Text

NRC Triennial Fire Protection Inspection Report 05000275/2018007 and 05000323/2018007
	ML18331A095
Person / Time
Site:	Diablo Canyon
Issue date:	11/26/2018
From:	Greg Werner; NRC/RGN-IV/DRS/EB-2
To:	Welsch J; Pacific Gas & Electric Co
	Werner G
References
	IR 2018007
	Download: ML18331A095 (14)
	v • d • e

November 26, 2018

SUBJECT:

DIABLO CANYON POWER PLANT, UNITS 1 AND 2 - NRC TRIENNIAL FIRE PROTECTION INSPECTION REPORT 05000275/2018007 AND 05000323/2018007

Dear Mr. Welsch:

On November 1, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Diablo Canyon Power Plant, Units 1 and 2. The NRC inspectors discussed the results of this inspection with Mr. J. Nimick, Senior Director, Nuclear Services, and other members of your staff. The results of this inspection are documented in the enclosed report.

The NRC inspectors did not identify any finding or violation of more than minor significance.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely,

/RA/

Gregory E. Werner, Chief Engineering Branch 2 Division of Reactor Safety

Docket Nos. 50-275 and 50-323 License Nos. DPR-80 and DPR-82

Enclosure:

Inspection Report 05000275/2018007 and 05000323/2018007

Inspection Report

Docket Numbers:

05000275, 05000323

License Numbers:

DPR-80, DPR-82

Report Number:

05000275/2018007 and 05000323/2018007

Enterprise Identifier: I-2018-007-0004

Licensee:

Pacific Gas and Electric Company

Facility:

Diablo Canyon Power Plant, Units 1 and 2

Location:

Avila Beach, California

Inspection Dates:

October 15, 2018, to November 1, 2018

Inspectors:

S. Graves, Senior Reactor Inspector (Team Lead)

C. Bickett, Senior Reactor Inspector, Region I

B. Correll, Reactor Inspector

N. Okonkwo, Reactor Inspector

Accompanied:

A. Athar, Reactor Inspector

Approved By:

G. Werner

Chief, Engineering Branch 2

Division of Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a fire protection (NFPA 805 - Triennial) inspection at Diablo Canyon Power Plant, Units 1 and 2, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified during the inspection.

INSPECTION SCOPE

Inspections were conducted using the appropriate portions of the inspection procedures (IPs)in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html.

Samples were declared complete when the IPs requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

REACTOR SAFETY

===71111.05XT - Fire Protection - NFPA 805 (Triennial) The inspectors evaluated the following from October 15, 2018, to November 1, 2018.

Fire Protection Inspection Requirements===

Main article: IP 71111.05

The inspectors evaluated fire protection program implementation in the following selected areas and/or fire zones, including analyzed electrical circuits:

Fire Area Description 7-A Unit 1, Cable Spreading Room 8-H Unit 2, Solid State Protection System Room Unit 1, 12 kV Switchgear Room TB-10 Unit 2, 4 kV Switchgear Room and Cable Spreading Room, F Bus TB-11 Unit 2, 4 kV Switchgear Room and Cable Spreading Room, G Bus TB-12 Unit 2, 4 kV Switchgear Room and Cable Spreading Room, H Bus

B.5.b Inspection Activities (1 Sample)

The inspectors evaluated feasibility of the following B.5.b Mitigating Strategy:

EDMG EDG-8, Manual Operations to Control Steam Generator Water Level, Revision

INSPECTION RESULTS

The NRC inspectors did not identify any finding or violation of more than minor significance.

EXIT MEETINGS AND DEBRIEFS

On November 1, 2018, the inspectors presented the triennial fire protection inspection results to Mr. J. Nimick, Senior Director, Nuclear Services, and other members of the licensee staff. The inspectors verified no proprietary information was retained or documented in this report.

DOCUMENTS REVIEWED

71111.05XT - Fire Protection - NFPA 805 (Triennial)

Condition Reports

50038548

50998600*

51001023*

51000728*

51002303*

50522666

50998604*

50854730

51001014*

50895475

50523380

51001171*

51001107*

51000841*

51001022*

50523803

51001268*

51001025*

50854735

51000729*

50524391

51001209*

51000499*

51001020*

51000923*

50998535*

51001024*

51002888*

51001015*

50984012

50982622

51002778*

51002853*

51001036*

A0732932

50305948

294777

51000823

51000922

51003054

51003070

51003053

Issued as a result of inspection activities.

Work Orders

60112165

64147217

200604

200605

200688

200937

202044

64148604

64182606

206262

206280

206281

206282

206283

64183007

206501

64188852

64190882

64191393

200406

200600

64185948

200601

206504

207187

68040626

204770

206498

64187362

205487

64148946

64149653

64169440

64174713

64178133

64192020

200603

64003982

64019052

64035540

64036282

64136705

64196877

64160966

64133861

64154464

64195891

64133937

64151706

64160967

64133229

64133228

64121838

64121837

Procedures

Number

Title

Revision

335-DC

Emergency Lighting and Communications

AD13.DC6

Fire Protection System Performance Based

Surveillance Program

5A

CF3.ID9

Design Change Development

CF3.ID9

Design Change Development

CF3.ID9

Design Change Development

CF6.ID1

Setpoint Control Program

CP M6

Site Fire Response

EDMG EDCG-1

ERO Guidance for Extensive Plant Damage Mitigation

1A

EDMG EDG-14

EDMG Equipment Annual Inventory

EDMG EDG-8

Manual Operations to Control Steam Generator Water

Level

EDMG EDMG-1

Extensive Damage Mitigation Guideline

4D

Procedures

Number

Title

Revision

MP E-57.2A

Wire and Cable Pulling

MP E-62.5A

Maintenance of Cutler Hammer 12 kV AM-VR Vacuum

Circuit Breakers

MP E-63.3A

Instruction for Assembly and Insulation of 4 and

kV Bus

MP E-63.3B

Potential Transformer Drawer Maintenance

MP E-63.3C-SHH

Maintenance of 4 kV Switchgear - Bus H

MP E-63.3D-SHH

Bus Connection Resistance Test - 4 KV Bus H

MP I-18-IFD

Incipient Fire Detection System Maintenance

MP I-18-IFDPRO

Incipient Fire Detection System Portable Detector

Routine Maintenance

OM10.ID6

Equipment Important to Emergency Response (EITER) 7

OM3.ID7

Portable Radio and Cellular Phone Use

OM5

Quality Assurance Program

OM8

Fire Protection Program

OM8

Fire Protection Program

OM8.ID4

Control of Flammable and Combustible Materials

OP A-4A:I

Pressurizer - Make Available

OP AP-26

Loss of Offsite Power

OP AP-8A

Control Room Inaccessibility - Establishing Hot Standby 45

OP AP-8A

Control Room Inaccessibility - Establishing Hot

Standby

OP K-2C

Fire Protection Network Operation

OP1.DC10

Conduct of Operations

OP1.ID2

Time Critical Operator Action

OP-K9

Instruction for Operation of the Diablo Canyon Power

Plant Radio System

STP I-18-IFD.A

Incipient Fire Detection System Operability and

Channel Functional Test

Procedures

Number

Title

Revision

STP I-29

Emergency Signals and Communications Systems

Functional Test

49A

STP M-70.SWG

Inspection of ECG Swing Type Doors

Design Documents

Number

Title

Revision

or Date

DCL-13-065

NFPA 805 Transition Report

June 26, 2013

Design Criteria

Memorandum S-18

Fire Protection System

Drawings

Number

Title

Revision

DSK-5000055903,

Sh. 1

Site Radio Interconnect Diagram

DSK-5000055903,

Sh. 2

Site Radio Interconnect Diagram

57563

Cable Tray and Conduit Layout, Plan Below

Elevation 119-0 Area A

57578, Sh. 1

Electrical Cable Tray and Conduit Layout, Plan below

Elevation 107-0 Area A

57579

Electrical Cable Tray and Conduit Layout, Turbine

Generator Building Area A Section

57597

Embedded Conduit Layout, El. 85-0 Area FW-GW

57606

Electrical Cable Tray and Conduit Layout Section E-E

and F-F Area H

57612, Sh. 1

Electrical Conduit Layout Plan, Below

Elevation 140 - 0, Area H

57658

Electrical Conduit Layout, Area P Outdoors

066689

Penetration Seal Typical Design Details

066689, Sh. 5 & 6

Fire Seal Design Detail F-1

2008, Sh. 4

Chemical and Volume Control

115

2014, Sh. 5

Component Cooling Water

2019, Sh. 6A

Liquid Radwaste System

106703, Sh. 3

Unit 1, Auxiliary Feedwater System

Drawings

Number

Title

Revision

106718, Sh. 4

Firewater Yard Loop

185

106718, Sh. 2 & 3

Firewater Yard Loop

183

106718, Sh. 7

Unit 1 and Unit 2 Turbine Building Hose Reel Stations

180

106718, Sh. 10

Unit 1 and Unit 2 Auxiliary Building Hose Reel Stations

181

111805, Sh. 16

Fire Department - Radiological Control Area and

H Block Elevation 140

111805, Sh. 17

Fire Department - Radiological Control Area and

H Block Elevation 140 Unit 1 and Common

111805, Sh. 26

Fire Department - H Block Elevation 128, 154, and

164

111805, Sh. 27

Fire Department - H Block Elevation 128, 154, and

164

111805, Sh. 49

Fire Department - Turbine Building Elevation 85

111805, Sh. 50

Fire Department - Turbine Building Elevation 85 and

Unit 1

111805, Sh. 51

Fire Department - Turbine Building Elevation 76

111805, Sh. 63

Fire Protection Drawing - Turbine Building

Elevation 104

111805, Sh. 64

Fire Protection Drawing - Turbine Building

Elevation 104 U2

111906, Sh. 3

Turbine Building Elevation 76

111906, Sh. 6

Turbine Building Elevation 85

111906, Sh. 12

Turbine Building Elevation 104

111906, Sh. 13

Turbine Building Elevation 119

111906, Sh. 23

Auxiliary Building Elevation 140

111906, Sh. 25

Auxiliary Building Elevations 128, 154, 164, and 174

334336

Thermal Electric Design Standard, Contact

Protector/Transient Suppressor for Solenoid Valves

and Relay Coils

345883, Sh. 1

TCOM System Diagram, Calif. Dept. of Forestry/San

Luis Obispo County Fire Dept. - Radio System

437513, Sh. 1

Diagram of Connections, Hot Shutdown Control Panel

Drawings

Number

Title

Revision

437518, Sh. 1

Single Line Diagram for Station Auxiliaries

437533

Electrical Single Line Meter and Relay Diagram,

4160 Volt System

437579, Sh. 1

Schematic Diagram 4 kV Diesel Generator Control

No. 11 and 12

437608

Schematic Diagram Component Cooling System Motor

Operated Valves

437667, Sh. 1

Schematic Diagram 4 kV Diesel Generator Control

No. 13

437683, Sh. 1

Schematic Diagram Chemical and Volume Control

System Solenoid Valves

437819, Sh. 1

Electrical Diagram of Connection, Diesel Generator,

and Associated Equipment

437902, Sh. 1

Diagram and Panel Schedule Lighting Distribution

437920, Sh. 1

Diagram of Connections, Penetration 8E

441220, Sh. 1

Single Line Diagram for Station Auxiliaries

441493, Sh. 1

Diagram and Panel Schedule Lighting Distribution

480281, Sh. 1