ML18023A765

Letter Responding to NRC Letters Dated February 18, 1975 and March 14, 1975 Containing NRC Staff Positions

ML18023A765
Person / Time
Site:	Susquehanna
Issue date:	05/13/1975
From:	Curtis N Pennsylvania Power & Light Co
To:	Butler W Office of Nuclear Reactor Regulation
References
840-2, ER 100450, PLA-67
Download: ML18023A765 (4)

Text

RC DISTAIBUTION FOR PART 50 DOCKET MATERIAL (TEfrj!POBABY FORM)

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pennsylvania Power 6 Liglr DATE OF 'DOC DATE BEC'D LTR TV/X RPT OTHER Co. Allentown,pa.

t'uttis 5-13>>75 5-19-75 XX xx TO: ORIG CC OTHER SENT AEC PDR xxx Dry Walter R. Butler 1.<<signed SENT l.OCAL PDB CLASS UNC LASS PROP INFO INPUT NO CYS REC'D DOCKET NO:

xxxx, 1 50-387 an 388 DESCR IP1 IOiN: ENCLOSURES:

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>>y 13, 1975 Docket Nos. 50-387 and 50-388 Dr. 4'alter R. Bu ler, Chief Light 'Inter Reactors Branch 1-2 Division at Reactor Licensing U.S. Nuclear Regulatory Comnission Washington, D.C. 20555 SU~UEHAITNL STEAII ELECTRiC STATIQN RESP0NSE TO NRC STAFF POSiTi0NS ER 100450 FiLE 840-2 m.-6

Reference:

1) NRC letter from Dr. N. R. Butler to bfr. N. N. Curtis dated, 2/18/75.

2) NRC letter fro,, D . U. R. Butler to Ih. N. N. Curt's dated 3/14/75.

Dear Dr. Butler:

The following are responses o two of the S aff's po itions in Reference 1:

STAFF PCSXTi0N 2:

Tnc proposed cnange to caole tray loading depth cri eria (le. ANS'rZR 1 on page 11) is unacceptable. t,"e would find the revised. criteria acceptaole i they oere supplemented, by tne words appea ing in lc ANSI'" R 1 on page ll for cable trays in non-highly concentrated" areas and a commitment to conform of ATRendmen I'lo. 8.

to XPCEA Publication No. P54-440 as issued July 19, 1972 ..

RESPONSE

Please refer to Amendment No. 8 (Page 11, Answer 1 amended oy Amendment No. 16) and revise Answer 1 as follows:

Cable trays with 6 inch (outside) side rails and a 5 inch (inside) depth are used for instrument and. control cables . Cable trays with 4 inch (outside) side-rails and a 3 inch (inside) depth are used for power, instrument and control cables. Tray f'll will not exceed. 30 percent of the tray cross section area.

%/<~I~ Q PENNSYLVANIA POWER 8 LIGHT COMPANY

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Page 2 The depth of cables in each type of tray conforms to IPCEA Publication No. P54-440, dated July 19, 1972.

STAFF POSITION 3'he change in seismic analysis methods on page C.4-2 is not acceptable. Tne methods of analysis specified in the PSAR prior to Amendment No. 16 should be usedi

RESPONSE

The method specified in the PSAR prior to Amendment 16 will be used.

The above corrections will be included in 'a future PSAR Amendment.

Very truly yours,

'(id 6,wC.

N. vf. Curtis Vice-President-Engineering and Construction Sworn to and subscribed before me this /"(: "~ of 'p 1975 g~ .,"c I-~/ iso"'c/:3 Notary Publ'c lp commission expires: r'l~-u.h +y~>)4