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

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WP2‐005.030.000‐SRS‐002Revision : BThe ability of the SKA1 to perform its mission within the required performance shall bedemonstrated by tests, analysis, inspection, verification of records or demonstration according tothe system verification requirements.Ident Requirement Applicability Parent VerificationSYS_REQ_5610EMC safety margin. The EMCsafety margin, which is defined asthe ratio between susceptibilitythreshold and the interference atany point within the system, shallbe greater than TBD dB.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5620EMC compatibility marking. All"off‐the‐shelf" equipment appliedwithin SKA1 shall posses as aminimum the host country EMCmarking, including electrical andelectronic supporting andinfrastructural equipment.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5630Grounding concept. A hybridgrounding concept as shown infigures TBD shall be used for EMCpurposes. Ground loops involvingDC, and low frequency AC,currents shall be avoided insidethe system. Intentional currentsthrough structure are notpermitted. (to be elaborated)TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5640EMC design efforts. Maximumeffort (to be detailed) shall be putinto designing signal interfaces towithstand noisy environmentsand to minimize the generation ofexcessive noise.TBDEmission requirements and tests. Emission requirements, both conducted and radiated) and tests(to be elaborated)Susceptibility requirements and tests. Susceptibility requirements and tests (to be elaborated)2011‐02‐14 Page 42 of 58
WP2‐005.030.000‐SRS‐002Revision : B5.1.7 Self‐generated RFI environmentIdent Requirement Applicability Parent VerificationSYS_REQ_2910Self‐generated RFI susceptibility.Interference due to selfgeneratedRFI shall not degradethe performance of theinstrument by greater than 1% byany measure (TBC).TBD5.1.8 LightningIdent Requirement Applicability Parent VerificationSYS_REQ_5710Lightning dischargesusceptibility. The SKA 1 shall beable to withstand theelectromagnetic field impactdefined in TBD during operationor in any other mode without anydamage or characteristicsdegradation because of alightning discharge.TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5720Lightning protection. SKA1dedicated buildings andequipment located on sites shallbe protected to minimize theeffects of a direct lightning strikeusing certified methods (e.g. asdescribed in NEN 1014).TBDIdent Requirement Applicability Parent VerificationSYS_REQ_5730Lightning discharge flagging.Observation data taken during alightning strike shall be flagged.TBDDirect strikes. TBC5.1.9 GroundingRequirements regarding grounding of equipment, personnel safety and instrument performance(electrical grounding concept), use of design standards2011‐02‐14 Page 43 of 58
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Page 15 and 16: 3.3.5 Spectral ResolutionWP2‐005.
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ska phase 1 system requirements specification - The Square ...

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