ML20071N278

From kanterella
Jump to navigation Jump to search
Util Handout from 820210 Meeting W/Nrc Re 820125 Steam Generator Tube Rupture at Facility
ML20071N278
Person / Time
Site: 05000000, Ginna
Issue date: 02/10/1982
From:
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML19302F297 List:
References
FOIA-82-309 NUDOCS 8210070030
Download: ML20071N278 (17)
v • d • e


Text

{{#Wiki_filter:( l -.c . e., CD _c,. v^ RG&E/NRC Meeting ,, p \\ ~ February 10, 1982 I. Introduction . II. Summary of Station Response III. Steam Generator Inspection A. ' Introduction B. Examination 1. Eddy Current 2. Profilometry 3. Fiber Optics C. Corrective Actions D. Future Actions IV. Power Operated Relief Valve A. Failure Mechanism B. Corrective Action V. Operator Response VI. Conclusions I FOIA l sLON092-309 PDR

\\ V 1 Examination of Ginnn Station Steam Generators ( l '. Hydrostatic leak test - identify R42 C55 2. Perform multifrequency Eddy Current Examination a. 400 kHz differential b. 200 kHz differential c. 210 kHz absolute d. 100 kHz absolute 3. "A" and "B", Steam Generator-Examination a. 100% of the hot leg (inlet) (including sleeved tubes) b. Periphery and random campling of cold leg (outlet) 4. Profilometry Inspection a. "B" hot leg (inlet) 1. Fail tube R42 C55 .2. Tube around R42 C55 3. Random sample of wedge areas and periphery 5. Filber Optics Inspection Primary side inspection of R42 655 a. 1. Revealed burst rupture b. Secondary side inspection 1. Up columns either side of R42 C55 2. ,Around periphery 'I S S

ANJ litk4111t! Ill5ICitY 4h N2 Defects Primary to Secondary Total Type of Rerguiring No. Tubes No. Tut.es No. Tubes Date No. Tubes Inspected _. Iranate. gpm Defects _ Deterio:stion _ Repair Fluggi Sleeved Pulled

Conments, s'

A B A B AB A B A B A B A B A B Et Cold Et Cold 1 1 1 In Factory 0 0 0 0 0 0 April 1972 1050 2 ifarch 1974 3259 516 1098 516 ,19 0 Wastage 19 0 19 0 2 0 2 0 2 0 Wastage Nov. 1974 1707 430 672 39 2 ifarch 1975 2174 442 .1931 442 0.0050 A S/G 46 11 Cracking / Wastage 46 11 46 II 0.091 B s/G 0 2 Vastage o 2 0 2 53 Ja'n. 1976 39 2 wastage 39 2 39 2 Tch. 1976 3192 3192 3247 3247 1025 75 0.099 B S/C 0 15 Cracking 0 15 0 15 Aprl! 1976 100 13 I wastage 13 1 13 1 Apr81 1977 2003 268 1525' 268 5 5 5 ID Cracking 0.012 B S/G 300 July 1977 8 8 8 Crackleg/Vastage 0.060 B S/G 350 Jar.. 1978 1 1 15 ID Cracking 1 15 1 15 A til 1978 2049 325 1714 - 375 6 N 6 6 Cracking,Vastege,21GA Feb. 1979 2049 325 1714 375 13 13 13 111CA, 2 Wastage (I) Or 0.007 8 S/G 1200 Dec. 1979 3 1 31 "A" Pitting /"B" 1CA 1 13 1 31 23 April 1980 3139 .325 3182 375 (2) 0 5 2 = 3 ICA P Nov. 1980 3138 325 3151 375 (3) e 3 4 16 6 15 ICA, Wastage !!ay 1981 3138 325 3141 400 N 122 127 122 99 122 113 21 4 7 or or or or or or 3.7% '3.9% 3.7% 3% 3.7% 3.5% Steam Generator tube Inspecting and Pluqqing History Comment-(1) Pulled R15 CSS and R17 C41 from hot leg and R17 C40 from the cold

  • leg to determine ICA conditions in "B" steam generator.

R17 C41 had ECT indications at all frequencies, R15 C44 had just 100kH Absolute ECT indication and R17 C40 had no ECT 2 indication. Both hot leg tubes had approximately.50% ICA, R17 C41 had a 60% SCC indication associated with the ICA. (2) Manually sleeved five (5) tubes with Nickel plated - inconel-GOD T.T. sleeves. Three tubes had ICA indication, two 5 others were proventatively sleeved. ~ (3) 81eeved 16 tubes with co-extruded sleeves,13 with defects asid 3 preventatively. Pulled R21 C46 uith ar 100kH ECT indication, R7 C45 and R28 C45 which were clean. 311 tubes pulled were from the hot leg. .12/J/81 AEC D 4

\\ Ginnn Station Welded Wedge Area Defects R8 C92 14 Tubes May 76

  1. 2 and 4 R9 C91 Wedge Area RlO C91 Rll C91.

R12 C91 - leaker R13 C91 R14 C90 R16 C90 R16 C89 R17 C89 R18 C89 R31 C15 R32 CIS R33 C15 July 77 '#4 Wedge Area - R45 C54 - Leaker 5 Tubes R44 CSS R44 C56 R44 C57 R44 C58 January 78

  1. 4 Wedge Area -

R45 C53 R44 C54 - Leaker 2 Tubes April 78

  1. 4 Wedge Area -

R45 C50 15 Tubes R45 C51 R45 C52 R44 CS2 R44 C53 R43 C58 R43 c59 R43 C60 R43 C61 R41 C66 R40 C67 R39 C68 R39 C70 R38 C71 R38 C72 R30 C12 4 Tubes February 79

  1. 2 and 4 R43 C55 Wedge Area R43 C56 R35 C75

'k .+ R43 C54 - Leaker 2 Tubes December 79

  1. 4 Wedge Area R43 C57 April 80
R45 C48 3 Tubes
  1. 2 and 4' R45 C49 Wedge Area R32 C16 April 81
  2. 4 Wedge Area -

- R43 C53 1 Tube February 82 _#4 Wedge Area - R42 C55 - Leaker 1 Tube TOTAL 47 Tubes 4 e S 'f 9 9

Ginna Station Inthrgrinuler' Attack in the Crevican - 2. tub'es April 1979 -}{fgg) December-1979 - R15.C37 tubes -R15 C38 R16 C47 R17 C/,2 R17 C37 R17 C38 R17 C43 R18 C37 R18 C40 R18 C43 R18 C44 31 tubes April 1980 - R32 C16 R17 C35 R24 C45 R17 C36 R24 C46 R16 C34 R21 C54 R16 C35 R19 C37 R16 C37 R19 C38 R15 C34 R19 C44 R15 C41 R18 C34 R15 C42 R18 C35 R15 C43 R18 C3G R14 C32 R18 C38 R14 C38 R18 C41 R14 C46 R18 C46 R13 C39 R18 C48 R17 C40 pulled R17 C34 R17 C41 pulled November 1980 - R15 C46 - 3 tubes sleeved R21 C47 R24 C47 April 1931 - R21 C53 - 13 tubes sleeved R23 C53 R21 C52 R4 C49 R18 C47 R19 C47 R17 C45 R18 C45 R17 C44 R16 C38 R17 C33 R16 C32 R21 C46 - pulled 9

i i . February ^-1982 - R38 C40 - 13 tubes R35 C53 R35 C54 R33 C59-R24'C48' .R24 C56 - R21 C43 R21 C56-R20 C44 R20'C45 R18 C39 R16 C42 R9 C44 Defect Total 73 Albert C.'Curtis, III 2/10/82 h a b i l l. n I

. s. b .r. Corrective Action A. Evaluate all NDE data B. Plug R42 CSS C. Plug three (3) adjacent-tubes D. Plug R45 C46 and R45 C47 (Midspan) 1 Future Areas A. Structural Analysis B. Review Thermal Hydraulic Design and Operation C. Experimental Testing Shutdown for Refueling Outage by Mid May - Re-inspect S/G D. Determine long term solution and evaluate refueling result'.s E. and potential future inspection and corrective action. D f I e i 1 e e og l ]

B SIG RG&E Steam Generator 9189B7 B5 B5ei 79 T175B 7169 L7 65611159 57 55 535149474S 45 413937 35333129272523 211917 151311 9 7 5 3 I COLUMNS 9'2 90 88 SLGi 8280787L 74 72 70 LB LL L4 L2 to SBLL 54 52 50 48 1L 44 41 40 3B36 34 32 30282.L2422 20 18 16 14 12 10 8 6 4 2 ~ ~ ~ ~ x 4

m. x. x x x xww[',

n 44 +oom>u u. ,J W. .ono,-go

c..mho N

e +ooooo.9: .M. VV4. N 42 / 4 .o. 3g 40 eo: -ot' .t 3 f;q , >e __NN 3, / 36 / 9

h "4

3l o___5 / g 32 3l udl_____.s / 1 30 2) x o.< K '. _.x 29 d-- '.: l 26 y 2' s /

noooo 24

/ x 6' \\ 2 22

nu-___4

._3 2 r f(,- j 9- . \\ -20 i s t. "e s. 4 c 18 g3 o____+o,: .o8 uno. o %, c.-.x

xo

.I,s4 <w -g / 16 n3 uxoooo ---o ,o-_ i p>.e. e,,oe t 14 w-x m--x _A l f y 12 q i .o 10 7 ! 9 i ggg q'.,., _ _ _ e,w . o p,. e. g, g. 5 I, 4 x 3 i .x 2 Y W......................... . ROWS 3 1 -<s-- M A N WAY .O PLUGGED TUBES NOZZLE + X SLEEVED TUBES-O

.l, Frizary to Na. Drfects Secsadary Tat:1 Type af Itequiring Ns. Trbes Ns. Tul.es 'Ns. Tulrrs Date No. Tubes Inspected Irakage, tre Defects Deterioration _ Repair Pluggel Sleeved rulled Coment s, A B A. B A/B A B A B A B A B A-B llot Cold ho t. Cold 1 ~ 1 1 la Tactory 0 0 1, ---- 0 0 0 0 Apell 1972 1050 ifarch 1974 3259 516 1098 516 ,19 0 ' Wastage 19 0 19 0 2 l Nov. 1974 1707 430 672 39 ---- 2 0 Wastage 2 0 2 0 Flarch 1975 2174 442 .1931 442 0.0050 A S/c 46 11 Cracking / Wastage 46 11 46 11 2 0.091 B S/G 0 2 Wastage 0 2. 0 2 53 Jin. 1976 39' ' 2 Wastage 39 2 39 2 Feb. 1976 3192 3192 3247 3247 1025 75 0.099 5 S/C 0 15 Cracking 0 15 0 15 April 1976 100 13 1 Wastage 13 1 13 1 April 1977 2003 268 1525 268 5 5 5 ID Cracking 0.012 B S/G 300 July 1977 d-- 8 8 8 Cracking / Wastage 0.060 B S/G 350 Jzn. 1978 1 1 15 ID Cracking I 15 1 15 Aprl! 1978 2049 325 1714 - 375 N 6 6 6 Cracking, Wastage,21CA Feb. 1979 2049 325 1714 375 N 13 13 13 IIICA, 2 Wastage 0.007 B S/G 1200 i Dec. 1979 (1) 0-3 1 31 "A" Pitting /"B" ICA 1 13 1 31 Apr!! 1980 3139 325 3182 375 El (2) g. 5 0 2 3 ICA Nav. 1980 3138 325 3151 375 ~ (3) c+ 3 4 16 '6 15 ICA, Wastage 112y 1981 3138 325 3141 400 N 21 4 7 122 127 122 99 122 113 or or or or or or ~ 3.7% 3.9% 3.7% 3% 3.71 3.5% - 3 Steam Cenerator tube Inspecting and Pluqqing History Comment (1) Pulled R15 CSS and R17 C41-from hot leg and R17 C40 from the cold

  • leg to determine ICA conditions in "B" steam generator.

.l R17 C41 had ECT indications at all frequencies, R15 C44 had just 100kH Absolute ECT indication and R17 C40 had no ECT 2 ' indication. Both hot leg tubes had approximately'50% ICA, R17 C41 had a 60% SCC indication associated with the ICA. (2) Manually sleeved five (5) tubes with Nickel plated - inconel 600 T.T. sleeves. Three tubes had IGA indication, two others were preventatively sleeved. e-(3) Sleeved 16 tubes with co-extruded sieeves, 13 with defects 'and 3 preventatively. Pulled R21 C46 with a 100kH ECT indication, R7 C45 and R28 C45 which were clean. Alltubes pulled were from the hot leg. 12/3/81 AEC 4 i E

y 4 IV. Power Operated Relief Valve ~ A. -P&ID - original system ~ 1969 - RCS overpressure protection -1979 - PORV Replacement 1980 .B. PORV (Power Operated Relief Valve) - Copes-Vulcan, 3 inch, Class 1513 Globe Valve - Model D-100-160 pneumatic ~ actuator - Reverse acting - Position indication switches - EPRI program qualified C. Block Valve - Velan, 3 inch, gate valve - Electric motor operator - EPRI tested D. Solenoid Valve - ASCO, 3/4 inch, model NP8316A74E - 3 way, diaphragm type - Normally closed I a 9

v E. Failure Mechanism - Operational sequence - Flow conditions - Initial' inspection'and' testing - Diaphragm operated solenoid F. Corrective' Action - Disassembly and inspection - Eench testing - Piping Analysis - system modification --Startup testing 1. 5 a b e 9

O e'. ?* u + t .t, ,c 6 Q i. et t. 6 4. 6 1 4

  • /* 6 I

tt $ t t .e ie 6/ . e e n e

t. i ee es s, e t I-6 i/ 4 t *
  • I 2

t .-[ i M M ., e ,t . # = i ii

f. e it tp%y t

. 6. 6 ... 6 m a,.e ,/ t e t et > .t t e a 7 V n VI Li<r* V ei t /' i t e t CS 1 e

t i

e e I

f. I 4 i
  • 8 i I

t t i e . t e e t a{ e 1 j. C'7 t I f e t 'bfT e ei i i t 8 6 f)

  • / t 4

. tQQ i A i t ' 8 t t t I / It t i 6 I L. '. 8 O e f. 6 i i i e t I t. t 0 t i e I t t. t i t t,e g a g . g. 6 9 6 f , i e t t, 6 t iel I. e e *

  • e 4

ff l 8 .I i e i t i I I I e s 6 e s. e. e > e / s s e e re e s l 6 # i 6 6 t t e i e 4 e e e e e N 03 l l l 6 i t 4 0 6 i t i i i e a 4 O 3 e s .I ( 4 I l t jt t i e ll e e 3 l i i ,) f f 8 6 8 i i e i t i 4 I qe t. t e .i i ' ' 8 I MI g. e i .46 i O O t y, i 4 . t. 1 e 4 . 6 9 i a n . e ae t CAf 8 t i 1 i f I t i i t t t JI J l i f t t i ee e a t e e t ' f 1 6 i

  • i
  • l 6 1 6 4

. 8 *. i t I t Pt ' ' I l ' f ' 1 I. I t I i _ lei s *

  • i a6 i ' + i eg &

4 i t I t t ' I t t i 9 8 I t pe t t e e i ty a. t e e,, i l 4 i t i i I le o e . e. 4 N 6 6 i i IP i t e t 6 i e ie t l .. e. D( i i et i e1 i st t I t . e i. M i. i i e., i s i i ei. d i.. s. e.. e... g g i i e t e i i iii). e. ..t ~ . O '. b . i .. i i i. i ei 4.+ u. t t N '.i i e I t t t t44 y i e I t t 6 . e i i i e i I 6 i i e t , in. i e e. ae 6 9 i 6

  • e 4

3 9. Ie t ' t ' l t 5 i

  • 1 1

h 6 i l i 3 4 4 4 e e i 6 6 4 zo t t , t.. t a I i I e t 6 i. t e i e te . i. 2. "d i l i bl t 4 1 4 . I. i 6 to s 4 4. . i Og t J t I f I t t t i t t I't t t lee t t t i e l } ll 6 t 6 e i i t I i ltot I i ' II a e t t e 1pi. r x3 ) e e s., e t , i 4 t i i. e i fit... gg ,.. i i e i e i.. 6 i... e i : ai Yd ti ; e, a 1 ? e t t e #

  • i t e t

? t i t t t t t a t t t !

  • Ieie 1

4 ! t 6 e I t i t s t l ' ' 4 ' t I I i 9 I i ! ' ' i 4

i. t.

i ., l. .. e , i i e e I i et.. . t 6. i. h t e ' 6' l I ' ' f t e i l 9. e i i ? e e i e !ie i ! 8 I e e i i l s 6 1 1 4 i t.' l .. i ei... _o g . 6 . i i . i . i i. t .. i t . t t e e e i !.t i e. 4 i e }

  • i 0 i. t t t i e.

e t e e e i I e i 6 el.' e t i j. t i 4 , i ; i e. , 6 e i t t 4 s 1 *.

  • I i i '4itt i i I '

I ei 1 I t Ii ' t e. ' t t. Iiet 4 i e4 i i t e t, 6 ie e i 6 6 e e. .. e. . 6 + e e t , e i 6 i I 4 4

  • 6 6 e e e 5 i i e e *.

i ~ t.. i t e t . i e i , e i i e i t +. e i e t I t e . t 4 I . i e t 8 1 i t i i I I ' i i! i i i i

  • e i,
i t t i.

t i t i 6i e i eil i. I e 6 I I ' ' i' I .., e 6 ei t i i i ji e !. , e i es. l' 8 e i . ' l lit t '. i e i e 4 t 6 9 6 t! t t i le t i e ef e e e !t a #, e d e 6 .. a i e, i i, 7 t t i i i t i e... .. 6. 6e i e. e e # : e 6 . I a i 6 6, i e e i 6. t e ! i i t ! I \\ i ! 6 6 1 t i. . I t 6 . e 6 . + t i i t Ia t t ' t i i e . i 6 I ei .. 6. . i. i 4 . i.. . i a. .. i .. t . i. i e s i t e e i i e t 6, ie. .., t . I l! e i , e e i . e,. i s. . i.. ,, i , e i .. e. i i i. 1 ie t i ., e i i. ) i e 6 i . i e t i. e l i - t I t g { t 4 0(( l j l) t e e6 l ' 9 9 a j e j.s t. p, s, 4 i e t i f f i t I e. t i 1 I t t e ag .a 4 2= a. 99-

I - h'R] 6 "^ =' ' ^ "S i IC ' p,,,, 13 evte ni as trtaic cart.'wi-4 3 hf ^;55" C"'*"* *"" M t"f4 ~" I ID It ents esismctics sita we. \\_ [- 2f ,/ s rucw in sraac cast am lD WM)A l . IE sind ~~a 'e *. , pg 1A fiAMEPLATE 1 ? [ g ) f. 18 COVER 1 3 /y. IF - i g IG , f/ , +, IC RETAIN!f;G CLIP 1 I ( [12T] ID CASKET, COVER I til - ~," - c. 14 /,' g 33 IF n:A clCLIP IAC) IG IN5utATING WASHER 2 / Qjg IK IN [ l H-Ns / Dit] u C0it i : 21 - l gglIN2a 6l MAX g#g(p{ I ME 3) (17 0 t it - 8 N fL [ ]/ A KET. RETAINER 1 s 3 - NE 31 IM PETAINER. GA5KET 1 g IN0if 31 5_ gg, p a IN HOUSING 4557 1 ka "wQa}' o @). 4 2 GASKET BONNET 2 10 tr =^5"a. co =' z, e n -- \\$ h 3 / V 8 9 '[_ f 5 3 GASKET 60DY Z ' h 'f J 12 1 .i q 4 BRACKET. MOUNTING + ENLAPGED VIEW E A lC Y [" -NU 5 GA5 16 c j 6 GA5KET. SOL BASE 1 X /. 'y 3 - /-' _eQ T 5CRE'.T 15E'a5) 8 I [M'c. A'[ l ' 1 apy 4 2 8-GA~KET. UPPD1 1 8 41 l 4 3 H. ACES' X 9 $PRING. Ul5C 1 3 [56 ] 3 10 50*JaET 2 I 5 ['8 ]-

~-

[ - RE-{,,M P AC VIGV SHOWilWITH ONE 1 30Dy 1 16 37] MOLLTING BRACKET 12 INSERT 1 b -[132] ~ f6 C S' .YM D46] .3 f.%X ret.10VED w 13 DISC HotDER A55Y I 5 16-MAX 5 { MAX. - 14 RETAINING R!t G 2 4 15 DIAFH A55Y (PEESS) i (143 E'0 5 NOTES: ( 16 DIAPH A55Y t[XHI 1 ) 9 I RIf ~ i

1. FOR VALVES REQUIRING MANUAL OPERATOR ACD IT TAG INOT SH0WNi 1

f6 RU I ir _3..../, m a SUFFtX "A*0" TO CATALOG NO. I 18 CORE ASSEl.tBLY I 2, I. 228%.

2. P05til0t! OF MANUAL OPERATOR K!.'0B IS RANDOM.
  • 19.

SPRif4G. CORE I rh I 220 %y u

3. WHEN MAtluAL OPERATOR 15 USED ADD 15/16 [24]

t 20 GulDi. CORE Lact i D [ l t 0.4] 22C- ,3 r-4 TO THESE DIMENSIONS. 21 50L BA!E Sua A55Y

  • =

22E lL_J._'l

4. A1ANUAL OPERAIGR STEM A55E'.13LY llTEM 22D MUST w 22 4

'O' RINGW.0 1 ' (t.\\ I 21 r N - 22F BE FULLY ROIAl[D COUNTER-CLOCKWi!E BEFORE v 22B GASKET U.103 1 Ig M g,l MANUAL OPERATOR OPERAllt;G ELLCTRICALLY. 22C C0 lit A55Y(MG 1 J5{RIf 2.1] ,,, 3 (NOTES 1.2 f. all j

5. SUPPLIED ONLY WIO 5PECIFIED"WITH SRACKET*.

220 BODi(f.1C) I I I i' 22t STER.i A55E.'8LYlY.O 1 g i5' &, iP Ew4. /g g 23 RtrAm u.o 1 (.). ' f/ r(""wblP r Y. l4.5 p.o. # //-el-83 ??3-( s / VIEW SHO'.*JN WITH l V' W ts Q m i. NP3316A7d NORM 0 PEN _,4 210-327]F4210-329 Fv210429 FVp0-!!0 %7I'< 74M) lea 74E NOR M E05ED FV463-200 tHJ0Fidl7EdM'.i27 DOI 50LEN0lD A55EMBLY Ell! DG CONSTR. AC 1 0G AC DC lf REMOVID l ~ D 9 DI A H0tt A.Ni li R ot CATALOG STANCARD , AMNUAL OPERA 10R ! P.ET

  • CONSTRUCTION

{9g fiUMBER SPARE PARIS K6T !gr1 1 .I FOR MOUNTING ,, P1 3gg gl7$}g e m,..r;Ps316 _3_ w.,s m ee v.t.. i i 4 PLACES OcDu M4 Ps,Poe7Co g '-I P: bb iMiuC'(EMMiED T.?IITIEVITE ^~*

iE-J',

I now D: AcRAu 1 $~ ~ A i,0pr.utLY Ctost0 i NORP.1 ALLY OFEN Ot-! gRqQt r/ EWcl/Fi) of-E*.E%iZ'O ENF.RGI/ED-ta 6 ,g TR.WTi'PETjG.'.EV5fsjf [

        • i *"- (]

c,,ctcsunr -N -M . EE-- M . IST i %a ,_, ',t!, y wam m 3C S H Ginifidt jA l.gwl 4:.' HVA 2 2n E A E }A E(( ]-A E r W +ra = l Q E.,.); a = =7,;. =,_7 =,, = := = =.- e P P r ,mLCt0sm i .=as uiameC sueca ca. --- -..'.- A e

t i t ,..9 en, m.1, ,Ips-- b A._,; v,., e-cw 2.g. [: t i i N i i li:l; II i ..l !,,'1l l l I s rd! 8 i -;Wg-ru. r 7 inipij;4 EdF-

> s:.

e '. f f r!J l [ f j L. f r[ - 95, { i si -d.!I

t. i.l l ;.!. ;.

i .r, ~;r u i" 5n..'id.e# is. = i.. i ;:f ' '. .,k;!,u.# I: I a(g li j'i i!i.{I nt; h 8 t if M p p;. t il'l s d, 'ir rJi1:!' p, !. I;!!! li 4 !i..i -1ii;';In s ^-! a i si! ihIi !!!,Hi! ~ s; i Iy

si8 nu -

ts, ./ e til' g;I,.a! J.p.;M.. If 4--- t 4 = {n w -y y 6.it t.i.i n m .x .dhb q! li

i t

7.; . h re :

Ve J
) !

i 7 .-.__y'i f'l 1 l e r, to : i ! ;! E ii

)l tr

_It, v ip i s s. L f ',Mk -_s-I s:!: . -. + b I::4 5I,lI des.t-, 5 s --- 13 !Ji g

  • L.'

-di~ s v ". 1 q -&-s -} +-&-= :l W A i : i.: I p 6;i p 6'.j, l j i 3"f;i A-.% 7 B@it A--li: rr r:ql lit i A ep4 J swy 0: ___n 1'1: a i)

  • -O - *jii
  • -O-eji
-ji
l. -h i

!. -j i m i m i -i (s b { l Fi i Fj' i ,, :3?r g t 3 "u _... a g 7 i q- "E* 'k[! (p ;;3 'f;i i i t w s e M Ei T,kl I E T,.ki !l I !.,4 yp !. 4 ys i!! --EI !I d T.,ii, I3MT.ii '. I Is "jh. 8 8 t.

e. ~ ]

',a [. ---p = y c 7;

/+-
,,h i,

i

a; i *, 5.h.,

n 3 I, / !!k),

1'.

h' f -r'd ). L te L ]:o

  • C' d' te

+c Es A g f l L: A --.t.,n @: s st,t, <' t m!j-

D (B

I 1 i; g - 1(- ih ,N' 5 , r! A ei-;- , ei l l 5 2 i

f Raa

.,:v i. 5. G C",. . & - @k, I g^f j w. _- a 3 3* .,2 3 jf

j
4 A p e.2.-

( e i t< l aw 3 s-I* 8 I i.

r.1.:... :. Wk. y a,'..7;n.y*C

29.. Yu..y;;ueq.g. -.,.;.y

.......u:.g, w ' w-- ~ g y t; g..t. ,.l

m..,7,.........m W.. v.n,:..a.9. ny. s r.n...

. n.r ...... e ::, g ::~ g.. .-g.. ..f.U:w-y.:.; ;f;.g:';,413.f',i.e. .r M-t., V.e.mq. ... ;. y p :.t f~. f. %g)n'4i . Rgt. y. g fd 5 .a.5, 5 1.::re m v

pt,s
f.
.

.a?.9. ps.yf.i..na.; :- n-y .{:a.u;; D.a.iiv.'.c%.a .:.u. win...@.+ ': < M.OP :# ^ 4...c.-Q' tit. 9.W.q..., .... j b. h %, $.. $.. t. h. ' a. %..,.,,. j.t %. i:' ' x.%.s ' Y '.* :.[ ". *.': &Z,n '? -4..'.. ..... y k. j.;l w %;.,.,. n. v!. Y t -.}. . e ,W...d. .. e. ;,.. we..

i
r. :w/y.

,.R4W: t ....: m.....w. ~ %.. w ..u..m.}p.,.%, - .t, r .+ L a " *:. a ;. ;., 3. T.:. ~ y:. *. c Sf.f p., ([ h f;,) )g.j ^I 2L 5 .i l k. .[ k.'j j/. / ..a.. Y j . j,ef/s.I.. ; .,T g. ., f. 3 A" .j - ;s .u : p g,I _ c. 3 j.W:.W. A.1f :f :t W' grf ( j ~ [ I'

j. [.(,1;,

. Q:Q?W / 4 ^

%r'eg

-y.::.GMf#...5::J 4 .f .., d95R~ius t' ~- s .,~.':yg;:.g,%.r '.7 "lR W I '. u .. f:.s ycp.).Q t.:: (e s p... R#.. m e m _ g .L + 4 W s ~ ..i. g. s NY$$k$,$nb L?hh ~ '. ? c ~P' @hwan# M s % % %s.:4P. S.;;.*U4 MS d,

  • v ww

. f,.n. .,d. . ;;.j dT . *. f.o. g.,,:v.c.s ,.t M..-M #.:.... ;. -

n. y n. ~

4-t g no-.: {4dep*.,d;%n.,n;. Normally Cloaed.,/ (FORM F)... ,j f;,?...,L,::va\\ .o... a-3v..o. q f%: 4/ N r '@-;S. h! ..h i'- f i, I. h d @ h:& b ;h.d.5. $ 9 '$ W Y.;' ' ::$"'3:..'tb t 'S I.*S?' 5N. 4.;4:., 'i; - BDLL. 831'6 97.::-: 'i p'

  • " *- p 9 :,,c,

'g

:' ;),.

f . QQ;.p. ~.,5? M..m.i).tQ:$,,i V.,. v.: i p fr

  • g *
n.,.. t. *..

,,f.... t.. c* = t* g; =y. G.; 1W:; n .h .;.14:':3. w W,. W &'. %; h W. ~. I W;'A @;?.b.@ w.b x.t-d... n k f pS ....e.._ y .e ft,. *j s,- l '. b ' ;. f .l y. g. v.>-- "F .3 ) .,g-- s.-

x..
  • I.

.F g.e n ' *:l .lQ,=y'* p; l.'* -

n.,

.~,Ts?.., { ,,'y,.e t,.,,,, , { s'. g -'-N-" g_ m E. - - m_ M J'. * - a.ho E 1A g. ._,,L,, 9,

,,. jgMUMt MM. WILLIAM MACLEHOSE, pVTOMATIC SWITCH COMPANY 1/ 5 /,8 2 :...., $'- a "tT*1d [h ! $5 i @h.%.'j::.;....l. .i ( -?

Q %.{b.f; &

T p.g..t: 6 :,.. . e.? p

p:

c 't *.h [ 5 i. "g. J, L.,, b ,q.. y*.;?.f. Ay.e._g.'.; g;.f; z e

v. ' ~..

..~ ... ;; s-s, ..e., .;,5 3 n$k?hy,'.k,.df.% ' '/ .ht'k' d; M' kIk h, I ~ m $t.qg 9..;.. t;- . c.]: '.n. v... :mk;.i..:,. g;,. e .M;p:h.g ; .y.~

..f.9

..M' " 'M. \\ i M..tf. %y- .y sy;59.; k y a. c (rf. h. 3 .\\.

p t

,c;.f. )v.,..,, :.j.r;,. .c g ,,i. .e. . pc.; ~ p; :.. ., '. + . r-

i. s p.,;, 7-

. h.;.., &.& r: s 'g:. ,/ a,L / ] .c '$,\\...,...,.. g ;.; 2. ;,;y*?. : *. - / J/ii %:.-. m, m \\;W.

  • '*?

,n;..d,.u.. R. 3 3,.... ~ QN Ns e$,a,. 4 ~

qa
91..:
i....,

..~.. u.... r.:.. o. . c. . ;n c c.. :.... .k. $$%l..e ^Q 3 h a Pil?%.:.$'?h$.4.l< i M... N, 4.,::f '. h f.. s ~.il h - lE Q< . Y i[&x _. ?. 7 c. ,a / 1 An ... :.,...y,..,.1..n.., s ?a.,... s v s s I ~ gg.n... y7, q. ...,,.. n + :.. s u gn..

3..ggg.

y , p...>. g y Q-s . g, ... :9;. ; . y :.;., s ..g h.y;, p,h,. s 9 s j.(p..;;# y .( Mi %~ y}g> ~ ','C.'?.,I...,,..,. L. NN' . p:..i. : .3 .,m; u9 v.:., eq%p... &:,:, ; An'N.*,$w. f.... . P. - ...w:s. :- .e y 2 n&V^* .:.'t 'it l-- d '. a,. 0 '.l' !U... ' sit,' 1 1 ... y.,.~.. r.. ... %y !} a.,...:.. .f s%:%r .e .~. sg..,:pp.. 3.y. b.** r4.. p g .?

    • .1 f

.= .$.,...;r;C..

1-

. e. 5 > -y...,y, t.*; :.. it.44... p.,. -..c.m.a.p.;;..g9 +;, 9 w .e.%a..:.>,u s x a, u 4. g 6 :'s..a. -.- 2. r.. .:e . Mg. :.::;... L. c ' w%.. W.h.,g.y~..s;,p k<:.h. n.i..m ';- (: ..,,'e t

  • i.
i.,,.

. ~.. 4-s .,.gr s /d%j. s og,% .g...,. t

7..:/W $ k,;i Nom.511yzClosid Q&l.(FORE,F)b I.ENOID DE-ERIZED..;

g 8.;7;.-L. :+. SO ,a. c ....,,%..,........q.3 w -As..n ~..,i!.<. ..7> .:.>:i8.> :s ~

.
n a..>.,
a..
w..

v. . ' ~ o '..t: * , ;;smy.**rXm:,=v.. '. . i. l...) i ? kf, ;; f&

p S.

3 ..... h..... ?,..&... : .i .r

2..
.y Q.e

> ;:::'.. s.9, _ gvu,t.s'316 y*f: %e m;. . sm.y .:...;my:-.+..w..;r.rapW. g..m... _ c .f... .c... 1,n.c... .g*3,

s,:.-,. 4 %m.t
y.,..,

s .w..e...i.,;w;....w?p:c:. w.

. <. w.

.r. -f./'r 1 s 1 4-s... , ~,...a:... S ? { __y.44..p:gg,,,, g 5"__ ^ e p.y [F

  • g"2},

l [! j."- e ..s l q- ,.~. . sL1' -s l -}}

Retrieved from "https://kanterella.com/w/index.php?title=ML20071N278&oldid=4414712"