Zte ZXR10 8900 Series - Auxiliary Equipment Inspection; Grounding Inspection; Power Supply Requirements Inspection

Chapter3InstallationPreparation
Theequipmentroommustcomplywithlocalreresistance
standard.
PowerSupplyRequirements
Inspection
PowersupplyrequirementsinspectionincludesDCandACpower
supplyrequirementsinspection.
DCPowerSupplyNominalvoltageofpowersupplyprovidedforZXR108900series
switchbyequipmentroomis-48Vandtheallowedvariationrange
is-57V~-40V .
NoiselevelindicesoftheDCvoltagemustmeetgeneraltechnical
specicationsissuedbytheformerMPT .
DCpowersupplymustbeinstalledwithover-voltage/over-current
protectionandindicators.
ACPowerSupplySingle-phasepowersource:150V~300V ,45Hz~60Hz,wavedis-
tortion<5%.
Voltagefrequencyrequirementsforstandbyelectricgeneratorare
thesameasthoselistedabovebutitswavedistortionrangeis
5%~10%.
GroundingInspection
GroundingInspectionincludesthefollowingitems:
�Groundwiresintheequipmentroomshouldbearrangedradial
orinplanemode.Groundwiresshouldbewiredseparately.
Electriccircuitsformedbycorrugatedsteelbarsinthebuilding
orviatheracksarenotallowed.
�Incaseofajointgroundingmode,resistancemustbelessthan
1Ω.Thesectionalareaofgroundingcabledependsonmaxi-
mumbearablecurrent.Thegroundingcablemustbesheathed
coppercableinsteadofbarecopperwire.
AuxiliaryEquipment
Inspection
AuxiliaryEquipmentInspectionincludesthefollowingitems:
�DDFandODFframesrelatedtocurrentprojectmusthavebeen
installed.Thecapacitymustbesufcientandallopticalcables
musthavebeenlaid.
CondentialandProprietaryInformationofZTECORPORATION13