FAQ 03 HCVS-FAQ-03: Alternate Control Operating Mechanisms Q: What means of alternate manual operation is allowable for use in the HCVS system related
{"Image DocumentName": "FAQ 03 HCVS-FAQ-03: Alternate Control Operating Mechanisms", "Image ImageDescription": "Q: What means of alternate manual operation is allowable for use in the HCVS system related to Order Element The examples of alternate operating mechanisms provided in Order element (e.g., reach-rod with hand wheel or manual operation of pneumatic supply valves from a shielded location) are only intended to be examples. Other means of alternate manual operation are acceptable including but not limited to: Separate electrical components with diverse and flexible power supplies (such as the normal valve operators with FLEX power)  Solenoid valves with manual overrides that may be used to manually operate vent valves without electrical power. Manual valves in pneumatic supply and vent lines that may be used to manually operate vent valves independent of solenoid valves or electrical power. Hydraulic operators.   NEI Section 6.1 \u2013 \u2026At least one method of operation of the HCVS should be capable of operating with permanently installed equipment for at least 24 hours during the extended loss of AC power. The system should be designed to function in this mode with permanently installed equipment providing electrical power (e.g., DC power batteries or electrical or pneumatic operation) valve motive force (e.g., N2/air cylinders) The primary or alternate method of HCVS operation may use an alternative method to that described by this requirement.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}