ML17272A892

Interim Deficiency Rept Re Potential missile-producing nonsafety-related Equipment Installed in Class IE Area. Protective Barriers Are Being Designed to Preclude Damage to Class IE Equipment in Event of Flywheel Failure

ML17272A892
Person / Time
Site:	Columbia
Issue date:	03/21/1980
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17272A890	List: ML17272A889 ML17272A892
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8004020296
Download: ML17272A892 (1)

Text

WPPSS NUCLEAR PROJECT N0.2 REPORTABLE DEFICIENCY AND CORRECTIVE ACTION FOR INSTALLATION OF MISSILE PRODUCING E(UIPMENT WITHIN CLASS IE AREA WASHINGTON PUBLIC POWER SUPPLY SYSTEM DOCKET NO. 50-397 LICENSE NO.

CPPR-93 Discri tion of deficienc The potential missile producing nonsafety related RPS MG Sets are installed in a Class IE Area.

This installation arrangement imposes a

potential hazzard to the safety related. equipment in the area.

Safet Si nificance In the event of a flywheel failure, the lack of positive protection barriers between the RPS M G Set flywheels and the adjacent Class IE equipment could result in the loss of or damage to, safety related equipment in the area.

In this instance, assuming a single failure in one Division, the alternate Division could be disabled due to a missile generating failure of the RPS M G Sets.

Corrective Action Protective barriers are being designed.

The installation of these protective barriers, in the event of a RPS M G flywheel failure, wi 11 preclude any potential missile damage to the Class IE equipment in the area.

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