Text

Rept of Evaluation of Effects of Radio Frequency Interference on Digital Solid State Sys
	ML20133K882
Person / Time
Site:	Hope Creek
Issue date:	10/02/1985
From:	Van Staveren D; Public Service Enterprise Group
To:	;
Shared Package
ML20133K867	List: ML20133K863; ML20133K882;
References
	NUDOCS 8510220334
	Download: ML20133K882 (65)
	v • d • e

>

EI J'cEI)PS9336 October 2 1985 10355 - HOPE CREEK GENERA #cI!!G STATIO!

REPORT OF EVALUATIO:: OF EFFECTS OF RFI 0:: DIGITAL SOLID STATE SYSTEMS, 85 gO]O 34 D.A. van Staveren E

e-,

. - _..,,, @ g,.,, g c, IJ < y 3

m J

CONTE::TS PARAGRAPH PAGE S1.0 SU:CIARY - GE::ERAL 1

S2.0 SYSTEMS TESTED 2

S3.0 TEST EQUIPME::T AND '.ETHODOLOGY 2

S4.0 TEST RESULTS 2

55.0 WELDING EQUIPME::T 3

S6.0 CO:;CLUSIO::

3 1.0 PREFACE 4

2.0 OBJECTIVE A';D SCOPE 4

3.0 CAUSE A::D EFFECT 5

4.0 WORK SCOPE FOR RFI EVALUATION AND TESTING 7

5.0 A!;ALYSIS OF II;CIPIE::T I !JECTION OF RFI INTO PLA!!T CABLI::G.

9 TABULATION OF OKONITE CABLE TESTS AND RESULTS GRAPHS 16 6.0 SYSTEMS CARDS TESTS 31 RFI LABORATORY TEST DATA 35 7.0 JO3-SITE VERIFICATION TESTING 48 8.0 TEST lETHOD 50 9.0 TEST EQUIPME::T USED 52 10.0 RFI FIELD TEST DATA 53 11.0 WELDING EQUIPMENT 62 12.0 OTHER ON-SITE RADIO EQUIPMENT 63 13.0 ZONING 63

G:1 3 65d P S 9 3 3 6 HOPE CREEK GENERATING STATION

SUMMARY

OF EVALUATION OF EFFECTS OF RFI ON DIGITAL SOLID STATE LOGIC SYSTE"5 4

S1.0 GENERAL S1.1 In response to the Nuclear Regulatory Commission's (NRC) i request at the March 15 1985 meeting at Hope Creek to undertake an evaluation of the effects of Radio Frequency Interference (RFI), a program was developed that entailed a f

review of 1E solid state logic systems that could be

]

affected by transmissions from radio usage in the station.

This followed the Electromagnetic Interference (EMI) study t

which was the subject of the March 15 meeting and the same I

systems were selected for the RFI study.

f i

i I

l S1.2 The RFI study was undertaken in two pnases. The first of these established base line threshold data by taking

[

components of each system and sub]ecting them to a 1

laboratory test.at the premises of a consultant

{

specializing in this field.

[

I l

i S1.3 The second phase, dependent on the results of the first phase, determined the need for zoning areas that contain f

equipment that could be upset if the use of radios were

{

permitted.

S1.4 Field testing was undertaken to test the attenuation factor i

of the rebar in the concrete walls surrounding the proposed zones to verify the boundary's, outside of which the use of f

3 radios.would be permitted.

+

i t !

C5I JSEU?8b330 S2.0 SYSTEMS TESTED The systems selected for testing were:

1.

Bailey 862 Solid State Logic System 2.

GE Redundant Reactivity Control System (RRCS) 3.

Consolidated Controls Emergency Load Sequencer. (ELS) 53.0 TEST EQUIPMENT AND METHODOLOGY The equipment used for testing at the consultants laboratory and field testi~ng was similar and the methodology followed the same principles in that power to the transmitting antennae was increased gradually from zero to avoid the possibility of inadvertently activating equipment or causing a catastrophic failure of components.

S4.0 TEST RESULTS S4.1 Bailey 862 Solid State Locic System One of the cards tested at the consultants laboratory failed in that it responded to RFI. The lower equipment room on the 102 ft level will therefore be zoned.

On-site verification testing showed that radio transmissions did not penetrate the rebar in the concrete wall in sufficient strength to cause a problem..

54.2 ERCS Nine cards were. tested and some failed at low levels of RFI. Therefore, the control equipment room on the 163 ft, level will be zoned. On-site verification testing again showed that transmissions through the wall of this equipment room were not sufficient to cause a problem.

S4.3 Emercency Load Secuencer Two cards were tested at the consultants l'aboratory. At 150 MHz, failures occurred that indicated the rooms in which they are-located should be zoned. However the verification testing did not demonstrate the same failures, probably due to the shielding effect of the card cages.

Further testing inside the room showed that the ELS was immune at both frequencies. Therefore the ELS rooms will not be zoned.

SS.O

'ELDING EOL'IPMENT n

Evaluation of the effects of welding equipment show that a 15 f t boundary must be observed at all times between the welding unit and the control systems panels or cables. Also the welder cables should-be run_close together from the welding. unit to a point no further than 5 ft from the control systems panels or cables before attaching the ground clamp. This will prevent the formation of a large

" loop antenna" and avoid induced voltages getting into equipment.

56.0 CONCLUSION

The upper and lower equipment rooms and main control room will be designated as radio f ree areas. In addition, the cable spreading rooms.and the inverter rooms will be zoned.

n HOPE CREEK GENERATING STATION REPORT OF EVALUATION OF EFFECTS OF RFI ON DIGITAL SOLID STATE LOGIC SYSTEMS 1.0 PREFACE This report was prepared in response to the request by tne NRC to undertake a study to evaluate the effects of Radio Frequency Interference (RFI) as a follow up to the resolution of the EMI effects on the Bailey 862 solid state logic system.

2.0 OBJECTIVE AND SCOPE 2.1 The potential for RFI is enhanced in proportion to the amount of sophisticated electronic equipment in service at any plant. The proliferation of digital solid state systems at Hope Creek has created the need tc conduct a study to determine the effects of RFI both on the systems and the cables connected to them.

2.2 The objective of the study was to determine the mit:imum i

levels of energy radiating from fixed or walkie talkie antennae that would affect either the printed circuit cards or the cabling to cause a malfunction and depending on the nature and location of this, to develop administrative procedures to prohibit the use of radios in those zones.

2.3 The scope of the evaluation covers the same digital solid l

state logic systems that were the subject of the EMI study, i.e.

Bailey 862 Solid State Logic system, GE Redundant Reactivity Control System (RRCS) and the Consolidated l

Controls Corporation Emergency Load Sequencer (ELS).

l

[

l <

I

.=

4 3.0 CAUSE A!;D EFFECT 4

j

'3.1 There are two frequencies in use at Hope Creek. The operations frequency is.in the 450 MHz range and includes the fixed antennae and repeater stations.

The security I

frequency is in the 150 MHz range. Based on established j

j data and verified by laboratory tests by the consultant, the 150 MH:: security system is considered the worst threat.

P 3.2 The power output from the' transceivers in use at Hope Creek d

is typically 5 watts, corresponding to a field strength of:

l E = 7.02 p /2/D = 15.7 Volts / meter (v/m) for'p = 5 watts at 1

i D= 1 meter.

5 f

i 3.3 That E is f or a dipole antenna, the efficiency of which is l

approximated but not equaled by practical "walkie talkie" f

t t

antennae; 15.7 V/m is the practical maximum (worst case)

" free space" field strength for p 1m, l

5 watts, D

=

assuming a fully charged power unit.

I L

l 3.4 Consideration has been given to the ef f ects of other radio i

f transmissions such as shipping in the Delaware river and

{

public services such as police, fire and ambulance. These l

l have been discounted on the basis of the shielding and r

i L

subsequent attenuation by the rebar in the concrete l

structure.

p I

l l

3.5 Another potential' problem is the use of welding equipment.

1 The welders that will be in use at Hope Creek, output RF*at j

between 1 and 2 MHz. This low frequency will tend to l

I penetrate cables more readily than the two frequencies of i

r 150 and 450 MHz. However, proper administrative procedures l

will prevent any upset. This is dealt with under section j

j 11.0.

t f

I t

I i !

i i

I I

j i

CG J250?89336 3.6 The effect of the two radio systems in operation at Hope I

Creek have to be considered on both analog and digital equipment. There are tr ae factors to consider.

i 3.6.1 Cabinet doors coen.

t In this condition it is known from tests done by, Bailey and the consultant, that the analog and digital systems are susceptible to low levels of RFI to the extent that L

catastrophic failures could occur. Therefore, the systems that can be affected in this way will be zoned to the extent that radio usage with doors open will not be permitted.

3.6.2 Cabinet doors closed.

Some testing on individual cabinets was done at various vendors but testing of a complete system was left to be i

j done at Hope Creek.

i i

3.6.3 Incut cables.

1 I

1 Tests done by the consultant (section 5) show that on Okonite cables there is a level of energy tha_t could cause i

j a malfunction and one of the objectives of the field 3

testing was to evaluate the extent to which this has a detrimental effect, if any, on the system, as the i

configuration of the installation could significantly

{

l j

increase or decrease the effects. There should be no l

detrimental effects on the analog system due to the shielding of these cables and there are no unshielded 4

cables outside the panels themselves.

l 1

l i

i i,

i I

}

i l

i~, - _ -._,, _.___ _.. - --_-.,., -.--._ ____.__..... _ _ -_ _ _ _ _ _ _,_..._- _ __._, _._.-,.-.- -..---.-.

m 4.0 WORK SCOPE FOR RFI EVALUATION AND TESTING i

The scope of work and procedures outlined below were utilized in the evaluation of the threat of RFI at Hope Creek. The work was undertaken jointly between Bechtel and the same consultant that assisted with the EMI evaluation, and was carried out at Bechtels offices, the consultant's

~1aboratory and the j ob-site.

1 l

l 4.1 Control'Ecuicment Data and Analvsis i

4.1.1 Assemble documentation package to include: manufacturers j

schematics of the three 1E systems and communications and security radio systems; circuit board layouts; O & M i

manuals; system block diagrams.

l 4.1.2 Perform a technical review of 4.1.1 material to identify.

potential problem areas.

4.1.3 Assemble RFI/EMI specifications imposed on the manufacturer of the system and RFI test results of celivered equipment.

I 4.1.4 Perforn a technical review of 4.1.3 material.

i

.t

)

4.2 Review and Analvsis of Site Data i

4 4.2.1 Assemble architectural drawing package, cable routing, s

equipment placement, building features and fixed antenna syste=s.

1 i

l 4.2.2 Perform a technical review of 4.2.1 material to determine 1

L areas of the plant that pose potential problems of RFI.

j

?

1 i

I t

8 1

i 1 4

V*

1

...-c...... ~

,., _ _...__._, = _ _ _ _. - _,. _. _.... - _, _ _.

- ~-.~

l

i 4.2.3 Review control systems locations to determine effective j

shielding by building, cabinets and distance.

i.

l 4.2.4 Determine f requency and. ef fective radiated power (ERP) of l

all on-site transmissions.

t 4

1 i

4.2.5 Evaluate RFI levels for welding equipment.

t i

4.3 Laboratory Testine i

i 4.3.1 Obtain sample P.C. cards of Bailey 862 system, GE RRCS and I'

ELS from jobsite for laboratory testing and analysis to j

determine base line data and threshold trip points.

t 4.3.2 Conduct experiments to determine the coupling of RF into plant cabling and the rate of attenuation with distance.

j l

j 4.3.3 Based on these test results, recommend fixes or establish areaa to be designated as radio free zones.

[

I i

4.4 Verification Testinc at Job Site

[

t L

i l

4.4.1 Carry out. site testing to verify that radios can be used j-r outside the zoned areas.

j i

i i

j 4.4.2 Install signs prohibiting the use of radios in these areas.

j i

l l

t r

i i

i t

i i

i f

{

[

v

_ +, - v m w = w v-vw,----vv-vwr+ - r e-v +

+,*w-em-----e*----ee-m,m------*rew----------*-e~ mew +m-v-e-=-wwwe r-r w w-r

i i

5.0 ANALYSIS OF INCIPIENT INJECTION OF RFI INTO PLANT CABLING 5.1 '

The cable installation at Hope Creek is largely composed of 12 or 14 conductor unshielded cables made by Okonite for the digital systems and twisted-shielded pairs for the analog systems. Traditionally, the analog system cables will not respond to incipient inj ection of RF signals. On the other hand, the unshielded cables may expect to be prone to such signals but much depends on the specified parameters for insulation, strands / conductor, the " twist" of the cable in the jacket, the way it is run on the tray or in conduit and the relative strength of the interfering signal.

5.2 In the worst case for RFI, a radio signal would have to be injected at a particular point where the phase angle of the signal is such that maximum power from the antenna would interfere with the process signal. Therefore, to create interference to a process circuit that relies on a pulse i

digital signal to create a change in that circuit state, the antenna must be transmitting at some minimum power requirement at a particular worst case location that will cause the signal to change state. The operating range i.e.

turn on/ turn off, of the Bailey 862 system, for example, is between 60v and 150v so the interfering signal must be greater than 60v to be able to cause a spurious turn on and must be maintained all the way to the input buffer and beyond to create a malfunction. The nature of the RF signal is such that severe attenuation of the energy will take place and as will be shown, this attenuation is in the J

range of 0.25 to 0.7 dB/ft, with the mean at 0.5 dB/ft.

Therefore, the circumstances and conditions necessary to cause a detrimental interference are very limited.

i.

t s -

f 5.3 WORST CASE COUPLING TO A LONG CABLE

.ggpgg33g i

5.3.1 The data given in the figure below is based on E.F Vance Coupling to shielded cables, New York: Wiley, 1978. There i

are analyses in that book which apply to unshielded cables, l

the result of which are used here.

5.3.2 The case of interest is when the height of the cdble oundle is much greater than than one-quarter wavelength above ground (steel walkway, etc.) [at 150 MHz, one quarter wave-l length is approximately 19.7", and at 450 MH::, one quarter wavelength is 6.56").

1 I

5.3.3 Using parameters applicable to Hope Creek, a maximum open-circuit voltage of approximately 0.8 volts is predicted at i

450 MH: and 3.2 volts at 150 MHz. However, this theory does j

not predict a decrease in induced open-circuit voltage due to moving the walkie talkie away from the open-circuit

]

measurement point, which typically may correspond to the f

input of the systems under scrutiny. Hence the need for 1

further experimentation.

l C ABLE SUIIDLE l

i I

l 4

1 i

v n

i i

t i

I i

i i

l

,,t,,,,,,,,,,<r f

1 i

2 EH.

2 WH/A << 1 e

V=

i E A /fr. HA > 1/4 (MAX) 7 0.8 To 3.2 V l

I eP=5W F = 455 MHZ t

l I

e t=

V /Zo Zo = 311a l

i 1

i WORST-CASE COUPLING TO A LONG CABLE i [

i i

i P

,--,,nmw+,_gr.n,v-~

---w---,------,+-~

r

-,-,,-,-,,,-p e

---.----n----,n-,-,

---,,--.e---,,m,.--,en,,,,-,w.,,mn----

--~a.--

v,

s t

5.4 Cable Cxceriments at Consultants Laboratory 5.4.1 The experiments on the Okonite cable carried out at the consultants laboratory were conducted to determine what level of voltage can be induced into the cable and how fact this induced voltage falls off. In practice, the

" measurement point" is the module at which likely upsets

]

will occur so the experiments also served the purpose of guiding the range over which upsets were to be sought during on-site testing. If, for exanple, it was determined l

at relatively close range that a module is just upretting

(

and that reducing the voltage by 10% eliminated the upset, there was no need to look more than six feet away from that I

threshold point for cdditional upset points. This j

assumption was shown to be true during the on-uite testing.

5.4.2 Test set-uo i

Fifty feet of Okonite cable was installed overhead along the length of the hallway at the consu'tants laboratory in i

order to determine the effects of RF signal injection into the cable. Another 50 ft of cable was installed on tho floor of the hallway and underneath that was aluminum foil to act as a simulation for rebar in the concrete wall or as a ground plane. The testing was in two parts. The first f

eight were the common modo tests using both cables, with the spectrum analyser located in the screen room to avoid j

the walkie talkie signals distorting the results.

For these tests,the conductors of both cablon werv tied together except for #6 which was connected to the spectrum i

analyser. Conductor #6 was selected as it was important to j

have the same conditions in each cable. The other nine tests used difforont configurations of loads at 50 ohms, 1K l

1 and SK ohms, on the Okonite cable terminations to test the effects of robar using the aluminum foil for thic purpose, i

f r

E f

I

1 1

]

Again the spectrum analyzer was located in the scroon room.

For those tests all conductors woro left open at one end of the cable with the ot-r end connected to the loads f rom j

conductor #6.

J 5.4.3 Test Results I

l

.he test results are depicted in the graphs on pages 17 -

7 j

30. Those graphs show the relaticnship of fiold strength to f

i distance along the cablo. The graph of tests 12 and 13 l

illustrates the decrosso in induced voltage across a 50-ohm f

j terminating resister at both 150 Int: and 450 !!H:. There is j

no ground plano (aluminum foil) for thoso data; however the j

j robar structuro on the floor of the hallway provided a l

{

partial ground plano.

l i

The ordinato scalo is in dBuV:

i dauV = 20 log 10(Induced Voltago/10-6,

3 so that e.g.

tno highest ordinate reading of 110 dBuV corresponds to 0.316 Volts Rf:S inducc:1 across tho 50 Ohm i

' resistor.

f I

i 5.4.4 Test M.

11 shows the induced voltaco increasing with a

(

f larger value of terminating resistor (in + 50 Ohns = 5.05K i

1 1

Onm. Relativo to the data given on testa 12 and 13, it in the value of terminating resistor which is largely l

responsible for the increased induced voltage and not the aluminum foil ground plano.

The tabulation of the graphs f

shows the various configurations of the connections to the

[

f foil, spoetrum analyser and icudi ote. The onorgy l

.et.,uotion of 0.25 do to 0.2 dD can c1 ear 1y ho soon.

l

\\

i I

I i.

i 12 I

i I

I

\\

5.5 Field Strencth of Walkie Talkies 5.5.1 The table below indicatos the field strength produced by the (fully charged) transceivors in use at !!opo Crock.

I U' IT TICLD STRE*:GTil Ca1cu1ated Meanured Scroon Outdoors Room 158.250 Mil:/4 W 14.0 15.9 7.1 456.375 !:H:/7.8 W 19.6 17.8 8.9 5.5.2 Outdcor measuromonts of field strength correlate well with theoretical calculations based on the expression for " free spaco" field strength 7.02 (P)1/2 E=

D wi.e r e E = Field strength in volts / motor P = Power in watts D = Distance frcm antenna in motors 5.5.3 Scroon room measurements do not correlate well with the above "f ree spaco" theory due to multiple reflections that occur in the scroon room; the risultant field at a given point in the vector addition of the direct and reflected wavos at that point. For examplo, a single 100% reflected !

N1 J dE0 ? 8b 3 3 8 wave can reduce the field strength to zero or double the field strength, depending on the length of path over which the reflected wave travels. When there are multiple paths, the reflected waves create a more complicated situation.

1 i

5.5.4 The test set-up in the screen room was calibrated at both l

158 and 456 M!!: and the field produced at the location of the test obj ect was compared with that predicted by theory j

so that a known offset could be applied to the theoretical i

value. The results are:

i UHF ( 4 56.375 !!!!:)

Actual Field Strength = Theoretical Field Strength + 3.0 dB l

(allowing for cable losses - 41.4% larger)

I VHF (158.250 M!l:)

Actual Field Strength = Theoretical Field Strength + 5.0 dB (allowing for cable ic ses - 77.8% larger) 5.5.5 In both cases, the field strength i n the screen room, as measured is larger than that predicted by " free space" theory. This is to be contrasted with the data on page 14 which shows the actual field below that calculated. The reason for this difference is the differing reflections for the room under the two conditions; e.g.,the transceiver 1

measurements entailed the presence of a person in the screen room.

5.5.6 In order to expedite testing, and not measure the actual field for each test, the theoretical E-field is recorded in the data sheets of the laboratory tests. For each test, one actual measurement was taken and is shown at the bottom of the test sheet.

n

,_n

5.5.7 It will be seen that the actual E-field is larger than the theoretical data on the sheets indicate and are larger tnan those given out by the Hope Creek transceivers. The reason for this is that firstly, without reflections - a condition which could be approximated in the plant - the field strengths at which testing was conducted is not much greater than the outdoor measurements shown on page 13. The same set of conditions do not exist at the job-site as occur in the screen room so it would not be a valid test to I

use screen room levels as the test criteria. Secondly, the l'

field strength at distances less than one meter is greater j

than that at D = 1 meter. The SAMA standard to which the tests were conducted specifies 10 V/m at the equipment l

boundary, t h ei Hope Creek transceivers put out a higher power so the tests were conducted to account for a worse case situation.

4 I

i h

1 J

TABULATION OF OKONITC CABLE TESTS Test

f Pol D_

Foil Cable 6-6 Notes Procram 1

450 V

D4 No Yes VERTP450 2

450 V

1m No Yes IIORZP450 3

450 H

D4 No Yes HORZR450 4

150 H

1m No Yes HORZA150 5

150 H

1m No Yes HORZD150 6

150 H

D4

!;o Yes HORZE150 7

150 V

h/4 No Yes VERTC150 6

150 V

1m No Yes VERTD150 9

150 V

D4 Yes No 50 ohm across input VT150604

~

10 150 V

74 Yes No 1K series 50 across inp VTH15060.4

~ ~/ 4 Yes No Sk series 50 across inp V5K15060.4 11 150 V

/

12 150 V

1m Yes No Spec. anal. ungrounded V30150 13 450 V

1m Yes No Foil only. S.A. grded V30450 14 450 V

1m Yes No Foil only.

S.A. ungrded VERTF450 15 150 V

1m Yes

o Spec. anal, ungrounded VERTF150 16 150 V

1m Yes No 6& foil rounded VERTG150 17 450 V

1m Yes No Foil and cable grounded VERTG450 V = Vertical polarization of dipole.

H = Horizontal polarization of dipole.

Refer to diagrams for physical arrangement.,

k g

_r.,_.

4 Ce t

1

+

LLJ ce p.-.

ce LaJ Ls3 g.

.e w

+

ce L

e t

+

/y t a.J g/

-- ce i

1

............................ 2..........

c, y/

. f wp-s',s

~~v Ms A~~

~~.q.~~

~~i N~~

~~N m~~

em

~~.O x-p ce 4.,~~

~~.+.~~

f

,/

~~La.J H~~

~~..................................p.........................~~

~~ce t~~

p

~~/p.~~

~~ce cv~~

~~.q.~~

~~l-7 l~~

ce

+

~~l Laj g...............g..........~~

~~....g...............g...............g...............g g,~~

~~t j~~

~~/j ce I~~

g

/

~~.+.~~

./

~~r t.~~

t

/.

~~l l~~

~~ce l~~

~~y ce 3~~

~~.q.~~

~~m W~~

~~r t7 Ce 8~~

~~I 5~~

~~5 Ce CQ CQ e~~

~~w e~~

~~e Ce Ce ce ce Ce C33 Co~~

~~-+-~~

-4

+

4-

~~-+-~~

+

~~LaJ LaJ LLJ LaJ L&J L4J l~~

~~Ce ce ce ce ce O~~

~~m O~~

~~Ce ce ce O~~

~~Ch CCe N~~

~~A3 L~~
-+.
+
-+.
-+-
+
4-I L
t i
18-
I ca J M P C 9 3 3 6 j
I i
h ce
+
Ld i
ce 6-=
I 1
ce Lu t
w h,".e W
t t
i
\\s%
e
.\\
.-e w
ce
+
i Lu
~~..........;...........l,..........i..........4............i.........~~
..........i Ce I
ce i
wg.
r s/s I<
ss
{
g c,.e Lu
{
......... 9..f........;.
e3 Ce m
ce 2
k m
re,s DJ
+
m
/
em t
z c.)
.O.
j c,
r
\\
Lu ce
\\
ce H
. s'p/s.
cq
+
+
s.
7
.s r
4 c,.e T
,i p
Lu 3..........g...........:.....,,....g..........<...........g..........;...........g g,
j ce J
=
[
l t
t 4-ce t
/
f.
i
~~s c,.e 3~~
.g3 gsj 1
.P y
ce I
s I
s s
I s
I ce i
cQ e%J CO
.-e
.-e
.-e w
Ce eD CD Ce Ce eD C'3 CD C.
+
+
+
+
+
+
+
-9
+
LM LM Ld Ld LAJ Ea8 LM Ld Ce r3 CD Ce ce s*3 CD c3 C4J w
CD Ce ce
~~3 C'D CD~~
.-e CP.
C C.
P
~~D lt*3 a'~~
+
+
+
+
+
+
+
+
i, 1
1 '
r 6
6 Y
t i
t l
\\
f f
W Ce L
+
l
\\
LLb l
_- ce 6.--
l c.
Ltj tra 6, *.
in
+
m ce
+
t L.As
[
C' ese l
we g
N
+
1
%g sN.
i g
s*
I ce s,#
M#,, e 4
l l
esa LtJ o.
to C
t."""""""""'"".?""'".""""."
m' f
r e2
=.
l N
fte Of,
+
e -.s s::
r t
3 4
L
(
Ce
.O.
.t
+
w t.LB ce L
F ce i
1 ru b
j
+
e
}
e W
e r
\\a ce 3
+
l..........................*................%).......
Ss.;J
[
g..........................g i
t r
s ce
/p/
r t
l l
t I
m
/
.+.
L
/
1 r
t 1
./
i ce r
l ce t
l
3
/
+
p,p*
1
.K3 t LJ
\\
3 I
I I
_ r;e
[
~~t.3~~
- cas i
l (Q
e'tJ W
w Ce
~~23 CD CD Ce I~~
+
4=
+
+
+
LAJ LAJ L LJ t AJ f
Go s:!a t%)
ma l
W
23
(*D CD 1
e W
W Y%
+
+
+
+
i i
r s
6 t
. l
)
4 1
-ce
-+.
LAJ sn e t-Ge LLJ LAJ ta.e ta.,
.p r/
p
/s
/,
ce
/
/
to 8..........................:..........................l.../......................i C'
C'
.o/
~~(s%s~~
,e
+
g g
s N
s%
1 ce em
+
!........................9..........................g................g.......!
LLJ W
ce w
g g
p#
a::3 ce N
y r***
LM
",",.a*.
em
+
m m
0 m
ce n.
i, (23 ce e
ce cv
/
+
/
/
t.
/.
c,.e
.s.................
......:..........................t..........................g t a s, g
g s% :
Cs 4
s.
e
s
'+=
N's l
s'%
I.
i
%g%s ce c,.e 3
.O I.
I g\\g l
l R&J
=t:s co I
I I
I Cs en e*u e
e as em CD
(*J ce
+
+
+
+
+9 LAJ SAJ tsh tab Go enn enn to
'=*
~~eD cp cp~~
=*
U%
03
+
4
+
.+..
w.-
e
~~i a~~
i i
i t
e Ce t
-e i
l tu Ce 6.=
]
Go L.A.J LA,2 j
64 e LA
+
t I
t 3.\\
]
t
\\
l l
\\
ce L
?
+
t 843
[
1 8...................i...................&....................l.../......n.....'..
3 C'
I 1
ce I
1
(
~~f-l~~
+
i I
\\
l i
i ce f
em i
gn
+
j l
1 L&3
)
LM g...................g...................g...................gon nonno.og
,4 Ce t
i i
PJ Ge m
'D M'
t l
Z
+
l l
e ce
.C.
t t
i
+
............................................................/...#p LAJ
[
ce d
s*,,".
ce
+
eq s
/p r
/
i
/
./
i 1
I Q$
s
.r 3....................g................p :...................l....................
g a s, a
g I
g l
l ce
}
p.a#,,*
d
+
+
e.:,
1 i
g l
t ;;e
=.
ce s
.o i
i ass t
I Ge
{
l
% ~1 r
I s
ce tu os eis
.-e i
4 Go t%s eD t%e tSD ce
}
+
+
+
+
+
+
44J laJ laJ l4A l a.)
I Ge EXs eLa e%e m
fQ
==.
e 3.7 Ce (5) i 1
=*
==*
==.
f.t.
CO l
+
.k
+
+
++*
I 4
t
(
n i
)
I 4
L 4.
=22 t
i l
i r
4
m
)
4 W
ce
+W ce 6--
ce w
w u.s ta.,
\\
t 4
i l
r i
m 4
w
.I i
i C'
ce
,t.
+
N s
g g
/, /s
!./
C' c
+
~~..........................!............g /...........!..........................!~~
W l
W ce p
g j
r3 ce t
w i
m rv.s w
.+.
==
l l
j m
c,..
n
.w 0
i u
c.
i ce c,v H
i i
4 l
N g
t ce s%s
+
j w
s g..........................>...................p tn..
..........................g g,
i
,,.,. p ce s.a * "*"'"
".9 i
.st'* %
4 1
j ce
==
c,.e
(
3 4
.[
W I
1
~~Q Ce 5~~
I a
ce l
l (4
eSJ ce o
c3 c3 ce
+
+
+
+
+
j LaJ LAJ LaJ W
i ce esa cs CD
==.*
~~23 t3D C3 W~~
W hI
.+.
.+.
l l
t 4
i.
l 4
r.c. t aa0?S9356 l
c.
+W i
ce t-ce LAJ LAJ u-.e La
+
f
/<
/
~
l
.,f ce
+
La.J c.
......\\.............
ce s
\\
w
+
I f
/s
.-e ce
+
s gn s.
A..............................................
- o i
g ce en m
m
.q c
H m
LaJ CD
=>
ce
.O.
+
j L,gJ H
ce L'1 c
L b
cv
.q l\\
\\
\\
ce
\\g
+
t a.J
.i..................
3..................g...................g....................
c, ce
/;p m
./
+
a7 ce 3
l/.
ce
=>
m
./
+
gaJ
=t p ca 3
a s
I I
Ce CQ
&J e
-e Cs o
o ce o
ce t
+
.+-
+
.+. L4J LAJ t AJ 1.a.J La.J ce o
en ce cp o
eD Ce CD en CCe N +
+ :
.f A
I
b W
Co
-+.
LAJ Ce g
o w
g w
g%
y =,e g s_
s
%s.
',. y p,,s s
s m
<s',
c.
t
-+.
4 g.,g.3 cs c.
l ry.
.+.
l"
/
m
./
ce f
/
.+.
LAJ f
................................../.....
_ ce
/
c.
/
/
ye
/
.q.
.j g
Ch N
g
.O.
g%
v
%g ce e
F o
-+-
to c
LLJ R
_ ce p
o m
{
e ce e
E cu
[
f ce gaj
.g...................g...
...............g...................g...................g g,
ce
/
c, c,.,
4 I La,3 ce t
g.
4 4
4 8
ce t'%J C%J w
~
~
Ce C53 C
Ce Q
Q
-4
-+-
t
.+-
+
-+-
-+.
LAJ LAJ LA.J LA.J L.A J G
CD eD Ce O
C53 e3 Ce Q
e"F%
CCe r%
=$-
-+- -+-
-+- oooo..................................O..........................................
l
\\
O
.e-L LJ ce w
T.
ce w
w
.f ga.
w
,N
+
./
,,,s ce
.+.
\\
g.13 ce
..................h................................ - ce
,\\
\\g.
wy.
.q.
'**,p' ce s/s' 4
g.AJ
.....,.,4.................
ca ce
./
p.
F f
e.
O N
.O.
.s e
O s
C s'
ce p
o
/s'
.e.
t,,1
/
~~w L~~
b-ce b
ce 4
s.
cv
.+.
N
,r>
o
.e w
g....................
....:..........................g..........................g g,
s ce m
.e.
c.
ce y
.q.
.s3 gAJ
=z y o
a s
ce C*J eJ OJ Ce eD CD CD ce
.+.
-+-
.+.
.+-
.+.
L.AJ 1 A.J 1 LJ 1 LJ O
eD O
CD CV CD CD C.r s
+
+
g Nw
L c;1.3E0?89536 c.
..-o wce A
x-co LAJ ss o.e m
m n
cts x,g 3
g-e.
i t
,a 3
,,/<.
cm g
+
j s
4 g_1,3
__ Ce o
ce ep ws-m
+
_,s--
3 3
ce (q
gr w
L.aJ
.............................................}
Ce
. /
cw
./
ce (ss f
p.
F.s g;--
.e
.e a
p
_g:-
_o.
o ce 6*
O g
w y
m c.
H r
g;.-
ce a
v cu l
eq e.
2-1
.g-ep g.g,
+
cz,
-+.
g...................g...............)...g....................
g.2.3
....................g g,
cs J
e.
/
s ce m
ce p
-e.
.5 g.4J t
c.
5 5
5 5
5 Co (Q
OJ OJ C%J Ce CD e23 ce CD cs
+
-+-
-e- -+-
LAJ 1AJ LAJ l J.J E AJ C.
CD e23 Ce CD F.e OJ Ce CD W
W W 9-
+
-+.
' l s
h I
t, I
r N
A
-N A.
m:
W O
r c,
LA C
r m
6n
-+-
[
T LA.2 Ge W
Ce g,A,3 g,AJ ga.
w
.q n
(g g
g s
i i
..e Ce o
/).
g.
.-r f.
g.,AJ s
f Ce
...........y.......
ce e
f r
/
g.gp
(
. /s v
5 q
t o
s
./
f c
%s p
f
/,
I G
t
/ -
e T
f f,/
\\
Ce n
M o
./
\\.
.q j,s.
......................T..
g,A,3 m
a ED
- Ce G
r*
t gn s.
Ce i-j s;.
(.
N r
l.
Me
.g.
.CC r4 i
m 5
5 r
1 eD
._e gn Ce s#s/
r v
.q i
LA,3
.............s..................
s s
- Ce s/.s
~~K*"">~~
,s Ce C
+
m r
css r4 g.
x r
eD k.
3 I
gn Co
.q LAJ
[...................[............
.....g...................i...................[
g Q
/
w f
.s.
./
/. /
Ce y
s ce 3
.g.
gn f
g,AJ t
Ce 5
5 5
5 5
Ce CsJ OJ Ce C53 8D Ce CD Ce
-+- + +
S.1J S.LJ S.AJ S.LJ S.A.3 Ce CD
<D Ce.
CD C53 eD Ce CD sJ%
CCs f%
+
=$- +.
4
N N
M F.a
=
m w
C c
CD 1.n m
.+.
v g
Cre
(
o 33,,,
m o
s
.+.
n f
w o
c r
f.
,y.
s in C,D g
w c
- CD c
o 5
m t
y,,
i
. ')
L I
.o b
O,.
m y
i w
p L
- o o
>l m,.
i.
CEs
.q.
w
......g...........
..g...............g...............g...............g
- g o
m r
i o
t o
+
. s w
e
-,,g y t
CD s
a a
a s
I CD N
N e
m m
CD CD CD C
c:s G3 CD
-*- -+-
.+.
-+-.+.
t.d LaJ W
t aJ 1 LJ W
I CD CD C
C C
C)
CD C
CD C
CD W
W Ch CO Ps
@ +
.+.
-+.
-+-..
3
ca j EUPS9336 N
N a
s.
E2 W
e g
Cs C
O e
4-ee
'T Ls.J Ce g\\
c.
h,,.s 4
/p f
/
/
/
/
c.
.+.
g,.4.,j c.
..........e c.
. g
,)l.
v
.+.
c.
+
w
'Og c.
r*
{
c.
. f M.
C
/
.+.
g:
s g
N,.
.O.
. g,g%.. %
\\.
p s
c.
to 1
/.
+
C.2
/
g.3.3 E*
/
./
c.
/..
c.
g,,,.
/
N,.
/
/-
./
L
./.
/,...
,s
/,s,s c.
4
,/
g.....
.....g.............:..... <,.....g............!.............,.............;.
g_13 g,
[
c.
t
.e f
c.
/
c.
g s
N
~~5 r~~
/
4
-\\.
g,.a.J
_g 3 c.
I s
s a
a s
s cs N
N G
c3 ao c3 CD CD CD Ce
+ -+-.+-
L.AJ Ltd LA.1 LAJ g.,s.J S s.J S.LJ Ce C
CD 8::D C
CD CD I
.--e CD CD CD CD C33 CD e
-t-
+ ~ -+-
.+-
-+- -
6.0 SYSTEMS CARD TESTS 6.0.1 The following tests were carried out to determine base line data and.also to establish thresholds for determining the need to zone areas that could be affected by radio transmissions. They were performed to comply with SAMA standard PMC.33.1-1978. All tests were carried out at 158.25 Mhz and 456.375 Mhz.
'l 6.0.2 The test set-up for each card was similar with some small variations depending on the type of input or the location of the test points, i
6.0.3 The procedure was to set the Equipment Under Test (EUT) on a stand in the screen room with an antenna of the selected frequency at one meter away in the horizontally polarized position. The EUT was then connected via plugs and sockets to an oscilloscope and digital voltmeter outside the screen room. See diagram on page 27 for typical arrangement.
6.0.4 In most cases the orientation of the card under test was arranged so that the antenna was at right angles to the front of the card. This would be the normal relationship of 1
the card and antenna of a walkie t a'l k i e. However, in the a
case of the Bailey cards, the trace side of the cards were also exposed to give these a more stringent test due to the significant role the Bailey system plays in the operation of the plant. It was in this position that the delay module failed.by a loss of timing function. (Refer to test data l
sheet in the Bailey section.)
i 6.0.5 The antenna was fed by a variable power amplifier through a wattmeter and the amplifier triggered by a walkie talkie or signal generator. The gain control on the amplifier was s '
turned to zero prior to any test, then slowly increased and the test equipment closely monitored to ensure that there would be no problem with overloading the EUT. This procedure was then repeated in the vertical mode for the same frequency and then in both modes with the other frequency.
At the conclusion of the screen room test, the EUT was taken outside the screen room.and the input leads to the EUT taken inside. They were then placed one metre away from the antenna and the power turned on as before to see what the effect of exposing the input leads to RFI would be.
SpetSoum M M*g i
8 Sm Ream I
I
! JC itG-223 (Satt. 2 Weide)
Sve wettmet.r Cearster RF (Fed / 8ef)
Amp 1
i I
i I
I I
i I
i I
l H-H l
>>ut SW 8
8 ro.
I I
Cearotor Sece y 1
M p
i I
i j
i
! J r
k DW g
L'-a '
l i
w.d aw Dee Pers Wth Dem i
Vetrneter i
Ferrite Beode g
i
+ te* unanw4 4 WenMar htput WenMar l
Heesaap Lande n
I 6ENERAL TEST SETUP 6.1 Systems tested The following systems were tested by obtaining sample cards from the Hope Creek j obsite and submitting them to non-destructive testing at the Consultants laboratory.
a)
Redundant Reactivity Control System (RRCS) b)
Bailey 862 Solid State Logic System c)
Emergency Load Sequencer (ELS)
~32-
6.2 RRCS I
The following RRCS cards were tested:
I a)
Digital Signal Conditioner b)
Isolated Lamp Driver c)
Serial I/O Memory d)
Universal Logic Card e)
Field Contact' Input Isolator f)
High Speed Input Isolator g) 12V Logic Input Isolator 4
6.2.1 Dici*al Sienal Conditioner The test at 158.25 MHz caused the output to change state while in the screen room and exposed directly to RFI. There was no influence at the 456.375 Mhz frequency. The results i
are tabulated at the end of this section.
I 6.2.2 Isolated Lamo Driver No failures occurred during this test. The results are tabulated at the end' of this se*ction.
~
6.2.3 ' Serial I/O Memorv Two failures occurred (change of state from high to logic low), at 158.25 MHz at 12 V/m and 14 V/m and one at 456.375 MHz and 10 V/m when exposed to RFI in the screen room. The results are tabulated at the end of this section t !
,r
-.~
..m.-..
,m
_r.,-..
Ga ;'e50P89338 6.2.4 Universal Locie Card i
No failures occurred at 150.25 MHz but the voltage t
regulator began to go out of control at 456.375 MHz and a j
i power of between 5 and 14 V/m.
The test was aborted'before
{
the voltage rose beyond that of' regulation. The results are tabulated at the end of this section 6.2.5 Field contact Inout Isolator i
)
No failures occurred at'either frequency. The results are i
tabulated at the end of this section.
f 1
i i
6.2.6 Hich Sceed Incut Isolator l
[
No failures occurred at either frequency. The results are
(
tabulated'at the end of this section.
I h
~6.2.7 12v Logic Inout Isolator i
i; i
l 4
t No failures occurred at 158.25 Mhz cut the logic changed i
state at 456.375 MHz and 17.37 V/m when exposed directly to RFI in the screen room. The results are tabulated at the
{
end of this section.
E 4
I r
l 6.2.8 In all cases there was no reaction or change of state when i
i the cards were'outside the screen room and the input leads 1
were exposed to RFI inside the' screen room.
[
i i
i i
l i
(
e I
4 1
I i i
I r
t i
i
)
{
l I
M HOPE CREEK ~ GENERATING STATION RFI LABORATORY TEST DATA-i SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM i
CARD UNDER TEST - DIGITAL SIGNAL CONDITIONER Power * (W)
Antenna Data 6i f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 13 12.3 H
18.07 Input Hi 2
456.375 13 12.3 H
18.07 Input Lo 3
456.375 13 12.3 H
18.07 Input 16" Dipole 4
456.375 13 12.3 V
18.07 Input Hi l
5 456.375 13 12.3.
V 18.07 Input Lo 12.3 V
18.07 Input 16" Dipole 6
456.375 13 i
7 158.25 1
35.49 V
5.82 Input Hi (Fail)
]
8 158.25 23 4.5 35.49 V
'25.01 Input Lo 9
158.25 23 4.5 35.49 V
25.01 Input 16" Dipole 10 158.25 20 5.0 35.49 H
22.52 Input Hi (Fail) 11 158.25 23 6.5 35.49 H
23.62 Input Lo 12 158.25 23 6.5 35.49 H
23.62 Input 16" Dipole 4
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd'- Rev, 1~~
reduced by cable loss.
Measured E-field at data # 7.= 10.0 V/m Notes:
l 1.
Data recorded above is for worst case combination of i
polarization, EUT orientation, and frequencies.
l 2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 i
watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
3.
Input. condition: Hi = +12v, Low = ground, 16" dipole leads unterminated.
Failure Indications:
1.
Monitor point U20-15 changes state from high to low level.
i !
i e
-,..._,m.,
. _. _. _. -. = _ _, _... _ _., _ _.., -,,.. _,,--... _
HOPE CREEK GENERATING STATION RFI LABORATORY TEST DATA SYSTEM UNDER TEST - REDUN_.3T REACTIVITY CONTROL SYSTEM
-CARD UNDER TEST - ISOLATED LAMP DRIVER Power * (W)
Antenna Data #
f(MH )
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 15 12.3 H
19.41 Input Lo 12.3 H
18.75 Input Hi 2
456.375 14 3
456.375 13.5 12.3 H
18.41 Input 16" Dipole 4
456.375 14 12.3 V
18.75 Input Lo 12.3 V
19.08 Input Hi 5
456.375 14.5 6
456.375 14.5 12.3 V
19.08 Input 16" Dipole 7
158.25 24 7
35.49 H
23.96 Input Lo 8
158.25 24 7
35.49 H
23.96 Input Hi 9
158.25 24 7
35.49 H
23.96 Input 16" Dipole 10 158.25 12 5
35.49 V
15.38 Input Lo 11 158.25 12 5
35.49 V
15.38 Input Hi 12 158.25 12 5
35.49 V
15.38 Input 16" Dipole
= Pcwer as measured at amplifier. E = 7.02 p /2/D where p = Fwd - Rev, 1
28.18 V/m red' aced by cable loss. Measured E-field at data # 1
=
Notes:
1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
3.
Input condition: Hi = +12v, Low = ground, 16" dipole leads unterminated.
Failure Indications:
1.
None i
P.
A
HOPE CREEK GENERATING STATION RFI LABORATORY TEST DATA II d b
bbbbO SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM CARD UNDER TEST - SERIAL I/O MEMORY Power * (W)
Antenna Data E f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 15 12.3 H
19.4 Input.Hi 2
456.375 15 12.3 H
19.4 Input Lo 3
456.375 15 12.3 H
10.03 In 16" Dip (Fail) 4 456.375 15 12.3 V
19.4 Input Hi 5
456.375 15 12.3 V
19.4 Input Lo 6
456.375 15 12.3 V
19.4 Input 16" Dipole l
7 158.25 5.5
.6 35.49 V
12.87 Input Hi (Fail) 8 158.25 13 4.5 35.49 V
16.96 Input Lo 9
158.25 7
.8 35.49 V
14.48 In 16" Dip (Fail) 10 158.25 23 6.5 35.49 H
23.62 Input Hi 11 158.25 23 6.5 35.49 H
23.62 Input Lo 12 158.25 23 6.5 35.49 H
23.62 Input 16" Dipole
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd - Rev, 1~~
l reduced by cable loss. Measured E-field at data # 3 = 15.85 V/m Notes:
1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing.between EUT and dipole antenna.
3.
Card tested with input tied to +5vDC (High), ground or 16" dipole unterminated as test load.
4 Failure Indications:
1.
Monitor point U4-2 changes state from high to low level as indicated. '
\\
~
.y
-..,-__..__,..,e,
,..,,-,m_
r,
,....-,...m.,,
.. ~
,,r--
HOPE CREEK GENERATING STATION RFI LABORATORY TEST DATA SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM CARD UNDER TEST - UNIVERSAL LOGIC CARD Power * (W)
Antenna Data #
f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 1
12.3 V
5.01 Fail 0 5.02 2
456.375 3
12.3 V
8.7 Fail 0 5.25 3
456.375 14 12.3 V
18.76 Fail @ 5.85 4
456.375 8
12.3 H
14.18 Fail 0 5.25 See Failure Indications 5
158.25 15 4.5 35.49 V
18.07 No change 6
158.25 23 6.5 35.49 H
18.07 No change
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd - Rev, l~~
reduced by cable loss. Measured E-field at data # 1 7.94 V/m
=
Notes:
1.
Data. recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
Failure Indications:
1.
At the E field shown in the table, the supply voltage increased from 4.92 volts (nominal Sv) to those shown in the notes at the initial monitor point U21-2. It became apparent that the regulator was in a runaway condition so, due to the potential destruction of the module, no further tests were conducted on UHF.,
f e
- - ~ _. _.
_ - - -.. ~. -
l HOPE CREEK GENERATING STATION
[
RFI LABORATORY TEST DATA
}
SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM t
CARD UNDER TEST - FIELD CONTACT INPUT ISOLATOR Power * (W)
Antenna Data di f(MHz)
Fwd Rev Lencth(") Polag E (V/m)*
Motes l
1 456.375 13 12.3 V
1 8. 0 '.
Input Hi 2
456.375 10 12.3 H
15.87 Input H1 i
3 456.375 10 12.3 H
15.87 16" Dipole 4
456.375 13 12.3 V
18.07 1G" Dipole i
5 158.25 23 7
35.49 H
23.26 16" Dipole 6
158.25 13 4.5 35.49 V
16.96 16" Dipole.
7 158.25 13 4.5 35.49 V
16.96 Input Hi i
8 158.25 23 7
35.49 H
23.26 Input Hi i
5 d
~~Power as measured at amplifier. E= 7.02 F I/2/D where p = fwd - Rev, 7~~
reduced by cable loss. Measured E-field at data # 2 = 23.71 V/m e
Notes:
1.
Data recorded above is for worst case combination of I
polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipolo fed by a 5 to 20 1
watt transmitter. Unless otherwise specified, FS 9 EUT to that for 1 meter (39.37") spacing between EUT and dipolo antehna.
4 3.
Input condition: Hi = +12v, Low = ground, 16" dipole leado 4
- unterminated.
i Failure Indications:
i l
1.
None t
i 1
1-
ca 3 d5 0 ? 8 9 3 3 6 HOPE CREEK GENERATING STATION RFI LABORATORY TEST DATA SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM CARD UNDER TEST - HIGH SPEED INPUT ISOLATOR Power * (W)
Antenna Cata #
f(MHz)
Fwd Rev Lenoth(") Polar E (V/m)*
Notes 1
456.375 12.5 12.3 H
17.72 Input Lo 2
456.375 12.5 12.3 H
17,72 Input Hi 3
456.375 13 12.3 H
18.07 Input 16" Dipole 4
456.375 14 12.3 V
18.76 Input Lo 5
456.375 14 12.3 V
18.76 Input Hi 6
456.375 14 12.3 V
18.76 Input 16" Dipole 7
150.25 13 5
35.49 V
16.45 Input Lo 8
158.25 13 5
35.49 V
16.45 Input Hi 9
158.25 13 5
15.49 V
16.45 Input 16" Dipole 10 158.25 22 3.5 35.49 H
25.01 Input Lo 11 158.25 22 3.5 35.49 H
25.01 Input Hi 12 158.25 22 3.5 35.49 H
25.01 Input 16" Dipole
~~Power as raessured at amplifier. E = 7.02 p' /2/D wnere p = Fwd - Rev, reduced by cable loss. Measured E-field at data # 1 = 29.85 V/m Notes:~~
1.
Data recorded above is f or worst case conbination of polari:ation, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS 0 EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
3.
Input condition: Hi = +12v, Low = ground, 16" dipole leads unterminated.
Failure Indications:
1.
None.
O
~
HOPE CREEK GENERATING STATXON RFI LABORATORY TEST DATA i
SYSTEM UNDER TEST - REDUNDANT REACTIVITY CONTROL SYSTEM CARD UNDER TEST - 12V LOGIC INPUT ISOLATOR I
Power * (W)
Antenna Data #
f(MHz)
Fwd Rev Leneth(") Polar E (V/m)*
Notes
)
1 1
456.375 12 12.3 V
17.37 Input Lo (Fail) 2 456.375 15 12.3 V
19.42 Input Hi 3
456.375 12 12.?
V 17.37 16" Dipole (Fail) 4 456.375 12 12.3 H
17.37 Input Lo 5
456.375 12.5 12.3 H
17.72 Input Hi 3
6 456.375 12.5 12.3 H
17.72 Input 16" Dipole t
7 158.25 23 7
35.49 H
23.26 Input Lo 8
158.25 23 7
35.49 H
23.26 Input Hi 9
158.25 23 7
35.49 H
23.26 Input 16" Dipole 10 158.25 13 5
35.49 V
16.45 Input Lo 11 158.25 13 5
35.49 V
16.45 Input Hi 12 158.25 13 5
35.49 V
16.45 Input 16" Dipole d
~~Power as measured at amplifier. E= 7.02 p /2/D where p = Fwd - Rev, l~~
j reduced by cable loss. Monsured E-field at data # 1 = 23.71 V/m l
Notes:
j 1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
i 2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 f
watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
3 i
3.
Input condition: Hi = +12v, Low = Ground, 16" dipole leads
/
unterminated.
i Failure Indications:
1.
Logic state changes occurred at data points 1 and 3 at 4 watts.
l I
l M
1 !
i I
1 I
i I
I i
C..
~
[
6.3 BAILEY 862 SOLID STATE LOGIC SYSTE!'
The following Bailey leric cards were tested:
.i a)
Logic Module - input buffer b)
Delay Module The Bailey Solid State Logic System is located in the lower i
f equipment room on the 102 ft level. However, the inputs to t
this system come from all over the plant so the potential t
for upset is greater than with other systems. Therefore, it was decided to test the system as close as possible to the I
set-up in the field, so instead of the screen room tests, the simulator was shipped frcm the job site and testing was I
done using the equipment outside the consultants building with the cards mounted first on top then in position in the card slot.
t
.f 6.3.1 Locic Module - Inout Buffer r
f The card had been. tested af ter the mod:.fication for the EMI resolution but at only 450 MHz. As expected, this test did l
-not induce any change of state when exposed to either i
frequency.
Tests on the input leads did not cause a change l
of state.
The results are tabulated at the end of this
[
section.
I f
6.3.2 Delav Module I
This card suffered a loss of timing function when exposed to direct RFI at 158.25 MHz and 5.5 V/m on the trace side of the card. No change of state or mis-operation occurred; at 456.375 MHz. With the card installed as part of the system in the simulator, there was no change of state or malfunction when the input leads to the system were exposed to RFI. The results are tabulated at the end of this section. !
A I
3a J 65 0 ? 8 9 3 3 6 HOPE CREEK GENERATIMG STATION RFI LABORATORY TEST DATA SYSTEM UNDER TEST - BA'ILEY 862 SOLID STATE LOGIC SYSTEM CARD UNDER TEST - LOGIC ASSEMBLY - FIELD BUFFER Power * (W)
Antenna Data #
f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 16 12.3 H
20.05 2
456.375 16 12.3 V
20.05 3
456.375 16 12.3 H
20.05 4
456.375 15.5 12.3 V
19.74 5
456.375 17 12.3 H
20.67 6
158.25 12.5 35.49 H
20.56 7
158.25 13 35.49 H
20.97 8
158.25 14 35.49 H
21.76 9
158.25 14 35.49 V
21.76 10 158.25 15 35.49 V
22.52
+
~~Power as measured at amplifier. E= 7.02 p /2/D where p = Fwd - Rev, 1~~
reduced by cable loss. Measured E-field at data # 10 = 18.84 V/m Notes:
1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
j 2.
Field strength (FS) derived from a tuned dipole fed.by a 5 to 20 watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
Failure Indications:
1.
None 6
I HOPE CREEK GENERATING STATION RFI LABORATORY TEST DATA j
SYSTEM UNDER TEST - BAILEY 862 SOLID STATE LOGIC SYSTEM CARD UNDER TEST - DELAY MODULE Power * (W)
Antenna Data e f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes 1
456.375 17.2 12.3 H
20.79 12.3 H
20.67 2
456.375 17 3
456.375 17.5 12.3 V
20.97 4
456.375 17.5 12.3 V
20.97 5
158.75 2
35.49 Y
8.225 6
158.25 13 35.49 V
20.97 7
158.25 2
35.49 H
8.225 8
158.25 13 35.49 H
20.97 9
158.25 2
35.49 V
8.225 10 158.25 13 35.49 V
20.97 11 158.25 19 35.'49 H
5.51 Max Pwr Allowed 12 158.25 14 35.49 H
21.76 Unit inoperable
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd - Rev, 1~~
reduced by cable loss. Measured E-field at data # 11 = 5.6 V/m Notes:
1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS @ EUT is that for 1 meter (39.37") spacing between EUT and dipole antenna.
Failure Indications:
1.
Loss of timing functions occurred at 5.5 watts at data # 11 a 12.
4 6.4 E".ERGENCY LOAD SEQUENCER GCI 3 (;,5 ] ? $ 9 3 3 S The following ELS cards were tested:
i a)
Field buffer b)
Relay driver i
~
For these tests, the set-up reverted to.that for the RRCS cards with the cards mounted in the screen room. This system had been thoroughly tested at 450 MHz during checkout at the factory and no adverse effects were noted.
6.4.1 Field Buffer f
As expected, following the tests at the vendors works, no change of state occurred at 456.375 MH: but there were changes at 158.25 MH: at power levels of between 9 and 18 V/m. The results are tabulated at the.end of this section.
I 6.4.2 Relav Driver This card did not fail at 456.375 MHz out a change of state 4
did occur at 158.25 MH: and 21.76 V/m. The results are tabulated at the end of this section.
6.4.3 Neither card failed or malfunctioned when the input leads i
were exposed to RFI.
J 4
.' 1 e
o
---e
.. - -. + -.,
---.mr
-m
.,y-w.-
,,-ry,,----,-,-7-w-,
y.
HOPE CREEK GENERATING STATIG!i l
RFI LABORATORY TEST DATA SYSTEM UNDER TEST - EMERGENCY LOAD SEQUENCER CARD UNDER TEST - FIELD BUFFER Power * (W)
Antenna f
Data #
f(MH:)
Fwd Rev Lencth(") Polar E (V/m)*
Notes Inputs 1
456.375 15 12.3 H
19.42 Grounded i
2 456.375 15 12.3 V
19.42 Grounded i
3 456.375 15 12.3 V
19.42 16" Dipole l
4 456.375 15 12.3 H
19.42 16" Dipole t
I 5
158.25 3.5 1
35.49 H
9.20 16" Dipole (Fail) 6 158.25 13 3
35.49 H
18.39 16" Dipole (Fail) i L
7 158.25 13.5 3.5 35.49 V
18.39 16" Dipole (Fail) i 8
158.25 8
2.5 35.49 V
13.64 No lead connected 9
158.25 23 8
35.49 V
22.52 Grounded 10 158.25 12.5 3.5 35.49 H
17.54 Gr'unded o
11 158.25 5
1.5 35.49 H
10.88 16" Dipole (Fail)
[
12 158.25 3.5 1
35.49 H
9.20 No lead (Fail) i
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd - Rev, i~~
1 reduced by cable loss. Measured E-field at data # 4 23.71 V/m
=
l Notes:
1.
Data recorded above is for worst caso combination of I
polarization, EUT orientation, and frequencies.
2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 watt transmitter. Unless otherwise specified, FS 0 EUT is that for-1 meter (39.37") spacing between EUT and dipole antenna.
i i
Failure Indications:
1.
Failure occurred at data points 5,6,7,11 and 12.
Data point 5: Output changed from 28v to 23vDC Data point. 46 : Output changed from 28v to OvDC Data point 7: Output changed from 28v to OvDC Data point 11: Output changed from 28v to OvDC l
Data point 12: Output changed from 28v to 23vDC j
f 4
^
t l
HOPE CREEK GENERATING STATION Ki J'oSOP29336 RFI LABORATORY TEST DATA SYSTEM UNDER TEST - EMERGENCY LOAD SEQUENCER I.
CARD UNDER TEST - RELAY DRIVER 1
l Power * (W)
Antenna Data #
ffMHz)
Fwd Rev Lencth(") Polar E (V/m)*
Notes Inputs 1
456.375 15 12.3 V
19.42 Loop 2
456.375 15 12.3 V
19.42 16" Dipole 3
456.375 15 12.3 H
19.42 16" Dipole 4
456.375 15 12.3 H
19.42 Loop 5
456.375 15 12.3 H
19.42 16" Dipole 6
456.375 15 12.3 H
19.42 16" Dipole 7
158.25 13 3.8 35.49 H
17.64 16" Dipole (Fail) 8 158.25 13 3.8 35.49 H
17.64 Loop to ground 9
158.25 24 8
35.49 V
23.26 16" Dipole 10 158.25 24 8
35.49 V
23.26 Loop 11 155.25 13 3.8 35.49 H
17.64 No leads 12 158.25 24 8
35.49 V
23.26 No leads 13 158.25 18 4
35.49 V
21.76 16" Dipole 14 158.25 24 8
35.49 V
23.26 Loop 15 158.25 24 8
35.49 y
23.26 No leads i
l
~~Power as measured at amplifier. E = 7.02 p}/2/D where p = Fwd - Rev, reduced by cable loss. Measured E-field at data # 1 35.48 V/m~~
=
Notes:
1.
Data recorded above is for worst case combination of polarization, EUT orientation, and frequencies.
i 2.
Field strength (FS) derived from a tuned dipole fed by a 5 to 20 I
watt transmitter. Unless otherwise specified, FS @ EUT is that j
for 1 meter (39.37") spacing between EUT and dipole antenna.
Failure Indications:
1.
Failure occurred at data point 7: Output activated 4
) 3
3 I
i 7.0 JOB-SITE VERIFICATION TESTING l
i 1
7.1 GENERAL
}
Following the tests carried out at the consultants laboratory, a site test procedure was prepared to verify 1
the zoning of areas in which saf ety-related systems are located with respect to RFI and in which the use of walkie talkie radios will be prohibited.
I j
Zoning has been determined on the basis of the tests j
carried out by the consultant and described earlier in this j
document. These tests were conclusive in that they confirmed the need to establish zones to preclude the use j
of radio equipment. Moreover, RFI testing carried out by i
Bailey on their 7000 series analog system, indicates an L
even higher level of susceptibility. Therefore, areas to be i
zoned are, the upper and lower equipment rooms, which contain computer and other sensitive equipment besides the Bailey analog equipment, the control room, cable spreading q
rooms, cable tray areas and inverter rooms.
i
-Therefore, testing took take place in the corridors and I
i areas immediately Odjacent to the zoned areas to verify that the use of radios may be permitted in these areas.
l
\\
l j
Zoning may be regarded as a temporary measure and a betterment program can be established af ter the start of
}
operations to see what other testing and plant I
modifications can be made to allow eventual operation of radios in some of the the zoned areas.
t l
7.2 PASS / FAIL CRITERIA 4
1 The selected systems, listed below, were' tested.
The j
system under test was powered vp and in a passive state.
l l
i
-4 ti-I
-. -. _ _ t_:
..- -... --. -- - - -.-- - --- l- -
ril JdEO2Cb330 The pass / fail criteria was that the RFI test must not cause a change of state of the output of the logic that will I
cause a change in the desired operation or position of the equipment.
7.4 SYSTEMS TO BE TESTED The following systems were selected to be testdd. They are i
generally digital and 1E, however, some are digital non-1E but the circuit configuration is such that they represent the worst case from a susceptibility standpoint for the 1E application they represent.
The test method was similar for all systems.
7.4.1 RRCS This system showed a high level of potential vulnerability at the consultants testing and the f eedwater runback and standby liquid control circuits were selected as being most representative of circuit complexity.
7.4.2 BAILEY 862 SOLID STATE LOGIC SYSTEM 3 Systems were selected for testing as follows:
a)
Circulating Water system shown on logic drawings J-09 sheets 2,3 and 4.
b)
Reactor Recirculation system shown on logic drawings J-43 sheets 2 and 3.
c)
Standby Liquid Pump Control shown on logic drawing J-48 sheet 2.
7.4.3 ELS This system has only three inputs. These are:
~~1 i~~
1.
Reactor pressure high or low water level from the same relay as the LOCA signal.
I 2.
Loss of offsite power - LOP.
3.
Diesel generator breaker closed.
j The system was tested for change of state at thd output of i
the timing sequence prior to the MCC outputs, l
1 8.0 TEST METHOD f
i 8.1.
RF SIGNAL TRANSMISSIONS i
)
i 8.1.1 A variable output RF amplifier was set up in the area adjacent to the zone where the equipment to be tested is l
located. The purpose was to verif y that no transmissions will penetrate the rebar of the concrete wall and no RF I
energy will be injected into cables that will cause a malfunction.
I i
8.1.2 The RF amplifier was triggered at zero output into a horizontally polarized antenna set to 150 MHz at 5ft from 1
i the floor.
f 1
1 8.1.3 The gain control of the amplifier was slowly increased to j
the maximum equivalent output of a walkie talkie, as l
measured on the wattmeter and the ef fects observed at the f
receiving equipment. Both forward and reverse powers were I
be measured.
j t
i i
8.1.4 The antenna was then vertically polarized and the test I
j repeated.
I 4
8.1.5 The antenna was then changed to 450 MHz, horizontally t
l polarized and the test repeated.
i l
3 k
%~
1 8.1.6 The 450 MHz antenna was then vertically polarized and the test repeated.
i 8.1.7 The 450 MHz antenna was then be moved to a point one half J
wave-length away from the original position and the test repeated to ensure that maximum RF power, up to the limit put out by the walkie talkie, was inyected into the cable or.iall.
8.1.8 The antenna was then be changed and moved one half of a 1
l wavelength at 150 MHz from the original position and the e
test repeated.
I 8.2 RF SIG:!AL RECEPTIO';S 1
J 8.2.1 A spectrum analyzer was connected to the input of the field I
buffer, as listed, for each system or area under test to capture the RF signal should it penetrate the cable or wall l
and reach the input buffer.
1 j
8.2.2 A storage oscilloscope was connected to test points on the outputs of the inputs, as listed, for each system under j
test to capture data if the RF signal gets through the
]
logic. Polaroid film was available to be used to record the
]
extent and magnitude of the effect.
i l
8.2.3 A'DVM was used to monitor power supplies and on-board j
regulators.
]
1 8.3 TEST CREW 3
f The test crew comprised three groups. Group one operated i
the power amplifier, group two observed the equipment connected to the system under test, and group three acted as observers in the main control room to monitor changes of i
4 state on other equipment.
f
~~i I~~
=
Ei 36E0?89336 9.0
-TEST EQUIPMENT USED 4
i The following test equipment was used for the tests:
Hand held walkie talkies at each frequency.(Tactec)
Field strength r:.eter (Vanco)
Digital volt meter.
4 l
Storage oscilloscope with all necessary probes. (Tektronix model 7623A)
Oscilloscope camera.and film.
i Variable output RF amplifier. (IFI model 5301) 2 Antennae kits, (150MHz and 450 MHz) (Roberts)
Uattmeter. (Sierra model 164B).
Spectrum Analyser. (Wavetek model 3000 SSI) 4 4
10.0 TEST RESULTS I
i The results of the tests carried out are detailed on the data sheets following this section.
s
]
1 1
i i
i
, 1
't z
'I 3
I
~
,. _.,... _.,...,, _ _., _. _ _ _... _..,___.,_ r
-m,
,__..m.
HOPE CREEK GENERATING STATION N
RFI FIELD TEST DATA r
SYSTEM UNDER TEST - LOWER EQUIPMENT ROON - NORTH SIDE DATE - 9/7/85 Power * (W)
Antenna Spec. Anal.
Data #
f(MH: $
Fwd Rev Lenath(") Polar E (V/m)'
. Power (mW) i 1
152.791 6
3.8 35.49 H
8.642 46 2
152.791 6
3.8 35.49 V
8.642 58 I
r 3
451.050 6
1 12.3 H
15.C97 2398 f
4 451.050 6
1 12.3 V
15.697 2729 r
i P
f i
I r
[
t t
Failure Indications: None i
Notes:
i i
i j
This test was to determine the attenuation of the rebar in the 10" concrete wall and to consider _the necessity of setting up the equipment per the test procedure ~on the circulating water pumps, i
Since the energy levels received at the spectrum analyser were so low and there were no observable changes in the control room it was decided not to hook up to these systems.
Power at spectrum analyser antenna derived from formula and r
information from GE/Wavetek.
i
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
1 Rev.
[
i l I
x
J HOPE. CREEK GENERATING STATION RFI FIELD TEST DATA i
SYSTEM UNDER TEST - STANDBY _..UID CONTROL - CHANNEL B DATE - 9/7/85 Power * (W)
Antenna Spec. Anal.
Data #
f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Power (mW) 1 152.791 6
4 35.49 V
9.928 30 2
152.791 10 4
35.49 H
17.195 43 3
152.791 4
4 35.49 V
9.928 30 4
152.791 10 4
35.49 V
17.195 43 5
451.050 6
1 12.3 H
15.697 3837 6
451.050 6
1 12.3 V
15.697 3837 7
451.050 10 1.5 12.3 H
20.467 3837 8
451.050 10 1.5 12.3 H
20.467 3837 Failure Indications:
None 1
Notes:
Equipment was set up per test procedure. Antennae were placed 1 meter from B Channel cables outside lower equipment room, 30 ft f rom entre.nce on south side of equipment room and test procedure followed. From control room observations, no effects were seen on any other system.
Power at spectrum analyser antenna derived from formula and i
information from GE/Wavetek.
p /2/D where p = Fwd -
1
~~Power as measured at amplifier. E = 7.02 Rev.~~
. ^
i
)
rc 3 E 0 ? e 9 3 3 e HOPE CREEK GENERATING STATION RFI FIELD TEST DATA 4
SYSTEM UNDER TEST - LOUER EQUIPMENT ROOM - 102 Ft level DATE - 9/7/85 Power * (W)
Antenna Spec. Anal.
Data E f(MHz)
Fwd Rev Lenath(") Polar E (V/m)*
Power (mW) 1 152.791 2
1 35.49 H
7.02 96 2
152.791 3
1 35.49 H
9.928 118 3
152.791 4
1 35.49 H
12.159 118 4
152.791 5
1 35.49 H
14.04 118 5
152.791 6
1 35.49 H
15.697 118 6
152.791 2
1 39.45 V
7.02 95 7
152.791 3
1 39.45 V
9.928 118 8
152.791 4
1 39.45 V
12.159 118 9
152.791 5
1 39.45 V
14.04 118 10 152.791 6
1 39.45 V
15.697 118 11 451.050 2
1 12.3 H
7.02 3081 12 451.050 3
1 12.3 H
9.928 3081 13 451.050 4
1 12.3 H
12.159 3848 14 451.050 5
1 12.3 H
14.04 3848 15 451.050 6
1 12.3 V
15.697 3848 16 451.050 2
1 12.3 V
7.02 3848 17 451.050 3
1 12.3 V
9.928 4264 18 451.050 4
1 12.3 V
12.159 4264 19 451.050 5
1 12.3 V
14.04 4264 20 451.050 6
1 12.3 V
15.697 4264 Failure Indications: None.
Notes:
Spectrum analyser was set up in lower equipment room at a distance of 1 meter from transmitter on other side of 8" wall at a distance of 30' on the south side. The purpose was to determine the attenuation through the wall and rebar.
~~Conclusion:~~
although the spectrum analyser showed a high level of power transfer, no effects were observed in the control room. Therefore, it was decided to test the A Channel of the SLCS using the same approach but with the equipment connected per the procedure.
Power at spectrum analyser antenna derived from formula and information from GE/Wavetek.
Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -
1 j
Rev.
I !
t
- w.
,e-n,*
--,-a e ne y
e-<
i HOPE CREEK GENERATING STATXON RFI FIELD TEST DATA SYSTEM UNDER TEST - STANDBY LIQUID CONTROL - CHANNEL A DATE - 9/7/85 i
Power * (W)
Antenna Spec. Anal.
Data #
f(MHz)-
Fwd Rev Length (") Polar E (V/m)*
Power (mW) 1 152.791 5
1 35.49 H
14.04 76 2
152.791 6
1 35.49 H
15.697 43 3
152.791 10 1
35.49 H
21.06 118 4
152.791 6
1 35.49 V
15.697 118 5
152.791 10 9
35.49 V
7.02 44 6
451.050 2
1 12.3 H
7.02 1535 7
451.050 3
1 12.3 H
9.928 1535 8
451.050 4
1 12.3 H
12.159 1801 l
9 451.050 5
1 12.3 H
14.04 1535 10 451.050 6
1 12.3 V
15.697 1535 11 451.050 2
1 12.3 V
7.02 1535 12 451.050 3
1 12.3 V
9.928 1290 13 451.050' 4
1 12.3 V
12.159 1535 14 451.050 5
1 12.3 V
14.04 1801 15 451.050 6
1 12.3 V
15.697 1290 1
l
[
Failure Indications:
None Notes:
Spectrum analyser and oscilloscope were set up at the A Channel i
SLC cabinet in accordance with the procedure, and the transmitter equipment on the other side as before. The Bailey input buffer acted as the antenna but with considerably reduced power being' measured. There was no change observed in the operation of the card, neither was there any observed effects in the control room.
i Power at spectrum analyser antenna derived from formula and i
information from GE/Wavetek.
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
f 1
Rev.
l 4
f :
i l
i
HOPE CREEK GENERATI"G STATIO?
RFI FIELD TEST DATA SYSTEM UNDER TEST - EMERGENCY LOAD SEQUENCER DATE - 9/8/85 Power * (W)
Antenna Spec. Anal.
Data #
f (!!H: )
Fwd Rev Lencth("I Polar E (V/m)*
Power (mW) 1 152.791 2
1 35.49 H
3.51 133 2
152.791 4-1 35.49 H
6.08 133 3
152.791 6
1 35.49 H
6.80 140 4
152.791 8
1.25 35.49 H
9.12 151 5
152.791
~10 1.5 35.49 H
13.59 151 6
152.791 2
1 35.49 V
3.51 129 7
152.791 4
1 35.49 V
6.08 129 8
152.791 6
1 35.49 V
6.80 151 9
152.791 8
1.5 35.49 V
8.95 151 10 152.791 10 1.5 35.49 V
13.59 170 11 451.050 2
1 12.3 H
3.51 1365 12 451.050 4
1 12.3 H
6.08 1365 13 451.050 6
1 12.3 H
6.80 1469 14 451.050 8
1 12.3 H
9.29 1541 15 451.050 10 1.5 12.3 H
13.59 1727 16 451.050 2
1 12.3 V
3.51 1434 17 451.050 4
1 12.3 V
6.08 1504 18 451.050 6
1.5 12.3 V
6.80 1541 19 451.050 8
1.5 12.3 V
8.95 1727 20 451.050 10 1.5 12.3 V
13.59 1727 Failure indications: None Notes:
Tx was set up.in corridor outside the room to allow 2 meters from the ELS panel. There was no switching of circuits on either frequency so the 150 Mhz transceiver was taken inside and a test similar to that done by CCC at factory checkout i.e.
placing the antenna inside the ELS and keying the transmitter. No effects were seen. On completion, the ELS was checked out using the self check system and no malfunctions were seen. Test personnel were located in the control room to monitor any unusual occurrences, there were none.
Power at spectrum analyser antenna derived from formula and information from GE/Wavetek.
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
l i
Rev.
I r-9,
+
e
ET J 6E 0 ?. 8 9 3 3 8 i
HOPE CREEK GENERATING STATION RFI FIELD TEST DATA i
SYSTEM UNDER TEST - UPPER EQUIPMENT ROOM ADJACENT TO RRCS PANELS DATE - 9/8/85 j
Power * (W)
Antenna Spec. Anal.
Data #
f(MHz)
Fwd Rev Lencth(") Polar E (V/m)*
Power (mW) 1-152.791 2
1 35.49 H
7.02 200 2
152.791 4
1 35.49 H
12.16 232 3
152.791 6
1 35.49 H
15.69 246 4
152.791 8
1 35.49 H
18.57 266 5
152.791 10 0.3 35.49 H
21.06 266 6
152.791 2
1 35.49 V
7.02 232 7
152.791 4
1 35.49 V
12.16 266 8
152.791 6
1 35.49 V
15.69 266 9
152.791 8
1 35.49 V
18.57 266 10 152.791 10 2
35.49 V
19.86 266 11 451.050 2
1 12.3 H
7.02 4264 i
12 451.050 4
1 12.3 H
12.16 4264 13 451.050 6
1 12.3 H
15.69 4264 i
14 451.050 8
1 12.3 H
18.57 4264 j
15 451.050 10 1
12.3 H
21.06 4264 16 451.050 2
1 12.3 V
7.02 4264 17 451.050 4
1 12.3 V
12.16 4264 18 451.050 6
1 12.3 V
15.69 4264 19 451.050 8
1 12.3 V
18.57 4264 20 451.050 10 1
12.3 V
21.06 4264 I
l Failure indications: None Notes:
l The purpose was to test the attenuation through the wall between the HVAC room and the upper equipment room. The distance between antennae was 1 meter. The results show a high transfer so it will be necessary to check the operation of the RRCS to see if the output of the logic cards change state.
I Power at spectrum analyser antenna derived from formula and j
information from GE/Wavetek.
l
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
1 l
Rev.
l 1
l 1
i
HOPE CREEK GENERATING STATION RFI FIELD TEST DATA SYSTEM UNDER TEST - UPPER EQUIPMENT ROOM ADJACENT TO RRCS DATE - 9/8/85 Power * (W)
Antenna Spec. Anal.
Data #
f(MHz)
Fwd Rev Length (") Polar E ( Vhn )
~~Power (nW) 1 151.791 6~~
1.24 35.49 H
15.316 29 2
151.791 10 2.5 35.49 V
19.225 38 3
451.050 6
2.5 12.3 H
13.133 1540 4
451.050 6
1.5 12.3 V
14.89 1804 i
i 1
4 i
I l
1 l
4 Failure indication: None Notes:
This test was to determine the drop in signal strength with increased distance. The Tx was set up in the corridor out-side the HVAC room. The signal from the 450 Mhz Tx was still strong enough to justify testing the RRCS system as in-the procedure.
Power at spectrum analyser antenna derived from formula and I
information from GE/Wavetek.
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
l j
Rev. i l
A -
HOPE CREEK GENERATING STATION RFI FIELD TEST DATA i
SYSTEM UNDER TEST - RRCS - Stia PUMP CIRCUIT DATE - 9/9/85 l
Power * (W)
Antenna Spec. Anal.
Data #
f(MHz)
Fwd Rev Length (") Polar E (V/mf*
Power (mM) 1 152.791 2
1 35.49 H
3.05 152 2
152,791 4
1 35.49 H
6.08 152 3
152.791 6
1 35.49 H
7.84 171 4
152.791 8
1 35.49 H
9.29 171 5
152.791 10 0.8 35.49 H
10.65 192 j
6 152.791 2
1 35.49 V
3.05 152 7
152.791 4
1 35.49 V
6.08 152 8
152.791 6
1 35.43 V
7.84 152 9
152.791 8
1 35.49 V
9.29 152 10 152.791 10 0.8 35.49 V
10.65 192 11 451.050 2
1 12.3 H
3.05 1727 12 451.050 4
1 12.3 H
6.08 1727 13 451.050 6
1 12.3 H
7.84 1727 14 451.050 8
1 12.3 H
9.29 1727 l
15 451.050 10 1
12.3 H
10.53 1727 16 451.050~
2 1
12.3 V
3.05 1364 t
l 17 451.050 4
1 12.3 V
6.08 1540 l
18 451.050 6
1 12.3 V
7.84 1540 l
19 451.050 8
1 12.3 V
9.29 1540 i
20 451.050 10 1
12.3 V
10.53 1540 t
Failure indications: None j
Notes:
The previous test indicated a relatively high transfer of energy through the wall. This test connected the spectrum analyzer to the input of the SLCS pump circuit and the oscilloscope on the output.
The antenna was placed so that 2 meters space was between l
antennae. There was no indication at all of any shift on the oscilloscope and the signal at the spectrum analyser varied very l
little which indicated minimal pick up on the input. This was consistent for both frequencies. The transmitting antenna was i
moved back in 1/4 wavelength increments to 1 full wave length. The j
signal strength at the spectrum analyzer reduced linearly.
j Power at spectrum analyser antenna derived from formula and information from GE/Wavetek.
)
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
~~1 Rev.~~
~~i I~~
- _._ _ -. _ _.._ _ _ _.t _ - _ _. _.._ _, _ _
I HOPE rREEK GENERATING STATION t
RFI FIELD TEST DATA t
j SYSTEM UNDER TEST - RRCS - REACTOR FEED WATER RUNBACK CIRCUIT.
i DATE - 9/9/85 f
?
Power * (W)
Antenna Spec. Anal.
f j
Data #
f(MHz)
Fwd Rev Length (") Polar E (V/m).*
Power (mW) i 1
152.791 2
1 35.49 H
3.50 151 2
152,791 4
1 35.49 H
6.08 171 3
152.791 6
1 35.49 H
7.84 171 4
152.791 8
1 35.49 H
9.29 171 I
5 152.791 10 2
35.49 H
9.93 192 6
152.791 2
1 35.49 V
3.50 133 i
7 152.791 4
1 35.49 V
6.08 171 8
152.791 6
1 35.49 V
7.84 171 9
152.791 8
1 35.49' V
9.29 171 I
10 152.791 10 2
35.49 V
9.93 171 11 451.050 2
1 12.3 H
3.50 1541 12 451.050 4
1 12.3 H
6.08 1541
[
13 451.050 6
1 12.3 H
7.84 1541 j
14 451.050 8
1 12.3 H
9.29 1541 15 451.050 10 1
12.3 H
10.50 1541 l
l 16 451.050 2
1 12.3 V
3.50 1541 i
17 451.050 4
1 12.3 V
6.08 1541 18 451.050 6
1 12.3 V
7.84 1541 I
19 451.050 8
1 12.3 V
9.29 1541 20 451.050 10 1
12.3 V
10.50 1541 i
i j
Failure indications: None
)
i j
Notes:
f i
The previous test indicated a relatively high transfer of energy r
through the wall. This test connected the spectrum analyzer to the i
input of the Reactor Feed Water Runback circuit and the l
oscilloscope on the output. The antenna was placed so that 2 l
1 i
meters space was between antennae. There was no indication at all i
)
of any shif t on the oscilloscope and the signal at the spectrum
]
analyser varied very little which indicated minimal pick up on the L
i input. This was consistent for both frequencies. The transmitting l
l antenna was moved back' in 1/4 wavelength increments to 1 full wave l
length. The signal strength at the spectrum analyzer reduced t
l linearly.
f j
Power at spectrum analyser antenna derived from formula and l
l information from GE/Wavetek.
l
~~Power as measured at amplifier. E = 7.02 p /2/D where p = Fwd -~~
1 Rev.
I l.
t l
I
a aa0289336 11.0 WELDING EQUIPMENT 11.1 The welders at Hope Creek are 250 amp type. The Effective Radiated Power (ERP) of these is such that observation of a 4
15 ft boundary will negate any adverse effects on equipment and the effect on unshielded cables at this distance, will be minimal due to the significant transmission losses along the cable. Also the welder cables should be run close together from the welding unit to a point no further than 5 ft from the control systems panels or cables before attaching the ground clamp. This will prevent the formation of a large " loop antenna" and avoid induced voltages getting into equipment and/or cables.
11.2 During the test of the lower equipment room, a 100 amp arc welder was in use above the Bailey solid state logic cabinets. In accordance with Bailey recommendations, the doors of the cabinet were closed and no change of state of 1
]
logic was observed in the main control room. An attempt was made to monitor the radiation f r o.-
the welder but no signals were received.
I 11.3 If the 15 t t boundary and the recommended good practice regarding the location of the ground clamp is observed there should not be a problem with welding.
L 000 WM 1
800 nfK F
1kAfl 1F T,
1 ham r l
l l
{ =e. =.=.o.
co,
==
== ~%,l u
4
..7
~
,,,,,,!,,,,",;,,,,,,,,,,i,,,,,,;,,,,,,,,,, fr i,,,,,,,,,,
w1Dai cAmts Tann toarum.
PLACG CLDE TO fl.acIL HOW TO ARC WELD SAFE 1.Y _
[T a850289336 12.0 OTHER ON-SITE RADIO EOUIPMENT l
The other on-site radio systems are the static system that j
is complementary to the walkie talkies. A review of the I
location and ERP of the fixed antenna was undertaken and
~
j although the position of some of the antenna are close to areas that will be zoned, the power output of-the radio system and attenuation of the building structure will prevent any falsing.of equipment.
i j
13.0 20::ING I
Areas to be zoned'are shown on architectural drawings A-0202-0 through A-0206-0. The specific areas to be zoned i
i are as follows:
i l
13.1 The cable spreading room and cable tray areas at level 2, j
elevation 77'-0" Dwg. A-0202-0
[
l i
l 13.2 Tne lower equipment room at level 3, elevation 102'-0" Dwg.
l A-0203-0 l
i I
j 13.3 control equipment room and inverters at level 4, elevation 1
120'-0" and 132'-0" Dwg.A-0204-0
[
i 1
1 1
13.4 Main Control room at level 5,
elevation 137'-0".
Dwg
{
l A-0205-0 l
I 13.5 Control equipment room at level 6, elevation 162'-0". Dwg l
A-0206-0 i
Appropriate notices will be placed in prominent positions l
l prohibiting the use of hand held walkie talkies in these 4
i areas.
f t
l,
1 1
l
.

ML20133K882

Contents

Text

SUMMARY

56.0 CONCLUSION

Conclusion:

Navigation menu

ML20133K882

Text

SUMMARY

56.0 CONCLUSION

Conclusion:

Navigation menu

Search