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MI 3108 EurotestPV Metingen AC laagspanningsinstallaties
61
5.8 PE testklem
Het kan gebeuren dat een gevaarlijke spanning wordt aangelegd op de PE geleider of
andere toegankelijke metalen delen. Dit is een zeer gevaarlijke situatie omdat de PE
geleider en de MPE's (multi point earthings) geacht worden geaard te zijn. Een
frequente oorzaak voor deze fout is een verkeerde bedrading (zie voorbeelden
hierna).
Als men de TESTtoets indrukt in alle functies die netvoeding vereisen, voert men
automatisch deze test uit.
Toepassingsvoorbeelden van de PE testklem
Figuur.36: Omgekeerde L en PE geleiders (plugcommander)
Reversed phase and
protection conductors!
MOST DANGEROUS
SITUATION!
Figuur 5.37: Omgekeerde L en PE geleiders (gebruik van 3-draadsnoer)
L1
N
PE
N PE L
61


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