Post accident monitoring (PAMS)

Question 1

What is the purpose of the Post Accident Monitoring System (PAMS) ?

Answer 1

• provide reliable information to operators and emergency plan managers for assessment of plant conditions during and after an accident

Question 2

What are the only controls that are on PAMS panels ?

Answer 2

head vent valves

8078 A, B, C, D

Question 3

What are the different items on PAMS ?

Answer 3

PAM1

• Lacc
• Radwaste
• CNMT cooling
• gamma metrics
• RVLIS
• CET
• SCMM
• CNMT lvl, rad, H2, Press

PAM2

• rad FHB, CNMT, PV, PV room

PAM3/4 (Trn A/B)

• CET
• RVLIS

Question 4

Do PAMS indications require alignment to perform their functions?

Answer 4

no, all PAMS indications always provide indications with the exception of CNMT H2 monitors (CEL 82 and 83)

Question 5

What are some characteristics of a PAMS indication?

Answer 5

• Key parameter
• sufficient range for accident
• Capable of operating in harsh environments
• when necessary, diverse indications available