Development and Application examples of Nuclear Safety

Grade PLC(POSAFE-Q)

Contents

1. Introduction to PONUTech

2. Development and Application of Nuclear Safety grade PLC (POSAFE-Q)

3

Overview of Development POSAFE-Q1) (1)

• History of Development

1) POSAFE-Q : Qualified POSCO ICT Safety PLC

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4

Overview of Development POSAFE-Q (2)

• KNICS(Korea Nuclear Instrumentation and Control System) National Project

Phase 1 (01.7.1 – 04.6.30)

Prototype Developing H/W & S/W Spec. H/W & S/W Design Function & Performance Testing

Qualification Testing

Phase 2 (04.7.1 – 08.6.30)

End Product Developing H/W & S/W Redesign 3rd Part Review Performance Testing Qualification Testing Licensing

Req./Spec./Test (KAERI)

Design/Fab. (POSCO ICT)

V&V (KAERI)

3rd Part Review (ISTec)

5

Overview of Development POSAFE-Q (3)

• Process of Development and Testing

Manufacturing

Function & Performance Test

Design Code & Standard

Plan Evaluation

EQ (Equipment Qualification) Test

6

Power Modules

Processor Module

Comm. Modules

Input/Output Modules

Configuration of POSAFE-Q

• Main Module of POSAFE-Q

– Processor Module

– Communication Modules

– Digital Input/Output Modules

– Analog Input/Output Modules

– Power Module

– Local bus extension Module

– Pulse counter Module

– Software Development Tool

• Size

– 19inch standard

– 482.6 x 281.35 x 294mm

7

Cyber Security of POSAFE-Q(1)

• RG 1.152, Criteria for Use of Computers in Safety Systems of Nuclear Power Plants

• RG 5.71, Cyber Security Programs for Nuclear Facilities

• KINS/규제지침 8.22, 계측제어 계통의 사이버보안

8

Cyber Security of POSAFE-Q(2)

9

Features of POSAFE-Q

• Reliability of POSAFE-Q – Development according to the Nuclear Q-Class criteria

– Quality assurance(H/W and S/W) according to 10CFR50, Appendix B

– Perform Equipment Qualification that meet Safety Class 1E(EPRI TR-107330)

– MIL-HDBK-217F based reliability analysis and feedback

– Perform Software V&V that meet Reg. Guide 1.172 and IEEE Std. 1012

• Convenience of POSAFE-Q – Provides user-friendly Engineering Tool(pSET-II)

– Online maintenance of input/output and communication modules are available (Hot Swap)

– A variety of online self-diagnostic capabilities(Loopback, Watchdog, etc.)

• Applicability of POSAFE-Q – Safety system can be implemented to provides a variety of communication

functions

– Provides a variety of special & input/output modules

10

• Certification of KEPIC1) to meet Class 1E Criteria (‘05. 10)

– Korea Electric Association

• Pass Equipment Qualification to meet Q-Class Criteria (‘08.09, ‘11.7)

– KTL2) Testing

• Approval from the Nuclear Safety and Security Commission of Topical Report(POSAFE-Q)

(‘09. 02, ‘12.1)

– KINS3) audit

Authentication and authorization of POSAFE-Q

1)KEPIC : Korea Electric Power Industry Code

2)KTL : Korea Testing Laboratory

3)KINS : Korea Institute of Nuclear Safety

11

• Verification equipment testing of Nuclear Safety I&C System as a platform(POSAFE-Q) for applying to planned Nuclear Power Plant in Korea

- @ Doosan heavy Industries & Construction

Application of POSAFE-Q

1)RPS : Reactor Protection System

2)ESF-CCS : Engineered Safety Feature- Component Control System

3)RCOPS : Reactor Core Protection System

RPS1)

ESF-CCS2)

RCOPS3)

• Applied to SIN UL-JIN 1/2 Nuclear Power Plant