IS 3347-8-2: Dimensions for porcelain transformer bushings for use in lightly polluted atmospheres: Part 8 52 kV bushings: Section 2 Metal parts

15 Pages·1992·1.3 MB·English

by  Bureau of Indian Standards

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timely dissemination of this information in an accurate manner to the public.
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 3347-8-2 (1992): Dimensions for porcelain transformer
bushings for use in lightly polluted atmospheres: Part 8 52
kV bushings: Section 2 Metal parts [ETD 6: Electrical
Insulators and Accessories]
“!ा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””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS 3347 ( Part 8/Set 2 ) : 1992

Indian Standard
DTMENSIONS FOR PORCELAIN
TRANSFORMER BUSHINGS FOR USE IN
LIGHTLY POLLUTED ATMOSPHERES
PART 8 52 kV BUSHINGS
Section 2 Metal Parts
UDC 621’314 - 233’2 : 006’87

0 BIS 1992
BUREAU OF LNDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

March 1992 Price Group 4
lacirtcelE srotalusnI dna seirosseccA lanoitceS ,eettimmoC TE 06
DROWEROF
sihT naidnI dradnatS ( Part teS/S 2 ) was adopted yb the uaeruB of naidnI ,sdradnatS after the
draft dezilanif yb the lacirtcelE srotalusnI dna seirosseccA lanoitceS eettimmoC had neeb devorppa
yb the lacinhcetortcelE noisiviD .licnuoC
sihT dradnats ( Part teS/8 2 ) srevoc the snoisnemid dna slairetam of latem parts dna seirossecca of
52 kV ssalc remrofsnart sgnihsub htiw the tcejbo of gnirusne rieht .ytilibaegnahcretni
ehT snoisnemid of nialecrop remrofsnart sgnihsub of other egatlov sgnitar are derevoc ni SI 3347
snoisnemiD‘ for nialecrop remrofsnart sgnihsub for esu ni ylthgil detullop ’serehpsomta dna SI 8603
snoisnemiD‘ for nialecrop remrofsnart sgnihsub for esu ni ylivaeh detullop ’serehpsomta for esu ni
lamron dna ylthgil detullop serehpsomta dna ylivaeh detullop serehpsomta .ylevitcepser
ehT nialecrop sgnihsub for gnitanretla egatlov pu ot 1 000 V are derevoc ni SI 7421 : 1988
nialecroP‘ sgnihsub for gnitanretla egatlov pu ot dna gnidulcni 1 000 V tsrif( revision )‘.
sihT dradnats desirpmoc two snoitces deussi as two separate .sdradnats elihW siht noitces
( noitces 2 ) srevoc the snoisnemid of the latem parts dna ,seirossecca the nialecrop parts are derevoc
ni the other noitces ( noitceS 1 ).
roF the esoprup of gnidiced whether a ralucitrap tnemeriuqer of siht dradnats si deilpmoc ,htiw
the lanif ,eulav devresbo or ,detaluclac gnisserpxe the tluser of a test, llahs eb dednuor off ni
ecnadrocca htiw SI 2 : 1960 seluR‘ for gnidnuor off laciremun seulav ( revised )‘. ehT rebmun of
tnacifingis secalp deniater ni the dednuor off eulav dluohs eb the emas as that of the deificeps eulav
ni siht .dradnats
IS 3347 ( Part 8/Set 2 ) : 1992
hdian Standard
DIMENSIONS FOR PORCELAIN
TRANSFORMER BUSHINGS FOR USE IN
LIGHTLY POLLUTED ATMOSPHERES
PART 8 52 kV BUSHINGS
Section 2 Metal Parts
EPOCS SECNARELOT
1 4
4.1 Unless deificeps ,esiwrehto elbawolla -relot
sihT standard ( traP teS/8 2 ) syal nwod eht
secna no snoisnemid fo yna denihcam trap shall
,snoisnemid secnarelot and slairetam fo latem
eb ni ecnadrocca htiw muidem class fo SI 2102
parts and seirossecca fo eht bushings fo 52 kV
traP( :)I 1980.
1000 A desu htiw rewop sremrofsnart and
srotcaer rof esu ni ylthgil detullop .serehpsomta 4.2 Unless deificeps ,esiwrehto elbawolla -relot
secna fo snoisnemid fo yna degrof ro tsac latem
2 ECNEREFER SDRADNATS
trap shall eb ni ecnadrocca htiw esraoc class fo
A ‘tsil fo standards nevig ni xennA A era SI 2102 traP( 1 ) : 1980.
yrassecen tcnujda ot this standard.
5 LATEM STRAP AND SEIROSSECCA
3 SLAIRETAM 5.1 lanogaxeH Nuts
ehT slairetam fo suoirav parts shall mrofnoc ot ehT snoisnemid fo lanogaxeh nuts desu shall
eht tnaveler naidnI Standards as deificeps :woleb mrofnoc ot SI 1364 ( traP 3 ) : 1983. ehT sdaerht
Metal Part or Accessory Material
lanogaxeH Nut rof metS Brass htiw a muminim elisnet htgnerts fo 300 2mm/N
metS ( ees .giF 1 ) hgiH ytivitcudnoc reppoc ot PTE edarg SI 191 ( Parts 1
ot 10 > : 1980 and seitreporp as rep SI 613 : 489I
Cap ( ees .giF 2 ) Brass yollA Cu nZ 42 bP bP/2 3 fo SI 6912 : 1985 ro
Brass edarg BCL 2 fo SI 292 : 1983 ’
krapS paG nroH reirraC ( ees .giF 3 ) od
lanimreT wercS ( ees .giF 4 ) hgiH ytivitcudnoc reppoc gnimrofnoc ot SI 191 ( Parts 1
ot 10 ) : 1980 gnivah muminim elisnet htgnerts fo 300
2mm/N
evitcetorP ebuT ( ees .giF 5 ) Brass ebut as rep SI 407 : 198 1 derevoc htiw drah repap
ebut
tneV gulP ( ees .giF 6 ) Brass ro .reppoc
gnilaeS rehsaW rof metS citehtnyS rebbur gnivah hardness DHRI 70 f 5 fo
( ees .giF 7 ) SI 3400 ( traP 2 ) : 1980
gnilaeS rehsaW ees( .giF 8 ) liO tnatsiser desserpmoc sotsebsa erbit gnitnioj edarg l/O
and htiw elbissimep noitairav B ni ssenkciht as rep
SI 7212 : 1979
rotarapeS ( ees .giF 9 ) liO tnatsiser desserpmoc sotsebsa erbif gnitnioj edarg fo
1’0 htiw elbissimrep noitairav ni ssenkciht B as rep
SI :2172 1979
gnilaeS rehsaW ( ees .giF 10 ) rebbuR ,kroc epyt C edarg RC 70-C fo SI 4253
( traP 2 ) : 1980
teksaG Ring ( ees .giF 11 ) EFTP ro edimaylop
reppU gnikrapS nroH thgirB dnuor rab as rep SI 9550 : 1980, toh pid
( ees .giF 12 ) dezinavlag as rep SI 4759 : 1979
rewoL gnikrapS nroH ( ees .giF 13 ) nroH thgirB dnuor rab as rep SI 9550 : 1980
etalP - leetS st. 42 W fo SI 2062 : 1980
1
SI 3347 ( Part 8/Set 2) : 1992
llahs eb ni ecnadrocca htiw the tnaveler parts of nwohs ni .giF 14.
SI 4218.
6.2 ehT head erutamra ylbmessa for l/25 000 A
ehT snoisnemid dna lairetam ( where deificeps ) of gnihsub si nwohs ni .giF 14.
latem parts dna seirossecca for l/25 000 A llahs
mrofnoc ot those nevig ni .giF 1 ot 14. 6.3 Clamping Arrangements
6 ASSEMBLY ehT- snoisnemid of gnipmalc tnemegnarra llahs eb
ni ecnadrocca htiw SI 4257 (Part 1 ) : 1981.
6.1 ehT ylbmessa of gnihsub for l/25 000 A si
M3Qx
M4Ekl .s
+----- 270 -1
ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb esraoc ssalc fo SI 2102 ( traP 1 ) : 1980.
llA snoisnemid ni .sertemillim
FIG. 1 STEM

0 100 y11>10
R7 - 1 i-----0 60’
RlO 5-
z’
ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb esraoc ssalc fo SI 2102 traP( 1) : 1980.
llA snoisnemid ni .sertemillim
FIG. 2 CAP

2
IS 3347 ( Part 8/See 2) : 1992
ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb coarse ssalc of SI 2102 (Part 1 ) : .0891
llA snoisnemid ni .sertemillim
.GIF 3 KRAPS PAG HORN REIRRAC

2R
d13
ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb coarse ssalc of SI 2102 (Part 1 ) : 1980.
llA snoisnemid ni .sertemillim
.GIF 4 LANIMRET WERCS
3
IS 3347 (Part 8/Set 2) : 1992
HOLES
HARD PAPER
TUBE WOUND
OVER BRASS
TUBE
I
- R2.5
All snoisnemid ni .sertemillim
FIG. 5 IPROTECTION TUBE
------
-7-c

dehsinif-imeS lairetam : dettolS eseehc daeh wercs

AM 8 x15 IS 1366 : 1982
All dimensions in millimetres.
FIG. 6 VENT PLUG
All dimensions in millimetres.
FIG. 7 SEALING WASHER FOR STEM

4
IS 3347 ( Part S/Set 2 ) : 1992
---I 090 ___cI 565--j ---+
ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb esraoc ssalc fo SI 2102 traP( 1 ) : 1980.
llA snoisnemid ni .sertemillim
FIG. 8 SEALINGW ASHER FIG. 9 SEPARATOR
6 THICK

ecnareloT no snoisnemid tuohtiw cificeps secnarelot llahs eb esraoc ssalc fo SI 2102 traP( 1 ) : 1980.
ilA snoisnemid ni .sertemillim
FIG. 10 SEALINGW ASHER- A FIG. 11 GASKET RING