ML20204H434

Proposed Tech Spec Changes,Correcting Hydrogen Concentration from 2% to 4% in Action Statement B of Section 3.11.2.5

ML20204H434
Person / Time
Site:	Davis Besse
Issue date:	11/01/1984
From:	TOLEDO EDISON CO.
To:
Shared Package
ML20204H392	List: ML20204H388 ML20204H410 ML20204H434
References
NUDOCS 8411120290
Download: ML20204H434 (1)

Text

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RADI0 ACTIVE EFFLUENTS

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EXPLOSIVE GAS MIXTURE.(Hydrogen rich systems not designed to withstand a hydrogen explosion)

LIMITING CONDITION FOR OPERATION 3.11.2.5 The concentration of oxygen.in the waste gas system shall be limited to less than or equal to 2% by volume whenever the hydrogen concentration exceeds 4% by volume.

APPLICABILITY: At all times.

ACTION:

a. With the concentration of oxygen in the waste gas system

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greater than 2% by volume but less than or equal to 4%

by volume, reduce the oxygen concentration to the above limits, within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />,

b. With the concentration of oxygen in the waste gas system greater than 4% by volume and the hydrogen concentration greater than g // g by volume, immediately suspend all additions of waste gases to

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.the system and reduce the concentration of oxygen to less than or equal to 2% by volume without delay.

c. The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.

k-SURVEILLANCE REQUIREMENTS 4.11.2.5 The concentrations of oxygen in the waste gas system shall be determined to be within the above limits by monitoring the waste gases in the waste gas system as required by Table 3.3-16 of Specification 3.3.3.10.

DAVIS-BESSE, UNIT 1 841'1120290 841101 PDR ADOCK 05000346 PDR p

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