ML20133F264

Proposed Rev to Tech Spec 3/4.7.10,adding Continuous or Hourly Fire Watch Patrol Until Temporary or Inoperable Fire Barrier Permanently Repaired

ML20133F264
Person / Time
Site:	Millstone
Issue date:	10/01/1985
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20133F234	List: B11733, Rev to 850528 Application to Amend License DPR-65,adding Continuous or Hourly Fire Watch Patrol Until Temporary or Inoperable Fire Barrier Permanently Repaired.Determinations Re 10CFR50,App R Still Applicable ML20133F264
References
TAC-57809, NUDOCS 8510100174
Download: ML20133F264 (3)

Text

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Docket No. 50-336 Attachment Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specification 3/4.7.10 Penetration Fire Barriers.

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October 1985 E '88&M 88&884u P PM

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PLANT SYSTEMS 3/4.7.10 PENETR ATION FIRE BARRIERS LIMITING CONDITION FOR OPER ATION 3.7.10 All fire rated assemblies (walls, ficor/ ceilings, cable tray enclosures, and other fire barriers) separating safety-related fire areas or separating portions of redundant systems important to safe shutdown within a fire area and all sealing devices in fire rated assembly penetrations (fire doors, fire windows, fire dampers, cable, piping, and ventilation duct penetration seals shall be OPERABLE.

APPLICABILITY: At all times unless otherwise determined that the separation of saf ety-related fire areas or separating portions of redundant systems important to safe shutdown within a fire area is not required based on the MODE of operation.

ACTION:

a. With one or more of the above required fire rated assemblies and/or penetration sealing devices inoperable, within 1 hour:

1. determine that the fire areas / zones on both sides of the affected fire rated assembly and/or penetration sealing device are monitored by either an OPERABLE fire detection or automatic suppression system and establish a fire watch patrol that inspects both areas at least once per hour, g

2. establish a continuous fire watch on at least one side of the affected fire rated assembly and/or penetration seal, E

3. temporarily repair the inoperable fire rated asseinbly and/or sealing device and classify h as temporary.

All temporary or inoperable fire rated assemblies and/or sealing devices sha!! be permanently repaired within thirty (30) days, or implement action 1 or 2 above,

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

l MILLSTONE - UNIT 2 3/4 7-42 l

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SURVEILL ANCE REQUIREMENTS 4.7.10 The above required fire ratco assemblies and penetration sealing devices shall be verified to be OPER ABLE by a visual inspection: ,

a. At least once per IS months for fire doors and fire dampers.

l b. At leas.t once per IS months for fire barrier penetration seals, on at least 10% of the total number of penetration seals. If any of the

.l' penetration seals in the inspection sample are found to be inoperable, then an additional 10% sample of the total number of penetrations

! seats shall be visually inspected. Sampling and inspection shall continue until all of the seals in a sample are found OPER ABLE or 100% of the seals are inspected,

c. Prior to returning a fire rated assembly and/or penetration sealing device to OPERABLE status following repairs or maintenance.

MILLSTONE - UNIT 2 3/4 7-43

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