ML19345E207
| ML19345E207 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/18/1980 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML19345E204 | List: |
| References | |
| NUDOCS 8012230453 | |
| Download: ML19345E207 (2) | |
Text
~b (d
CONTAINMENT SYSTEMS HYDROCEN CONTROL INTERIM DISTRIBUTED IGNITION SYSTEM LIMITING CONDITION FOR OPERATION 3.6.4.3 The primary containment interim distributed ignition system shall be operable.
APPLICABILITY Modes 1 and 2.
ACTION With the interim distributed ignition system inoperable, restore the inoperable system to OPERABLE status within 30 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVEILLANCE REQUIREMENTS 4.6.4.3 The interim distributed ignition system shall be demonstrated OPERABLE at least once per 92 days by energizing the breakers and verifying that at least 30 glow plugs are energized.
8012280 f53
e a
BASES 3/4.6.4.3 Ilydrogen Control Interin Distributed Ignition System The operability of at least 30 of the 32 ignitors in the hydrogen control distributed ignition system will maintain an effective coverage throughout the containment. This system of ignitors will initiate combustion of any significant amount of hydrogen released af ter a degraded core accident.
This system is to ensure burning in a controlled manner as the hydtagen is released instead of allowing it to be ignited at high concentrations by a random ignition source.
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