N289.3-M81 Design Procedures for Seismic Qualification of CANDU Nuclear Power Plants

Clause 5.6.2
  Question: The seismic analysis for Feeder piping in operating nuclear plants under DBE ASME level C conditions is sometimes performed using damping values up to 8% as supported by testing and independent review in accordance with Clause 5.6.2 of CSA N289.3. Is the use of damping value up to 8% in CANDU feeder seismic analysis in accordance with Clause 5.6.2?
  Answer: Yes.