ML17192A676

Emergency Procedure DGA-13, Revision 0, Area High Radiation.

ML17192A676
Person / Time
Site:	Dresden
Issue date:	05/31/1975
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML17192A611	List: ML17192A610 ML17192A671 ML17192A672 ML17192A673 ML17192A674 ML17192A675 ML17192A676 ML17192A677 ML17192A678 ML17192A679 ML17192A680 ML17192A681 ML17192A682 ML19323A953
References
DGA-13, NUDOCS 8005080510
Download: ML17192A676 (1)

Text

8_D...0~U8 O-S*.~A-13 *

• Revision-0 AREA HIG~ RADIATION

• May 1975 A. SYMPTOMS

1. Routine survey indicates high radiation.

2. ARM or MAIN STEAM LINE HIGH* RADIATION. alarm.

3. Removal or re-arrangement of shielding.

4. Removal of source from its shielded container.

B. AUTOMATIC ACTIONS

1. SBGTS starts and* reactor building ventilation system isolates when radiation levels reach llMR'reactor building ventilation exhaust or lOOMR refueling floor.

C. IMMEDIATE OPERATOR ACTIONS

1. Verify automatic actions, if radiation levels reach trip points in-dicated in 8.1.

2. Assign personnel to guard entry to the area and prevent access. Use Public address system to warn personnel of access restrictions.

D. SUBSEQUENT OPERATOR ACTIONS

(.' \

1. Locate the source of radiation.

2. Survey to ~eter~ine the limits of the high radiation area and establish a controlled crea.

3. Install temporary shielding~ place the source of radiation in a shielded container, or. reduce reacto~ .power as applicable.

4. Follow abncr:-::al procedure for fuel element failure high radiation if applicable (DGA-16).

5.

• Assemble personnel who may have been exposed and read thei*r dosimeters.

If necessary, restrict their further exposure and have film badges developed.

6. Notify Radiation-Chemical Supervisor and request assistance in restor-ing area to previous backgro~nd levels.

]. Refer to Dresden Radiation Control Standards and OSEP.

E. DISCUSSION

1. When levels of radioactivity.exceed lOOMR/hr in an area where the dose rate has previously been less than this amount, a high radiation area emergency exis~s.

APPRC""ED AUG i. ~.*:

1 (final)

D. 0. S. R.