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

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WP2‐005.030.000‐SRS‐002Revision : BIdent Requirement Applicability Parent VerificationSYS_REQ_5810Safety ground. Electrical safetyground shall be designedaccording to the regulationsimposed by the local government.TBD5.1.10 CorrosionIdent Requirement Applicability Parent VerificationSYS_REQ_5820Corrosion protection. SKA1equipment and buildings shall beprotected against corrosion.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5830Corrosion protection in air flows.SKA1 electronics and connectorsin areas with a higher air flow (forcooling) or outdoor environmentshall be additionally protectedagainst corrosion.TBD5.1.11 SeismicityIdent Requirement Applicability Parent VerificationSYS_REQ_5910Earthquakes. SKA1 equipmentand buildings shall be protectedagainst earthquakes with amagnitude up to Richter 3.8(TBC).TBD5.1.12 Other AspectsAdditional aspects that will need consideration in this chapter include:Temperature and humidityo Operational• External/exposed equipment• Internal equipment• Human accessible and work areaso Non operational (storage and transportation)Exposure to raino Operational with full performanceo SurvivalHailo SurvivalIce and snow (TBC)Lightning2011‐02‐14 Page 44 of 58
WP2‐005.030.000‐SRS‐002Revision : Bo Direct strikeo Nearby strikeWindo Operationalo SurvivalPressureo Operationalo Survival (air transport)Solar radiation (over and above the ambient temperature)Ingress protection (IP rating) of equipment is different areas (exposed, indoors, etc)Dust and sando Exposed equipment against dust stormso Dust ingress into equipment and buildings especially fibre opticso Electrically charged dustSalt laden atmosphereo Outlying stations close to coastal environmentsVibrationo Operationalo Non operational (transportation of equipment)Shocko Operationalo Non operational (transport of equipment)o Non operational (handling)Solventso Cleaning of equipmentFauna and florao Fungal growtho AnimalsSevere weathero Floodso Severe raino High windso Hail5.2 Engineering Design Constraints5.2.1 GeneralIdent Requirement Applicability Parent VerificationSYS_REQ_6110 Deployment locations. <strong>The</strong> SKA 1shall be installed at the SKA coresite and at the SKA1 station sites.TBDFixed antenna locations. SKA1 will not have movable antenna receptors for the purpose of changingbaseline length. <strong>The</strong> uv(w) coverage is fixed.2011‐02‐14 Page 45 of 58
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Page 3 and 4: WP2‐005.030.000‐SRS‐002Revisi
Page 15 and 16: 3.3.5 Spectral ResolutionWP2‐005.
Page 25 and 26: 3.10.3 Monitoring requirementsWP2
Page 43: WP2‐005.030.000‐SRS‐002Revisi
Page 57 and 58: 9 Quality Assurance ProvisionsWP2

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