ML19344F453

Proposed Change 80-3 to App a Tech Specs,Section 1 Re Definition of Operable as It Applies to Single Failure Criterion for Safety Sys

ML19344F453
Person / Time
Site:	Pilgrim
Issue date:	09/01/1980
From:	BOSTON EDISON CO.
To:
Shared Package
ML19344F452	List: BECO-80-211, Application for Proposed Change 80-3 to License DPR-35,re Definition of Operable as Applied to Single Failure Criterion for Safety Sys.Request Is in Response to IE Info Notice 79-35 & NRC .Fee Encl ML19344F453
References
NUDOCS 8009150285
Download: ML19344F453 (1)

Text

!; ;...

~

'~

.ATT*CHMENT A 1.0 DEFINITIONS (Cont'd)

. (a s.)

E.

Operable - Operability A system, subsystem, train, component or device ehall be OPERABII or have OPERABILITY when it is capable of performing its specified function (s).

Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal and emergency electrical pawer sources, cooling or seal water, lubrication or other auxiliary equipment that are required for the system, subsystem, train, component Or device to perform its function (s) are also capable of performing their related support function (s).

i F.

Operating - Operating means that a system or component is perform-ing its intended functions in its required manner.

G.

Immediate - Immediate means that the required action will be ini-tiated as soon as practicable considering the safe operation of the unit and the importance of the required action.

H.

Reactor Power Operation - Reactor power operation is any operation with the mode switch in the "Startup" or "Run" position with the reactor critical and above 1% design power.

I.

Hot Standby Condition - Hot standby condition means operation with

- coolant temperature greater than 212 F, system pressure less than 0

600 psig, the main steam isolation valves closed and the mode switch in startup.

J.

Cold Condition - Reactor coolant temperature equal to or less than 212 F.

K.

Mode - The reactor mode is that which is established by the mode-selector-switch. The modes include shutdown, refuel, startup and run which are defined as follows:

1.

Startup Mode - In this mode the reactor protfetion scram trips, initiated by condenser low vacuum and main steam line isolation i

8009150286.

2 J

'