| Clause 4.5.1 | ||
| Question: | Can an FHA be used to replace a CCR if the FHA has included a CCR as a part of analysis? | |
| Answer: | Yes, as long as it is clear in the document. | |
| Clause 4.6 | ||
| Question: | Is it allowed to apply a performance-based approach partially? It may be best to try to meet the requirement and to apply the performance based approach to the cases where these requirements cannot be met. | |
| Answer: | Yes. | |
| Clause 5.2 | ||
| Question: | Does this imply that preventing death & injury of emergency response (ER) personnel is not an important goal? ER personnel may or may not be plant occupants. | |
| Answer: | No, anyone in the plant at any time is an occupant | |
| Clause 5.7.3.2 | ||
| Question: | Is it more appropriate for the fire alarm system to be in accordance with the FHA instead of FSSA? The FHA evaluates fire hazards and the appropriate fire protection systems and features, whereas the FSSA is only concerned with nuclear safety objectives. There are many areas in the plant that do not contain fire safe shutdown systems that will still have fire alarm systems. The FHA would cover these areas, whereas the FSSA would not. | |
| Answer: | No. | |
| Clause 5.7.7 | ||
| Question: | Is protection against seismic hazards required to be assessed in the FHA/FSSA? The Annex B does not address the seismic-induced fire. | |
| Answer: | No, refer to clauses 11.4 and A.11.4 | |
| Clause 5.7.7.1 | ||
| Question: | Nuclear safety includes the radioactive materials in this Standard. Is seismic qualification required for those fire protection systems necessary to limit the release of radioactive material where the release limits would not be exceeded? | |
| Answer: | No. | |
| Clause 5.7.7.3 | ||
| Question: | Does manual fire fighting capability after an earthquake imply that fire route shall be seismically qualified? | |
| Answer: | No, however means must be available (including access) to fight a fire, post seismic event. | |
| Clause 5.7.7.4 | ||
| Question: | Is the intent that these services be available at plant? | |
| Answer: | Yes, These services do not necessary have to operate during the seismic event but must be available after the event. | |
| Clause 5.7.8 | ||
| Question: | Does this include control equipment room, shift supervisor office, kitchen, etc? How is the control room complex defined? | |
| Answer: | Yes, refer to the definition of Control Room Complex. | |
| Clause 6.5.4.2 | ||
| Question: | The paragraph is not clear in which assessment report it should be located. Should the structural steel analysis for fire be part of the FHA? | |
| Answer: | No, it is not required to be, however, it should be at least referenced in the FHA. | |
| Clause 7.4.2 | ||
| Question: | Is it the intent of the Standard to seismically qualify firewater reservoirs, fire pumps, and class 3 power supply systems for fire pumps? | |
| Answer: | No, unless this equipment is located within the areas identified in Clause 7.4.2. | |
| Clause 8.2.3.7.2 (a) | ||
| Question: | Construction requirement and as per Clause 4.3.1 not retroactively applied to existing SSCs. Is it the intent that this requirement does not apply to existing relocatable structures, unless moved from existing location (e.g. applies to new relocatable structures)? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 8.2.3.7.2 (b) | ||
| Question: | Is the intent of this clause that existing relocatable structures are grandfathered under NBBC code of record and processes in-place at the time originally located and that new structures and re-location of existing structures are covered by SATM and complies with this requirement? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 8.2.3.7.2 (c) | ||
| Question: | Is the intent of this clause that existing relocatable structures are grandfathered under NBCC/NFCC code of record and processes in-place at the time originally located and new structures and re-location of existing structures are covered by SATM and complies with this requirement? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 8.2.3.7.2 (d) | ||
| Question: | Is the intent of this requirement that Clause 7 is a design Clause and as per Clause 4.3.1 not retroactively applied to existing SSCs; therefore, this requirement only applies to new structures and relocation of existing structures? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 8.2.3.7.2 (e) | ||
| Question: | Is the intent of this requirement that Clause 7 is a design Clause and as per Clause 4.3.1 not retroactively applied to existing SSCs; therefore, this requirement only applies to new structures and relocation of existing structures? | |
| Answer: | No, portable fire extinguishers are operational requirements as per the National Fire Code of Canada. | |
| Clause 8.2.3.7.2 (f) | ||
| Question: | Is the intent that this is a design requirement and as per Clause 4.3.1 not retroactively applied to existing SSCs; therefore, does not apply to existing relocatable structures, unless moved from existing location (e.g. applies to new relocatable structures)? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 8.2.3.7.2 (g) | ||
| Question: | Is the intent that this is a design requirement and as per Clause 4.3.1 not retroactively applied to existing SSCs; therefore, does not apply to existing relocatable structures, unless moved from existing location (e.g. applies to new relocatable structures)? | |
| Answer: | For existing plants, yes, unless moved/relocated. Still requires assessment under the FHA/FSSA. | |
| Clause 10.1.4 | ||
| Question: | Does the postulated fire here refer to: (a) Design Basis Fire; (b) fire analysis in the FSSA; or (c) fire in other separate analysis? |
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| Answer: | Yes, it could be any of the mentioned options, depending on the situation. | |
| Clause 10.4.1 | ||
| Question: | Clause 10.2.1 directs that NFPA 600 & 1081 shall be followed unless otherwise specified in this Standard. Clause 10.4.1 describes a fitness requirement. Does the fitness requirement specified in Clause 10.4.1 supersede all of the fitness requirements described in NFPA 600 & 1081? | |
| Answer: | No. NFPA 600 and 1081 physical fitness requirements apply, in addition to those requirements of CSA N293, Clause 10.4.1. Clauses 4.5.1 & 4.1.2.1 item (2) of NFPA 600 and 4.1 & 4.3.3 of NFPA 1081 requires the documentation of training requirements, including fitness and entrance requirements via the documented program, including initial and annual fitness requirements and testing. |
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| Clause 11.3 (b) | ||
| Question: | This is a new requirement for the FSSA to look at limiting the release of radioactive material from sources outside the reactor. Is the intent that FSSAs be re-done to include this requirement? | |
| Answer: | Yes, FSSA's are required to be revised as per the requirements of CSA N293. | |
| Clause 11.4 (g) | ||
| Question: | This is a new requirement for the FSSA to look at limiting the release of radioactive material form sources outside the reactor. Is the intent that FSSAs be re-done to include this requirement? | |
| Answer: | Yes, FSSA's are required to be revised as per the requirements of CSA N293. | |
| Request for Interpretation | ||
| Request for interpretation, dated September 23, 2010, regarding Clause 8.2.3.3 of the CSA N293-07 has been reviewed by the Technical Committee on Fire Protection in CANDU Nuclear Power Plants. The committee agreed to the following responses and approved them by ballot that closed on December 8, 2010: | ||
| Question 1: | Is the intent of the last sentence of Clause 8.2.3.3 to mean that fabrics or plastic films be certified in accordance with Test Method 2 in NFPA 701? | |
| Answer 1: | Yes. The following is selected text from NFPA 701-2004 as referenced in CSA N293-07:"1.1.2.4 Test Method 2 shall apply to fabrics used in the assembly of awnings, tents, tarps, and similar architectural fabric structures and banners". | |
| Question 2: | Is the intent of the last sentence of Clause 8.2.3.3 to mean that fabrics or plastic films be certified in accordance with the Small flame test and Large flame test in CAN/ULC-S109? | |
| Answer 2: | Yes. The following is selected text from CAN/ULC S109-03 as referenced in CSA N293-07: "2.5 Flame-resistant fabrics and films shall comply with the performance requirements of both the Small-Flame Test and the Large-Flame Test". | |