ML17053A549

From kanterella
Jump to navigation Jump to search
Request for Addl Info Re Environ Qualification of Connectors Inside Containment
ML17053A549
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 03/08/1979
From: Ippolito T
Office of Nuclear Reactor Regulation
To: Dise D
NIAGARA MOHAWK POWER CORP.
References
NUDOCS 7904020041
Download: ML17053A549 (6)


Text

,0 rh Distribution ocket ORB ¹3 llRR Reading Local PDR NRC PDR HDenton VStello BGrimes TIppolito PPolk

" 'SSheppard Atty, OELD OISE (3)

DEisenhut RVollmer TERA JRBuchanan-ACRS (16)

"lARChl 8

~gag Docket No. 50-220 h'Ir. Donald P. Disc Vice President -'ngineer ing

. Niagara mohawk Power Corporation-300 Erie Boulevard liest r

Syracuse, New York 13202

Dear Hr. Disc:

r Your submittals of November 30, 1977, January 30, April 3, and June 14, 1978, conce ing environmental qualification of connectors located inside containment, e being reviewed by our staff.

In order to complete ou'r review, you are requested to provide within 30 days of receipt 'of, this letter, the additional information r

identified in the enclosure.

h r'+h

Enclosure:

Request for Additional Information r

cc w/enclosure:

See next page Sincerely, Sinai Signed by 7~A'g~~

Thomas A. Ippolito, Chief Operating Reactors Branch ¹3.

Division of Operating Reactors veo4o2oodt orrIcc~

OURNAMCW OB¹3 eyyard 3/7 /79 RB ¹3 PPolk:mjf 3/ t/79'

¹ o

0 3/f /79 NRc ARM 518 (9.yg) NRCM 0240 II C OOVNNNMNNTPNINTINO OrrICNI I ~ T ~ Nl T ~ 0

~ ~

VVfa'I I I v.

'II

~ >tif/ ~ "'

~

I

.-* gjI,gI.1 e 0 e ~

ee-

.I I'C"-

I

.Niagara Mohawk,,Power-Corporation IARCH 8

>979 cc:

Eugene B. Thomas, Or., Esquire

LeBoeuf, Lamb, Leiby 5 MacRae 1757 N Street, N.

W.

Washington, D. C.

20036 Anthony Z.

Roisman Natural Resources Defense Council 917 15th Street,,

N.

W.

Mashington, D.

C.

20005 Oswego County Office Building 46 E. Bridge Street

Oswego, New York 13126

Enclosure RE VEST FOR, ADDITIONAL INFORMATION NINE MILE POINT UNIT 1

QUALIFICATION OF CONNECTORS l.

Identify the post accident design criteria (temperature,

pressure, humidity and radiation) for safety related connectors located inside containment and the time periods for which connectors will be required to be operational.

Also state the consequences of connector failure following the time period for which the connectors are qualified.

2.

Explain lower insulation resistance measurements occurring at 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />

'to the end*of"the 'test for "five pin'No.

16 connector'as shown 'in Table 3B page 3-5 in test results submitted under, NIAGARA MOHAllK'S letter of June 14, 1978.

Justify continued use of this type connectors.

'I,II I