Nespresso Essenza C91 - Protective Earth Continuity Test Introduction

28
FunctionTests
ServiceManualC91/D91 enVersion1.0
Protectiveearthcont inuitytest(1)
Whatcoffeemachinemodelhastobetest
edandwhen?
Thistestisnecessary
 forclass1equipment(threewirepower
cordwithprotectiveearth)
 afterarepairwheneverthehousingwas
openedandforexampleageneraldisas
semblywasperformed.
Thereforeallcoffeemachinemodelshaveto
betestedafteropeningthehousing,except
countryspecificmodelswithoutaprotective
earthconnection.
General
Legalregulation
Incaseofarepair/modificationofthecoffee 
machine,therepaircentreisboundbylawto
protecttheuser/consumerby
 restoringtheregularconditionoftheappli
anceand
 performingtherespectivetestsaccording
toE N/IEC603351“Safetyofhousehold
andsimilare lectricalappliances”and
nationalregulations(e.g.DINVDE0701).
Description
Protectiveearthcontinuitymeasurementsare
madebetweentheprotectiveearthterminalof
thepowerplugand
 thethermoblock,
 allconductive,touchablepartsofthecoffee
machinewheredangerousvoltagecould
occurifthebasicinsulationwastofail.
Thistestassuresthat
 theground(earth)connectiondoesnot
haveaninterruptionbetweenthepower
plugandthethermoblock
 thepermissiblegroundresistanceisless
than0.3Ohms(withatestcurrentof
200 mADC).
Testequipment
Specialtestequipmentisneededthat
complieswiththeregulationstoperform
protectiveearthcontinuitymeasurements.
Detailedrequirementsandtolerancesmustbe
verifiedbyyourlocalauthoritiesormeasure
mentsupplierinanycase.
Ask Nespresso forrecommenda
tionsabouttestequipment.
Testreport
Forlegalreasonsarepairortestreportshould
bepreparedandfiledwithfollowinginforma
tion
 customer(name,address)
 typeandserialnumberofcoffeemachine
 dateofrepair/test(s)
 performedtest(s)/measuringvalue(s)
 usedtestequipment
 signature
Testsequence
Dangerofelectrocution!
Donotpluginthecoffeemachine
duringtheprotectiveearthconti
nuitytest.
Readandobservesafetyinstruc
tionsinusermanualoftestequip
ment.
Thistestsequenceisnotapplicable
forcoffeemachineswithtwowire
powercords(withoutgroundpin).
Continuedonnextpage.