MicrowaveradiorelaylinkZENITH80
45/52 1.2
6. SAFETYCHECK
Each ZENITH 80 radio link is verified within check‐out inspection, and its parameters are measured
accordingtostandards(Inspectionandtestingofelectricalinstallations).AccordingtostandardstheODU
ofthe radio relaylinkZENITH80is anelectricaldeviceusedintheoutsideenvironment,suppliedbySELV
(Safety Extra
‐Low Voltage) supply and inside of the unit there is no higher voltage than SELV. The unit
allowsconnectionofdeadpartsbyagroundingbolttoaprotectioncircuitthatservesalsoasaprotection
againstovervoltageandovercurrentofatmosphericorigin.
InagreementwiththestandardstheODUbelongsto
• accordingtoitsuse–appliancesusedinoutsideareas
• theclassIIIaccordingtoprotection–protectionagainstinjurybyelectriccurrentisbasedon
theconnectiontoaSELVsupply,withthevoltagenohigherthanSELV.
According to the standards regular inspections and checks of
safe status during operation are
recommended once every 24 months.Inspections andchecks are recommendedto be performed by the
supplierprofessionalservice.
Thefollowingactivitiesarerecommendedduringregularchecksandinspections:
• CheckofODUtightness.
• ConditionofantennaOPN(protectionagainsticing)cover.
• Statusofinterconnectcableanditsgrommets.
• Tightening and lubrication of all attachment bolts and nuts. No construction part can be
weakenedordamagedbycorrosion.
• Checkingofgrounding connectionstrengthatgroundingpoints
andtheirconnectiontoearth.
• Findingpossibledamageorchangesofthewholesystemthatwouldrequirefurthermeasures
andtheverificationofsafety.
• Werecommendmeasuringandrecordingthelevelofreceivedsignal.