eORtQiNALFRQCEQURE REVISION FQRM

Procedure Nunber: T 8 b Current Revision: 0Procedure Title: 6 c.iaI Hei P~ek~l- 4r T C a.zg iE. ZMlcrtarS

POC Meeting Nuober:

CHANGE: (See attaclled copy of'arked up procedure.)JIVE.LE'T E' fafoc.a C vfEE.

REASON FOR CHANGE:

~+ST C.n~ P~ea

8601060086 851220PDR ADOCK 0>000~97F PBR.

Yes NoThis procedure/revision constitutes a change to procedures asdescribed in the FSPR.

2. x This procedure/revision constitutes 'a change to TechnicalSpecif ications.

This pzoceduze/revision constitutes an unreviewed safety ques-tion as defined in 1OCFR50.59. 3ustification for this evalua-tiOn'Aay i'OCC+rg /)CS hC fCV'fCMCd + liay I W 3CPIe Sl/ Iafffr/ i'~ t OCR 4. $

' rare. ~j dE+ re VAC 7 w~.

4. P This procedure/revisi:on constitut s an unreviewed environmentalquestion or a charge--in the Environmental Protection Plan.(See Tech. Spec. App;-B, EPP 3.0.)

5, p'

6.

Prepared By:

Reviewed By:

This procedure/revision nullifies a previous regulatorycommitment being qatisfied. (See paragraph =1.2.4.2.A.2.d.}Stlppir4 in+Os ~~~ S~+ W lVIPC Cj>UCgkr'>M A. 'S~Oaf W4*lThis procedure revision constitutes a %el<-8V-S3V QZ. 3~>«Q

a

t I Review of the entire procedure.

Partial review only of the procedure.

Oate: -2.4-- BGOate:

ALARA EYALUATEON:

7.

Signed By:HPlChem Manager

Attachment EEE

Gate:

This procedure was reviewed f'r ALARA considerations anddetermined adequate.

+OCCDURC NUMCCR

1.2.4W IIIAl (8%4)

RCVICIDN NUMSCR iA4C NUMQCR

1.2.4-8 of 8

E

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U

~,rT i PORARY PROCEDURE

AU: LAN b'ANAG R A X A N A t N N

j1i:G. Oockter: /spaz

Special Test. Procedure for TDAS Class lEIsa'-'ators-,,;..::;-

YES X NO

POC REVIEM (If required)

MEETING/DATE

i~fji

)i$

A

8.6.6.1 Puzuose

'This procedure provides the instructions necessary to determine whateffect (if any) the application of'he Maximun Credible Fault Voltage toa TDAS isolator output has on the input (Class lE) side of the isolator.

8.6.6.2 References

A. HYLE Laboratories Nuclear Environaantal Qualif'ication Test ReportNo. 46206-1.

B. Telecon 2/28/85 hRC to Supply System (Joe Joyce to Gordon Brastad)establishing the Maximus Credible Fault Voltage).

8.6.6.3 Discussion

The Qualification Test Program for the TDAS Class 1E isolators estab-U.shed the Maximun Credible Fault Voltage on the Class II side to be15 volts DC.

Since there is 120 volts AC (fused 15 amps or less) in the cabinets whichccntain the isolators, it has been determined that 120 volts AC shall bethe Maximum Credible Fault Voltage.

This test shaH supplement the Qualification Test Plan for the TDAS

isolators and shall verif'y that'Class 1E functions are not adverselyaffected by the- application of" the Haximun Credible Fault Voltage tothe isolator output.

8. ~ . ~ . ~PM 8'8.6.68pcoceoure

8

A. Provide the test configuration shown in Figure 1. Record the WPPSS

identification nunbers and calibration due dates for the testequipment used.

Device Calibration Due Date

V ><c.aQ.oEZ

l2.9% e3- f™l"K4-

Verafxed y Oate

TP 8.6.6 TP 8.6.6-2 of 5

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B. Provide test signals on the recorder to verify the voltage scale.Label the signals and the voltage ranges on the recorder trace.

g go-F5Ver fied by Date

C. Mount the isolator to be tested in an isolator tray and electricallyconnect it as shown in Figure 1. Provide a 4 ma signal (1 VOC

across Rl) frcm the diff'erential pressure transmitter. Record theserial number of the isolator.

Isolator S.N. 57%Q=/o Verif'ied by

g-z.oDate

CAUTION: The perf'ormance of the next step will have an unknowneff'ect on the isolator. Care should be taken to insure- no personnelharm free any resultant action.

Verii'ied by

Sign and date the recorder trace and identify aU. signals and theisolator serial rubber. Attach the trace to= this procedure.

'-z;o-FSYerxfied by , Date

Repeat Steps C through E'bove for two more isolators chosen atrandom. Record their serial numbers below.

g-z.o -F<

O. Turn on the visicorder at 40 mn/sec and turn on switch Sl. Afterapproximately 3 seconds, turn switch Sl to the "OFF" position.

g- zw-8aDate

so ator S. . er ed by Date

G. For all three cases above, determine:

1. The voltage applied to the output.

2. The length of time voltage was appU.ed.

3. The maxifmm voltage resulting on the input.

4. The duration of the voltage resulting on the input.

Surearize the results in Section 8.6.6.7.

era red by

f-z, o-7SDate

TP 8.6.6 TP 8.6.6-3 of 5

I"

H. Compare the results of this test to the acceptance criteriaof'ection8.6.6.6 and verify that the isolator f'unctioned properly.

Gr 9-ac -F<~

Dj'.6.6.6

Acce tance Criteria

A. Electrical

B.

The Class 3E signal masured interference is less than 50 mv peak topeak f'r ra more than 10 msec during the application of'he MaximunCredible Fault Voltage and the signal f'unction is not inhibited.

The Class IE, signal maintains its initial'alue af'ter the HaximunCredible Fault Voltage has been removed (within signal tolerance

of'he

transmitter).

P sical Acce tance Criteria

The isolator remains intact during and af'ter the application of theHaximun Credible Fault Voltage.

7.6. ~ .7 ~Tt S

TP 8.6.6 TP 8.6.6-4 of'

T

TP 8.6.6TEST SUMMARY

STEP B. The signals recorded and voltage ranges are

CH DESCR IPT ION

1

234

Isolator Power SupplyIsolator InputTransmitter Power SupplyIsolator Output

INITIALVALUE SENSI T IVITY

24. 01VDC 4. 03VDC/DIV1. 02VDC . 05VDC/DIV

24. OOVDC 3. 51VDC/DIV10. 22VDC 34. OVDC/DIV

STEP C.

STEP D.

The functionality of the isolator (measuring of the outputvoltage) was also veri Fi ed in this step.

The actual chart speeds for Test Case ¹1 and ¹2 were 40in/sec and For Test Case ¹3 80 in/sec.

STEP G. From the attached recorder traces:

STEP H.

TESTCASE¹

123

>3 Sec.>3 Sec.>3 Sec.

250usec.250usec.250usec.

OUTPUT MAXIMUMVOLTAGE DURATION VOLTAGE DURATION

114. 6Vrms .0. 070VDC(p-p)114. 6Vrms ..0, 275VDC(p-p)114. 6Vrms '. 400VDC(p-p )

The resultant voltage spik'es on the input (Class 1E) side oFthe i solator exceeded the acceptance criteria voltages oFSection 8 6. 6. However> the pulse duration was much shorterthan the maximum allo~ed. The: control signai was notaffected (other than the pulse) and the transmitter con-tinued its function aFter the application of the voltage.The isolator < in all three cases) performed its intendedFunction bg not allotting the Maximum Credible Fault voltageto adversity affect the Class 1E Function.

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