ML20205Q668

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Rev 0 to Maint & Insp Procedure Mi 3, Procedure for Confirming Full Thread Engagement Via Eye Rod Measurement for Rigid Sway Struts. Related Documentation Encl
ML20205Q668
Person / Time
Site: Comanche Peak  
Issue date: 09/26/1980
From:
NPS INDUSTRIES, INC.
To:
Shared Package
ML20205Q559 List:
References
FOIA-85-59 MI-3, NUDOCS 8606020322
Download: ML20205Q668 (4)


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Dated Revision No.

MI No.

3 9/26/80 0

PROCEDURE FOR CONFIRMING FULL THREAD TITLE: ENGAGEMENT VIA EYE ROD MEASUREMENT FOR RIGID SWAY STRUTS SCOPE OF:

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APPROVAL SIGNATURES Original Issue Rev.1 Rev.2 Rev.3 7)2

$O Prepared By:

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Revision No.

Title:

3 PROCEDURE FOR CONFIRMING FULL THREAD

  1. 3 O

ENGAGEMENT VIA EYE ROD MEASUREMENT FOR RIGID SWAY STRUTS Page_ 1 or g I

Date:

9/26/80 I

i l

A.

Forged Eye Rods:

I' 1.

Determine sway strut size by measurement of rod diameter or checking size code forged into the eye' rod.

2.

Verify design C-C equals or exceeds the minimum value listed in l

Table 1 or Measure L and determine if it equals or exceeds the minimum value listed in Table 1.

3A.

If C-C or L equals or exceeds minimum value, verify DL and DR do not exceed maximum values listed.

3B.

If C-C or L is less than the minimum value, unpin one end of strut and verify by unscrewing rod ends that the ends are upset and/or are ibily engaged.

l TABLE 1 l ROD SIZE STRUT SIZE C-C MIN.

L MIN.

DL MAX.

DR MAX.

3/4 06 19-3/8 9-1/2 5.13/16 6-9/16 1

08 21-1/2 10 6,1/2 7-1/2 1-1/4

.10 24-3/4 10-1/2 7-3/4 9

1-1/2 12 23-1/4 11 6-5/8 8-1/8 28-1/4 11-1/2 8-3/4 10-1/2 1-3/4 14 DL DR

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Revision No.

Title:

PROCEDURE FOR CONFIRMING FULL THREAD MIY3 I

0 ENGAGEMENT VIA EYE ROD MEASUREMENT FOR RIGID SWAY STRUTS Page l or p

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9/26/80 5

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B.

Fabricated Eye Rods:

i i

1.

Determine sway strut size by measurement of rod diameter.

2.

If strut is Size 20, detemine if it. is long pattern or short i

pattern by measuring E.

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3.

Verify design C-C equals or exceeds the minimum value listed in Table 2 or measure L and determine if it equals or exceeds the minimum value listed in Table 2.

4A.

If C-C or L equals or exceeds minimum value, verify FL and FR do not exceed maximum values listed.

4B.

If C-C or L is less than the minimum value, unpir 0eEMTION strut and verify by unscrewing rod ends that the en!s are s

upset and/or are fbily engaged.

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s ROD SIZE E

STRUT SIZE C-C MIN.

L MIN.

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rn m.

3/4 06 '

19-5/8 9-i/2 5-7/16 6-3/16 1

08 21-1/8 10 5-13/16 6-13/16 1-1/4 10 24-1/8 10-1/2 6-15/16 8-3/16 1-3/4 14 31 11-1/2 9-5/8 11-3/8 2-1/2 5-3/8 20 (short) 31-1/2 13 8-3/4 11-1/4 2-1/2 8-5/8 20 (long).

38 13 12 14-1/2 3

24 41-1/4 14 12-7/8 15-7/8 I

4-1/2 36 54-1/2 17 17-1/4 21-3/4 FL FR

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secoucus.newJerseg07094 201863 6550 telex 14-1435 October 23, 1980 HPSI-12-1052 Yh.

Texas Utilities Services, Inc.

p Cg#p O-P.O. Box 1002 f

g Glen Rose, Texas 76043 9

y Pg Attention:

J.T. Merritt, Jr./R.T. Wolantejus 8g

Subject:

Texas Utilities Gen. Co.

64 Comanche Peak Stm. Elec. Sta.

Units 1 and 2 Purchase Order No.

CP0046 A.1

Subject:

(PMI No. 3.1.2) Thread Upsetting on Welded Sway Struts Ref. :

NPSI-12-1016, TUX-12,489 Gentlemen:

NPS Industries is-transmitting to TUSI (PMI No. 3.1.2, Rev. 0)

Thread Upsetting on Welded Sway Struts procedure for your use.

If I can be of.any further assistance,. please do not hesitate to contact me.

Very truly yours, NPS INDUSTRIES, INC.

MA Herman W. D'Errico Project Manager IrdD :rc: ;

Attachments:

(1) 2 pages cc:

H.R. Rock, G&H 2L D.C. Frankum, B&R 1L J.T. Merritt, TUSI OL, 1L, 1A R.E. Holloway, G&H 1L J. Oliver, NPSI G TUSI 1L 4