Simrad ST90 - Installation Requirements; Supply Power Requirements; Uninterruptible Power Supply (UPS) Requirements

442703/B
47
Installationrequirements
Topics
Supplypowerrequirements,page47
UninterruptiblePowerSupply(UPS)requirements,page47
Cablesandwiringrequirements,page48
Compassdeviationrequirements,page48
Noisesources,page49
Drydockingrequirements,page49
Requirementforclassicationapproval,page49
Supplypowerrequirements
Observethegeneralrequirementsrelatedtothesupplypower.
ThesupplyvoltagetotheST90mustbekeptwithin±10%oftheinstallation’snominal
voltage.
Maximumtransientvoltagevariationsonthemainswitchboard’sbus-barsarenotto
exceed-15%to+20%ofthenominalvoltage(exceptunderfaultconditions).
Relatedtopics
Installationrequirements,page47
UninterruptiblePowerSupply(UPS)requirements
ObservetheserequirementsrelatedtotheUninterruptiblePowerSupply(UPS).
ItisimportanttoensurecontinuousoperationoftheST90independentofvaryingquality
ofthevessel'smainssupply.Theuseofuninterruptiblepowersuppliesistherefore
required.
Uninterruptiblepowersupplyunitsarenot
includedinthestandardST90delivery.These
itemsmustbepurchasedlocally.
Severalcommercialtypesareavailable.Tochoosethebestpowersolutionforyour
ST90installation,considerenvironmentalconditions,spaceavailable,theavailability
anddurationofthebatteries,andthepowerrequirementsoftheST90.
Twosystemsarerequired:
1OnepowersystemisrequiredtopowertheProcessorUnitandthedisplay.
2OnepowersystemisrequiredtopowertheTransceiverUnit.
SimradST90