ML19317E130
| ML19317E130 | |
| Person / Time | |
|---|---|
| Site: | Oconee, Mcguire, McGuire  |
| Issue date: | 04/05/1977 |
| From: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Parker W DUKE POWER CO. |
| References | |
| NUDOCS 7912130841 | |
| Download: ML19317E130 (1) | |
Text
4 p Mco UNITE D STATES g
f,.
NUCLEAR REGULATORY COMMISSION '
y ;
'g./ [* g REGION 11
^f g
23G PE ACHTREE ST A EET. N.W SutTE 1217
-1 c,.
[.A
[
ATLANT A GEORGI A 30303 APR 5 1977
~
{f
.{[
f
-j
,< i In Reply Refer To:
IE:II:NCM 50-369 50-370 30-269 50-270 50-287 Duke Power Ccspany ATTN:
Mr. Willia C. Parker, Jr.
Vice President of Stea Production h22 South Church Street F. O. Ecx 2178 Char 10tte, Ucrth Carolina 262h2 Gentlemen:
The enclosed Circular is being distributed for infomation, in the belief that the subject matter is of sufficient safety signifi-cance to warrant specific attention.
A reply is not requested.
Sincerely, f
Norman C. Moseley Director
Enclosure:
" Effects of Hydraulic Fluid on Electrical Cables"
,/
/
/
I 1
0 87/
Q 791213
.A..l
~
IE Circular 77-06 Date: April 5, 1977 Page 1 of 1 EFFECTS OF HYDRAULIC FLUID ON ELECTRICAL CABLES DESCRIPTION OF CIRC'H, STANCES:
Commonwealth Edison Company, by letter to the NRC dated April 1,1976, (copy enclosed), described the circumstances under which fire resistant hydraulic fluid had a deleterious effect on the insulation and jacketing of electrical cables.
Vnile the solvent characteristics of phosphate-ester fire resistant fluids are well documented in literature, it appears that this information may not be generally available to nuclear power plant operating staffs. Our evaluation of this occurrence emphasizes the enportance of:
1.
Reviewing design and operating procedures for systems containing synthetic hydraulic fluids and other potentially aggressive fluids to minimize the probability of leakage, overflow or inadvertant spill or fluid.
l 2.
Reviewing housekeeping practices to assure that they provide for prompt cleanup of spills or leakage of any type of fluid.
Enclosure:
Letter from Ccc:nonwealth Edison Co.
l to J. I*eppler, Director, Region III l
dtd. 4/1/76 l
j
/
3 0 0.10 0 o L (,
DUPLICATE DOCUMENT C-Oum Entire document previously entered into system under:
h[
ANO No. of pages:
_.