries, in accordance with Section 7 of IEEE 308, to assure they have sufficient capacity and capability to supply power to their connected loads. 8.3.4.34 Periodic Testing of Class lE CVCF Power Supplies Appropriate plant procedures shall include periodic testing of Class 1E constant voltage constant frequency (CVCF) power supplies to assure they have sufficient capacity to supply power to their connected loads (see 8.3.1.1.4.2.1). 8.3.4.35 Periodic Testing of Class lE Battery Chargers Appropriate plant procedures shall include periodic testUng of Class 1E battery chargers to assure they have sufficient capacity to supply power to their connected loads (see 8.3.2.1.1). Such periodic tests shall be in conformance with Section 7.5.1 of IEEE 308 (i.e., IEEE 338). 8.3.4.36 Periodic Testing of Class 1E Diesel Generators Appropriate plant procedures shall include periodic testing and/or analysis of Class 1E diesel generators (see 8.3.1.1.8. including demonstration of for each their capability to supply the actual full de ign basis, load current sequenced load step. , g, gg g. g d cek 8.3.5 References In addition to those codes and standards required by the SRP the following codes and standards will be used and have been referenced in the text of this-chapter of the SSAR. IEEE Std 141 Recommended Practice for Electric Power Distribution for Industrial Plants-(IEEE Red Book) 1 c:\\ow62\\ch8/ch8 draft.wp March 30, 1993 l
All qvd leh ti e.K $ tWl $0 % C ) mm beiIdmys ex cerk (.itfixtures enoci"1ed. 0" &S y "ge basic) oys ikCmJelWS 0 TE Gff lC3*Tpror.e. i gry n Standard Plant i u 9.5.3 Lighting and Servicing Power building and refueling floor cranes, welding Supply Systern equipment). Service outlets have grounded connections and the outlets in wet or moist j The plant lighting is comprised of four areas are supplied from breakers with ground i independent lighting systems. They are the current detection. normal lighting system, the standby lighting system, the emergency lighting system, and the 9.5.3.1 Design Itases guide lamp lighting system. The normal lighting 9.5.3.1.1 General Design flases f system is non-Class IE. The other three lighting systems are coroprised of Class 1E (guide lamps i only), Class 8 associated, and non Class 1E The general design bases for the Nuclear Is. land portion of the lighting systems are as fol-( subsystems. 6 / yC ,/ lows: s All lighting systems are designed to provide intensities consistent with the lighting needs of (1) The lighting guidelines shall be based on the areas in which they are located, and with Illuminating Engineering Society (IES) rec-their intended purpose. The lighting design ommended intensities. These shall be in-considers the effects of glare and shadows on service values as shown on Table 9.5-1 Illu-control panels, video display devices, and other mination Levels. Reflected glare will be equipment, and the mirror effects 'on glass and minimized. pools. Lighting and other equipment maintenance, in addition to the safety of personnel, plant (2) Control room lighting is designed with re-equipasent, and plant operation is considered in spect to reduction of glare and shadows on the design. Areas containing flammable materials the control boards. (e.g. battery rooms, fuel tanks) have explosion proof lighting systems. Areas subject to high (3) Lighting systems and components are in con-moisture have water proof installations (e.g. formity with the electrical standards of q' [ drywell, washdown areas). Plant AC lighting NFPA and OSHA as applicable for safety M systems are generally of the fluorescent type, personnel, plant and equipment. %g [ 3/ with mercury lamps provided for high ceiling,as&C. /T M 9;;h!%. except where breakage could (4) Each of the normal, standby or ernergency introduce mercury into the reactor coolant lighting systems has the following arrange. system. Incandescent lamps are used for DC ment criteria: lighting systems and above the reactor, fuel pools, and other areas where lamp breakage could (a) Areas without doors and hatches (where introduce mercury into the reactor coolant. access is impossible) have no lighting. Lighting systems and their distrib ion panels (b) Normal (non-essential) lighting shall apd cables are identified accor og to their have on/off switches if the rooms are <sstatiality and type. Qat%)if a] Class 1E also used as passage (e.g. patros routes). ys ciated lighting systena m socated in S smic Category 1 structures, and are electrically independent and physically separated (c) For high radiation areas, the on/off Cables switches sha11 be arraaged to l in accordance with assigned divisions. facilitate maintenance and to obtain are routed in their respective divisional raceways. Normal lighting is separated from maximum service life from the lamps. standby lighting. DC lighting cables are not routed with any other cables and are (d) The switches shall be located at the en-distinguished by "DCL* markings superimposed on trance to the rooms, or the side of the the color markings at the same intervals. passage. Plant service buses supply power and heavy duty (e) Normal lighting power for the small service outlets to equipment not generally used rooms with on/off switches shall be during normal plant power operation (e.g. turbine supplied from one power bus. 9.54 Amendment M fon 8 35-l cn oa n -,wd u t+ us
..AB M nano 0AH REV B l Standard Plant Note: A small room means a room with (p) Lighting shall be designed with due con-i three or less lighting fixtures, except sideration of reflection on the CRT for instrument rack rooms and electri-screens where CRTs are installed. j cal panel rooms. (q) Lighting fixtures in rooms with glass (f) DC emergency lighting and Class 1E windows shall be arranged with due con-Associated lighting have no switch on sideration of the mirror effect to keep their power supply lines, the window clear. (g) htandby lighting shall have no switch on (r) Power for staircase and passage power supply lines, as a rule. However, lighting is from the standby system and lighting for conference rooms etc., will shall be supplied from two power buses have on/off switches, in the staircases and passages to prevent a total lighting loss. Each - (h) Power of inner panel lighting and out-bus supplies power to 50% of the lets are supplied from one power bus. standby lighting of the passages and staircases. The two power buses for l safety related area passages and (i) Each part of the 120V,240V and 120/ 240V buses in lighting distribution staircases shall consist of the panels shall have two or three spare following: One Class 1E bus (the same division as the safety-related circuits. equipment in the area), which is backed (j) Installation of fixtures on a high ceil-by the associated divisional diesel ing shall be avoided as far as possible generator; and a non-Class 1E bus, to minimize lamp replacement work. which is backed by the combustion turbine generator. Under annual (k) The fixtures shall be located with due inspection of the power supplies, 50% consideration of maintenance and inspec-lighting is secured with one lighting tion for the equipment in the rooms power supply. The 50% lighting level (such as tank rooms) where a well bal-shall be sufficient for access and anced arrangement is difficult. egress of personnel to and from the areas. (1) For mercury lamps, ballasts can be in-stalled separately for life extension un. (5) Lighting fixtures shall be selected in ac-cordance with the following criteria: der the defined environment. (m)The standard installation interval of (a) Lighting fixtures inside the plant service power supply boxes should be shall be the following type of 150 200 ft. fixtures: (n) The standard installatiod interval of (i) Fluorescent lamps: As a rule, outlets should be 50-100 ft, however out-fluorescent lamps shall be se-Iected as fixtures for the lets shall be arranged around instrument racks. The outlet installation level in general area. hazard control areas shall be above the top of dikes. (ii) Mercury lamps: Mercury lamps shall be selected as Hxtures for high ceiling areas aed-the_pe (c) As a rule, normal lighting power shall be supplied with two power buses. How- <_ 2-nee-(except in reactor building / or other areas where lamp ever, a power supply with one power bus can be used for areas with high illumina-breakage could introduce mercury into the reactor coolant). tion lighting by standby lighting and in small rooms. 9Mt Amendment
. ABM WimAn -- ' Standard Plant REV D (iii) Incandescent lamps: Incandescent (k) Outdoor lamps shall have automatic on/ lamps shall be selected as fix-off switches. tures for de emergency lighting aod as fixtures aboye the (1) Class IE Associated lighting equipment l reactors and fuel pool in R/B shall be selected for the following operating floor, areas. Wiring shall be an explosion proof type. (b) Standby lighting shall be the rapid (i) Batch oil tank room such as tur-st art type. bine oil tank room and lubrica. tion oil tank room. (c) Incandescent lamps shall have water proof guards inside drywell. (ii) EHC equipments room. (d) The fixtures can be a general industry type, however the fixtures for the part (iii) Battery rooms. of service area in S/B and control rooms shall match the interior finish of the (iv) Diesel generator rooms, area. (v) Day tank rooms. (e) Lighting fixtures above operator con-soles, bench boards and RW operator con-(vi) Hydrogen related panels and seal soles shall be dark green embedded lou-oil equipment area. ver lighting to reduce the reflection of fixtures on CRT screens. Illumination (m) Lighting inside the cask cleaning pit levels around the operator console and shall be an embedded water proof type bench boards shall be adjustable. fixture. l (f) Non. Class 1E battery pack lamps shall be (n) Feeder circuits for the lighting self contained units suitable for the fixtures and outlets in the following environment in which they are located, areas shall have circuit breakers with ground current detection. l (g) The light fixtures for Class 1E battery packs may be located remote from the (i) Decontamination pans battery if the environment at the lamp is not within the qualified range of the (ii) Decontamination rooms battery. Alternatively, lamps powered from the station batteries may be (iii) Inside Drywell(Outlets) provided. (iv) R/B operating floor (Service (h) Outlets shall have grounded connections power supply boxes) and should be 120V-15A type or 240V-15A f-9 (v) Yard (Damp areQe 7(~ type. (i) Standard service power boxes shall be 3 /-$4) Service power supply boxes. phase 480V-100A type. (6) Fixture installation lev 315-trhzil-be-(j) Lighting around the reactor and fuel follows with consideration for the arrange. x i pool on the R/B operating floor shall be ment of trays.'HVAC ducts and equipment designed with due consideration of the lifting cc: reflection on the water surface to keep ! =-.".;._:__ j^ 7, h ( g f. from impedmg pool work. Lamps in a lo-Equipme t (from Soor surface) cation where the lamps may drop in the reactor or fuel pool, shall have guards. (\\ / 95 3.2 Amendment l
~ ABM 234siooxa l I -
- Standard Plant arv w i
k Distribution ' 6.5 ft to the top of the panels (e) Physical identification of the Class 1E panels and Class 1E Associated equipment and cables is addressed in Subsection Suspended 8 ft to bottom of the fixtures 8.3.1.3. fixture 'f (8) Wires and Cables Wall mounted 8 ft to bottom of the fixtures fixtures (a) Wire size shall be 12 AWG, or larger as - I required. Switches
- 4 ft to center of the switch boxes (b) The size of the neutral line shall be
.the same as the branched circuits. Outlets * (1) 1 ft to center of the switch boxes (9) Conduits i (2) 8 ft to center of the switch (a) Generally, embedded conduits shall be boxes thick wall type, and exposed conduits may be thin wall type. ~ (7) Wiring Criteria _M Exposed conduits in drywell the yar4{ f (a) Wiring from power buses to distribution and the area where safety type fixtures panels shall be done with conduit or or pressure resistant explosion. proof cable trays. Wiring from the fixtures are required shall be thick distribution panels shall be done with wall type, conduits. 9.5.3.1.2 Safety-Related Design Bases [ l (b) Normal non-Class 1E lighting power supply lines from the distribution Nuclear safety related design bases for ABWR panels with dual power bus configuration Standard Plant lighting systems are as follows: can share the same conduit. (1) Mercury vapor fixtures and mercury switches (c) Standby lighting circuits shall not are not used where a broken fixture or share raceways with normal lighting . switch may result in introduction mercury circuits. into the reactor coolant system. A re h p i k//dh./(b. To (d mergency de lighting circuits shall (2)' Adequate lighting for any safety related ar-f not share raceways with any other cas, such as areas used during emergencies circuits. or reactor safe shutdown,' including those J.,_ along the appropriate access or exit /, routes, are provided from 4 different 1
- / n the r2f~the7ght fr he gr und lighting circuits.(normal ac;' standby ac;
/ th nteroff boxes 11 bei ft! 125Vde-or self-contained battery - 4 ' [, MON e fixtures). See Subsection 9.5.13.4 for COL S (1) Bottom of outlets in the area with dikes license information. shall be installed higher than the top of the dikes. See Table 9.5-2 for th~e lighting subsystems and their normal and backup power sources and f2) Outlets in laboratories and enalysis the switching sequence. This table shows that rooms shall be installed at an approp-the lighting is provided with normal $tandby(and) riate level with consideration of th u::,,:, i lighting during normal operation. -{ work in the area. On the loss of normal power, the lighting is l j provided from standby " _fmypower. On Detailed installation levels 'will be 1 coordinated at the construction site. ./b33 Amcodment
3 23A6100AH J Standard Plant any 3 -ejh/..h continuously, they require no periodic testing. e s The guide lamps will be inspected and tested e .s z periodically to ent.ute operability of lights and,, ' ' switching circuits. /jac Cu O'sY'g el ) llo w cvcV> Pers td'c wspatwa r ska!/ yce9 / ad buIb t eplace r u ee pa er-estsee s9 (6 r t 95-3.7 Amendment 2 l d l - --.}}