ML20032D746

Forwards Electrical Penetration Test Sample Splice Procedure, Cable Splice Details for Electrical Penetrations & Heat Shrink Sleeving Installation & Splicing Procedure. Testing Will Begin 811101

ML20032D746
Person / Time
Site:	Fort Calhoun
Issue date:	10/07/1981
From:	William Jones OMAHA PUBLIC POWER DISTRICT
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20032D747	List: ML20032D746 ML20032D752 ML20032D761 ML20032D766
References
NUDOCS 8111170444
Download: ML20032D746 (14)

Text

-

v Omaha Public Power District 1623 HARNEY a OMAHA, NEBRASMA 68102 e TELEPHONE 536 4000 AREA CODE 402 October 7, 1981 Mr. K. V. Seyfrit, Director U. S. Nuclear Regulatory Commission P!c

^

1a Office of Inspection and Enforcement ti

=#

Region IV h!

611 Ryan Plaza Drive

,y OCT l 3 GBl Suite 1000

J j

Arlington, Texas 76011

Reference:

Docket No. 50-285

Dear Mr. Seyfrit:

The District's letter dated June 15, 1981 provided the test speci-fication to be used for the environmental qualification of Conax electri-cal penetrations. As a result of information presented by the Com-mission at the July 7-10, 1981 meeting with utilities concerning electri-cal equipment qualification, the District has revised the aging and design basis accident test specifications and added test specifications for short time current overload testing and short circuit current test-ing. Additionally, an electrical penetration test sample splice pro-cedure is attached. The attached Conax electrical penetration test specification revision supersedes the June 15, 1981 submittal. Please note that the referenced drawing 2325-7684 was transmitted with the June 15, 1981 submittal.

The District intends to commence the qualification testing of the Conax electrical penetrations by November 1,1981 and provide the test results to the Commission by June 30, 1982.

Sinc r ly, 6 'A l}

3q L (,- Wo 3

g[Q7

/r i y

J (,h

'g\\

W. C./on Managep NOV2 6 IO81 ones Divig'i A

Production Oper@ogwSa IE&rOnn y'

-- j

)

WCJ/KJM/TLP/RWS:jmm g

s

?

Attachments g

~

cc:

U. S. Nuclear Regulatory Conmission Office of Inspection and Enforcement Washington, D.C.

20555 LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.

Washington, D.C.

20036 8111170444 811007 DR ADOCK 05000 b

3

.~

e 1.00 SCOPE The scope of this specification is to define the testing requirements for the Fort Calhoun Station Conax Electrical Penetration in accordance with Reg ilatory Guide 1.63 and IEEE 317-1976 as modified by the requirements of the District's electrical penetration contract specification and the requirements of IE Bulletin 79-01B, which states that as an operating plant Fort Calhoun Station must meet the DOR Guidelines.

Based on these modifications to IEEE 317-1976 the following test sections are not included as outlined in type test section 6.4, Type Test.

6.4.6 Partial Discharge Test - all penetrations to be tested are 600 V class insulation 6.4.7 Rated Continuous Current 6.4.8 Cycling and Aging Test 6.4.12 Rated Continuous Current 6.4.14 Rated Maximum Duration of Rated Short Circuit Current Test This test is only for those penetrations which were manufactured using teflon seals and teflon lead wire insulation.

The equipment shall remain functional during the environmental conditions specified.

1.1 Scope of Supply The District will provide the test sub-assemblies, 3-7/C #10AWG sub-assemb-ly No. 2325-7780-13, 3-12/C #12 Sub-assembly No. 2325-7780-03, and 3-16/C

1. 14 sub-assembly No. 2325-7780-15.

Each type of sub-assembly (7 C#10, 12 C#12, and 16 C#14) will be made up into the three different test con-figurations.

The District will also provide nine sets of midlock assemb-lies No. 2308-03 for attachment to the test specimen and canister.

The test laboratory is to provide a test canister.

The District will supply splicing material and a short length of cable for connection to the penetration af ter aging is complete.

The District wili supply a proccdure for splicing.

It will be tr e testing facilities responsibility to provide connections and splices for the test equipment.

2.0 APPLICABLE DOCUMENTS, CODES, STANDARDS 2.1 10CFR 21 - Reporting of Defects and Non-Compliance l

t '

2.2 10CFR50, Appendix B, Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plant 2.3 ANSI Standard N45.2, Quality Assurance Program Requirements for Nuclear Power Plants 2.4 ANSI Standard N45.2.13, Quality Assurance Requirements for Control of Pro-curement of Items and Services for Nuclear Power Plants 2.5 IEEE Standard 317-1976, Electrical Penetration Assemblies In Containment Structure For Nuclear Power Generating Stations 2.6 IEEE Standard 344-1975, Recommecded Practices for Seismic Qualification of Class IE Equipment for Nuclear Power Generating Stations 2.7 Regulatory Guide 1.100, Seismic Qualification of Electric Equipment for Nuclear Power Plants 2.8 Regulatory Guide 1.63, Electric Penetration Assemblies in Containment Structures for Light-Water-Cooled Nuclear Power Plants

3.0 DESCRIPTION

3.1 The Fort Calhoun Station Electrical Penetrations manufactured by the Conax Corporation are penetrations used on low voltage power and instrument ap-plications to provide both a primary seal to the containment atmosphere and an electrical pathway to containment mounted equipment.

The penetration manufacturer used TFE virgin teflon as the seal material and FEP teflon as the conductor insulation. The area between the fittings is filled with dry nitrogen at 15 psig.

3.2 Oxygen is known to effect the capability of teflon to withstand radiation.

Simultaneously with the testing of 3 1 a similar penetration will be tested with DOW CORNING 3145 clear RTV coated lead wires and exposed seals which will be in contact with the LOCA environment. This will simulate the coat-ing of the lead wires in containment. A third sample will use Raychen Heat Shrink Tubing Type WCSF-N and RTV-3145 clear as an oxygen boundary, see attached Figure 1.

3.3 Following the accelerated aging the penetration leads will be spliced with Rockbestos cable to simulate installation. The "as is" and RTV sample will be spliced with a double layer heat shrink as is presently installed at the Fort Calhoun Station.

The "Raychem" test sample will be spliced with WSCF-N splice.

Preparation of these splices is to be conducted per the attached Splice Procedure.

4.0 TEST REQUIREMENTS The penetration will be demonstrated to fully function as an electrical conductor and as a seal at the completion of the environmental stress test-ing as defined in Section 5.

5.0 TEST SPECIFICATION 5.1 The environmental and electrical stresses outlined shall be applied to de=onstra te the ability of the test specimens to meet the applicable elec-trical and leakage acceptance criteria.

Each step is to be completed in order.

Consult the attached Test Schedule for an outline of the test.

J

I 5.0 TEST SPECIFICATIONS (Continued) 5.1.1 Leakage Pressure Test'- The leakage rate of a penetration cani-6 ster assembly shall not exceed 1.5 x 10 standard CC of helium per second when tested at 69 psig for a period of 10 minutes.

The leakage to be measured is out of the test canister past the teflon seal.

Each conductor of each feedthrough shall be 5.1.2 Continuity Test verified for continuity.

5.1.3 Voltage Withstand Test - Each feedthrough assembly shall be sub-jected to a voltage withstand test between each conductor and all other conductors and sheath connected together of 2,200 V 60 HZ for not less than one minute.

5.1.4 Insulation Resistance Test - The insulation resistance of each conductor to the other conductors and sheath shall be measured 4

at 500 VDC.

The minimum insulation resistance shall be 10 megohms.

5.1.5 Aging - The sub-components of the penetrations shall be pre-aged.

The aging time shall be 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> at 190 C, for the assembly tested "as is".

Aging time for the "RTV" coated and the " Ray-chem Heat Shrink Cover" assembly shall be 468 hours0.00542 days <br />0.13 hours <br />7.738095e-4 weeks <br />1.78074e-4 months <br /> at 190 C per Table 1.

5.1.6 Rated Shorc Time Overload - The feed through assemblies used for power and control applications shall be subjected to a short time overload test.

The sub-assemblies shall be subjected to contin-uous rated load for a period of not less than 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> at the end of which the assemblies shall be subjected to a short time over-load. The test shall be conducted in accordance with the follow-ing table:

Time for Subassembly Load Current Overload Current Overload Current 1

7/C #10 32 amps 230 amps 10 seconds 2

12/C #12 22 amps 160 amps 10 seconds 16/C #14 Not Required Instrument Service Only 1

60 Hz AC current 2

DC current 5.1.7 Short Circuit Current:

Each subassembly shall be subjected to a short circuit current (current calculated for each lead) per the following table.

Subassembly Short Circuit Current Clearing Time 7/C #10 2300 amp 60 Hz

.033 seconds 12/C #12 400 amps DC clearing time for Buss 10 amp MIN or NON whichever is longer 16/C #14 Not Required Instrument Only

t 5.1.8 Seismic - Seismic testing of the electrical penetrations shall be done in accordance with IEEE Standard 344-1975 and Regulatory Guide 1.100. ' Penetration canisters are rigidly mounted in the containment with rhe sub-assemblies mounted in the canisters as shown in drawing 2325-7684 attached. During a seismic event the motion experienced by the penetrations will be the same as the structure Figures XB 545 S-38 and S-39 showirg the structure accelerations.

For purposes of testing, acceleration of the 1050'-0" elevation shall be used. A 1.5 multiplication factor shall be used for the test accelerations. The test shall con-sist of 5 OBE and then followed by 1 DBE events.

Step 5.1.1, 5.1.2, 5.1.3, and 5.1.4 shall be completed following the seismic testing. From Figures F-1 and F-2 attached, the natural fre-quencies are 3 hertz horizontal and 9 hertz vertical. The absolute containment vertical acceleration is given in Figure XB 545 S-38 and S-39 through the entire spectrum.

7 5.1.9 Radiation - Penetrations are to be irradiated to 2 x 10 R total integrated gamma dose.

Repeat 5.1.1, 5.1.2, and 5.1.3 each 6

2 x 10 R increment.

5.1.10 Design Basis Accident - The assemblies shall be subjected to the following accident conditions, as outlined in the attached test

~

profile.

305

• F 74 psig 2500 ppm boron chemical spray buffered with sodium hydroxide for a ph of 9.0 at 0.6 GPM per square foot While the subassemblies are at the second DBA peak the sub-assemblies shall be subjected to a rated mar.imum short circuit current tost in accordance with the following table:

Subassembly Short Circuit Current Clearing Time 7/C #10 2300 amps 60 Hz

.033 seconds 12/C #12 400 amps DC Clearing time of Buss MIN or NON 10 amp whichever is greater 16/C #14 Instrumentation, Not Required After completion of the environmental exposure repeat Sections 5.1.1, 5.1.2, 5.1.3, and 5.1.4.

6.00 REPORTING 6.1 Visual Inspection - Visual inspection shall be performed following the completion of 5.1.5, 5.1.8, 5.1.9, 5.1.10 and a receipt inspection.

Results shall be documented in the final report.

6.2 Failure Analysis - A failure analysis shall be performed on each penetration assembly which fails to meet one of the accepted criteria.

The results of the failure analysis shall be documented in the final report.

1 6.3 All test instruments and measurements shall be tabulated and included in the final report.

1 l

l l

l i

l L

.l

.4.__

u 4. _ 4 _. q... _q......

. _ t.

j._._._,-

j

__.._.._-.__,.4

.4__..___._-_..,______.

_,..._.. v.-.. _ m. ~ _._..l..

3,

_,__2.

u L.. _ M.______

4,s.

4, _ -- p. _.

j

. 4_

i t..___

._.._w.._._

j_g o.

(-

.... a _....

,.._..3 l

.p.___ _

g N3

. y...

.~,L_._.-..._...__.._.__.;

j

.a

_t _ _._. 2 g_

.m._.___

.-._..o...._....___

. y.

4

.t, p

7,._____.

C

. i_.

c. =,_c s q.

%; y.

c:..__.

g_.

. - Q.

, f, :._

, W. 5 ;,,,

a m g..

s

+

__ _y __..__

3 _ _g w

q. __3

__._ y._ u q

_.._,3._._____.

g_.1+.

5, s_

..__.L..__...___

o _-._._.a i

m u

n

_m_,

x..

x d__

y

,3 p

/ES

' _ - - _ _ ~ - -

,/.

1

_n n

/

+.i

e. s

~

i e

m t

I e

I i

i 1

+

t I

1 1

i i

._ d i

69 i

4 e

e.

r

,Q 4

r i

W-i c_

n

' ' +4.

i-l e

H_

u_ m.n a

'___i...._..

c.

1 i

8 -

i t M s

m

,i.

c.,.

a

,i i

n.-

u, e

l 2

-j 4

p'

. M.M g> f. ' '

gg-4 I

4 q-i o.,

.a y

9

_.._.._s.

g..

_.-._g...

y a-_ _

p._,3 Fl__ id, _

d' 8 U_

.?.I 9

1

... ;... g s

._c :

+

j

-Q.

_.j

, _.o o

.w v

g. -. 3 _.

g - u __._:

__ _ _1. _. %

ch i

1.r-

,q.y(

-I i

.4..

i

_4

' _- _ _ L..- _ _d_ r_... h-4h -- [.._ - ~_ 1 4 ' ',.

q

- ~_ !

,1, r

y

. a._..

4 o4.. _

4.,-

,.-_L_

..ye.

j.

__._.o

g..y... 4

.u

_.,o

. m.

s m y_._. o..__ _ y s,, p; _ _..

....j.t L

-g.

..___..a og

,y_

1

>E

_ _k _._..b

v.. -.. D _.q _. __.g'glk.

I l

Q

.. y s

.. _- _ q

-y. _o q

y 7

3 i

/egpeT40Tue.i I

i i

i i

i i

M

Table 1 CONAX PENETRATI0f1S AGitlG MECHAtllSMS ITEM SERVICE TitRESil0LD LEVEL ELECTR0/ QUALIFIED

. ITEM AN0 MAtlVFACTURER ENVIRONMENT fl0ft-METALLIC FOR RADIATI0tl RADIATION TIME /

MECHAll.

LIFE i;0.

IDENTIFICATI0f1 RATItJGS C0fiDITI0flS MATERIALS DA!! AGE (PADS)

(PADS)

TEMP.

CYCLIrlG (YEARS) 1.0 Penetration U/A Sub-Assemblies (All Types) 1.1 Prir.iary Seal MIL-W-168780 660C TFE Teflon 8.7 x 103 2.0 x 107 100 ifrs.

40 For Conductors 2600C R.ll. 20%-100%

0 1330C 0 740C 1.2 Conductor MIL-W-168780 660C FEP Teflon 8.7 x 103 2.0 x 107 100 Hrs.

40 Insulation 2600C R.H. 20%-100%

0 1270C 0 74 C 0

1.3 Coating for 2050C 660C RTV Dow Corning 1.0 x 106 2.0 x 107 468 Hrs.

40 Lead Wires and R.H. 20%-100% #3145 0 1900C 0 74 C 0

Exposed Seals 1.4 Heat Shrink 900C 66 C Polyolefin 5.0 x 108 7

2.0 x 10 100 Hrs.

40 Tubing (Splice)

R.H. 20%-100%

0 1500C 0 740C 0

1.5 Insulation 2600C 660C Silicone Rubber 1.3 x 10 2.0 x 107 100 lirs.

40 Tape (Splice)

R.H. 20%-100%

0 1300C 0 740C 1.6 Covering for 2050C 660C RTV 1.0 x 106 2.0 x 107 468 lirs.

40 0

Insulation R.H. 20%-100%

0 1900C 0 74 C Tape (Splice) 90 C 660C Neoprene 1.0 x 106 2.0 x 107 355 Hrs.

40 0

1.7 Jacket Over Conductor R.H. 20%-100%

0 1600C 0 740C Insulation (Splice)

l 8

o p p i< r 0-

/2

...-.ly..:, 5. 2., s.._.2. g f.

,.,qp. L,

.o

. g.. -...

o

. o...._..-.

,. g._.q,.

_., j.

r -

3

- ;.g -_.

,9

,,i u

sa r,,. o. _.g

'.r--..... - _.

y 1,.> v v i, y..j.

a

.,. _a.,,

~,,. - -

+, -(,9

'/.}*p/{,

,,',. 3 o O.

J f

A

"~

l f L f, d' ev:-

T

.,i./ v.V n_,( 6;Q J ',?s -

o, ;< :) 3

-e o

^

• 5

%q> _s.=._ _/_.,.

• d '.,.'/_.

t

. - 5

y 1

.. -=.,

.sv

, f,,j. \\ '.V',

. f, /-

.N ; :,/

,A E.....

93>'.*

.D ~.

.'u. ' * -, ~.

o

. ', /.,

/ ['._., v_

1y i

o._

.~

,%~;,;~._/.

p."

n. -

g 4'

. p,. ',

.o.g *

'.>/,<,.,,i /.../ i f.

L, s ia >..,f

/, A o-s., /y a =. %

y.

..n s s

.. =

,,, ' w,. f.-.~".x.,

t,

,si.

e,

.o

s

=

v, &

, ' ', =.

, e.e. %..

c

~

. c's,. p,.

=

,. /

/

, m v.w....a~

g,p:.,\\.' /,.//':,

.s, - - a s sq / 9..b '/

/

=n

/ /

4 n ~

r,..

.a

. /.-

v e

v,v m,%. g:./.,

< q,/..<.~, ': -.

.s ;,.c.. i; <, s.

v

. t s w.<.'

i

..s. /

~

., a -

s

,. /.,,,,9, s z.y i

.:a e g. %.. i n.,

e

,,.s

.na..s g '..

7 o

m.

v,,,g. -

~., -

3 o

/,- -

,/./

.o, s

-.n.

E,..

. _ Ja.

,~

/..

s s

- -Yp s/g f

f M

Isp;g g

,'s s

i,

a. 3o.-s

/.

K

//, i.!

v 3, y,

s

? ~. i e

' fo, j [';/~'

N

/C '. ',?, t;

'7 N :,.'s

%, 5,,

n=

,l 55

'l

,4D'. '.,'

[;ks N. f?.,/.N','!,' X! 't E e 's //.5 i

s o

v. f.,,,g/

[ '..,.,/ '4,,;g-lf. p sy>.,4;,'I

- a s a..a N,,

N' @. ;'.3' i!

1_.

s 5 >.

/

N.

-'s.

x,',;~ h 'T.c,.

x

i.,i o_

o,-

u.o.

x Q / ',

. s ' A ',.

• v'J

-e sA ' t,' ; N.

V.t,

s=

i.

, = -

o o

o E--

s. _, c:. / ',

.s'

..( c c,,'.=E

v'/, r,'

xt.,,r,. 'N.. <t

s. ;

o s,

i

(..

,Po..

y o....

s

.s

=

j;j E g %;,. 8 8 s_3. " s,,

o o=

t-JJ

's

<s e

. e ' f ~% sr<N:

s

0. t.s. %s f,0

,? s,,,e..-

.< s

,y<,/.'q-

.s-

'o, sN a...q,/,.

,9.,

s g

m N y,

.N z

n,.#a, s '

f

, x

"../ ~.

a

' A

,N N//g/ )f. Q.g/ /, N I

8 e M,e

' c:

Nf,

. / '

s l~.

a,,,,6x,, s.r A

o ;x. ',yd j's

, A,. 0,:.o.

'*l V A..

/

w o -, t.,

'< s.. 3

,*;.,0yp. s,o :., \\

• (

N f., './ X X,.< f

", o =. '. N : w N

u s.

ss%,,, o$

u s /

n,

- u

-sg

_g-1

.r.

<j s

. _, "~L'd' s

-= z

-) w

- gi i

./

_s o

s. _ E Q-

~\\)

/,, < / _ < N.s -

0 -

M.,s%.'bXs <

sa2 E 3

o s,s s -

s 4

, '?d,0 5

=.. y,,..

d~

s.Q' '.d

/ s. ' e,' / v. s,' s s'

s o,

f

.QK,/ /. j(';;., '/ ( ' ' g)$,', [,,/ y. [ i e <"/)y;.ly'$y '( N N <@j j

(

3, 2~./,j

/

v N

la, w-

_ -/,N. </ 7 ; f:

XsN p isp '/ b d.-[J.' ' I N',

ef *hDs's h,N-.V5f o-

' 4 O,,Aj.,.*

5.,

y 5, ' s, o2 'Vff) l y w#--. 4-.

wm o,

,'W*b;.,% vd V' 1.t,5N,%! / l ~7,AN NO\\, 'g.'3

/.Y

/('f.g<. /,

e o M

2

~.

% l

1. .no-

. u. o aA.

-/ /

.3 a

Ifs.j 3,, : w $ // [.,

-/s / ' 'g/

, <. c ' @9 1'r,e,',

,/* 4 /Y,jO 5 N,:qs '/ /,

p'8l }f N

y /,l i

w-E m./,/

,m /. N i;

.i 4' *,% s > =

sA 4 g

/

• ;,s

'(. /./j;, /.,',(sf..,'.g a

=.

.l 4 w / /, (,'

..f '. ; / J< s. E,,

!.i N

--...t,

J n

4

',['s, '. l \\[,(.* / v)I/ / \\,S,Nhlt.

NefN,bjc#

E, y,

$ U ' 'M, e' l

j

's

,f,%

-e U

h

' Q

.ss/,

/

s,sas,,s,s(. g,,./,(/ ' ','./ % </

v't/ N K-

=

y A.O

/t

.4,w

s. < 3, i./.

N u

, -, y.

f

/

.s, q.

. a V. w.

y(s,.s/V /,'. %

• s*

xy s,'

/

, y j. /, /{e./

.,...., '/ (

y.

/

.e ys s

a

v. -

( \\, /s e,

[

s

/r o

',.e.m

,N ')

/s

<1

/^

/

3,,

g

.e<*

a a --'a.

,. /

s

.=

,e s

s s.

o e

N.:

s.,.

n s

f....

y O

.s,.x-A

_,e i

,7 p* s- -.

.s v,

'fs is e, is,7_ r r %n./ ' g,s a( s s;

o

,a y-e e

,f, o, m

... ;< N N/\\.

X

), ', V ' :,

.e

.,s; N t-

.go w

. N

, /. _

p q

o y

s

,E

... s.

' f$1j y ss'r,y.,,,

, :lf l < e.f y, b 4 v,

,sf(

s, s

., s

,=,

. '._,v, o-s-

o se, = o o.

yj / f :.3A

,.,y a

.s

, g; 4

s f g y g a,.

% - 9. p o.

,.Z.

N n

s.

- y s

e

-...,e v.,

f

.a e

O

-.-e.-

.. ~

n w-o,'

.f

/

s' N'

S-

, ; <:< '. ' = o

~

/.

,O

..,.s'.'.=

.o..

.,.k

,[

i

• .y.s,1 x

q<,.*N

'. ;,f. 3/ i -s.

(

e o, :~- v.

5+4 jie.7s..<

f lt. )d \\;

s sa -

O =.., p.. 'fo, ; <. ' / *..". s,Vi e.

I s'

s//,

. gf, / '

4

s w:c* '

. M. N E n

,s K..

~*.--o

. u 'OW i,

• s:

N

, /

.(.

s; s-j k.s.,/i,t -

o

/

<w

/

• 9

.,, e. ' e %.".J s.

s 5

,1

-s

,s oi4<

,.,j, 'f 3</X,,,

,e N, /')/ 's' 3 kk 'M'h ! '"'l

p s -' ' ' ' ! ' ' ~ 3 o M,... i,,d p L'.., q ! ;..', i~, ~..i.i's A n vii ei 7' '.

HOf.

h h

~ '

-I o

o a,

e,

e

~

ce=~=

n *

~

a o

om.

o

-o o

a

~

-ooooo o o o

. o ONO3]S/S3H3NI Nt All3013A OMAH A PU3l!( P0 wit DISTRl(T FORI CALH00.4 STAi!CN - UNIT N01 FIG.F-2 RESPONSE SPECTRA

' M AXIM UM HYPOTHETICAL EARTHO.UAKE

5 o

O;.'f.:

t. '.i.. i :.- Q

- 4..r v.

.i

,2

', 4,. w 3 p., -

_t..,r,. v. 7.. c - <

i 4

i v

. e

__ o t

x.

.3

,- 4..;

. _. =

i.

c.

.i s*

y

/

v ~y - <. -

.u

".". a.

4.

.. ~.. ~ ~

~

a. V.i y

?.* a o

t

• 4 il /:

,/ /,e4 }' p ;,,,(., s,,8

'.,m g b;, T s. go

, / j. "

'~

-a

• g

%,< G x ;s),':,'. Q..e,q.!

p:

. t..,p m,( p,;

w.~..\\ 04 2

.=o t

c-.-

,/

'{'

fo.klAj.l.'/ N/ l s,'/, ' i.' }{..

'^

/ l

}'/,. = '

/ A/ /. /. e *., f M ' 4 / } gi o

f,p '['s p.Ns, '.,f eh

' Q* i /

b>8 "E "

n i /.k ,/ 4 % = '.,;'s:d,s[.Ih','\\x'

[s

'. /f /, '--

'S '

y/

t

/

e.u,... /.,,.

x, v, N O-

/, /

/.. s 4.. g/,!. i. s4.

.o,.. y.,,-

I ' ' f,,90/ / ( y, ; /., f.,-

,..c. y i

p y

... %,,y(,

_,....,.os,s....'.

_--/', 1 A,' ' N.'

s m

.o

-r o

c~

,,o

/ /.'_

u, O

., e. e. _. - - -'4

• r

~

m..... -

.o..

-/

.y. ; j-.i.

i S,

C s~

',[. 'g (

s.

../ / / /,'

i

\\,.

./-

V's -

,x

/.,...<. / </

..., /*7

.,<, i i y y ;s

.g.s,,,<

.y t < ~

~.,a.

,a.

a#

w

\\. jj,

9',.,'**,'

..'.I'f,,\\. s ' /

• g gC

-O,

.\\ '

Y l '/,'( g ', #

's

, /, ]/

g g

g a

a = '.

g'/, '\\

1

,1.>.,

D \\ *.

' / X. ^)/ y ?' 3. p's *l, 'A y J..'

/\\' r. \\ -N, d". ' =

s %

e l

'% *w

'*2 Ns s.s

'y

-4F o

_r-s g

/

t

. <,. ' ~

N

-. _v

/o 0

W,.

. -5

. g,z

, C '- /

l'y,f..'.,b",.s",,

J, s /.,:'~=5 o,

. j,,h/

',s. y o - l/ ',.N-f 4'., Q,,l

/</,.,'i %...y

/ %p. y 32,,.' C,..N

' y. l.:

s 4

g

. l O2 s.,' g.

s... s

,, =

o s.

. s

&j l

'E, S

f *'/ Y /,/','hlDslv\\l&. \\f/ ' -

~-

• ^

l

,x, s I

ye

' ',,. s 4p

• /',A

}e'S<. %

,N',y <',(% /.')(A,7f. /

z O d *, t o y

[/

/

('

h s\\f ' * %. ' ' f<,

,2-0; m

A

\\

/ s \\ % %f,/-

ef. %.a'o '.*

y 0 2/., 33 T /' ' = N.'. ?z.," :, % ' '

/

3 f

I D,f.Qf. o % 5 / %,t

-O

/'/ )*'s

t

~

\\

. o 1

\\,,4 i

/

g.p.9, s.<o :

O =.4 A. <. / 't /

i oN.A /t N.

u M

c:-

's e

/

s s

D y

• _ s.

s 5, z-fI

,gog,.

s s

a s.

u 7 g ly 1 v

s s

o" ~

g3 -

r. :. -

p

?

~

4 ;,.,',~,,;,

, /

O s

-o z

j p-

.sl.

.f,

,,s

,gy 4 CD,,

O

.s,,g g_

g i g N

Q.

'. E La.

s sd/,k f'y

!// ODIN,4 '

'f*

s@g u

~~.--

./ \\

\\ //

/ / \\ *, \\ K N.

k' N

J g

z o

'^

\\/5o. y

/j[

[ /N s\\ [ \\

's

$/,.[ 2,.' h ' ' I [I#D* * '3. Ngri,.\\

,4

',(

'y ' s t".

.a'.8 : s~o ~f y',v.

/

, >.,, /w. ;g O s g:

y /,

x,,, s,. y,su,g.,, :. - s. \\.

n v;,e

/

u. s. -

r s

~ _.

n..

g 9

[

".,f f

i 7,5 y.

m Q:

y

~ --

n<-,. W W A

.EK i e/d X W

' T,i \\!M,'i. o.m.a K, +'s MMT a n., :, g,a n n.c:=

=-

\\.

m v

~

m

/

/ /

/,

/ /

,' w,

• w;< <,n., ' '<:/rv m' e, #

x,

' u w % 4,;x /yA' /,

' x/ /,a e --.

m c

^s

N y,

^A X

' Q, 'U.e.t

/.

T._.,.

s s,

s

.s 4/

l,.

g s-

. g%e. **,F

+

^

O o, 7

_ Am

,, c,

,g

x g,

s

-s

. yf.,' I ?V.s..

,'.s A, s..tl %. '.C,

-ax',',' 4

}

-'f.

i,

s.. s..

- f,

_ ; s.

s u

r - '- )

- y

. ~ ---g

,.{.. O,..A.

.. g. 4

', i.<. ;

i e v /,,

4 L.,

.'p.,.f

,Op.-,n,

r v

,. - ;m;*,'s so g

a.

44

~o 6

m

.; \\t, N g,. ~j/

.. A.gy-

)..q.i )'.y.'..A / },'. p ( *., *;

f f t < r, Qts, y' t _ s s.,g,

a

, ;q s

X.~.

• U.s..pY., # ; i d.' {M, ff if'.

i.

s L.,.

- o o

~f A

! 'j,

'Q, f 'h0' ' d, \\,.T/'.5 A

-.. ' -r,'

s p

/

s

-, ?.,,~=,O Lit;-.

QS. j' 5..

/ f l#

, [, Q i y',.q,

\\'Va

,s

,g

/ j

/ j", ',.

',v/,/j(O

• .x

\\

0

/ +

o kHc, - k.

, \\

-,., f k.T C=

l st gl.O

• s 3

f.a p

q

_. O

/ o....

C I. p. e:/

s; Xv ' t, k.,.

s/ i 's l

//l'.%%'L I 1/.

's

,,.-, - 4...,y. f f{.%p. / ;f,0

,s " ';'Q.'. E

• Y 2

4 wo a ;:,'

. 8

/ vA'f e [ ' 'x. 1. s d,sv, s...

.go*,. / > m.'== 3 e

N i 9.

i f, /,p>Q ;..,.

s

i. - \\;

t. g.. ~.j

, L:.

y, f)' /,,4;/'

/ \\ '('

• 'l.-

(. * /\\../-

o

,$. t. /.r. 'o-o,, y;

[ 'N [I 6 */*

f f q

r. p I.

56 8

N Q qs y.

c/,/~

iv

,i

.\\q ;.w

/ y~,g...s ;e

/ ~s o

y, t s. a;

' ; s.,

.s

- ~:

.\\ /, n.,

/

s m'l i

s -

/

l g

Qi1.,

6'. a pe I

. f 3. x's,Q 'r ? '\\I h b, f'

's-

, ' 'y I

f'

.s /

[

i s'

.N

.s s,

t.

q.

f..

.N-(g w

e

!! !! ! * ! !s l ' l ! 'l.".IH f f l I l ! ! ! ! I i 1 ' b "."'I

,'{'8. N'l..'l' I f. l-lli ' ll ! O l i I.

'!! N

.'!' ' !! I ii 1

o __ lli

.w

..si

-0 0 0 e n w n

N e o e n

N O 'M e >= w n

• M N

O o

O #' e P O

• OOO O O O

O Q

CNO335/S3M3NI fel All3013 A i-OMAHA PU3 tlc PCWit CISTRICT f02I (ALHOUN stall 0N.UNii NQ1 RESPONSE SPECTRA FIG.

F-1 D ESIGN EARTHO.UAKE

J-ely 1971 nib.

!" 6 II **'s L laa. 30 Ott?t mi__ g Et. li t4' O Siis 11.801T

/

0 1835, O '2 SS s Et IOST Ul 9

h O

in "J :

f.

.m3 ;

OS$1 y 3

EL.1011 0

g i

COM)

..0 10A CF MAT

. rop or. 6 TAT O.1353 Et 99f O*

O B359

013s, et 9 a,,5.o*

vt2i ASSOLuTE ACCELEEtrlOV.Ot?9 l Vect A6soLOTE ACCEttcAT104 003} l VERT ASSOLOTE ACCELEUTIOU+0 t293l 3

IUTEEUAL STGUCTUEE.

COUTAluMEllT SLIELL ALRILIAEY PaulLOlMG WITWld COlJTAIUMEMT e MAT

~

4 M A.T woerzouTAL

• VERTICAL ABSOLUTE ACCELEEATious uOte:

lAs uTE-1u0020 BY MWIMUM HYR]THE[lCAL EAETHOOAEE GCOUuo ycg]Tj]',w2r g5,c g9 g AccELEaTIOU OF 177 3 40RI Z0tJTA1.4 Il3M t VERTICAL eaninoowe ces.ouc uO.t%25 3 3s r, iMPauG FACTOQ ASSOMEDs 5% Fce tuTEEUAL STCUCTURE-VJl1Wlu CodTAIMMEW T.

00Ei2OdTA1. APACLO1E ACCELt2if'OuS LT 27, FOR COMTAluMEul SIEl.L-LEVELS OTHE-Q 14AO THO5E Sh'u MAY eh 5% FOR AuttLIART SonLOlHG t MAT Celeeututo of Dirat<1 peoPORTiouiuc.

Ot4AWA PUBLIC FOWER DIST28CT HORl2OMT AL

• VERT ICAL 22,50t.oT E.tCC(:LE;2 ATIOuS C-FOOT CALHOOO STATiou duli uo. I sucocED eft Mat ttpotusticst swisao0 AtG

/ D 5b C)

."'.L',I'.:'g':':" :#:",

.g........ cig omms,mu.s,Lucanmm a mc2m:rr>sou,mc. TE'.'."fs s.Se on..,....

..... on.co n405 3

";"-"~ Illlaa nunna manussaa o au. u aanu "iE7M

..n 7

....m.

tigere t.."#

e***'.

1 l!

• t7*

/.

't*

=l

e e

3;,,

g.

,q r.

. e * *.. p g a **.

e

• k f

I8 jl.

l i

d e

EL. ll3 I s sy s',te

/

.au 1. e-i.t si..

10 a

% _[@ g, _

O euor O'2iS e mt, 0 '2513 Et LOT 2' g

I

-' Ei.tobT I

h COO *)Op I)

I) me O STS g g-061 g g

l'-'" ecd 2F 8

_m,,

7 ELIOiT d

.OOSG3 O

.si TCD CF-WAT M '# MAI O tG7, ELMl".O*

O ISS, 3,_,

eici,

_ e..e s e' o_

sf ET AftSOlu1F ACCELERAT104 0359tl VEET ASSOLUTE ACCElecATIOu.00 9; l VtCT Af5 SOLUTE ACCitERATIOM 006Sg l 10TE2UAL ST20CTUEE COUTAIUMEUT SHEl.L ALKILIAeY edlLOluG VJITWlU COUTlklut&UT e IAAT e M A.T O'E Hoel2cLJTAL VERTICAL AesowTE ACCELERATIOMS Eo2 h,2Ount e seaticAt Ae,sotore IL;OOCEO BY CESIGU EAETwouwE G EDOMO Acceteer.Tious iucocec ey uviuus ACCELERATIOM OF St, HOGl20LJTAL t 533%) VERTICtt.

6hPOTHETICat EARTHQUAKE SEE CAMPluci FACTOR AssuMEO i'1% 5M ALL STcuctu2ES.

NCuo @Sa>SM SCcilouTAL ASSOLUTE-ACCELECATOJS AT LE.itS OTHER T6 TAU i+47* 5.WJ.JW MAY fW CETERMiuEO SY ottect mocertousuC cwuA. POSUC PCNER DISTRICT HORt2Ouis.L a v9ef tCAL Ae,50 LOTE-ACCELE* RATS. jus 2

2 FOOT CAtt4000 STATioM UulT Moi luCUCEO SY OEsitu EAR TuOdit'E (O B E)

.. m........... o u o............... cra em:

" " "a re r

.T L'#::"f: ::::*.'."::.'."???~-~ W can==.mts,vumm a memnm:ow.mc. *"~A h >s

...., ~

a uunin twan,ina===

P&aure F-48 7

,.. y...,... 7 3,

..g g n.

.7 f

l.b i1f f f

O

,s CLNJ.M !N Mim<b E *J t *: :. 2 E..

'O 8

• I E 'q

• • • I

• t s s M C" 3

I 1 i s.t,

• S.t,i

_N._._n 2

• • 1

'd

._ - -_ u J e

-.'-6 a

.,.,i_....

..- - o.

n.

n. n

n. a.

c.... a. a.

- c. o.

o. a. - - a.o.

- n. c. (

. o... _.. _2.....

2. - - 2 2 2 2 2 - -. 2 2

-2 2 - 2 2. - _.. 2 2 -- -- 2 2 Or. -

a id 444<.<

_4 4

.4 4 l

l'

'9 _ A O 4 ~__ Dm.. O D OO OO OG O

OOO g g.. e p.

o.. og, _.. o e o. __ __ _- - e..a._e-*

as

_...3

~~....NN vqc auL. '._.. _ _.

_.e..

3....

f

'no

..].

4 - _..j -- { -- ;.

4-j r.A L N-.

.._.. _.... j

,g

.a

.4-.

-p

{N

. p1

_i...-..'-.

_.[..,...-.

m...._..

.._.._y

. _ _.. p

. j........ lt5

.\\ -..,Q,m

}I

. Ig l

ti.:y

.a Oi !

q

- "g ) -.....$. _~.. g 4

-.h u p '.

l

- a3 4.-. _..

g. _. g _.1..

4

_o s p,_._.. _.

y n t.-... - -_.

l>.-

.q.$

. g

.~ _-

-.... ~..

3 g

-.. j I -.

-.. k -

J-

. 8.

h a._..

n;.....

• b

~

.. _. 1... g

.. - a as 1

. _.. $ ? -

.c

(!

g

.,q

.._..... 3 3,

__j

~

.'{....,...

a 1

3 2s

(

{\\$

g l.3 ;

I-1

- f..

... k

.._a j

'1 5

4,--

e

.I_.-..--

u, 6 - _

is 3g-

...'.-__.,,a h

e g

9

.w

. _.. _.. g

.. g

_.._.-.._,t E s '..A'..

1 _. -._:..~_~._

,..g

..a, l

.. ~. _ ~.-.4s

~

^

~.

.p

_g p

p __..._.

s p.,

j

~

...._.. 2 s

• h s, y 4-.,

p -

u

, k

. M k,*v -

-D.__h _.

g g

f.

---

._--a

.,,.7.., 5

....._..1 1 % ".

>t iI.

.,&.'.... }.

Q U,..

'i g

g g

llj k

k

.' ! l } ' l.....

I

\\

f

-- -.'._... k l

___..._.)

. s g..

w._.

p _._.. - -

g g.. _ _ _.

(g, g

g w.. _.

g, s.

. g g.__

, [.,..

1

__ _. 4. !

g J.

__ tg=.

{.,,

.a s

y:.,

grq, j

--i -

._.2..._.

i,.t16-

. u --

.l +

-l...

ioi.

1. : :

.p

, i!.

1

..-r Jg

~~

.ap Ja

_..3 As

f 2e

.s

[

Jj C

,... ' L_

3 I.

4

.**4, J

As

. g.. _ g g

L - j.

\\

i as

. ;.... - _ p...... 3 t___._

_ [.i.;

a._a -

...L._i i g.. _.i4_..,

2 j

,9. _,

m a

-n

._.j'

l-...L t_, ;.i ;

.t

't:

p,.

\\

(

; tru['.,~. c l !';}t i

.],. l l,

l.

g

(. _L.._

r; i l*,r l

~'

,,r.

A T..

2

.r...

.,..o a

n.. u

,.cus 3

3 33333q g

ggg___. jg Ct':tRENT IN AWERES f

TOTAL CLEARING TIME-CURRENT CHARACTERISTIC CURVES BUSSMANN MFG. DIVISION mc..u..

c St. Louis 7. Ma for I

BUSS ONE. TIME FUSES

=~

~

,,. '_f_pRM._15 2 Type NOS 600 Volt

o..._4_.2 7.,6 7

._e

. - ~

i 6

,i

..y 3,;

9 I

Ct ef.f.5 r ;'t l'.t"P,

• a x 3).

a v.'

F y: g 3..g a ~.-L 'a f

~,. 3._:.?..e.

e

'.t

..-- a.s..

t.s se ?.s_n W.

22

....... _. _._s..

.a. _s...t_.:z31

.g y~_..

,3...

O

.tw

.... y e.

u; gg p.. O.

. s.f.o O O ~

~ " * ~ ".

• e.,n....

-..y 4

. y n

,5 g..

.4g

.... _. g. _. g. -. g.

t4

..g.

.... h+h l

1, 4. $.

s, p

I w.. f.._. 7....

1 i-

.zt.

t i

- i>

t

...g g.

g m.

s D.

l' y

6 g..

e 4....

.!.,. j...:'._. u'

..y f

/.1

,. _1

[.d

/

yL

(

),

y

.,,.l.

[.. i, 1

y;,.-. 3, _.

3......

3

_ g.g.. -,-

g E

3.

.. _ 1;,.,,

.j...;.. :: ;

s.,

n

.c a.

) _. - g j.j g _ (.

a i_.

_.g..--

g. g..... ~ _.,...,J g

h

.q 4,

[... _ h.

it. h 1,

. ~ _ _....

1

_.m...

[_.

3

.i

._...._....,o

..o_..

. _ _... e u,..___.

}..-.. _....,.

7.,_...

.., _.. f.

4 g

4 4 sl..:

.__a 3

.I

.l

. b, f,

L_.4 _ v..

...h. i. ' '._...

1 e

,( _... __ P. :_. g d,

_..p j _ s

..a

,,_t.

.. a.

.....2-1 i ?!

h

(

3.

...h.

a 4 {..

_4.. i l.

'i i.

i

~,..

f.

m

)

4

-g

.'1.,

i.

3 b

1 l

...ig

.._._...is i

%. 4.k..

.p...

,n.;

. __ - E

,7._.._

8...- l --** f' --

• g -- -- {.

at.._- s_

s f.

1-

-,--.-*_..s----*----*.*==-_..--..-..._8, 6

- - * * ~ * -.---**

t

' h.-..

..__.'s.:

h,. j..M._.

.8....

u _.

m.

_ k

..J f.

p.. (

6 d

_t g

- 3,L_.........._.._...

g e.

o.;.,

2.

v 7

........ _.g.. g

. g _.....;. 9..

. g..

g g.

4 3

g g

...... 7....,...

g.

n._ y...

.a.

g.. :; a.. g _ _.

= _ _.

8 ) i }.:'_.,lt '._ '

I 4 n a

g e

.. ;.. i g

y' 2 "-r

p.,..

%..,,, k.

.i

= ; '

!!- -i l s

! i s

J p

y 1

' _,t

.,... z. i- [__

g, ;,,.,,g g w

t a.

! - t. - 1

a. :. t t., :

l g.

.f,,....,

g;

r. 9,. t, [.. - {.. !......

4'.g g..,.....1...

k,

.,i.

3.

g.

g..

3.,

..: i.

.,L.,_...

__ ~. _. _ p.. g

....._ _...,p _... g. _... 3,\\

n.n

.. og

...c w

3 4

g

,, 7.

b - j,i

_.g..,_._

... _ _ _.,..t__,.

.t

_,t 4

p J.

4 4

.e i

i 1

1,

6.

i g

,e 4

. 4-

.,l u..

.. g 3

3 [..__.._..._._........ _,..,, y

..s.

g g

g g,s9.).

.. _ ;. _..... y

_ _.f n. y -.,_.i_.,-_..,,'-

.. i

...a'.

-. i (s

.. _. _ g __,. \\ A._.

- '..u _!

8 1

).

I e

L A

-a i ' g. i. (. :d.,,.-\\ --

., Q

-~~l 2

.l.t.

r. :1...j. : :.. '- --r.,.si--

& j

!, J q i.

FF.. j w. :.

8

d. j l. i. t. ;_.-i..n. h t

i

- ~ ~ ~ ~ -

,.___.s...

, +- ~1 8

l l 9,. _..,..... {... I,...,_. g g l. l. l

..._ g

... i.. l.. - _..

g.

.,, g.i

,g

,,. ; i, y r.

..,, __ 6 _--...'ig. _.... \\..'o...'.3.

_---- J *;

\\

n.

... 4 --..

r, a

..z.

- _.. s c

s y.._._.._._y n,_

i,

.... _b.

_....,.,_ ] ;

..i-

. i m,

p ' _., _ t

.. q.. __;

.t

,.g.4.

)......

=

4. ;. :..a, ___

7,..... ; _..

. m.,.

..9 2

w,.._..._.__...__.

g

. Q.. _..'._.,. _..t e. t.{..v.i g i

g

).

j.J 6 m

. i i

i i t

...t_.

m st as.- l l y* : ) _

• ;. [.

,. l t t j..- * : s - '..;..

.t i

I k

1, i

- g..

.J

_. g*

i i-4 i.i; 1,....

h F8'

1.,,. }. h _.1

+-

6 i

s'

.\\

a..,

a,_ -. 1,, l,..

.._..'A.._

g

,.,.l13'..l....

_.. - 1 g

i

,l,_-..

4._. -. !

.4

4

s.. l,,.

..t l

y

=

g ;..., e g

...3.-=..s

.s 4

• .ei.

e.o

s is

.a

.m l

~

ct ioo n : : e cat.5 " T5 AVERAGE MELTING

.WE.f ROT CilARACd NT:C CURVES BUSSMANN MFG. Olvi$10N r., _ MIC, MIJ & MIN.... INO C ATING.

-.r.

ca. i.

• %..u c.._ sue

7. m BAES TOR DAT % Nahrde.

C.; 2J t.

Tw. made.:.

. J 'se em se p.t. 5'a. tans at 23C ma ne init..I 1ud N

.50040 2.

C.r are phJ to -

-.--- Toa pe;sts w war.ece shs.JJ h Dece

• 0 *l4 ~ 74.. _.....

m