Table 4 Cut Set for VVPSS.

From: RETRACTED ARTICLE: Preliminary risk assessment of in-vessel leakage accident in ITER

Sn

Cut sets

Contribution to TOP event

1

The safety valve connected to the ventilation fails to open

20.11

2

The safety valve connected to the Water supply system fails to open

20.11

3

The safety valve connected to the Drainage Tank fails to open

20.11

4

The pressure relied pipe is leaking

9.69

5

VVPSS rupture disc RD1 fails to open

4.90

6

VVPSS rupture disc RD2 fails to open

4.90

7

Level sensor ML001 failed

4.17

8

Level sensor ML001 failed

4.17

9

Pressure sensor ML001 failed

2.95

10

Pressure sensor ML002 failed

2.95