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Sag & Vertical Clearance with ref. to 30 deg. C at DFC
Track-1
Description
Sag in meter 1.77 2.54 1.27
0 0.77 -0.5
19.263 18.493 19.763
ag & Vertical Clearance with ref. to 32.2 deg. C at DFC
Track-
Description
Sag in meter 1.77 2.5 1.24
0 0.73 -0.53
19.263 18.533 19.793
Sag at 32 deg
C, initial temp 30degC
Sag at 75 deg
C, initial temp 30degC
Sag at !-" 2.5
deg C, initialtemp 30degC
Di#erence in Sag $it%respect to 30 deg. C
&ertical Clearance in'eter (rom D)C trac*
1 !Distance 90.337meter (rom to$er no. -
31
Sag at 30 degC, initial temp
32degC
Sag at 75 degC, initial temp
32degC
Sag at !-"2.5deg C, initialtemp 32degC
Di#erence in Sag $it%respect to 30 deg. C&ertical Clearance
in'eter (rom D)C trac*
1 !Distance 90.337meter (rom to$er no. -
31"
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Annexure: Particulars required for overhead Crossing
S. No. Attributes Unit1 Code of Conductor ACSR panther 2 Size
30/3 mm Al./ steel 7/3.00mm dia3 Overall ia mm 21! Area mm2 2"1.##
$nit %t of Conductor &'/m 0.(7!" $ltimate tensile stren'hth
&' (1!!7 Coeff of )inear *+pansion per de' C 0.00001(3
, -oun' s modulus &'/mm2 7,70( Crossin' Span m 2!#
10 a+. emp. de'C 3211 in. emp. de'C 012 a+ Sa' at 7# de' c at
normal span m 7.#(213 Crossin' Span m 2451! in. sa' at 2.#de'C at
normal span m !.7#1# OS 21" OS at 32.2 de'C !17 ind 4resssure
&'/m2 !#1, ind )oad per metre 5 h6 &'/m 0."30
Condition Sag at !deg C" full #ind $ %&S' 41( *ffective
%ei'ht of conductor 5 r6 &' / m 1.1"
20 a+. %or&in' ension5 16 &' 22,"21 Sa'5s6 m (.)
Condition 222 nitial %or&in' ension5 16 &' 22,"23
*ffective )oadin'5%18%16 &'/ m 1.3!"2! * 5!2.+,2# - 2, .!2
hen %ind is still5 h906: so %29%c 0.(7!2" C 4))2 )(+!,.5,27 /
7",.3#2, 0ension 102 &' 4,5.2+2( Sag at (2 deg C m 4. 5
Condition (30 0e3 erature diff.1(2 (! de'C 231 or&in'
ension5 16 &' 22,"32 * (5 .+!33 - , .43! C !,,2(,3"0,3#
0ension102 &' 2242.)55+3" Sag at 1(2 (! degC m (.25)37
!" height difference bet#een to#ers m 4.!5!7 %or our s an of
2453
#7 )1 m )4.4(#, )2 m +!.5,#( Sa' at )1 m .55"0 Sa' at )2 m
5.+!"1 Sa' at )3 5((.",m6 *+istin' rac& m 2. +"2 Sa' at )!
5#(.1m6 RAS rac& m !.,+"3 Sa' at )# 5"7.#m6 C rac& " 5near
to to%er no. 316 !."! Sag at 6+ 1 !.((,3 7%C 0rac8 ! 1near to to#er
no. ( m .,,
Sag at (2 deg C" initial te3 !degC"No #ind $ %&S' 4
Sag at (! deg C" No #ind $ %&S' 4"initial te3 ' (2degC
S a g a
t ( ! d e g
C "
i n i t i a l t e 3 4
'
( 2 d e g
C
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Annexure: Particulars required for overhead Crossing
S. No. Attributes Unit1 Code of Conductor ACSR panther 2 Size
30/3 mm Al./ steel 7/3.00mm dia3 Overall ia mm 21! Area mm2 2"1.##
$nit %t of Conductor &'/m 0.(7!" $ltimate tensile stren'hth
&' (1!!7 Coeff of )inear *+pansion per de' C 0.00001(3
, -oun' s modulus &'/mm2 7,70( Crossin' Span m 2!#
10 a+. emp. de'C 7#11 in. emp. de'C 2.#12 a+ Sa' at 7# de' c at
normal span m 7.#(213 Crossin' Span m 2451! in. sa' at 2.#de'C at
normal span m !.7#1# OS 21" OS at 32.2 de'C !17 ind 4resssure
&'/m2 !#1, ind )oad per metre 5 h6 &'/m 0."30
Condition Sag at !deg C" full #ind $ %&S' 41( *ffective
%ei'ht of conductor 5 r6 &' / m 1.1"20 a+. %or&in' ension5
16 &' 22,"
21 Sa'5s6 m (.)
Condition 222 nitial %or&in' ension5 16 &' 22,"23
*ffective )oadin'5%18%16 &'/ m 1.3!"2! * 5!2.+,2# - 2 ,). +
hen %ind is still5 h906: so %29%c 0.(7!2" C 4))2 )(+!,.5,27 /
2!7".2(2, 0ension 102 &' 52( Sag at ,5 deg C m +.(
Condition (30 0e3 erature diff.1,5 (! de'C 4531 or&in'
ension5 16 &' 22,"32 * (5 .+!33 - ,),.43! C !,,2(,3"0,3#
0ension102 &' 5+(3" Sag at 1,5 (2.2 degC m 4.+,+37
Condition 43, 0e3 erature diff.1 2.5 (2.2 de'C (2.53( or&in'
ension5 16 &' 22,"!0 * (5 .+!!1 - 2 !.))!2 C !,,2(,3"07.#""02!3
0ension102 &' ( ()!! Sag at 2.5 degC m 2.((
!" height difference bet#een to#ers m 4.!5!7 %or our s an of
2453!, )1 m 5. ,!( )2 m 4 .!(#0 Sa' at )1 m 2.),#1 Sa' at )2 m +.
2#2 Sa' at )3 5((.",m6 *+istin' rac& m (.! +#3 Sa' at )!
5#(.1m6 RAS rac& m .!))#! Sa' at )# 5"7.#m6 C rac& " 5near
to to%er no. 316 .42#" Sag at 6+ 1 !.((,3 7%C 0rac8 ! 1near to
to#er no. ( m 2.54#7 )1 m + .24#, )2 m ,5.,+#( Sa' at )1 m !.,4"0
Sa' at )2 m 4.,"1 Sa' at )3 5((.",m6 *+istin' rac& m .54"2 Sa'
at )! 5#(.1m6 RAS rac& m !.54"3 Sa' at )# 5"7.#m6 C rac& "
5near to to%er no. 316 !.,"! Sag at 6+ 1 !.((,3 7%C 0rac8 ! 1near
to to#er no. ( m .2,
Sag at ,5deg C" initial te3 !degC"No #ind $ %&S' 4
Sag at ,5deg C" No #ind $ %&S' 4"initial te3 ' (!degC
Sag at 2.5 deg C" No #ind $ %&S' 4"initial te3 ' (!degC
S a g a
t , 5 d e g
C "
i n i t i a l t e 3 4
'
( ! d e g
C
S a g a
t 2 . 5
d e g
C "
i n i t i a l t e 3
4
'
( ! d e g C
