ska phase 1 system requirements specification - The Square ...

WP2‐005.030.000‐SRS‐002Revision : B5.3.10 LifeIdent Requirement Applicability Parent VerificationSYS_REQ_7940Reusability. Reusability of SKA1equipment shall be ensuredthrough design and byrefurbishment and maintenancewhere this has beendemonstrated as being costeffective.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_7950Spare parts. SKA1 spare partsshall have a storage life consistentwith availability and use duringthe full operational lifetime of theSKA1 equipment to which itapplies.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_7960Support equipment life‐time.SKA1 support equipment shall bedesigned to maintain SKA1 for 12(TBC) years.TBD6 Interface RequirementsExternal Interfaces are defined as interactions or communications with the world outside SKA1.Internal interfaces are defined as interactions or communications between or internal in SKA1subsystems.6.1 External Interfaces6.1.1 PowerIdent Requirement Applicability Parent VerificationSYS_REQ_8110Supply power. The powersupplied to the SKA1 systemsshall have the followingcharacteristics (TBC):a) voltage 380 V +/‐ 10%b) 3 phasesc) 50 Hz +/‐ 1 HzTBD2011‐02‐14 Page 53 of 58