ML20195J803
| ML20195J803 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/31/1987 |
| From: | Childres W, Riner G TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20195J745 | List: |
| References | |
| SME-MET-87-064, SME-MET-87-64, NUDOCS 8801290018 | |
| Download: ML20195J803 (8) | |
Text
B46 '87 0831 005 TENNESSEE VALLEY AUTHORITY DIVISION OF NUCLEAR ENGINEERING NUCLEAR ENGINEERING BRANCH SINGLETON MATERIALS ENGINEERING LABORATORY SEQUOYAH NUCLEAR PLANT IMPACT TESTING OF ROCKBESTOS AND ANACONDA CABLES SFI-MET-87-06 4 August 31, 1987 l
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SEQUOYAH NUCLEAR PLANT IMPACT TESTING OF ROCKBESTOS AND ANACONDA CABLFR In a continuation of cable damage assessment, a lenJth of two new cables was provided to Singleton Materials Engineering Laboratory (SME) for evaluation.
The identifications of these two cables are given below:
Cable, 1/C-14 Awg, 600V Rockbestos Cable Type - SROAJ - WB Reel No. 14310, Mfg. Reel No. 71918A MK WPA, Contract 839046 Cable, Cu, 14 AWG S/C 60CV Anaconda Cable VIE-1898 2-1 100' Ref 825997 Small voids for: on the inside surface of rubber insulation when electrical cables are subjected to impact forces.
In order to determine the impact energy capable of creating a void in the rubber insulations of
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these cables, a small laboratory drop weight impact tester was employed (see figure 1). The total tass of the drop weight was 11.8 lbs and, when dropped from various heights, could provide a variable known value of impact energy.
The impact energy at which no voids occured in test sa:ples when dropped on a 2-in. section of cable was determined to be 6.4 f t-lb for the Anaconda cable and 8.9 f t-lb for Rockbestos cable.
Table 1 gives observations obtained on the flat impacts perforced as shown in figure 1 as applied through the 2-in. dia drop weight for the Rockbestos cable.
Table 1 lists similar impacts for the Anaconda cable.
Samples 1 and 2 given in both tables are control samples with no impact (as-received) and shok no signs of voids.
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Table 1 SEQUDYAH NUCIPAR PALNT DROP VEIGHT TESTS ON ROCKBESTOS CABLE Rockbestos Cable 1/C-14 AWG 600V Type - SROAJ - WB Reel No. 14310 Mfg Reel No. 71918A, MK WPA Contract 839046 Tmbact Enerev. f t/lb Sarole ID Weinht/ Heiaht Extent of Dammae Ib in.
0 1
Control No damage.
0 2
Control No damage.
5.5 3
55 12 No damage.
11.8 4
11.8 12 Slight track marks on top and bottom where impact applied. 7 voids.
79 5
11.8 8
Very slight track marks on impact face, 98 6
11.8 10 No track marks.
No voids.
e 9.8 7
11.8 10 Very slight track marks.
3 voids.
8.9 8
11.8 9
Very slight track marks.
No voids.
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t Table 2 SEQUOYAH NUCLEAR PALNT DROP WEIGHT TESTS ON ANACONDA CABLE Anaconda Cable, Cu, 14 AWG S/C 600V VIE-1898 2-1 100' Ref 825997 Tmonet Enerry. f t/ lb Samole ID Weicht/ Heicht Extent of Damnee Ib in.
0 1
Control No damage.
0 2
Control No damage.
5.5 3
5.5 12 No damage.
11.8 4
11.8 12 No track marks.
11 voids.
9.8 5
11.8 10 No track marks. 6 voids.
1 8.9 6
11.8 9
No track marks.
6 voids.
_79 7
11.8 8
No track marks.
3 small voids.
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11.8 75 No track marks.
3 small voids.
6.9 9
11.8 7
No track marks.
1 s=all void.
6.4 10 11.8 6.5 No track marks.
No voids.
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Tennessee Valley Authority Singleton Materials Engineering Laboratory EQUIPMENT USAGE LOG Report i SME-MET-87-064 Date: 09/08/87 Due Item ID Calibrated Recalibration SOLUTION BALANCE E07395 09/02/87 03/02/88 STEEL RULER E07325 12/16/86 12/16/87 I
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1 ATTACHMENT 4 MEMORANDUM FROM R. L. MORLEY TO W. S. RAUGHLEY INSULATION HALL THICKNESS MEASUREMENT November 23, 1987 l
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h TVA 60 (05 9 65) (OP-w9 5 85)
EIS 871123 200 UNITED STATES GOVERN.TIENT
- Memorandum TENNESSEE VALLEY AUTHORITY C
20 W. S. Raughley, Chief Electrical Engineering Branch, DNE, W8 C126 C-K 0Y FROM Richard L. Morley, Chief, Central Laboratories Services Branch, LA PSC 1-C DATE
- November 23, 1987
SUBJECT:
INSULATION WALL THICKNESS MEASUREMENT Attached is the final report containing the results of the test that Central Laboratories Services Branch (CLSB) performed on silicone rubber insulated cables for the Division of Nuclear Engineering.
We hope that the report will assist you and look forward to continuing to support your future needs.
Should you have any questions or additional needs, please feel free to contact CLSB.
WGJ:XM Attachment
-ce (Attachment):
, Brian Reagan, W8 C162 C-K s
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0096S Buy U.S. Savings Bonds Regularly on the Papoll Savings Plan 1