ML20053C742

Proposed Tech Spec Table 3.2.C Re Instrumentation That Initiates Control Rod Blocks

ML20053C742
Person / Time
Site:	Peach Bottom
Issue date:	05/20/1982
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20053C732	List: ML20053C731 ML20053C735 ML20053C742
References
NUDOCS 8206020522
Download: ML20053C742 (3)

Text

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TABLE 3.2.C INSTRUMENTATION THAT INITIATES CONTROL ROD BLOCKS Minimum No.

Instrument Trip Level Setting Number of Instrument Action of Operable Channels Provided Instrument by Design Channels Per Trip System 4

APRM Upscale (Flow d(0.66W+42-0.664W) x 6 Inst. Channels (9) l Biased)

FRP MFLPD (2) 4 APFM Upscale (Startup 112%

6 Inst. Channels (9) l Mode) 4 APRM Downscale 12.5 indicated on 6 Inst. Channels (9) l scale 1 (7)

Rod Block Monitor 1(0.66W+41-0.66AW)x 2 Inst. Channels (1)

(Flow Biased)

FRP MFLPD (2) 1.5 indicated on 2 Inst. Channels (1) 1 (7)

Rod Block Monitor 2

Downscale scale 1.5 indicated on 8 Inst. Channels (9) l 6

IBM Downscale (3) 2 scale 6

IBM Detector not in (8) 8 Inst. Channels (9) l Startup Position 6

IRM Upscale 1108 indicated on 8 Inst. Chant.el s (9) l scale 2 (5)

SRM Detector not in (4) 4 Inst. Channels (1)

Startup Position 2 (5) (6)

SEM Upscale 110 counts /sec.

4 Inst. Channels (1)

8206020522 820526 PDR ADOCK 05000277 P

PDR t

PBAPS 9.

For the Startup (for IRM rod block) and the Run (for APRM rod block) positions of the Reactor Mode Selector Switch and with the number of OPERABLE channels :

a.

One less than required by the Minimum OPERABLE Channels per Trip Function requirement, restore the inoperable channel to OPERABLE status within 7 days or place the inoperable channel in the tripped condition within the next hour.

b.

Two or more less than required by the Minimum OPERABLE Channels per Trip Function requirement, place at least one inoperable channel in the tripped condition within one hour.

l l

r

- 74a -

I

Philadelphia Electric Company Peach Bottom Atomic Power Station ROD WITHDRAWAL BLOCK SIMPLIFIED SCHEMATIC (APRM and IRM circuits only) 120 V.

INSTRUMENT POWER p_

l I

CHAN A

CHAN Cl:

I I

l

CHAN E

CHAN Gl REACTOF kcaciOR MODE l

lRM I::

MODE SWITCH l

CHAN B

CHAN DI SWITCH.

I bCHAN Hl i

CHAN F l

I g

L__

_____s r-I I

I

CHAN A

CHAN C I I

i

CHAN E APRM

CHAN B I

l 1

I l

l

CHAN D

CHAN F I I

L__ __

l

/ 3AKl*

/ 3AK2' 120 V.

INSTRUMENT POWER ROD WITHDRAWAL ROD WITHDRAWAL BLOCK NO.1 BLOCK NO. 2 (DE-ENERGlZED TO BLOCK)

(DE-ENERGlZED TO BLOCK)

EXHIBIT A

• DE-.ENERGlZE EITHER 3AK1 OR 3AK2 TO BLOCK