Citizservicemanual
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F U N C T I O N T E S T S
9.9 Protectiveinsulationtest
9.9.1 Whatcoffeemachineshavetobetestedandwhen?
Thistestisnecessary
forclass1and2equipment(with/withoutprotectiveearth)
afterarepairwheneverageneraldisassemblyoftheplatformand/orcoreunitwas
performed.
9.9.2 General
Legalregulation
Incaseofarepair/modificationofthecoffeemachine,therepaircentreisboundbylaw
toprotecttheuser/consumerby
restoringtheregularconditionoftheapplianceand
performingtherespectivetestsaccordingtoEN/IEC603351“Safetyofhousehold
andsimilarelectricalappliances”andnationalregulations(e.g.DINVDE0701).
Description
Theinsulationtest
assuresthatwiringandinsulationofthecoffeemachinefullfillthenormativerequire
mentsafterarepair,
ratestheinsulationcapabilityofthecoffeemachine,
isaverydangeroustestbecauseofahightestvoltage(500VDC).
Fortheinsulationtest,phaseandneutralwireareshuntedatthepowerplug.Thena
testvoltageisappliedbetweenphase/neutralandselectedpartsofthecoffeemachine.
Testequipment
Specialtestequipmentisneededthatcomplieswiththeregulationstoperforminsula
tionandwithstandingvoltagetests.Detailedrequirementsandtolerancesmustbeveri
fiedwithyourlocalauthoritiesormeasurementsupplierinanycase.
Ideallythetestequipmenthasanationalpowersocketfortesting,sothatthecoffee
machinecanpluggedindirectly.Otherwiseaspecialshuntisnecessarytoconnectthe
phaseandneutralpinofthecoffeemachine’spowerplug.
Testreport
Forlegalreasonsarepairortestreportshouldbepreparedandfiledwithfollowinginfor
mation
customer(name,address)
typeandserialnumberofcoffeemachine
dateofrepair/test(s)
performedtest(s)/measuringvalue(s),testpoints
usedtestequipment
signature
Ask
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for
recommendations
abouttestequipment.