TCE CONSULTING ENGINEERS LIMITED DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
30421007-3CL-00021-
SHEET OF i i OF
4
1
SAUDI ELECTRICITY COMPANY
2
EASTERN OPERATING AREA Dammam, Saudi Arabia
3 4 5 6 7
GENERATION EXPANSION OF ARAR POWER PLANT (CONTRACT NO !"#$%""&'""
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DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
12 13
DOCUMENT NO) !"#$%""&*!CL*"""$%*P"B !"#$%""&*!CL*"""$%*P"B
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+ANUARY, $""
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18 19 20 21 22 23
ENGINEERING CONSULTANT TCE CONSULTING ENGINEERS LIMITED &!'%, ST) MAR-.S ROAD BANGALORE /" ""% INDIA
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CONTRACTOR
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AL*TOU-HI COMPANY FOR INDUSTRY 0 TRADING
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P)O) P)O) BOX #1&, RIYADH RIYADH %%#%%, -INGDOM OF SAUDI ARABIA TEL) ""1//*%*#/!!//" FAX) ""1//*%*#/!%%"
28 29 30 31 32
P0B 13.01.2005
MP
SR
P0A 20.11.2004
MP
SR
REV NO . DATE
PREPARED BY
CHECKED BY
2
CLEARED BY
APPROVED BY TCE FORM 032 R1
TCE CONSULTING ENGINEERS LIMITED 30421007-3CL-00021-
CONTENTS
DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
SHEET 1 OF 8 OF
4
CONTENTS
CLAUSE No.
DESCRIPTION
PAGE No.
1.0
Int!"#$t%!n
2
2.0
R&'&&n$& "()%n*+ , D!$#&nt+
3
3.0
D&+%*n B(+%+
4
4.0
C!n+%"&&" #%/"%n*+ (n" St#$t#&+
5.0
L%*tn%n* P!t&$t%!n C!n"#$t! D&t(%/+
.0
C!n$/#+%!n
ANNEXURES 7.0
Ann&#&-1-L%*tn%n* P!t&$t%!n S+t& C(/$#/(t%!n+.
ISSUE P0B
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TCE FORM 032 R1
TCE CONSULTING ENGINEERS LIMITED 30421007-3CL-00021-
331.0
DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
CONTENTS SHEET 2 OF 8 OF
4
INTRODUCTION:
34 35 361.1 37 38 39
A/-T!#% $!6(n '! In"#+t T("%n* (+ &&n ()("&" t#n& $!nt($t '! O6&n C$/& 8(+ T#%n& (+&" CPS &6(n+%!n 6!9&$t (t A( !' S(#"% E/&$t%$ C!6(n-E(+t&n O6&(t%!n A&( :SEC-EOA;< S(#"% A(%(.
40 411.2 42 43 44 45
T& 6!9&$t $!n+%+t+ !' "&+%*n< &n*%n&&%n*< 6!$#&&nt< %n+t(//(t%!n< t&+t%n* (n" $!%++%!n%n* !' t)! :2; N!+. 0.1M= > 50°C< P87121 :EA; !"&/ 8(+ T#%n& 8&n&(t! #n%t !' 8E (& (/!n* )%t (++!$%(t&" 8&n&(t! T(n+'!& (n" !t& (/(n$& !' 6/(nt &/&$t!-&$(n%$(/ &?#%6&nt.
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
6
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DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
CONTENTS SHEET 3 OF 8
4
OF
REFERENCE DRAWINGS/DOCUMENTS
77 78 792.1
BS 51-P!t&$t%!n !' +t#$t#&+ (*(%n+t /%*tn%n*
80 812.2
S$!6& !' =! (n" T&$n%$(/ S6&$%'%$(t%!n+. PTS-1022.
82 832.3
8&n&(/ +%t& L(!#t. D)* N!@KA 712
84 852.4
NFPA 70- St(n"(" '! %n+t(//(t%!n !' /%*tn%n* 6!t&$t%!n ++t&+.
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116
8
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30421007-3CL-00021-
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CONTENTS SHEET 4 OF 8 OF
4
DESIGN BASIS
118 1193.1 120 121
T& "&+%*n !' L%*tn%n* 6!t&$t%!n ++t&+ :LPS; '! "%''&&nt +t#$t#&+ 6&+&nt %n t& 6/(nt (& (+&" !n !&(// %+ '($t! (+ 6& t& 6!$&"#& %n"%$(t&" %n t& BS-51 +t(n"(".
122 1233.2 124
T& n#& !' t#n"&+t! "(+ 6& &( %+ 15 (+ 6& PTS-1022 !' 6(*& 70 !' 33.
125 1263.3
E+t%(t%!n !' O&(// R%+ %n"&.
127 128 129 130
T& 6!(%/%t !' St#$t#& ! #%/"%n* &%n* +t#$ /%*tn%n* %n (n !n& &( %+ t& 6!"#$t !' L%*tn%n* F/(+ D&n+%t (n" E''&$t%& $!//&$t%!n A&( !' t& St#$t#& t! & 6!t&$t&"
131 132
P N* A$ 10- -------- E?#(t%!n (+ 6& C/
[email protected] !' BS-51.
133 134
=&&<
135 136
P
P!(/& n#& !' +t%&+,&( :R%+;
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L%*tn%n* F/(+ D&n+%t< %.&. t& n#& !' '/(+&+ t! 8!#n" 6& K2 6& &(.
A$
E''&$t%& C!//&$t%!n A&( !' t& St#$t#& ! #%/"%n*.
137 138 139 140 141 142 143 1443.4 145 146
T& &+t(/%+&" (/#& !' t& 6!(/& n#& !' +t%&+ t! t& +t#$t#& 6& &( P< #/t%6/%&" )&%*%n* '($t!+ !' A t! E *%&+ t& O&(// R%+ '($t!.
147 1483.5 149
BS-51 &$!&n"+ t(t t& '!//!)%n* )&%*%n* '($t!+ A t! E %"& T(/&+ t! 12< 6(*& 15 1.
150 151 152 153
(; ; $;
=&%*%n* F($t! A =&%*%n* F($t! B =&%*%n* F($t! C -
154 155
10
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ISSUE P0B
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30421007-3CL-00021-
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&;
=&%*%n* F($t! E -
CONTENTS SHEET 5 OF 8 OF
4
T6& !' $!#nt :T(/&-12;.
157 1583. 159
T& E''&$t%& $!//&$t%!n (&( !' t& +t#$t#& ! #%/"%n* +(// & $(/$#/(t&" (+ 6& C/.N!.10.2 !' BS-51.
160 161
A$
L= G 2LH G 2=H G πH2
162 163 164 165 166
=&&< L = H
L&n*t !' t& #%/"%n* %n &t&. =%"t !' t& #%/"%n* %n &t&. H&%*t !' t& #%/"%n* %n &t&.
167 1683.7 169
T(/&- !' BS 51< 6(*& 13 *%&+ t& (/#& !' N* /%*tn%n* '/(+&+ 6& 2 6& &( $!&+6!n"%n* t! t#n"&+t! "(+ 6& &(.
170 1713. 172
T& S#**&+t&" ($$&6t(/& %+ (+ &&n t(&n (+ 10-5 6& &(< %.&.1 %n 100000 6& &( (+ 6& C/.N! 10.4 !' BS 51 6(*& 13.
173 1743. 175
T& (/#& !' !&(// R%+ '($t! +!#/" & $!6(&" )%t t& ($$&6t(/& %+< )%$ %+ 10-5.
176 1773.10 178
I' t& V(/#& !' O&(// %+ '($t! %+ /&++ t(n 10-5< t&n L%*tn%n* 6!t&$t%!n '! t& +t#$t#& %+ n!t &?#%&".
179 1803.11 181
I' t& V(/#& !' O&(// %+ '($t! %+ *&(t& t(n 10-4 < t&n L%*tn%n* 6!t&$t%!n %+ &?#%&".
182 1833.12 184
L%*tn%n* 6!t&$t%!n '! (// t& &t(//%$ +t&&/ +t#$t#&+ (& &&n '!//!)&" (+ 6& C/.N! .1 !' PTS-1022 6(*& 245 !' 33.
185 186 187 188 189 190 191 192 193 194 195
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CONTENTS SHEET 6 OF 8 OF
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196 1974.0
CONSIDERED BUILDINGS AND STRUCTURES.
198 199
4.1
200
T& '!//!)%n* #%/"%n*+ ! +t#$t#&+ !' A( P!)& P/(nt (& &&n $!n+%"&&" '! t& L%*tn%n* P!t&$t%!n S+t&.
201
(; ; $; "; &; '; *; ; %; 9; ;
202 203 204 205 206 207 208 209 210 211 212
M(%n S)%t$*&( B#%/"%n* 8T8 #%/"%n* Att&n"(nt R!! F#&/ F!)("%n* 6#6 +&"< DFO #n/!("%n* 6#6 +&". DFO +t!(*& t(n E(#+t +t($. F%n F(n $!!/& F#&/ '%/t&(t%!n +%" C!!/%n* =(t& +%". A% C!6&++! +&"
213 214 215
4.2
216 217
T& L%*tn%n* P!t&$t%!n S+t& $(/$#/(t%!n (/!n* )%t &$!&n"(t%!n '! t& (!& +(%" #%/"%n*+ ! +t#$t#& (& &&n $!6%/&" %n ANNERE-1. Att($&".
218 219 2205.0
LIGHTNING PROTECTION CONDUCTOR DETAILS:
221 222 223
T& '!//!)%n* L%*tn%n* 6!t&$t%!n (t&%(/,+%&+ (& 6!6!+&" t! & #+&" In ($$!"(n$& )%t C/.N!@.0 !' BS-51 T(/&-4.
224 2255.1
M!" S#!$%&'() B*!+,!"' -
226 227 228 229 230
H!%!nt(/ &+ )%t (& C!66& t(6& !' +%& 25 1.5 :F#+& C(t. J TC-025; ! &?#%(/&nt ((n*&" %n +#$ ( )( t(t n! 6(t !' t& !!' %+ !& t(n 5M '! t& n&(&+t !%!nt(/ $!n"#$t!.
231 232 233 234 235 236 237
14
-
D!)n C!n"#$t!+< !n& '! && 20 !' 6&%&t& )%t t(6& !' +%& 25 1.5 :F#+& C(t. J TC-025; ! &?#%(/&nt< )%t &($ "!)n $!n"#$t! t&%n(t&" !nt! ( 15 "%(< 2500 /!n* *!#n" !".
ISSUE P0B
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DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
CONTENTS SHEET 7 OF 8 OF
4
238
F! && "!)n $!n"#$t!< !n& T&+t $/(6 : F#+& C(t J CT 305 ! &?#%(/&nt; +(// & %n+t(//&".
239 240 241 242 243
-
A/+! !n& N!. !' T(6& P!%nt&" A% R!"< 1 &t& %*< : F#+& C(t J RA 225; +(// & %n+t(//&".
-
H!%!nt(/ &+ )%t (& C!66& t(6& !' +%& 25 1.5 :F#+& C(t. J TC-025; ! &?#%(/&nt ((n*&" %n +#$ ( )( t(t n! 6(t !' t& !!' %+ !& t(n 5M '! t& n&(&+t !%!nt(/ $!n"#$t!.
-
D!)n C!n"#$t!+< !n& '! && 20 !' 6&%&t& )%t t(6& !' +%& 25 1.5 :F#+& C(t. J TC-025; ! &?#%(/&nt< )%t &($ "!)n $!n"#$t! t&%n(t&" !nt! ( 15 "%(< 2500 /!n* *!#n" !".
244 245 246 2475.2
A$$(","$ Roo
248 249 250 251 252 253 254 255 256 257 258 259 260
F! && "!)n $!n"#$t!< !n& T&+t $/(6 : F#+& C(t J CT 305 ! &?#%(/&nt; +(// & %n+t(//&".
261 262 263 264 265 266 267
-
A/+! !n& N!. !' T(6& P!%nt&" A% R!"< 1 &t& %*< : F#+& C(t J RA 225; +(// & %n+t(//&".
268 269 270 2715.3 272 273
GTG B*!+,!"'/E&*$ $%/DFO S$o)'( T"/F*(+ Fo)#),!"' P* S&(,/ F*(+ *"+o,!"' P* &(, / F*(+ F!+$)$!o" S!, / Coo+!"' #$() !,/A!) %o)(o) &(,/F!" F" %oo+!"'
274 275 276 277
N! +&6((t& L%*tn%n* P!t&$t%!n *%" )%t !%!nt(/,&t%$(/ $!n"#$t!+ (& &?#%&" '! t& (!& +t#$t#&+< +%n$& t& (!& (& 6!%"&" )%t &t(//%$ '(& +t#$t#&+.
278 279 280 281 282
16
A// t&+& &t(//%$ +t#$t#&+ /%& +t&&/ $!/#n+< 6(n&/ !!' (n" &t(//%$ &n$/!+#&+ )!#/" & &''&$t%&/ *!#n"&" (t t& (+& !' t& +t#$t#&+ (t %n%# t)! 6!%nt+ t! t& *!#n"%n* *%".
ISSUE P0B
TCE FORM 032 R1
TCE CONSULTING ENGINEERS LIMITED 30421007-3CL-00021-
DESIGN BASIS REPORT FOR LIGHTNING AND SHIELDING SYSTEM
CONTENTS SHEET 8 OF 8 OF
4
283 284.0
CONCLUSION.
285 286.1 287 288
T& +t#$t#&+ t(t $!6!+& t& A( P!)& P/(nt (& !+t/ +&/' 6!t&$t&" +%n$& t& (& ("& !' +t&&/ )!+ &$&6t M(%n S)%t$*&( #%/"%n* (n" Att&n"(nt R!!.
289 290 291
A// t& +t&&/ +t#$t#&+ )!#/" & $!nn&$t&" t! t& 6%( *!#n"%n* ++t&.
292 293 294.2 295 296
A+ %n"%$(t&" %n Ann&#&-1< L%*tn%n* 6!t&$t%!n )%t !%!nt(/ !!' $!n"#$t! V&t%$(/ D!)n $!n"#$t! %+ &$!&n"&" '! M(%n S)%t$*&( B#%/"%n* (n" Att&n"(nt R!!.
297 298 299
ISSUE P0B
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TCE FORM 032 R1
