IS 3034: Fire Safety of Industrial Buildings: Electrical Generating and Distributing Stations - Code of Practice

24 Pages·1993·2.7 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 3034 (1993): Fire Safety of Industrial Buildings:
Electrical Generating and Distributing Stations - Code of
Practice [CED 36: Fire Safety]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 3034 : 1993
( Reaffirmed 1998 )

Indian Standard
FIRESAFETYOFINDUSTRIALBUILDINGS:
ELECTRICALGENERATINGAND
DISTRIBUTING STATIONS - CODE OFPRACTICE
( Second Revision )
First Reprint MAY 1999
UDC 699.81.j25.4 : 621.311 : 006.76
Q BIS 1993
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

August 1993 Price Group 8
eriF ytefaS lanoitceS ,eettimmoC CED 36
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht
eriF ytefaS lanoitceS eettimmoC had neeb devorppa yb eht liviC gnireenignE noisiviD .licnuoC
A suounitnoc ylppus fo cirtcele rewop is fo yramirp ecnatropmi ot tsomla all human ,seitivitca
lairtsudni .rotces eriF ro noisolpxe ni a rewop noitats yam yletelpmoc liatruc ylppus
particularly for the
fo lacirtcele rewop for elbaredisnoc emit ni noitidda ot gnisuac evisnetxe ytreporp egamad ot eht
gnidliub and .tnempiuqe
ecnatropmI fo erif ytefas rof eht lacirtcele gnitareneg and gnitubirtsid snoitats has neeb ylgnisaercni
desingocer eud ot secnerrucco fo lareves gnitatsaved serif ni hcus sesimerp ni eht tnecer past. ,eroferehT
gniredisnoc eht tcaf that yna erif ni hcus seicnapucco yam yletelpmoc tpursid eht efil fo eht ,ytinummoc
ylsuoires repmah lareves seirtsulf)li devres yb ,meht and osla yam evlovni tnemecalper fo ylhgih elbaulav
,tnempiuqe ti is yrassecen that yreve tpmetta dluohs eb edam ot tneverp ro at tsael eziminim eht
ecnerucco fo serif ni eseht .seicnapucco noitallatsnI fo tnempiuqe gnivah ni-tliub ytefas serusaem ni eht
sesimerp and laiciduj noisserppus ro noitalosi fo erif risks lliw erofereht ecuder htob eht ycneuqerf fo
skaerbtuo fo erif as llew as niatnoc its daerps ot rehto .saera ,rehtruF htiw eht noitpoda fo elbatius erif
ytefas smron htiw drager ot ,ngised tuoyal and noitcurtsnoc fo buildings and rehto ,serutcurts eciohc fo
slairetam rof ,noitcurtsnoc ,cte eht sesimerp nac eb deredner erom efas morf erif risk tniop fo .weiv
sihT standard was dehsilbup ni 1966 and desiver ni 1981. sihT dnoces noisiver setaroprocni niatrec
snoitacifidom desab no eht snoitseggus deviecer morf suoirav .snoitazinagro emoS fo eht tnatropmi
segnahc etaler ot snoisivorp ni tcepser fo erif noitcetorp rof rotareneg-obrut buildings, hctiws raeg
,smoor elbac ,seirellag elbammalf lio ,egarots laoc handling plants, remrofsnart sdray and hcus rehto
suodrazah .saera
ehT tnatropmi erif ytefas and erif noitcetorp stnemeriuqer rof a rewop plant hcihw dluohs eviecer
noitnetta era nevig ni this standard. erehW ,yrassecen secnerefer ot tnaveler naidnI Standards evah osla
neeb .edam ynA erif ytefas serusaem rehto than esoht derevoc ni this standard, fi debircserp ni eht
tnaveler yrotutats selur and snoitaluger dluohs osla eb derehda .ot ehT eettimmoC elbisnopser rof eht
noitaraperp fo this standard is nevig at xennA .B
roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc ,htiw eht
lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana shall eb dednuor ffo ni
ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( revised)‘. ehT rebmun fo
tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni
this standard.
SI 3034 : 1993
Indian Standard
FIRE SAFETY OF INDUSTRIAL BUILDINGS:
ELECTRICAL GENERATING AND
DISTRIBUTING STATIONS - CODE OF PRACTICE
/ Second Revision )
1 EPOCS tnemesab roolf yletaidemmi htaeneb eht
renrub ,tnorf and eht reliob gnisac aera
sihT standard syal nwod eht erif ytefas -eriuqer
evoba eht renrub wind ;xob
stnem gnidrager gnidliub ,noitcurtsnoc suoirav
ssecorp sdrazah and ,seitilicaf egarots ,saera ,cte 4 liO dellif ,rotareneg noita’ts tinu and
yrailixua ,sremrofsnart rotcaer -rofnart
gniniatrep ot yticirtcele gnitareneg snoitats
srem gnidulcni detaicossa relooc and
( erehw yticirtcele is detareneg morf -nevnoc
noitasrevnoc tanks;
lanoit secruos using ,laoc ,lio gas ,senibrut leseid
rotareneg sets, and eht gnitubirtsid snoitats .) )f yrailixuA ,sreliob lio renrub pumps;
fit) leseiD nevird enigne/pmup units and rieht
NOTE - sihT dradnats seod ton laed htiw eht erif
leuf and egarots tanks;
ytefas stnemeriuqer fo nuclear rewop stnalp dna
cirtcele-ordyh rewop .snoitats h) kluB negordyh ;serots and
)j negordyH noitareneg plant.
2 SECNEREFER
3.3 trapA morf lacinahcem sdrazah fo gas
ehT naidnI Standards detsil ni xennA A era
,senibrut eht sdrazah morf erif ylniam esira morf
yrassecen stcnujda ot this standard.
leuf noisolpxe serif eud ot kael ni eht leuf metsys
ro gnitacirbul and laes lio .smetsys ecafruS
3 LARENEG
serutarepmet fo elbitsubmoc srebmahc lliw eb
rehgih than noitingi erutarepmet fo leuf and
3.1 ehT main erif risk saera ni a lamreht rewop
ebul .lio
noitats :era
)a lortnoC ;moor 3.4 ehT noitubirtsid snoitats hcus as daol -sed
hctap sertnec and snoitats-bus osla esuac erif
)b hctiwS raeg ;moor
sdrazah arising morf dleif-lio ,sremrofsnart
)c elbaC syaw and ;secar hctiws ,raeg elbac ,slennut/seirellag .cte
)d lioC and lio ;egarots
)e laoC handling metsys gnidulcni royevnoc 3.5 ehT planning rof eht erif noitcetorp emehcs
dluohs start thgir morf eht ngised egats fo eht
;stleb
plant, ybereht gnirusne that etauqeda and
f ) remrofsnarT ;sesuoh elbatius erif noitcetorp ,serusaem htob evitca
)g laoC ;sesuoh and evissap era detaroprocni ton ylno elihw
)h laoC ;sllim and gnisilanif eht plant ngised ,flesti tub thgir up ot
eht noiteIpmoc ..egats
)j .sreknuB
3.6 nI eht erif noitcetorp metsys rof eht rewop
3.2 ehT gniwollof era osla eht saera gnivah hgih plant, eud noitaredisnoc shall nevig.eb ot eht
egamad laitnetop ni a lamreht rewop :noitats regnad fo ekoms gniggol ni all ,snoitacol ni -idda
noit ot gnidraugefas against rehto ylekil suoesag
4 rotareneg-obruT gnidulcni gnitacirbul and
gnikcaj lio ,smetsys rotareneg-obrut cixot ,stcudorp eht noisivorp fo etauqeda snaem
fo epacse shall osla eb nevig eud noitaredisnoc
gnitroppus serutcurts and roolf saera
ni eht tseretni fo efil .ytefas
dnuora eht ;enibrut
b) negordyH gnilooc and laes lio ;tnempiuqe
4 GNIDLIUB NOITCURTSNOC AND
cl relioB deef pmup enibrut gnidulcni -irbul DETALER STNEMERIUQER
gnitac and gnikcaj lio ,secivres and
gnitroppus serutcurts gnidulcni roolf saera 4.1 ehT larutcurts stnemele fo all buildings fo
dnuora eht ;pmup an lacirtcele gnitubirtsid/gnitareneg noitats shall
4 renruB tnorf saera fo eht reliob gnidulcni eb fo epyT 1 ,noitcurtsnoc gniylpmoc htiw eht
leuf lio gnithgil up sredaeh and epip krow stnemeriuqer as nevig ni St 1642 : 1989.
1
SI 3991:4303
2.4 noisivorP rof ekoms ,noitalitnev ylbareferp )n neewteB yrettab smoor and rehto -niojda
fo citamotua epyt shall eb ,edam revo eht -eneg gni ,saera and
rotar roolf ot timrep epacse fo taeh and egral
)p neewteB elbac seirellag fo hcae .tinu
semulov fo ekoms ylekil ot eb .detareneg ehT
stnemeriuqer fo erif gnitnev shall mrofnoc ot 4.5 ehT srood dedivorp ni eht noitarapes walls
eht snoisivorp deniatnoc ni tnaveler naidnI neewteb eseht erif saera shall eb gnisolc-fles
Standards. kcehc-erif srood fo erif gnitar lauqe ot that fo
eht erif wall.
4.3 A lamron noitalitnev etar fo muminim
2 selcyc rep ruoh shall eb deniatniam rof egral 4.6 ssalG/srotalitneV/swodniW slenap ni erif
aera enibrut halls. roF noitcartxe fo ekoms morf noitarapes walls rof( ,elpmaxe rof lortnoc smoor
,erif a emulov egnahc etar fo 12 segnahc rep ro retupmoc smoor ) shall eb dedivorp htiw
ruoh shall eb deniatbo gnidneped no erif ,daol ylbareferp raelc erif gnitsiser glass slenap fo
moor ,thgieh ,ezis .cte nI esac eht start fo eht muminim 45 setunim erif ecnatsiser ro htiw
ekoms noitcartxe is ,deyaled eht emulov egnahc citamotua erif tnatsiser srettuhs ro citamotua
etar shall evah ot eb desaercni neve up ot 30 retaw( .niatruc
segnahc rep .ruoh ekomS stnev fo devorppa
4.7 ralulleC ro demaof citsalp slairetam ( hcus
ngised shall eb detaroprocni ni elbac /slennut
as dednapxe ,enerytsylop enahteruylop maof
,seirellag plant ,smoor hctiws draob ,smoor cte
cte ) shall ton eb desu as roiretni hsinif ro insu-
and noisivorp edam rof eht tnemhcatta fo
ninoital yna trap fo eht .gnidliub erehW roiretni
elbatrop noitcartxe ,tinu fi ton ydaerla devres
hsinif ( wall linings, eslaf ,sgniliec cte ) is -nu
yb a dexif ekoms noitcartxe .noitallatsni
,elbadiova yeht shall eb elbitsubmoc-non -etam
4.4 oT eveihca ,noitatnemtrapmoc eht plant lair and fo Class 1 emalf daerps ( ees SI 12777 :
shall eb dedivid-bus otni laudividni erif ,saera 1989 .)
ot eb mumixam tnetxe .elbisaef ecudeR eht
4.8 riA gninoitidnoc rof eht lortnoc moor shall
daerps fo erif neewteb hcus saera and eht -snoc
edivorp a desirusserp tnemnorivne ot edulcerp
laitneuqe ,egamad and osla ot eveihca ysae
eht yrtne fo ekoms ni eht tneve fo a erif edistuo
lortnoc and tnemhsiugnitxe fo .erif hcuS sub-
eht lortnoc .moor
noisivid yb erif sreirrab ro noitarapes walls fo
muminim 2 sruoh erif ecnatsiser shall eb dedivorp 4.9 citsalP ,stcud gnidulcni erif tnadrater sepyt
ni eht gniwollof :sesac shall ton eb desu rof gnitalitnev .smetsys
a) erehW enibrut hall sesuoh erom than eno 4.10 noisivorP shall eb edam ni all erif saera fo
,tinu a erif noitarapes/reirrab wall shall eht plant rof lavomer fo all liquids, gnidulcni
eb dedivorp rof hcae tinu htaeneb eht erif gnithgif ,retaw yltcerid ot efas .saera ehT
gnitarepo roolf ni eht enibrut and -irtcele eganiard seitilicaf shall eb etauqeda ot retac ot
lac ;syab all fo eht gniwollof :seicnegreme
b) neewteB GT hall and lortnoc -moc/moor )a ehT spill fo eht tsegral elgnis reniatnoc fo
retup tnemurtsni/moor ;moor yna elbammalf ro elbitsubmoc liquids ni
eht ;aera
lc neewteB GT hall and lacirtcele -hctiws
raeg moor ( esiw-tinu sreirrab dedeen ;) ‘4 A muminim wolf fo 3 600 mpl rof erif
gnif,hiit snoitarepo rof at tsael 20 ;setunim
d) neewteB eht GT hall and elbac seirellag
( esiw-tinu sreirrab dedeen ;)
4 A mumixam ngised egrahcsid fo dexif erif
9f neewteB GT hall and reliob ;esuoh
noisserppus metsys gnitarepo rof a -inim
)f neewteB GT hall and laoc ;sresirevlup mum fo 20 .setunim
g) neewteB GT hall and evitartsinimda
11.4 roolF gniniard morf saera gniniatnoc -malf
;gnidliub
elbam ro elbitsubmoc liquids shall etaroprocni
4 neewteB sesacriats and tfil stfahs and eht elbatius emalf traps ro emalf ,sretserra -mrofnoc
tser fo eht ;gnidliub gni ot SI 11006 : 1984.
3 neewteB egarots fo elbammalf liquids and 4.12 ehT gnidliub ro tnemtrapmoc gnisuoh eht
tser fo eht ;gnidliub laoc gnisirevlup tnempiuqe shall eb -curtsnoc
k) neewteB remrofsnart roodtuo/dray -snart det ni ecnadrocca htiw SI 3595 : 1984. ehT
sremrof and rehto ybraen ,gnidliub ni yawrood sgninepo ni eht gnitarapes walls shall
esac a raelc ecnatsid fo 15 m is ton -liava eb dedivorp htiw sills fo ton less than 15 sme
;elba thgieh htiw noisivorp fo ramps no rehtie .edis
lm neewteB laudividni dleif-lio sremrofsnart 4.13 hctiwS raeg reverehw ,elbacilppa tiucric-lio
gniniatnoc lio ni ssecxe fo 2 000 sertil ni srekaerb and sremrofsnart shall eb desuoh
esac raelc ecnatsid as deificeps ni SI 1646 : ylbareferp ni dehcated elgnis yerots gnidliub
1982 is ton ;deniatniam fo epyT 1 noitcurtsnoc ( ees SI 1642 : .)9891
2
IS3034:1993
4.14 ehT gnidliub desu rof egarots sesoprup denifnoc .ecaps ,eroferehT ti is ylhgih laitnesse
shall morfnoc ot eht stnemeriuqer fo SI 3594 : ot erusne reporp noitalitnev ot eht reknub .aera
1991.
5.2 Turbo-Generators
4.15 ehT ytefas ecnatsid gnitarapes suoirav
buildings shall eb ni ecnadrocca htiw SI 1643 : 5.2.1 elihW ynam fo eht redlo units era nepo
1988, and eht snaem fo tixe tnemeriuqer shall ngised and ria ,delooc all rewen and regral units
eb ni ecnadrocca htiw SI 1644 : 1988. era yllatot desolcne and ,negordyh ro retaw
,delooc ro esu a noitanibmoc fo diuqil and gas
4.16 ecnatsiD gnitarapes leuf lio egarots tanks,
rof .gnilooc ehT rotats gnidniw yam eb diuqil
nepo egarots fo lio drums, cte shall eb ni
delooc and eht rotor gas delooc yb esu fo
ecnadrocca htiw eht tnaveler yrotutats -eriuqer
.negordyh lacinahceM fo lacirtcele eruliaf fo
.stnem
eht srotareneg era elbissop htiw tnatluser erif
.sdrazah
4.17 ehT rewop noitats buildings and hctiws
sdray shall eb dedivorp htiw gninthgil noitcetorp
5.2.2 emoS fo eht ria delooc srotareneg era
gnimrofnoc ot SI 2309 : 1989. dedivorp htiw CO, gnihsiugnitxe smetsys rof eht
5 POWER STATION FACILITIES windings. negordyH gnilooc is yllareneg desu
rof regral senihcam ( yticapac gnideecxe 200
MW .) ehT rotareneg lortnoc tnempiuqe is
5.1 Coal Storage and Handling
yllausu dedivorp htiw secived ot rotinom eht
ehT ytefas stnemeriuqer rof eht laoc egarots and
negordyh gas erusserp and .ytirup oT tneverp
handling and rehto detaicossa stnempiuqe ni eht
gas ,segakael 011 erusserp gland seals ( lio seals )
rewop noitats shall mrofnoc ot eht snoisivorp
era .dedivorp enO fo eht laitnesse erif ytefas
deniatnoc ni SI 3595 : 1984. ,revewoH niatrec stnemeriuqer ni negordyh delooc srotareneg is ot
stcepsa hcihw deen laiceps noitnetta era -emune
maintain eht ,H ytirup at tuoba 95 tnecrep ot
detar .woleb ekam noisolpxe risks .muminim ,revewoH ereht
is noisolpxe drazah ni eht lio metsys and osla
5.1.1 ehT tleb royevnoc metsys dellatsni rof
ni eht tneve fo negordyh kael hguorht eht lio
handing laoc shall ylbareferp eb fo desolcne
seals. ehT drazah fo a GT erif tnedicni yam eb
epyt os as ot tneverp eht epacse fo dust ni eht
desaercni fi negordyh is desaeler ni eht tneve fo
rewop esuoh aera and eseht shall eb ylhguoroht
lacinahcem eruliaf ro ereves .noitarbiv eriF is
dednob and dednuorg ot eziminim citats dis-
eht tsom nommoc tluser fo 1H .egakael A wef
.segrahc Dust srotcelloc dluohs ylbareferp eb
detacol ,sroodtuo reverehw .yrassecen stnedicni evah derrucco erehw gnipacse IH has
dexim htiw ria and .dedolpxe
5.~2 ehT royevnoc tleb shall ylbareferp eb fo
erif tnatsiser lairetam gnimrofnoc ot SI 3181 : 5.2.3 ehT tH srednilyc desu rof gnilooc shall eb
1978. ehT sgninepo ni eht walls and sroolf decalp sroodtuo ro ni a etarapes llew detalitnev
hguorht hcihw eht royevnoc tleb metsys passes moor htiw .tsuahxe erehW ,H is deilppus morf
shall eb yletauqeda detcetorp htiw ylreporp a lartnec egarots ,edistuo ycnegreme.ua ffo-tuhs
dengised retaw yarps selzzon elbapac fo -divorp evlav shall eb dellatsni no eht ylppus enil at an
gni eht yrassecen elcitrap ezis and ,erusserp ot elbissecca noitacol hcihw yam eb detarepo morf
revoc pot and mottob sides fo eht sroyevnoc eht lortnoc .moor nehW ,H delooc srotareneg
raen eht .sgninepo esehT retaw yarps selzzon era nekat tuo fo ecivres rof ,noitcepsni ro
shall eb dellortnoc yb an citamotua evlav -autca ,sriaper and gnirud noitarotser ot ,ecivres an
det yb erif srotceted htiw a manual .edirrevo treni gas, hcus as COs shall eb desu ot egrup
eht enil ot tneverp eht fonoitamrof an evisolpxe
5.1.3 ralugeR noitcepsni htiw laidemer -niam ,H ria .erutxim
ecnanet shall eb nekatrednu ot ecuder laoc
egallips smelborp and erofereht eht erif risks. 5.2.4 lacidoireP skcehc rof ,H skael shall eb
edam at eht rotareneg and gnilaes .metsys
5.1.4 laicepS erac shall eb nekat against eht risk
fo erif elihw stleb era gnieb desinacluv ro nehw 5.2.5 rojaM erif risks ni srotareneg-obrut esira
gnidlew is gnieb deirrac tuo ni eht ytiniciv fo morf eht egakael ro epacse fo elbitsubmoc -irbul
.sroyevnoc gnitac and ciluardyh sdiulf deniatnoc ni eht
gnitacirbul ro ronrevog seals, and gnikcaj lio
5.1.5 ehT rojam erif drazah ni sreknub is desuac .smetsys ehT risk yllamron sdnetxe ot eht roolf
yb stagnant laoc hcihw yam niamer rof gnol saera hcihw esuoh eht gnitacirbul smetsys and
sdoirep ni sreknub neve hguoht yeht era -itnoc nihtiw eht radius fo an lio yarps nrettap -dacsac
ylsuoun ni .esu ehT secnahc fo eht stagnant laoc gni morf a eruliaf fo gniraeb lio ylppus .sredaeh
gnihctac erif era yltaerg detavargga yb yna
thguard fo ria hguorht eht laoc ni eht .sreknub 5.2.6 A bund wall shall dnuorrus and niatnoc
nI eht tneve fo a erif ni eht ,sreknub eht owt eht main gnitacirbal ,lio gnikcaj and gnihsulf lio
main sdrazah era eht noitcudorp fo ylhgih cixot egakcap tinu ,era ot tneverp daerps fo lio ot
CO gas and osla noitareneg fo kciht ekoms ni a gnidnuorrus roolf .saera
3
IS 3034 : 1993
5.2.7 etercnoC ro etercnoc detcetorp leets shall eht eritne .aera ehT lio tanks dluohs osla eb
eb desu rof eht gnitroppus erutcurts fo -obrut detcetorp yb 38 mm dexif retaw srotinom at
rotareneg units. desopxE leets noitcurtsnoc is egatnav stniop os as ot edivorp retaw rof -looc
elbatpecca fi detcetorp yb an citamotua eguled gni fo eht tanks.
relknirps metsys ( ,fi seitilicaf tsixe rof -gel‘
5.3.5.2 ehT 011 egarots tanks dluohs osla evah
’gnittew .)
dexif maof erif gnihsiugnitxe metsys ni -rofnoc
5.3 Fuel Oil Storage ytim htiw SI 12835 ( traP 1 ) : 1989.
5.3.1 ehT erif ytefas stnemeriuqer rof all eht 5.4 Lubrication Oii Risks
leuf lio egarots seitilicaf ni eht rewop plant shall
mrofnoc ot eht tnaveler yrotutats .stnemeriuqer 5.4.1 ehT erif risk fo eht noitacirbul metsys fo
eht obrut rotareneg yam eb ylbaredisnoc
trapA morf ,eseht emos fo eht rehto tnatropmi
decuder yb using yletelpmoc etarapes stiucric
stnemeriuqer :era
rof eht gnitacirbul metsys and eht lortnoc
4 ylnO eht muminim ytitnauq deriuqer rof .metsys ehT risks esira morf an epacse fo -moc
s’yad stnemeriuqer shall eb derots ni eht elbitsub stnacirbul and ciluardyh sdiulf deniatnoc
GT esuoh ;sesimserp ni eht .smetsys
b) llA lanretni egarots tanks shall eb -ivorp 5.4.2 An lio erif yllareneg swollof an epacse fo
ded htiw a hguort ro ,tiphctac gnivah eht diulf no ot toh maets ,secafrus noitangerpmi
emas yticapac as eht tank, rof gnitcelloc and noitprosba fo lio otni laggings and egakael
,segakael hcihw shall eb deppiuqe htiw a otni lacirtcele .tnempiuqe
niard ,epip gnidael kcab ot eht main
ylppus tank ro refas ;saera and 5.4.3 ehT suounitnoc egakaei and noitprosba fo
elbitsubmoc slio otni lagging gnirevoc maets
c) llA evoba dnuorg egarots tanks dellatsni
,sepip enibrut ,gnisac cte evig esir ot lagging lio
srood-ni shall ylpmoc htiw eht gniwollof
.serif
:snoisivorp
5.4.4 ehT laes lio and eht gnikcaj lio smetsys
)i ehT laudividni yticapac fo yna tank
era osla tcejbus ot eht emas risks.
shall ton deecxe 10 000 ;sertil
)ii ehT etagergga yticapac fo hcusI tanks 5.4.5 erehT shall eb tnemegnarra rof gnitcelloc
shall ton deecxe 2 00 000 ;sertil and segakael fo gnitacirbul lio morf eht gnitubirtsid
epip snoitallatsni yb gnitpoda yna eno fo eht
)iii ehT ’tnemtrapmoc/gnidliub gnisuoh
gniwollof :sdohtem
egarots tanks shall eb detagerges
morf rehto tnemtrapmoc/gnidliub yb )a yB gninnur eht lio senil ni denil-leets
gnitarapes walls, and all sgninepo shall ,hguort yllaiceps dedivorp rof this -rup
eb detcetorp yb erif gnitsiser srood fo ;esop and
2 sruoh gnitar and a kcirb ro etercnoc )b yB gniyolpme eht elbuod epip metsys that
thgit-diuqil pmar at kast 150 mm ni is gninnur eht desirusserp ylppus epip
.thgieh edisni a egral epip gnitca as a egakael
,rotcelloc hcihw shall osla tca as a nruter
An rood-ni egarots tank shall ton eb dellif
5.3.2 .epip
esiwrehto than morf nepo ria hguorht a -amrep
yltnen dexif latem ,epip eht telni fo hcihw shall 5.4.6 erehW ti is ton elbacitcarp ot etarapes lio
eb dettif htiw a dewercs pac ro .evlav ehT llif risks morf toh sepip and stnenopmoc yltneiciffus
,epip shall dnetxe otni eht tank os that its teltuo gnitcelfed/gnidleihs setalp and noitcetorp -dalc
is nihtiw 5 mc fo eht tank .mottob gnid shall eb dedivorp at elbatius tniop and
.ecalp
5.3.3 llA lio tanks shall eb dettif htiw a tnev
epip gnidael otni nepo ,ria eht nepo dne gnieb 5.5 Boiler Plant
derevoc htiw a standard emalf retserra -mrofnoc
5.5.1 ehT sliated ni tcepser fo eht erif ytefas
gni ot SI 11006 : 1984.
stcepsa fo eht reliob plant noitallatsni and -ixua
5.3.4 roF egarots detacol ,srood-ni wolfrevo yrail tnempiuqe shall mrofnoc ot eht noisivorp
sepip shall eb deirrac edistuo eht ,gnidliub and deniatnoc ni SI 8633 : 1977.
reviled eht lio otni a hctac tip ro rehto efas 5.5.2 ehT leuf yreviled ot eht srenrub shall eb
noitisop and eht epip shall etanimret ni a retaw fo reporp erutarepmet and erusserp as -mocer
laes reniatnoc at tsael 30 mc woleb eht ecafrus dednem yb eht .rerutcafunam
fo .retaw
5.5.3 Furnace and Its Control Unit
5.3.5 Outdoor Oil Storage ehT yllaunam detarepo srepmad fo eht sreliob
5.3.5.1 lanretxE tnardyh metsys rof eht rewop shall eb hcus that yeht yam ton esolc ffo erom
plant dluohs eb dednetxe ot revoc eht roodtuo than 80 tnecrep fo eht lanretni lanoitces-ssorc
egarots tanks htiw 63 mm elbuod teltuo gnirevoc aera fo eht ekoms .epip
4
163034:1!M3
5.54 The automatically operated dampers of 6.2 Cables and Cable! Galleries ate
the boilers shall be of type to maintain safe
6.2.1 The fire protection requirement for cable
damper openings at all times and arranged to
galleries, cable runs., etc shall conform to the
prevent starting of burner unless the damper is
provisions contained in IS 12459 : 1988, includ-
opened at least 20 percent of the internal cross-
ing the fire protection requirements such as
sectional area of the smoke pipe.
segregation of cable runs into compartments,
55.5 Readily accessible shut off valves shall be use of fire resistant cables in critical tieas and
provided in oil supply line near each oil burner. groups of cables, sealing of penetrations in the
walls and floors by use of fire stops, 6re detection
55.6 Every boiler shall be equipped with the and alarm systems, and the extinguishing
following safety control devices: systems.
a) Electrical ventilation interlocking mecha- 6.3 Transformers
nisms which would prevent the fuel
pumping circuit from being put into 6.3.1 All transformer installations shall comply
operation without closing the ventilating with the provisions of IS 1646 : 1982 in addition
fan-motor circuits; to the following:
b) Pre-ventilation time delay which would a) As a protection against excessive damage
prevent the furnaces from being fired due to occurrence of faults, transformers
until and unless the furnace had been fitted with conservators shall be protec-
ventilated for a pre-determined period of
ted with Buchoz Relay;
time;
b) All transformers shall be equipped with
c) Anti-flooding device to prevent abnorma! oil temperature alarms or excess current
discharge of oil at the burner; and relay protection;
d) Flame failure safeguard which would 4 The bushings, insulators, and contacts of
automatically cut off flow of fuel in the taps changing gears shall be kept scru-
event of accidental extinguishment of the puluosly clean at all times; and
burner flame.
4 The level and dielectric strength of the
5.5’7 No maintenance work shall be undertaken transformer oil shall be checked at perio-
on a furnace without completely purging the dic intervals, and in the event of presence
interior of all traces of flammable gases and of a large quantity of sludge the oil shall
vapours and unless satisfactory results are be renewed.
obtained by checking with a cumbustible gas
6.3.2 In addition to the usual cable clamps above
indicator ( explosive meter ).
floor level, cables shall also be clamped imme-
diately below floor level. Each. cable or group
6 ELECTRICAL EQUIPMENT AND
shall, where possible, be protected by a pipe or
INSTALLATIONS
cover of heat resisting material rising to a
height of at least 45 cm above floor level or
6.1 -General Requirements
terminating just below cable gland, sealed at
6.1.1 The electrical equipment and installations the bottom and filled with sand or small pebbles.
of the power stations shall conform in all res-
pects to the relevant guidelines given in IS 1646 : 6.33 Whenever possible, all jute shavings shall
be removed from cables in switch rooms, base-
1982.
ments and tunnels.
6J.2 Gasoline, benzene, ether, alcohol and
63.4 Where cables rest on the floor of tunnel
similar flammable cleaning fluids shall not be
or basements, they shall be separated into
used on energized electrical apparatus. The use
groups by vertical barriers of tile brick, or con-
of such flammable cleaning fluids on de+nergized
crete and the trenches so formed shall be filled
apparatus may, however, be permitted provided
with small pebbles. Alternatively, the cables
the apparatus is not energized within half an
may be separately clamped and each cable run
hour of such use.
shall be separated by a minimum clear space of
6.1.3 None of the flammable solvents mentioned 75 mm.
in 6.1.2 shall be used in the vicinity of electrical
63.5 The cable shall not be routed near hot
equipment from which spark may be received.
steam pipe, turbine, pulverised coal pipe and
6.1.4 Every electrical equipment shall be kept near hot gas ducts. Wherever it is unavoidable
free of deposits of oil, grease, carbon dust, etc. fire resistant cables shall be used.
61.5 Each and every electrical equipment shall 6.3.6 Power cables and control cables shall run
be effectively earthed to avoid any flask/spark. in separate trenches, wherever possible.
5