Chequered Plate

INPUT DA

INPUT DATA TA FOR FOR CHEQUERED PLATE DESIGN :CHEQUERED PLATE DESIGN : Case:1 Upper Floors

Case:1 Upper Floors S

Sll..NNoo DDeessccrriippttiioo UUiitt SS!!""##ooll $$aall%%eess

1

1

M

Maax

xiim

mu

um

m

W

Wiid

dtth

h

o

of

f

P

Pllaattee

m

m

B

B

1.230

1.230

2

2

T

Th

hiicck

kn

neesss

s

o

of

f

P

Pllaattee

m

m

tt

0

0..0

00

06

6

3

3

U

Un

niit

t

W

Weeiig

gh

ht

t

o

of

f

S

Stteeeell



!

!.."

"0

0

#

#

$

$i%

i%e

e $

$o

oad

ad &

&on

onsi

side

de'e

'ed

d o%

o%ee'

' &h

&hee(u

(uee'e

'ed

d Pl

Plat

ate

e

"

"

"

"

)

)iieelld

d

S

Stt''eesss

s

o

of

f

S

Stteeeell

ff*

*

2

2

"

"

6

6

)

)o

ou

un

ng

gs

s

M

Mo

od

du

ullu

us

s

o

of

f

sstteeeell

+

+

2

20

00

00

00

00

0

&A'((LOADING CALCULATION: &A'((LOADING CALCULATION:

D

Deessccrriippttiioo EE))pprreessssiioo UUiit t SS!!""##ooll $$aall%%eess

S

Seellf

f

W

Weeiig

gh

ht

t

o

of

f

,

,llaattee

-

-

0

0..0

00

06

6

x

x



!

!.."

"

//

k

k

m

m2

2

0

0..#

#

1

1

$

$ii%

%e

e

$

$o

oaad

d

o

o%

%ee'

'

cch

hee(

(u

uee''eed

d

,

,llaattee

k

k

m

m2

2

P1 P1 55

 Total load on Plate

 Total load on Plate

--





"

"





0

0..#

#

1

1//

k

k

m

m

W

W

"

"..#

#

1

1

D

Deessccrriippttiioo EE))pprreessssiioo UUiit t SS!!""##ooll $$aall%%eess &*' ((*ENDING +O+ENT CALCULATION:

&*' ((*ENDING +O+ENT CALCULATION:

Maximum Bending Moment

Maximum Bending Moment

-

-





"

"..#

#

1

1

x

x

1

1..2

23

3

2

2

/

/





!

!

k

k

..m

m

M

M

1

1..0

03

3"

"

Moment of 4ne'tia

Moment of 4ne'tia

-

- 1

10

00

00

0 x

x 6

6

3

3 /

/ 

 1

12

2

44

1

1!

!0

00

00

0

Section Modulus

Section Modulus

--





1

1!

!0

00

00

0





6

6





2

2

////

5

5

6

60

00

00

0

&C' ((CHEC, FOR *ENDING STRESS: &C' ((CHEC, FOR *ENDING STRESS:

ctual Bending St'ess

ctual Bending St'ess

--

M

M





5

5

-

-

1

1..0

03

3"

"

x

x

1

10

0

6

6/

/





6

60

00

00

0

ffss

1

1

2

2.."

"0

00

0

Pe'missi7le Bending St'ess s ,e' BS "8"091:2000 &lause #.3.!/

Pe'missi7le Bending St'ess s ,e' BS "8"091:2000 &lause #.3.!/

--

0

0..!

!

x

x

ff*

*

-

-

0..!

0

!

x

x

2

2

"

"

2

22

20

0

f7 ; fs

f7 ; fs

HENCE SAFE

HENCE SAFE

km

km

22

_<<

ss

km

km

22

_P

_P

1 1

 mm

 mm

22

km

km

22 P P 2 2

- P

- P

₁₁

 P

 P

₂₂

-  W x B

-  W x B

22

 _{/  !}

 _{/  !}

mm

mm

##

mm

mm

33

 mm

 mm

22

 mm

 mm

22

_f 

_f 

 7  7

&D' ((CHEC, FOR

&D' ((CHEC, FOR DEFLECTION:DEFLECTION:

ctual =eflection

ctual =eflection

--





"

"

x

x

W

W

x

x

B

B

#

#

/

/









3!

3

!#

#

x

x

+

+

x

x

4

4

////

m

mm

m

>

>

0

0..0

0#

#"

"

llo?a7le =eflection s ,e'

llo?a7le =eflection s ,e' BS "8"091:2000 Ta7le !/

BS "8"091:2000 Ta7le !/

--

B

B





2

20

00

0

-

-

1

12

23

30

0





2

20

00

0

m

mm

m

6

6..1

1"

"

>a ; >

>a ; >

HENCE SAFE

HENCE SAFE

-  " x ".#1 x

-  " x ".#1 x 1.23# / 108   3!# x 200000 x

1.23# / 108   3!# x 200000 x

1!000 //

1!000 //

>

>

_aa

INPUT DATA FOR CHEQUERED PLATE DESIGN : Case:- Upper Floors

Sl.No Descriptio Uit S!"#ol $al%es

1

Maximum

Width

of

Plate

m

B

1.230

2

Thickness

of

Plate

m

t

0.00!

3

Unit

Weight

of

Steel

!."0

#

$i%e $oad &onside'ed o%e' &he(ue'ed Plate

20

"

)ield

St'ess

of

Steel

f*

2"

6

)oungs

Modulus

of

steel

+

200000

&A'((LOADING CALCULATION:

Descriptio E)pressio Uit S!"#ol $al%es

Self

Weight

of

,late

-

0.00!

x

!."

/

km2

0.62!

$i%e

$oad

o%e'

che(ue'ed

,late

km2

P1 5

 Total load on Plate

-



"



0.62!/

km

W

".62!

Descriptio E)pressio Uit S!"#ol $al%es

&*' ((*ENDING +O+ENT CALCULATION:

Maximum Bending Moment

-  0.62! x 1.232 /  !" x 1.23/#

k.m

M

1.6"6

Moment of 4ne'tia

- 1000 x !3 /  12

4

#266

Section Modulus

-



#2666.66



!



2

//

5

1066

&C' ((CHEC, FOR *ENDING STRESS:

ctual Bending St'ess

-

M



5

-

1.6"6

x

106/



10666.66

fs

1"".2"0

Pe'missi7le Bending St'ess s ,e' BS "8"091:2000 &lause #.3.!/

-

0.!

x

f*

-

0.!

x

2"

220

f7 ; fs

HENCE SAFE

km

2

_<

s

km

2

_P

1

 mm

2

km

2 P 2

- P

₁

 P

₂

-  P

₂

 x B

2

 _{/  !  P}

1

 @ B/#

mm

#

mm

3

 mm

2

 mm

2

_f 

 7

Note:

1. The Chequered plate is designed for 500kg !hereas rest of the equip"ents loads

shall #e load on $ain % Se&ondar' (ea"s

&D' ((CHEC, FOR DEFLECTION:

ctual =eflection

mm

>

0.02"

llo?a7le =eflection s ,e' BS "8"091:2000 Ta7le !/

-

B



200

-

1230



200

mm

6.1"

>a ; >

HENCE SAFE

!mm thk ,late is 'e(ui'ed fo' "00kg &oncet'ated load

-  " x P2 x B# /   3!# x + x 4 //

 P1 x B3 /   #! x + x 4 //

-  " x 0.62! x 1.23# / 108   3!# x 200000 x

#2666.66 //"x1.233/x108

#!x200000x#2666.66/

>

_a

INPUT DATA FOR CHEQUERED PLATE DESIGN :

Case:- Upper Floors Re/%ce/ t0e i/t0 2ro" 1.-34 to 4.516" ior/er to satis2! t0e 5"" t0ic7

Sl.No Descriptio Uit S!"#ol $al%es

1

Maximum Width of Plate Stiffene' angle shall 7e added at the mid/

m

B

0.61"

2

Thickness

of

Plate

m

t

0.006

3

Unit

Weight

of

Steel

!."0

#

$i%e $oad &onside'ed o%e' &he(ue'ed Plate

20

"

)ield

St'ess

of

Steel

f*

2"

6

)oungs

Modulus

of

steel

+

200000

&A'((LOADING CALCULATION:

Descriptio E)pressio Uit S!"#ol $al%es

Self

Weight

of

,late

-

0.006

x

!."

/

km2

0.#1

$i%e

$oad

o%e'

che(ue'ed

,late

km2

P1 5

 Total load on Plate

-



"



0.#1/

km

W

".#1

Descriptio E)pressio Uit S!"#ol $al%es

&*' ((*ENDING +O+ENT CALCULATION:

Maximum Bending Moment

-  0.#1 x 0.61"2 /  !" x 0.61"/#

k.m

M

0.81

Moment of 4ne'tia

- 1000 x 63 /  12

4

1!000

Section Modulus

-



1!000



6



2

//

5

6000

&C' ((CHEC, FOR *ENDING STRESS:

ctual Bending St'ess

-

M



5

-

0.81

x

106/



6000

fs

131.!33

Pe'missi7le Bending St'ess s ,e' BS "8"091:2000 &lause #.3.!/

-

0.!

x

f*

-

0.!

x

2"

220

f7 ; fs

HENCE SAFE

km

2

_<

s

km

2

_P

1

 mm

2

km

2 P 2

- P

₁

 P

₂

-  P

₂

 x B

2

 _{/  !  P}

1

 @ B/#

mm

#

mm

3

 mm

2

 mm

2

_f 

 7

Note:

1. The Chequered plate is designed for 500kg !hereas rest of the equip"ents loads

shall #e load on $ain % Se&ondar' (ea"s

&D' ((CHEC, FOR DEFLECTION:

ctual =eflection

mm

>

0.00

llo?a7le =eflection s ,e' BS "8"091:2000 Ta7le !/

-

B



200

-

61"



200

mm

3.0!

>a ; >

HENCE SAFE

-  " x P2 x B# /   3!# x + x 4 //

 P1 x B3 /   #! x + x 4 //

-  " x 0.#1 x 0.61"# / 108   3!# x 200000

x 1!000 //"x0.61"3/x108

#!x200000x1!000/

>

_a

INPUT DATA FOR CHEQUERED PLATE DESIGN : Case:- Staita!s

Sl.No Descriptio Uit S!"#ol $al%es

1

Maximum

Width

of

Plate

m

B

1."00

2

Thickness

of

Plate

m

t

0.00!

3

Unit

Weight

of

Steel

!."0

#

$i%e $oad &onside'ed o%e' A'ating

"

"

)ield

St'ess

of

Steel

f*

2"

6

)oungs

Modulus

of

steel

+

200000

&A'((LOADING CALCULATION:

Descriptio E)pressio Uit S!"#ol $al%es

Self

Weight

of

,late

-

0.00!

x

!."

/

km2

0.62!

$i%e

$oad

o%e'

che(ue'ed

,late

km2

P1 5

 Total load on Plate

-



"



0.62!/

km

W

".62!

Descriptio E)pressio Uit S!"#ol $al%es

&*' ((*ENDING +O+ENT CALCULATION:

Maximum Bending Moment

-



".62!

x

1."2

/



!

k.m

M

1."!3

Moment of 4ne'tia

- 1000 x !3 /  12

4

#266

Section Modulus

-



#2666.66



!



2

//

5

1066

&C' ((CHEC, FOR *ENDING STRESS:

ctual Bending St'ess

-

M



5

-

1."!3

x

106/



10666.66

fs

1#!.#06

Pe'missi7le Bending St'ess s ,e' BS "8"091:2000 &lause #.3.!/

-

0.!

x

f*

-

0.!

x

2"

220

f7 ; fs

HENCE SAFE

km

2

_<

s

km

2

_P

1

 mm

2

km

2 P 2

- P

₁

 P

₂

-  W x B

2

 _{/  !}

m

#

mm

3

 mm

2

 mm

2

_f 

 7

&D' ((CHEC, FOR DEFLECTION:

ctual =eflection

-



"

x

W

x

B#

/





3!#

x

+

x

4

//

mm

>

0.0#3

llo?a7le =eflection s ,e' BS "8"091:2000 Ta7le !/

-

B



200

-

1"00



200

mm

."0

>a ; >

HENCE SAFE

-  " x ".62! x 1."# / 108   3!# x 200000 x

#2666.66 //

>

_a

LARSEN & TOUBRO LIMITED

ECC Division - EDRC

 Project: Date:0!0"!#00$

Tit%e : in' Press(re & Sa) Tension Ca%c(%caion

DESI*NED C+EC,ED

Seet O. /

ARA SMP

IND PRESSURE CALCULATIONS AS PER DI DE 0#$0 :

Wind Speed for Conductor/ Earthwire as per MOM Dated 26.05.01 in KM! 150 " #1.6$ in %/sec

Wind Speed for &nsu'ator/(ower )od* as per MOM Dated 26.05.01 in KM! 160 " ##.## in %/sec

+asis Span for Sa, (ension ca'cu'ation as per Schedu'e C2 in M - " #50

 s per D& DE 0210 and their further c'arification dated 2#.11.354 the d*na%ic wind pressure - in (a)'e 5 of D& DE 0210 is arried for a )asic wind speed of 120 K%ph. !ence for a wind speed of 150 K%ph4 the d*na%ic wind pressure in (a)'e 5 is to )e %u'tip'ied )* a factor " -150 / 120 72 " 1.568 in wind pressure ca'cu'ation for Conductor/ Earthwire 9 with a factor "-160/12072 " 1.$$: for &nsu'ator/ (ower)od*.

Wind oad on Conductor/;roundwire as per C'ause :.1.2.1 of D& DE 0210 " Cf <  < d < - :0 =0.6 < 

Wind ressure on Conductor/;roundwire. " Cf <  < - :0 =0.6 <  / 

!ei,ht of ttach%ent point in %  Con'(ctor 0>#0% #0>100%

Dra, Coefficient for Conductor Dia%eter %ore than 15.:0 %% refer (a)'e 6 of D& DE 0210 Cfc " 1.00 1.00

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! c " 0.58 0.6:

D*na%ic Wind ressure for 160 KM! in K,/%2 " - Cfc ? c ? - 160 / 120 72 ? 1000 / 3.:1  " 36.0#$

D*na%ic Wind ressure for 150 KM! in K,/%2 " - Cfc ? c ? - 150 / 120 72 ? 1000 / 3.:1  " 10:.80:

" 120/ 312#10

!ei,ht of ttach%ent point in % *ro(n'4ire #0>100%

Dra, Coefficient for Earthwire Dia%eter %ore than 15.:0 %% refer (a)'e 6 of D& DE 0210 Cfe " 1.00

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! e " 0.6:

D*na%ic Wind ressure for 150 KM! in K,/%2 " - Cfe ? e ? - 150 / 120 72 ? 1000 / 3.:1  " $032/03

Wind ressure On Earthwire in K,/%2 " 312#10

5III6 E77ect o7 Aircra7t arnin) S8ere on te Eart 4ire :

 Increase in 4 in' 8ress(re on eart 4ire '(e to Aircra7t arnin) S8ere :

Dia%eter of Warnin, sphere in M " 0.600 Centre to Centre Spacin, of sphere in M 80

Dia%eter of earthwire in %% 1:.600 Dra, Coefficient for eria' warnin, )a''s 0.#

Wind 'oad on one sphere in Kn " - i / # ? - 0.6 72 ? 0.# ? 0.6: ? 1.568 

Wind 'oad on one sphere in Kn " 0.12

" - 0.12 ? 1000 / - 3.:10 ? 80 ? 0.01:6

" #$29##

(ota' wind pressure on the earth wire inc'udin, the effect " - :#.2# = 21.322

##0 ,v D!c Transission Line .ro Saaa East To Saa S(; Station

DOCUMENT NO :  O$0//2T2TL - Sa)-0$

5I6 in' Press(re On Con'(ctors in ,)!#_:

-Wind ressure on Conductor in K,/%2

5II6 in' Press(re On Eart4ire in ,)!#_:

LARSEN & TOUBRO LIMITED

ECC Division - EDRC

 Project: Date:0!0"!#00$

Tit%e : in' Press(re & Sa) Tension Ca%c(%caion

DESI*NED C+EC,ED

Seet O. /

ARA SMP

##0 ,v D!c Transission Line .ro Saaa East To Saa S(; Station

DOCUMENT NO :  O$0//2T2TL - Sa)-0$

" $0"2$"# 5.or Sa) Tension Ca%c(%ation6

5I6 Increase in 4ei)t o7 eart4ire '(e to Aircra7t arnin) S8ere :

Wei,ht of earthwire in K,/% " 0.:1:

Wei,ht of one sphere in K, " $.200

Wei,ht of r%our @od in K, " 0.520

Euia'ent unit wei,ht of earthwire in K,/% " - 0.:1: = $.2 / 80 = 0.52 / #50  $20<9

56 E77ect o7 S8acer 'a8ers on con'(ctor :

Wei,ht of spacer da%per " 2.#0 = 5A

Ma< Wei,ht of spacer da%per in K, " 2.#0 = -0.05 ? 2.#0 B " 2.520

 era,e centre to centre spacin, of Da%per in M " 80

Wei,ht of conductor in K,/% " 0.6$0

" - 0.6$ = - 2.52 / - 2 ? 80   " 02$#

+ei)t o7 Attacent 8oint in  Ins(%ator   0>#0% #0>100%

Dra, Coefficient for &nsu'ator as per (a)'e 6 of D& DE 0210 Cfi " 1.20 1.20

D*na%ic W ind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! i " 0.$ 0.3

Wind ressure on insu'ator for 160 KM! in K,/%2 " - Cfi ? i ? - 160 / 120 72 ? 1000 / 3.:1  " $<#2##" $9<2$9

+ei)to7To4eBo'=in To4erBo'= 0>#0% #0>100%

Dra, Coefficient Cf is ,ien in the (a)'e 6 of D& DE 0210 for Suare 9 rectan,u'ar towers Cft " 2.:0 2.:0

D*na%ic W ind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! t " 0.$ 0.3

Wind ressure on (ower +od* for 160 KM! in K,/%2 " - Cft ? t ? - 160 / 120 72 ? 1000 / 3.:1  " /<<2$9/ 1<"2"

+ei)to7To4eBo'=in To4erBo'= 0>#0% #0>100%

Dra, Coefficient Cf is ,ien in the (a)'e 6 of D& DE 0210 for Suare 9 rectan,u'ar towers Cft " 2.:0 2.:0

 s per C'.no :.2.1.2 aerod*na%ica' dra, coefficient is to )e increased )* 10 A " -Cfdw " 2.:=10/100 ? 2.: " 8.0: 8.0:

D*na%ic W ind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! dw " 0.$ 0.3

 n,'e of &ncidence of wind in de, " #5 #5

of warnin, sphere in K,/%2 _{.or 1<0 M S8an}

Euia'ent wei,ht of conductor inc'udin, the wei,ht of spacer da%pers in K,/%

5I6 in' Press(re On Ins(%ator in ,)!#_:

-5II6 in' Press(re On To4er Bo'= in ,)!#_:

-LARSEN & TOUBRO LIMITED

ECC Division - EDRC

 Project: Date:0!0"!#00$

Tit%e : in' Press(re & Sa) Tension Ca%c(%caion

DESI*NED C+EC,ED

Seet O. /

ARA SMP

##0 ,v D!c Transission Line .ro Saaa East To Saa S(; Station

DOCUMENT NO :  O$0//2T2TL - Sa)-0$

Cfdw?dw?- 160/120 72 ?1000/3.:1?Cos-#5 " #"2#< /<<2#$$

BASIC SPAN .OR SA* TENSION CALCULATION : 1<0 M

DESCRIPTION CONDUCTOR *ROUNDIRE

a%e/Code C D@E O..;.W FGOCSF

Strandin, 'u%iniu% 9 Stee' 61/ 2.25 82 Gi)res

Dia%eterinMM 20.200 1:.600

Hnit Wei,ht -K, / % 5 > > 6 02$# 5 ? ? 6 $20<9

H'ti%ateStren,thinK, 6310 111$8

2#2.5 13#.0:

563$ 1022$

Mini%u%(e%perature 5IC 5IC

Eer*da*(e%perature 85IC 85IC

Ma<i%u%(e%perature :0IC :0IC

5> > 6 ei)t o7 S8acer Da8er A''e' to con'(ctor 

S' o

Conductor Earthwire

1 85I 9 i' wind 0 $$#"200 16.006 6.18$ $3/12/0 6.031

2 5I 9 i' Wind 0 12#8.00 1#.#33 5.553 1336.11 18.#23 5.53$

8 :0I 9 i' wind 0 335.$0 5@6 $32$00 6.3#0 16#5.23 16.232 6.$31

# #0I 9 i' wind 0 1103.2 16.2#: 6.280 1:10.#3 1#.:06 6.1$1

5 $#.$08 #<#$230 16.$52 2.$#0 >>>> >>>> >>>>

6 53.$62 #$902<0 16.1:3 8.155 >>>> >>>> >>>>

$ :#.2#0 #/#2$0 1$.03# 2.523 >>>> >>>> >>>>

: 6$.832 #/<92"0 16.#$$ 2.32: >>>> >>>> >>>>

$ 106.162 >>>> >>>> >>>> /"/21$ 15.535 8.0$2

Wind ressure tower in K,/%2 _{-&n (rans. 9 on,.Gace "}

Cross Sectiona' rea in -%%2_

Coefficient of inear E<pansion - / IC 28 < 10>6 _{1$.8 < 10}>6

Gina' Modu'us of E'asticit* in K, /%%2

5? ? 6 ei)t o7 arnin) S8ere an' aror ro' a''e' to  O2P2*2 Co%)ination of (e%perature 9 Wind Wind ressure in K,/%2 (ension in K, Sa, in M Gactor of Safet* (ension in K, Sa, in M Gactor of Safet* 5@6 1#.61# 5I 9 Gu'' wind -Gor conductors 'ess

than #0 % 5I 9 Dia,ona' wind -Gor conductors 'ess

than #0 % 5I 9 Gu'' wind -Gor conductors %ore than #0 % 5I 9 Dia,ona' wind -Gor conductors %ore than #0 % 5I 9 Gu'' wind -Gor ,roundwire %ore than #0 %

LARSEN & TOUBRO LIMITED

ECC Division - EDRC

 Project: Date:0!0"!#00$

Tit%e : in' Press(re & Sa) Tension Ca%c(%caion

DESI*NED C+EC,ED

Seet O. /

ARA SMP

##0 ,v D!c Transission Line .ro Saaa East To Saa S(; Station

DOCUMENT NO :  O$0//2T2TL - Sa)-0$

: :#.380 >>>> >>>> >>>> /$992<$ 15.083 8.#32

5@6 Re7ers Initia% Con'ition .or Con'(ctor an' *ro(n'4ire

5I 9 Dia,ona' wind -Gor Earthwier %ore

LARSEN & TOUBRO LIMITED

ECC DIISION - EDRC

Project: Date:

Tit%e :

Desi)ne' Cece'

Seet

Ara S8

IND PRESSURE CALCULATIONS AS PER DI DE 0#$0 :

Wind Speed for Conductor4Earthwire4&nsu'ator9(ower )od* in KM! 160 " ##.## in %/s

+asis Span for Sa, (ension ca'cu'ation as per Schedu'e C2 in M - " #50

 s per D& DE 0210 and their further c'arification dated 2#.11.354 the d*na%ic wind pressure - in (a)'e 5 of D& DE 0210 is arrie a )asic wind speed of 120 K%ph. !ence for a wind speed of 160 K%ph4 the d*na%ic wind pressure in (a)'e 5 is to )e %u'tip'ied )* a fa " -160 / 120 72 " 1.$$: in wind pressure ca'cu'ation for Conductor4Earthwire4&nsu'ator 9(ower)od*.

Wind oad on Conductor/;roundwire as per C'ause :.1.2.1 of D& DE 0210 " Cf <  < d < - :0 =0.6 < 

Wind ressure on Conductor/;roundwire. " Cf <  < - :0 =0.6 <  / 

!ei,ht of ttach%ent point in %  Con'(ctor 0>#0%

Dra, Coefficient for Conductor Dia%eter %ore than 15.:0 %% refer (a)'e 6 of D& DE 0210 Cfc " 1.00

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! c " 0.58

D*na%ic Wind ressure for 160 KM! in K,/%2 " - Cfc ? c ? - 160 / 120 72 ? 1000 / 3.:1  " 36.0#$

D*na%ic Wind ressure for 160 KM! in K,/%2 " - Cfc ? c ? - 160 / 120 72 ? 1000 / 3.:1  "

" 120/

!ei,ht of ttach%ent point in % *ro(n'4ire #0

Dra, Coefficient for Earthwire Dia%eter %ore than 15.:0 %% refer (a)'e 6 of D& DE 0210 Cfe "

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! e "

D*na%ic Wind ressure for 160 KM! in K,/%2 " - Cfe ? e ? - 160 / 120 72 ? 1000 / 3.:1  " $#

Wind ressure On Earthwire in K,/%2 " 9

5III6 E77ect o7 Aircra7t arnin) S8ere on te Eart 4ire :

 Increase in 4in' 8ress(re on eart 4ire '(e to Aircra7t arnin) S8ere :

Dia%eter of Warnin, sphere in M " 0.600 Centre to Centre Spacin, of sphere in M 80

Dia%eter of earthwire in %% 1:.600 Dra, Coefficient for eria' warnin, )a''s 0.#

Wind 'oad on one sphere in Kn " - i / # ? - 0.6 72 ? 0.# ? 0.6: ? 1.$$: 

Wind 'oad on one sphere in Kn " 0.18$

" - 0.18$ ? 1000 / - 3.:10 ? 80 ? 0.01:6

" #<20#

(ota' wind pressure on the earth wire inc'udin, the effect " - 35.:#6 = 25.02$

100!##0 ,v D!c Transission Line .ro A% Ain So(t4est to A;( Da;i

Doc(ent No : T$$<2T2TL - Sa)-0#

in' Press(re & Sa) Tension Ca%c(%caion 5.or ##0 v Lines6

5I6 in' Press(re On Con'(ctors in ,)!#_:

-Wind ressure on Conductor in K,/%2

5II6 in' Press(re On Eart4ire in ,)!#_:

LARSEN & TOUBRO LIMITED

ECC DIISION - EDRC

Project: Date:

Tit%e :

Desi)ne' Cece'

Seet

Ara S8

100!##0 ,v D!c Transission Line .ro A% Ain So(t4est to A;( Da;i

Doc(ent No : T$$<2T2TL - Sa)-0#

in' Press(re & Sa) Tension Ca%c(%caion 5.or ##0 v Lines6

" $#023/ 5.or Sa) Tension Ca%c(%ation6

5I6 Increase in 4ei)t o7 eart4ire '(e to Aircra7t arnin) S8ere :

Wei,ht of earthwire in K,/% " 0.:1:

Wei,ht of one sphere in K, " $.200

Wei,ht of r%our @od in K, " 0.520

Euia'ent unit wei,ht of earthwire in K,/% " - 0.:1: = $.2 / 80 = 0.52 / #50  $20<9

56 E77ect o7 S8acer 'a8ers on con'(ctor :

Wei,ht of spacer da%per " 2.#0 = 5A

Ma< Wei,ht of spacer da%per in K, " 2.#0 = -0.05 ? 2.#0 B " 2.520

 era,e centre to centre spacin, of Da%per in M -ssu%ed " 80

Wei,ht of conductor in K,/% " 1.0:5

o. of conductors per phase " 2 nos

" - 1.0:5 = - 2.52 / - 80 ? 2   " $2$#

+ei)t o7 Attacent 8oint in  Ins(%ator   0>#0%

Dra, Coefficient for &nsu'ator as per (a)'e 6 of D& DE 0210 Cfi " 1.20

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! i " 0.$

Wind ressure on insu'ator for 160 KM! in K,/%2 " - Cfi ? i ? - 160 / 120 72 ? 1000 / 3.:1  " $<#2##"

+ei)to7To4eBo'=in To4erBo'= 0>#0%

Dra, Coefficient Cf is ,ien in the (a)'e 6 of D& DE 0210 for Suare 9 rectan,u'ar towers Cft " 2.:0

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! t " 0.$

Wind ressure on (ower +od* for 160 KM! in K,/%2 " - Cft ? t ? - 160 / 120 72 ? 1000 / 3.:1  " /<<2$9/

+ei)to7To4eBo'=in To4erBo'= 0>#0%

Dra, Coefficient Cf is ,ien in the (a)'e 6 of D& DE 0210 for Suare 9 rectan,u'ar towers Cft " 2.:0

 s per C'.no :.2.1.2 aerod*na%ica' dra, coefficient is to )e increased )* 10 A " -Cfdw " 2.:=10/100 ? 2.: " 8.0:

D*na%ic Wind ressure s er (a)'e > 5 of D& DE 0210 in Kn/%2 for 120 KM! dw " 0.$

of warnin, sphere in K,/%2_.

Euia'ent wei,ht of conductor inc'udin, the wei,ht of spacer da%pers in K,/%

5I6 in' Press(re On Ins(%ator in ,)!#_:

-5II6 in' Press(re On To4er Bo'= in ,)!#_:

-LARSEN & TOUBRO LIMITED

ECC DIISION - EDRC

Project: Date:

Tit%e :

Desi)ne' Cece'

Seet

Ara S8

100!##0 ,v D!c Transission Line .ro A% Ain So(t4est to A;( Da;i

Doc(ent No : T$$<2T2TL - Sa)-0#

in' Press(re & Sa) Tension Ca%c(%caion 5.or ##0 v Lines6

 n,'e of &ncidence of wind in de, " #5

Cfdw?dw?- 160/120 72 ?1000/3.:1?Cos-#5 " #"2#<

BASIC SPAN .OR SA* TENSION CALCULATION : 1<0 M

DESCRIPTION CONDUCTOR *ROUNDIR

a%e / Code /'C'ad Stee' O..;.W F GOC

Strandin, 'u%iniu% 9 Stee' 26/8.$2 4 $/2.:3 82 Gi)res

Dia%eterinMM 28.550 1:.600

Hnit Wei,ht -K, / % 5 > > 6 $2$# 5 ? ? 6 $20<9

H'ti%ateStren,thinK, 3330 111$8

82:.52 13#.0:

$$2$ 1022$

Mini%u%(e%perature 5IC 5IC

Eer*da*(e%perature 85IC 85IC

Ma<i%u%(e%perature :0IC :0IC

5> > 6 ei)t o7 S8acer Da8er A''e' to con'(ctor 

S' o

Conductor Earthwire

1 85I 9 i' wind 0 $932#0 -J 15.:65 5.556 1$$0.80 15.1#2

2 60I 9 i' wind 0 16:6.10 16.321 5.325 166:.21 16.063

8 :0I 9 i' wind 0 160:.01 1$.$80 6.218 153$.10 16.$:6

# $#.$08 ///$2<0 15.:$2 2.333 >>>> >>>>

5 53.$62 #91/2"0 15.50# 8.83# >>>> >>>>

6 35.:#6 /391230 16.83$ 2.565 >>>> >>>>

$ $6.6$$ //3/20 15.326 2.352 >>>> >>>>

: 120.:$8 >>>> >>>> >>>> /3/"2#$ -J 16.83$

Wind ressure tower in K,/%2 _{-&n (rans. 9 on,.Gace "}

Cross Sectiona' rea in -%%2_

Coefficient of inear E<pansion - / IC 20.0 < 10>6 _{1$.8 < 10}>6

Gina' Modu'us of E'asticit* in K, /%%2

5? ? 6 ei)t o7 arnin) S8ere an' aror ro' O2P2*22 Co%)ination of (e%perature 9 Wind Wind ressure in K,/%2 (ension in K, Sa, in M Gactor of Safet* (ension in K, Sa, in M

5I> Gu'' wind -Gor conductors 'ess than #0 % 5I> Dia,ona' wind

-Gor conductors 'ess than #0 % 5I 9 Gu'' wind -Gor conductors %ore than #0 % 5I> Dia,ona' wind

-Gor conductors %ore than #0 % 5I > Gu'' wind -Gor ,roundwire %ore than #0 %

LARSEN & TOUBRO LIMITED

ECC DIISION - EDRC

Project: Date:

Tit%e :

Desi)ne' Cece'

Seet

Ara S8

100!##0 ,v D!c Transission Line .ro A% Ain So(t4est to A;( Da;i

Doc(ent No : T$$<2T2TL - Sa)-0#

in' Press(re & Sa) Tension Ca%c(%caion 5.or ##0 v Lines6

3 36.63: >>>> >>>> >>>> //1$2"$ 15.:1$

5@6 Re7ers Initia% Con'ition .or Con'(ctor an' *ro(n'4ire

5I > Dia,ona' wind -Gor ,roundwire %ore than #0 %

!0!#00$ O. / ec   for ctor #0>100% 1.00 0.6: 128.280 9<231" >100% .00 .6: /2#/0 231"

!0!#00$ O. / #0>100% 1.20 0.3 $9<2$9 #0>100% 2.:0 0.3 1<"2" #0>100% 2.:0 8.0: 0.3

!0!#00$ O. / #5 /<<2#$$ S F 6.811 6.63: 6.336 >>>> >>>> >>>> >>>> 2.318 ''e' to Gactor of Safet*

!0!#00$

O. /